]> git.donarmstrong.com Git - mothur.git/blobdiff - screenseqscommand.cpp
added sets to amova and homova commands. added oligos to make.contigs. added metadat...
[mothur.git] / screenseqscommand.cpp
index bb8d1f53714e3d953eb0f6c9c7bd4a829b3cb833..2b5ebc1a844420e699b04df0dcd6e144befbf1fe 100644 (file)
  */
 
 #include "screenseqscommand.h"
-#include "sequence.hpp"
+#include "counttable.h"
 
+//**********************************************************************************************************************
+vector<string> ScreenSeqsCommand::setParameters(){     
+       try {
+               CommandParameter pfasta("fasta", "InputTypes", "", "", "none", "none", "none",false,true); parameters.push_back(pfasta);
+        CommandParameter pname("name", "InputTypes", "", "", "NameCount", "none", "none",false,false); parameters.push_back(pname);
+        CommandParameter pcount("count", "InputTypes", "", "", "NameCount-CountGroup", "none", "none",false,false); parameters.push_back(pcount);
+               CommandParameter pgroup("group", "InputTypes", "", "", "CountGroup", "none", "none",false,false); parameters.push_back(pgroup);
+               CommandParameter pqfile("qfile", "InputTypes", "", "", "none", "none", "none",false,false); parameters.push_back(pqfile);
+               CommandParameter palignreport("alignreport", "InputTypes", "", "", "none", "none", "none",false,false); parameters.push_back(palignreport);
+               CommandParameter ptax("taxonomy", "InputTypes", "", "", "none", "none", "none",false,false); parameters.push_back(ptax);
+               CommandParameter pstart("start", "Number", "", "-1", "", "", "",false,false); parameters.push_back(pstart);
+               CommandParameter pend("end", "Number", "", "-1", "", "", "",false,false); parameters.push_back(pend);
+               CommandParameter pmaxambig("maxambig", "Number", "", "-1", "", "", "",false,false); parameters.push_back(pmaxambig);
+               CommandParameter pmaxhomop("maxhomop", "Number", "", "-1", "", "", "",false,false); parameters.push_back(pmaxhomop);
+               CommandParameter pminlength("minlength", "Number", "", "-1", "", "", "",false,false); parameters.push_back(pminlength);
+               CommandParameter pmaxlength("maxlength", "Number", "", "-1", "", "", "",false,false); parameters.push_back(pmaxlength);
+               CommandParameter pprocessors("processors", "Number", "", "1", "", "", "",false,false); parameters.push_back(pprocessors);
+               CommandParameter pcriteria("criteria", "Number", "", "90", "", "", "",false,false); parameters.push_back(pcriteria);
+               CommandParameter poptimize("optimize", "Multiple", "none-start-end-maxambig-maxhomop-minlength-maxlength", "none", "", "", "",true,false); parameters.push_back(poptimize);
+               CommandParameter pinputdir("inputdir", "String", "", "", "", "", "",false,false); parameters.push_back(pinputdir);
+               CommandParameter poutputdir("outputdir", "String", "", "", "", "", "",false,false); parameters.push_back(poutputdir);
+               
+               vector<string> myArray;
+               for (int i = 0; i < parameters.size(); i++) {   myArray.push_back(parameters[i].name);          }
+               return myArray;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "ScreenSeqsCommand", "setParameters");
+               exit(1);
+       }
+}
+//**********************************************************************************************************************
+string ScreenSeqsCommand::getHelpString(){     
+       try {
+               string helpString = "";
+               helpString += "The screen.seqs command reads a fastafile and screens sequences.\n";
+               helpString += "The screen.seqs command parameters are fasta, start, end, maxambig, maxhomop, minlength, maxlength, name, group, count, qfile, alignreport, taxonomy, optimize, criteria and processors.\n";
+               helpString += "The fasta parameter is required.\n";
+               helpString += "The alignreport and taxonomy parameters allow you to remove bad seqs from taxonomy and alignreport files.\n";
+               helpString += "The start parameter is used to set a position the \"good\" sequences must start by. The default is -1.\n";
+               helpString += "The end parameter is used to set a position the \"good\" sequences must end after. The default is -1.\n";
+               helpString += "The maxambig parameter allows you to set the maximum number of ambigious bases allowed. The default is -1.\n";
+               helpString += "The maxhomop parameter allows you to set a maximum homopolymer length. \n";
+               helpString += "The minlength parameter allows you to set and minimum sequence length. \n";
+               helpString += "The maxlength parameter allows you to set and maximum sequence length. \n";
+               helpString += "The processors parameter allows you to specify the number of processors to use while running the command. The default is 1.\n";
+               helpString += "The optimize and criteria parameters allow you set the start, end, maxabig, maxhomop, minlength and maxlength parameters relative to your set of sequences .\n";
+               helpString += "For example optimize=start-end, criteria=90, would set the start and end values to the position 90% of your sequences started and ended.\n";
+               helpString += "The name parameter allows you to provide a namesfile, and the group parameter allows you to provide a groupfile.\n";
+               helpString += "The screen.seqs command should be in the following format: \n";
+               helpString += "screen.seqs(fasta=yourFastaFile, name=youNameFile, group=yourGroupFIle, start=yourStart, end=yourEnd, maxambig=yourMaxambig,  \n";
+               helpString += "maxhomop=yourMaxhomop, minlength=youMinlength, maxlength=yourMaxlength)  \n";    
+               helpString += "Example screen.seqs(fasta=abrecovery.fasta, name=abrecovery.names, group=abrecovery.groups, start=..., end=..., maxambig=..., maxhomop=..., minlength=..., maxlength=...).\n";
+               helpString += "Note: No spaces between parameter labels (i.e. fasta), '=' and parameters (i.e.yourFasta).\n";
+               return helpString;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "ScreenSeqsCommand", "getHelpString");
+               exit(1);
+       }
+}
+//**********************************************************************************************************************
+string ScreenSeqsCommand::getOutputFileNameTag(string type, string inputName=""){      
+       try {
+        string outputFileName = "";
+               map<string, vector<string> >::iterator it;
+        
+        //is this a type this command creates
+        it = outputTypes.find(type);
+        if (it == outputTypes.end()) {  m->mothurOut("[ERROR]: this command doesn't create a " + type + " output file.\n"); }
+        else {
+            if (type == "fasta")            {   outputFileName =  "good" + m->getExtension(inputName);   }
+            else if (type == "taxonomy")    {   outputFileName =  "good" + m->getExtension(inputName);   }
+            else if (type == "name")        {   outputFileName =  "good" + m->getExtension(inputName);   }
+            else if (type == "count")        {   outputFileName =  "good" + m->getExtension(inputName);   }
+            else if (type == "group")       {   outputFileName =  "good" + m->getExtension(inputName);   }
+            else if (type == "accnos")      {   outputFileName =  "bad.accnos";   }
+            else if (type == "qfile")       {   outputFileName =  "good" + m->getExtension(inputName);   }
+            else if (type == "alignreport") {   outputFileName =  "good.align.report";                   }
+            else { m->mothurOut("[ERROR]: No definition for type " + type + " output file tag.\n"); m->control_pressed = true;  }
+        }
+        return outputFileName;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "ScreenSeqsCommand", "getOutputFileNameTag");
+               exit(1);
+       }
+}
+
+//**********************************************************************************************************************
+ScreenSeqsCommand::ScreenSeqsCommand(){        
+       try {
+               abort = true; calledHelp = true; 
+               setParameters();
+               vector<string> tempOutNames;
+               outputTypes["fasta"] = tempOutNames;
+               outputTypes["name"] = tempOutNames;
+               outputTypes["group"] = tempOutNames;
+               outputTypes["alignreport"] = tempOutNames;
+               outputTypes["accnos"] = tempOutNames;
+               outputTypes["qfile"] = tempOutNames;
+               outputTypes["taxonomy"] = tempOutNames;
+        outputTypes["count"] = tempOutNames;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "ScreenSeqsCommand", "ScreenSeqsCommand");
+               exit(1);
+       }
+}
 //***************************************************************************************************************
 
 ScreenSeqsCommand::ScreenSeqsCommand(string option)  {
        try {
-               abort = false;
+               abort = false; calledHelp = false;   
                
                //allow user to run help
-               if(option == "help") { help(); abort = true; }
+               if(option == "help") { help(); abort = true; calledHelp = true; }
+               else if(option == "citation") { citation(); abort = true; calledHelp = true;}
                
                else {
-                       //valid paramters for this command
-                       string AlignArray[] =  {"fasta", "start", "end", "maxambig", "maxhomop", "minlength", "maxlength",
-                                                                       "name", "group", "alignreport","outputdir","inputdir"};
-                       vector<string> myArray (AlignArray, AlignArray+(sizeof(AlignArray)/sizeof(string)));
+                       vector<string> myArray = setParameters();
                        
                        OptionParser parser(option);
                        map<string,string> parameters = parser.getParameters();
                        
-                       ValidParameters validParameter;
+                       ValidParameters validParameter("screen.seqs");
                        map<string,string>::iterator it;
                        
                        //check to make sure all parameters are valid for command
@@ -36,6 +143,17 @@ ScreenSeqsCommand::ScreenSeqsCommand(string option)  {
                                if (validParameter.isValidParameter(it->first, myArray, it->second) != true) {  abort = true;  }
                        }
                        
+                       //initialize outputTypes
+                       vector<string> tempOutNames;
+                       outputTypes["fasta"] = tempOutNames;
+                       outputTypes["name"] = tempOutNames;
+                       outputTypes["group"] = tempOutNames;
+                       outputTypes["alignreport"] = tempOutNames;
+                       outputTypes["accnos"] = tempOutNames;
+                       outputTypes["qfile"] = tempOutNames;
+                       outputTypes["taxonomy"] = tempOutNames;
+            outputTypes["count"] = tempOutNames;
+                       
                        //if the user changes the input directory command factory will send this info to us in the output parameter 
                        string inputDir = validParameter.validFile(parameters, "inputdir", false);              
                        if (inputDir == "not found"){   inputDir = "";          }
@@ -44,7 +162,7 @@ ScreenSeqsCommand::ScreenSeqsCommand(string option)  {
                                it = parameters.find("fasta");
                                //user has given a template file
                                if(it != parameters.end()){ 
-                                       path = hasPath(it->second);
+                                       path = m->hasPath(it->second);
                                        //if the user has not given a path then, add inputdir. else leave path alone.
                                        if (path == "") {       parameters["fasta"] = inputDir + it->second;            }
                                }
@@ -52,7 +170,7 @@ ScreenSeqsCommand::ScreenSeqsCommand(string option)  {
                                it = parameters.find("group");
                                //user has given a template file
                                if(it != parameters.end()){ 
-                                       path = hasPath(it->second);
+                                       path = m->hasPath(it->second);
                                        //if the user has not given a path then, add inputdir. else leave path alone.
                                        if (path == "") {       parameters["group"] = inputDir + it->second;            }
                                }
@@ -60,7 +178,7 @@ ScreenSeqsCommand::ScreenSeqsCommand(string option)  {
                                it = parameters.find("name");
                                //user has given a template file
                                if(it != parameters.end()){ 
-                                       path = hasPath(it->second);
+                                       path = m->hasPath(it->second);
                                        //if the user has not given a path then, add inputdir. else leave path alone.
                                        if (path == "") {       parameters["name"] = inputDir + it->second;             }
                                }
@@ -68,55 +186,139 @@ ScreenSeqsCommand::ScreenSeqsCommand(string option)  {
                                it = parameters.find("alignreport");
                                //user has given a template file
                                if(it != parameters.end()){ 
-                                       path = hasPath(it->second);
+                                       path = m->hasPath(it->second);
                                        //if the user has not given a path then, add inputdir. else leave path alone.
                                        if (path == "") {       parameters["alignreport"] = inputDir + it->second;              }
                                }
+                               
+                               it = parameters.find("qfile");
+                               //user has given a template file
+                               if(it != parameters.end()){ 
+                                       path = m->hasPath(it->second);
+                                       //if the user has not given a path then, add inputdir. else leave path alone.
+                                       if (path == "") {       parameters["qfile"] = inputDir + it->second;            }
+                               }
+                               
+                               it = parameters.find("taxonomy");
+                               //user has given a template file
+                               if(it != parameters.end()){ 
+                                       path = m->hasPath(it->second);
+                                       //if the user has not given a path then, add inputdir. else leave path alone.
+                                       if (path == "") {       parameters["taxonomy"] = inputDir + it->second;         }
+                               }
+                
+                it = parameters.find("count");
+                               //user has given a template file
+                               if(it != parameters.end()){ 
+                                       path = m->hasPath(it->second);
+                                       //if the user has not given a path then, add inputdir. else leave path alone.
+                                       if (path == "") {       parameters["count"] = inputDir + it->second;            }
+                               }
                        }
 
                        //check for required parameters
                        fastafile = validParameter.validFile(parameters, "fasta", true);
-                       if (fastafile == "not found") { m->mothurOut("fasta is a required parameter for the screen.seqs command."); m->mothurOutEndLine(); abort = true; }
-                       else if (fastafile == "not open") { abort = true; }     
+                       if (fastafile == "not found") {                         
+                               fastafile = m->getFastaFile(); 
+                               if (fastafile != "") { m->mothurOut("Using " + fastafile + " as input file for the fasta parameter."); m->mothurOutEndLine(); }
+                               else {  m->mothurOut("You have no current fastafile and the fasta parameter is required."); m->mothurOutEndLine(); abort = true; }
+                       }
+                       else if (fastafile == "not open") { abort = true; }
+                       else { m->setFastaFile(fastafile); }
        
                        groupfile = validParameter.validFile(parameters, "group", true);
                        if (groupfile == "not open") { abort = true; }  
                        else if (groupfile == "not found") { groupfile = ""; }
+                       else { m->setGroupFile(groupfile); }
+                       
+                       qualfile = validParameter.validFile(parameters, "qfile", true);
+                       if (qualfile == "not open") { abort = true; }   
+                       else if (qualfile == "not found") { qualfile = ""; }
+                       else { m->setQualFile(qualfile); }
                        
                        namefile = validParameter.validFile(parameters, "name", true);
-                       if (namefile == "not open") { abort = true; }
+                       if (namefile == "not open") { namefile = ""; abort = true; }
                        else if (namefile == "not found") { namefile = ""; }    
-
+                       else { m->setNameFile(namefile); }
+                       
+            countfile = validParameter.validFile(parameters, "count", true);
+                       if (countfile == "not open") { countfile = ""; abort = true; }
+                       else if (countfile == "not found") { countfile = "";  } 
+                       else { m->setCountTableFile(countfile); }
+            
+            if ((namefile != "") && (countfile != "")) {
+                m->mothurOut("[ERROR]: you may only use one of the following: name or count."); m->mothurOutEndLine(); abort = true;
+            }
+                       
+            if ((groupfile != "") && (countfile != "")) {
+                m->mothurOut("[ERROR]: you may only use one of the following: group or count."); m->mothurOutEndLine(); abort=true;
+            }
+            
                        alignreport = validParameter.validFile(parameters, "alignreport", true);
                        if (alignreport == "not open") { abort = true; }
-                       else if (alignreport == "not found") { alignreport = ""; }      
+                       else if (alignreport == "not found") { alignreport = ""; }
+                       
+                       taxonomy = validParameter.validFile(parameters, "taxonomy", true);
+                       if (taxonomy == "not open") { abort = true; }
+                       else if (taxonomy == "not found") { taxonomy = ""; }    
                        
                        //if the user changes the output directory command factory will send this info to us in the output parameter 
                        outputDir = validParameter.validFile(parameters, "outputdir", false);           if (outputDir == "not found"){  
                                outputDir = ""; 
-                               outputDir += hasPath(fastafile); //if user entered a file with a path then preserve it  
+                               outputDir += m->hasPath(fastafile); //if user entered a file with a path then preserve it       
                        }
 
                        //check for optional parameter and set defaults
                        // ...at some point should added some additional type checking...
                        string temp;
                        temp = validParameter.validFile(parameters, "start", false);            if (temp == "not found") { temp = "-1"; }
-                       convert(temp, startPos); 
+                       m->mothurConvert(temp, startPos); 
                
                        temp = validParameter.validFile(parameters, "end", false);                      if (temp == "not found") { temp = "-1"; }
-                       convert(temp, endPos);  
+                       m->mothurConvert(temp, endPos);  
 
                        temp = validParameter.validFile(parameters, "maxambig", false);         if (temp == "not found") { temp = "-1"; }
-                       convert(temp, maxAmbig);  
+                       m->mothurConvert(temp, maxAmbig);  
 
                        temp = validParameter.validFile(parameters, "maxhomop", false);         if (temp == "not found") { temp = "-1"; }
-                       convert(temp, maxHomoP);  
+                       m->mothurConvert(temp, maxHomoP);  
 
                        temp = validParameter.validFile(parameters, "minlength", false);        if (temp == "not found") { temp = "-1"; }
-                       convert(temp, minLength); 
+                       m->mothurConvert(temp, minLength); 
                        
                        temp = validParameter.validFile(parameters, "maxlength", false);        if (temp == "not found") { temp = "-1"; }
-                       convert(temp, maxLength); 
+                       m->mothurConvert(temp, maxLength); 
+                       
+                       temp = validParameter.validFile(parameters, "processors", false);       if (temp == "not found"){       temp = m->getProcessors();      }
+                       m->setProcessors(temp);
+                       m->mothurConvert(temp, processors);
+                       
+                       temp = validParameter.validFile(parameters, "optimize", false); //optimizing trumps the optimized values original value
+                       if (temp == "not found"){       temp = "none";          }
+                       m->splitAtDash(temp, optimize);         
+                       
+                       //check for invalid optimize options
+                       set<string> validOptimizers;
+                       validOptimizers.insert("none"); validOptimizers.insert("start"); validOptimizers.insert("end"); validOptimizers.insert("maxambig"); validOptimizers.insert("maxhomop"); validOptimizers.insert("minlength"); validOptimizers.insert("maxlength");
+                       for (int i = 0; i < optimize.size(); i++) { 
+                               if (validOptimizers.count(optimize[i]) == 0) { 
+                                       m->mothurOut(optimize[i] + " is not a valid optimizer. Valid options are start, end, maxambig, maxhomop, minlength and maxlength."); m->mothurOutEndLine();
+                                       optimize.erase(optimize.begin()+i);
+                                       i--;
+                               }
+                       }
+                       
+                       if (optimize.size() == 1) { if (optimize[0] == "none") { optimize.clear(); } }
+                       
+                       temp = validParameter.validFile(parameters, "criteria", false); if (temp == "not found"){       temp = "90";                            }
+                       m->mothurConvert(temp, criteria); 
+                       
+                       if (countfile == "") { 
+                if (namefile == "") {
+                    vector<string> files; files.push_back(fastafile);
+                    parser.getNameFile(files);
+                }
+            }
                }
 
        }
@@ -125,92 +327,241 @@ ScreenSeqsCommand::ScreenSeqsCommand(string option)  {
                exit(1);
        }
 }
-//**********************************************************************************************************************
-
-void ScreenSeqsCommand::help(){
-       try {
-               m->mothurOut("The screen.seqs command reads a fastafile and creates .....\n");
-               m->mothurOut("The screen.seqs command parameters are fasta, start, end, maxambig, maxhomop, minlength, maxlength, name, and group.\n");
-               m->mothurOut("The fasta parameter is required.\n");
-               m->mothurOut("The start parameter .... The default is -1.\n");
-               m->mothurOut("The end parameter .... The default is -1.\n");
-               m->mothurOut("The maxambig parameter .... The default is -1.\n");
-               m->mothurOut("The maxhomop parameter .... The default is -1.\n");
-               m->mothurOut("The minlength parameter .... The default is -1.\n");
-               m->mothurOut("The maxlength parameter .... The default is -1.\n");
-               m->mothurOut("The name parameter allows you to provide a namesfile, and the group parameter allows you to provide a groupfile.\n");
-               m->mothurOut("The screen.seqs command should be in the following format: \n");
-               m->mothurOut("screen.seqs(fasta=yourFastaFile, name=youNameFile, group=yourGroupFIle, start=yourStart, end=yourEnd, maxambig=yourMaxambig,  \n");
-               m->mothurOut("maxhomop=yourMaxhomop, minlength=youMinlength, maxlength=yourMaxlength)  \n");    
-               m->mothurOut("Example screen.seqs(fasta=abrecovery.fasta, name=abrecovery.names, group=abrecovery.groups, start=..., end=..., maxambig=..., maxhomop=..., minlength=..., maxlength=...).\n");
-               m->mothurOut("Note: No spaces between parameter labels (i.e. fasta), '=' and parameters (i.e.yourFasta).\n\n");
-
-       }
-       catch(exception& e) {
-               m->errorOut(e, "ScreenSeqsCommand", "help");
-               exit(1);
-       }
-}
-
-//***************************************************************************************************************
-
-ScreenSeqsCommand::~ScreenSeqsCommand(){       /*      do nothing      */      }
-
 //***************************************************************************************************************
 
 int ScreenSeqsCommand::execute(){
        try{
                
-               if (abort == true) { return 0; }
-                               
-               ifstream inFASTA;
-               openInputFile(fastafile, inFASTA);
-               
-               set<string> badSeqNames;
-               
-               string goodSeqFile = outputDir + getRootName(getSimpleName(fastafile)) + "good" + getExtension(fastafile);
-               string badSeqFile =  outputDir + getRootName(getSimpleName(fastafile)) + "bad" + getExtension(fastafile);
+               if (abort == true) { if (calledHelp) { return 0; }  return 2;   }
                
-               ofstream goodSeqOut;    openOutputFile(goodSeqFile, goodSeqOut);
-               ofstream badSeqOut;             openOutputFile(badSeqFile, badSeqOut);          
+               //if the user want to optimize we need to know the 90% mark
+               vector<unsigned long long> positions;
+               if (optimize.size() != 0) {  //get summary is paralellized so we need to divideFile, no need to do this step twice so I moved it here
+                       //use the namefile to optimize correctly
+                       if (namefile != "") { nameMap = m->readNames(namefile); }
+            else if (countfile != "") {
+                CountTable ct;
+                ct.readTable(countfile);
+                nameMap = ct.getNameMap();
+            }
+                       getSummary(positions); 
+               } 
+               else { 
+                       #if defined (__APPLE__) || (__MACH__) || (linux) || (__linux) || (__linux__) || (__unix__) || (__unix)
+                positions = m->divideFile(fastafile, processors);
+                for (int i = 0; i < (positions.size()-1); i++) { lines.push_back(linePair(positions[i], positions[(i+1)])); }
+                       #else 
+                if(processors == 1){ lines.push_back(linePair(0, 1000));  }
+                else {
+                    int numFastaSeqs = 0;
+                    positions = m->setFilePosFasta(fastafile, numFastaSeqs); 
+                    if (positions.size() < processors) { processors = positions.size(); }
+                
+                    //figure out how many sequences you have to process
+                    int numSeqsPerProcessor = numFastaSeqs / processors;
+                    for (int i = 0; i < processors; i++) {
+                        int startIndex =  i * numSeqsPerProcessor;
+                        if(i == (processors - 1)){     numSeqsPerProcessor = numFastaSeqs - i * numSeqsPerProcessor;   }
+                        lines.push_back(linePair(positions[startIndex], numSeqsPerProcessor));
+                    }
+                }
+                       #endif
+               }
+                                       
+               string goodSeqFile = outputDir + m->getRootName(m->getSimpleName(fastafile)) + getOutputFileNameTag("fasta", fastafile);
+               string badAccnosFile =  outputDir + m->getRootName(m->getSimpleName(fastafile)) + getOutputFileNameTag("accnos");
                
-               while(!inFASTA.eof()){
-                       Sequence currSeq(inFASTA);
-                       if (currSeq.getName() != "") {
-                               bool goodSeq = 1;               //      innocent until proven guilty
-                               if(goodSeq == 1 && startPos != -1 && startPos < currSeq.getStartPos())                  {       goodSeq = 0;    }
-                               if(goodSeq == 1 && endPos != -1 && endPos > currSeq.getEndPos())                                {       goodSeq = 0;    }
-                               if(goodSeq == 1 && maxAmbig != -1 && maxAmbig < currSeq.getAmbigBases())                {       goodSeq = 0;    }
-                               if(goodSeq == 1 && maxHomoP != -1 && maxHomoP < currSeq.getLongHomoPolymer())   {       goodSeq = 0;    }
-                               if(goodSeq == 1 && minLength != -1 && minLength > currSeq.getNumBases())                {       goodSeq = 0;    }
-                               if(goodSeq == 1 && maxLength != -1 && maxLength < currSeq.getNumBases())                {       goodSeq = 0;    }
+               int numFastaSeqs = 0;
+               set<string> badSeqNames;
+               int start = time(NULL);
+       
+#ifdef USE_MPI 
+                       int pid, numSeqsPerProcessor; 
+                       int tag = 2001;
+                       vector<unsigned long long> MPIPos;
+                       
+                       MPI_Status status; 
+                       MPI_Comm_rank(MPI_COMM_WORLD, &pid); //find out who we are
+                       MPI_Comm_size(MPI_COMM_WORLD, &processors); 
+       
+                       MPI_File inMPI;
+                       MPI_File outMPIGood;
+                       MPI_File outMPIBadAccnos;
+                       
+                       int outMode=MPI_MODE_CREATE|MPI_MODE_WRONLY; 
+                       int inMode=MPI_MODE_RDONLY; 
+                       
+                       char outGoodFilename[1024];
+                       strcpy(outGoodFilename, goodSeqFile.c_str());
+
+                       char outBadAccnosFilename[1024];
+                       strcpy(outBadAccnosFilename, badAccnosFile.c_str());
+
+                       char inFileName[1024];
+                       strcpy(inFileName, fastafile.c_str());
+                       
+                       MPI_File_open(MPI_COMM_WORLD, inFileName, inMode, MPI_INFO_NULL, &inMPI);  //comm, filename, mode, info, filepointer
+                       MPI_File_open(MPI_COMM_WORLD, outGoodFilename, outMode, MPI_INFO_NULL, &outMPIGood);
+                       MPI_File_open(MPI_COMM_WORLD, outBadAccnosFilename, outMode, MPI_INFO_NULL, &outMPIBadAccnos);
+                       
+                       if (m->control_pressed) { MPI_File_close(&inMPI);  MPI_File_close(&outMPIGood); MPI_File_close(&outMPIBadAccnos); return 0; }
+                       
+                       if (pid == 0) { //you are the root process 
                                
-                               if(goodSeq == 1){
-                                       currSeq.printSequence(goodSeqOut);      
+                               MPIPos = m->setFilePosFasta(fastafile, numFastaSeqs); //fills MPIPos, returns numSeqs
+                               
+                               //send file positions to all processes
+                               for(int i = 1; i < processors; i++) { 
+                                       MPI_Send(&numFastaSeqs, 1, MPI_INT, i, tag, MPI_COMM_WORLD);
+                                       MPI_Send(&MPIPos[0], (numFastaSeqs+1), MPI_LONG, i, tag, MPI_COMM_WORLD);
                                }
-                               else{
-                                       currSeq.printSequence(badSeqOut);       
-                                       badSeqNames.insert(currSeq.getName());
+                               
+                               //figure out how many sequences you have to align
+                               numSeqsPerProcessor = numFastaSeqs / processors;
+                               int startIndex =  pid * numSeqsPerProcessor;
+                               if(pid == (processors - 1)){    numSeqsPerProcessor = numFastaSeqs - pid * numSeqsPerProcessor;         }
+
+                               //align your part
+                               driverMPI(startIndex, numSeqsPerProcessor, inMPI, outMPIGood, outMPIBadAccnos, MPIPos, badSeqNames);
+
+                               if (m->control_pressed) { MPI_File_close(&inMPI);  MPI_File_close(&outMPIGood);  MPI_File_close(&outMPIBadAccnos);  return 0; }
+
+                               for (int i = 1; i < processors; i++) {
+                                       //get bad lists
+                                       int badSize;
+                                       MPI_Recv(&badSize, 1, MPI_INT, i, tag, MPI_COMM_WORLD, &status);
                                }
+                       }else{ //you are a child process
+                               MPI_Recv(&numFastaSeqs, 1, MPI_INT, 0, tag, MPI_COMM_WORLD, &status);
+                               MPIPos.resize(numFastaSeqs+1);
+                               MPI_Recv(&MPIPos[0], (numFastaSeqs+1), MPI_LONG, 0, tag, MPI_COMM_WORLD, &status);
+
+                               //figure out how many sequences you have to align
+                               numSeqsPerProcessor = numFastaSeqs / processors;
+                               int startIndex =  pid * numSeqsPerProcessor;
+                               if(pid == (processors - 1)){    numSeqsPerProcessor = numFastaSeqs - pid * numSeqsPerProcessor;         }
+
+                               //align your part
+                               driverMPI(startIndex, numSeqsPerProcessor, inMPI, outMPIGood, outMPIBadAccnos, MPIPos, badSeqNames);
+
+                               if (m->control_pressed) { MPI_File_close(&inMPI);  MPI_File_close(&outMPIGood);  MPI_File_close(&outMPIBadAccnos); return 0; }
+                               
+                               //send bad list 
+                               int badSize = badSeqNames.size();
+                               MPI_Send(&badSize, 1, MPI_INT, 0, tag, MPI_COMM_WORLD);
                        }
-                       gobble(inFASTA);
-               }       
-               if(namefile != "" && groupfile != "")   {       screenNameGroupFile(badSeqNames);       }       // this screens both names and groups
-               else if(namefile != "")                                 {       screenNameGroupFile(badSeqNames);       }
-               else if(groupfile != "")                                {       screenGroupFile(badSeqNames);           }       // this screens just the groups
+                       
+                       //close files 
+                       MPI_File_close(&inMPI);
+                       MPI_File_close(&outMPIGood);
+                       MPI_File_close(&outMPIBadAccnos);
+                       MPI_Barrier(MPI_COMM_WORLD); //make everyone wait - just in case
+                                       
+#else
+        if(processors == 1){ numFastaSeqs = driver(lines[0], goodSeqFile, badAccnosFile, fastafile, badSeqNames);      }       
+        else{ numFastaSeqs = createProcesses(goodSeqFile, badAccnosFile, fastafile, badSeqNames); }
+        
+        if (m->control_pressed) { m->mothurRemove(goodSeqFile); return 0; }
+#endif         
+
+               #ifdef USE_MPI
+                       MPI_Comm_rank(MPI_COMM_WORLD, &pid); 
+                                       
+                       if (pid == 0) { //only one process should fix files
+                       
+                               //read accnos file with all names in it, process 0 just has its names
+                               MPI_File inMPIAccnos;
+                               MPI_Offset size;
+                       
+                               char inFileName[1024];
+                               strcpy(inFileName, badAccnosFile.c_str());
+                       
+                               MPI_File_open(MPI_COMM_SELF, inFileName, inMode, MPI_INFO_NULL, &inMPIAccnos);  //comm, filename, mode, info, filepointer
+                               MPI_File_get_size(inMPIAccnos, &size);
+                       
+                               char* buffer = new char[size];
+                               MPI_File_read(inMPIAccnos, buffer, size, MPI_CHAR, &status);
+                       
+                               string tempBuf = buffer;
+                               if (tempBuf.length() > size) { tempBuf = tempBuf.substr(0, size);  }
+                               istringstream iss (tempBuf,istringstream::in);
+
+                               delete buffer;
+                               MPI_File_close(&inMPIAccnos);
+                               
+                               badSeqNames.clear();
+                               string tempName;
+                               while (!iss.eof()) {
+                                       iss >> tempName; m->gobble(iss);
+                                       badSeqNames.insert(tempName);
+                               }
+               #endif
+                                                                                                                                                                       
+               if(namefile != "" && groupfile != "")   {       
+                       screenNameGroupFile(badSeqNames);       
+                       if (m->control_pressed) {  m->mothurRemove(goodSeqFile); return 0; }
+               }else if(namefile != "")        {       
+                       screenNameGroupFile(badSeqNames);
+                       if (m->control_pressed) {  m->mothurRemove(goodSeqFile);  return 0; }   
+               }else if(groupfile != "")                               {       screenGroupFile(badSeqNames);           }       // this screens just the group
+               else if (countfile != "") {     screenCountFile(badSeqNames);           }
+            
+                
+               if (m->control_pressed) { m->mothurRemove(goodSeqFile);  return 0; }
+
                if(alignreport != "")                                   {       screenAlignReport(badSeqNames);         }
+               if(qualfile != "")                                              {       screenQual(badSeqNames);                        }
+               if(taxonomy != "")                                              {       screenTaxonomy(badSeqNames);            }
                
-               goodSeqOut.close();
-               badSeqOut.close();
-               inFASTA.close();
+               if (m->control_pressed) { m->mothurRemove(goodSeqFile);  return 0; }
                
+               #ifdef USE_MPI
+                       }
+               #endif
+
                m->mothurOutEndLine();
                m->mothurOut("Output File Names: "); m->mothurOutEndLine();
-               m->mothurOut(goodSeqFile); m->mothurOutEndLine();       
-               m->mothurOut(badSeqFile); m->mothurOutEndLine();        
+               m->mothurOut(goodSeqFile); m->mothurOutEndLine();       outputTypes["fasta"].push_back(goodSeqFile);
+               m->mothurOut(badAccnosFile); m->mothurOutEndLine();      outputTypes["accnos"].push_back(badAccnosFile);
+               for (int i = 0; i < outputNames.size(); i++) { m->mothurOut(outputNames[i]); m->mothurOutEndLine(); }
                m->mothurOutEndLine();
-
+               m->mothurOutEndLine();
+               
+               //set fasta file as new current fastafile
+               string current = "";
+               itTypes = outputTypes.find("fasta");
+               if (itTypes != outputTypes.end()) {
+                       if ((itTypes->second).size() != 0) { current = (itTypes->second)[0]; m->setFastaFile(current); }
+               }
+               
+               itTypes = outputTypes.find("name");
+               if (itTypes != outputTypes.end()) {
+                       if ((itTypes->second).size() != 0) { current = (itTypes->second)[0]; m->setNameFile(current); }
+               }
+               
+               itTypes = outputTypes.find("group");
+               if (itTypes != outputTypes.end()) {
+                       if ((itTypes->second).size() != 0) { current = (itTypes->second)[0]; m->setGroupFile(current); }
+               }
+               
+               itTypes = outputTypes.find("qfile");
+               if (itTypes != outputTypes.end()) {
+                       if ((itTypes->second).size() != 0) { current = (itTypes->second)[0]; m->setQualFile(current); }
+               }
                
+               itTypes = outputTypes.find("taxonomy");
+               if (itTypes != outputTypes.end()) {
+                       if ((itTypes->second).size() != 0) { current = (itTypes->second)[0]; m->setTaxonomyFile(current); }
+               }
+        
+        itTypes = outputTypes.find("count");
+               if (itTypes != outputTypes.end()) {
+                       if ((itTypes->second).size() != 0) { current = (itTypes->second)[0]; m->setCountTableFile(current); }
+               }
+
+               m->mothurOut("It took " + toString(time(NULL) - start) + " secs to screen " + toString(numFastaSeqs) + " sequences.");
+               m->mothurOutEndLine();
+
                return 0;
        }
        catch(exception& e) {
@@ -221,191 +572,958 @@ int ScreenSeqsCommand::execute(){
 
 //***************************************************************************************************************
 
-void ScreenSeqsCommand::screenNameGroupFile(set<string> badSeqNames){
+int ScreenSeqsCommand::screenNameGroupFile(set<string> badSeqNames){
+       try {
+               ifstream inputNames;
+               m->openInputFile(namefile, inputNames);
+               set<string> badSeqGroups;
+               string seqName, seqList, group;
+               set<string>::iterator it;
 
-       ifstream inputNames;
-       openInputFile(namefile, inputNames);
-       set<string> badSeqGroups;
-       string seqName, seqList, group;
-       set<string>::iterator it;
+               string goodNameFile = outputDir + m->getRootName(m->getSimpleName(namefile)) + getOutputFileNameTag("name", namefile);
+               outputNames.push_back(goodNameFile);  outputTypes["name"].push_back(goodNameFile);
+               
+               ofstream goodNameOut;   m->openOutputFile(goodNameFile, goodNameOut);
+               
+               while(!inputNames.eof()){
+                       if (m->control_pressed) { goodNameOut.close();  inputNames.close(); m->mothurRemove(goodNameFile);  return 0; }
 
-       string goodNameFile = outputDir + getRootName(getSimpleName(namefile)) + "good" + getExtension(namefile);
-       string badNameFile = outputDir + getRootName(getSimpleName(namefile)) + "bad" + getExtension(namefile);
-       
-       ofstream goodNameOut;   openOutputFile(goodNameFile, goodNameOut);
-       ofstream badNameOut;    openOutputFile(badNameFile, badNameOut);                
+                       inputNames >> seqName >> seqList;
+                       it = badSeqNames.find(seqName);
+                               
+                       if(it != badSeqNames.end()){
+                               badSeqNames.erase(it);
+                               
+                               if(namefile != ""){
+                                       int start = 0;
+                                       for(int i=0;i<seqList.length();i++){
+                                               if(seqList[i] == ','){
+                                                       badSeqGroups.insert(seqList.substr(start,i-start));
+                                                       start = i+1;
+                                               }                                       
+                                       }
+                                       badSeqGroups.insert(seqList.substr(start,seqList.length()-start));
+                               }
+                       }
+                       else{
+                               goodNameOut << seqName << '\t' << seqList << endl;
+                       }
+                       m->gobble(inputNames);
+               }
+               inputNames.close();
+               goodNameOut.close();
        
-       while(!inputNames.eof()){
-               inputNames >> seqName >> seqList;
-               it = badSeqNames.find(seqName);
-               
-               if(it != badSeqNames.end()){
-                       badSeqNames.erase(it);
-                       badNameOut << seqName << '\t' << seqList << endl;
-                       if(namefile != ""){
-                               int start = 0;
-                               for(int i=0;i<seqList.length();i++){
-                                       if(seqList[i] == ','){
-                                               badSeqGroups.insert(seqList.substr(start,i-start));
-                                               start = i+1;
-                                       }                                       
+               //we were unable to remove some of the bad sequences
+               if (badSeqNames.size() != 0) {
+                       for (it = badSeqNames.begin(); it != badSeqNames.end(); it++) {  
+                               m->mothurOut("Your namefile does not include the sequence " + *it + " please correct."); 
+                               m->mothurOutEndLine();
+                       }
+               }
+
+               if(groupfile != ""){
+                       
+                       ifstream inputGroups;
+                       m->openInputFile(groupfile, inputGroups);
+
+                       string goodGroupFile = outputDir + m->getRootName(m->getSimpleName(groupfile)) + getOutputFileNameTag("group", groupfile);
+                       outputNames.push_back(goodGroupFile);   outputTypes["group"].push_back(goodGroupFile);
+                       
+                       ofstream goodGroupOut;  m->openOutputFile(goodGroupFile, goodGroupOut);
+                       
+                       while(!inputGroups.eof()){
+                               if (m->control_pressed) { goodGroupOut.close(); inputGroups.close(); m->mothurRemove(goodNameFile);  m->mothurRemove(goodGroupFile); return 0; }
+
+                               inputGroups >> seqName >> group;
+                               
+                               it = badSeqGroups.find(seqName);
+                               
+                               if(it != badSeqGroups.end()){
+                                       badSeqGroups.erase(it);
                                }
-                               badSeqGroups.insert(seqList.substr(start,seqList.length()-start));
+                               else{
+                                       goodGroupOut << seqName << '\t' << group << endl;
+                               }
+                               m->gobble(inputGroups);
+                       }
+                       inputGroups.close();
+                       goodGroupOut.close();
+                       
+                       //we were unable to remove some of the bad sequences
+                       if (badSeqGroups.size() != 0) {
+                               for (it = badSeqGroups.begin(); it != badSeqGroups.end(); it++) {  
+                                       m->mothurOut("Your groupfile does not include the sequence " + *it + " please correct."); 
+                                       m->mothurOutEndLine();
+                               }
+                       }
+               }
+               
+               
+               return 0;
+       
+       }
+       catch(exception& e) {
+               m->errorOut(e, "ScreenSeqsCommand", "screenNameGroupFile");
+               exit(1);
+       }
+}
+//***************************************************************************************************************
+int ScreenSeqsCommand::getSummary(vector<unsigned long long>& positions){
+       try {
+               
+               vector<int> startPosition;
+               vector<int> endPosition;
+               vector<int> seqLength;
+               vector<int> ambigBases;
+               vector<int> longHomoPolymer;
+               
+        vector<unsigned long long> positions;
+#if defined (__APPLE__) || (__MACH__) || (linux) || (__linux) || (__linux__) || (__unix__) || (__unix)
+               positions = m->divideFile(fastafile, processors);
+               for (int i = 0; i < (positions.size()-1); i++) { lines.push_back(linePair(positions[i], positions[(i+1)])); }   
+#else
+               if(processors == 1){ lines.push_back(linePair(0, 1000));  }
+        else {
+            int numFastaSeqs = 0;
+            positions = m->setFilePosFasta(fastafile, numFastaSeqs); 
+            if (positions.size() < processors) { processors = positions.size(); }
+            
+            //figure out how many sequences you have to process
+            int numSeqsPerProcessor = numFastaSeqs / processors;
+            for (int i = 0; i < processors; i++) {
+                int startIndex =  i * numSeqsPerProcessor;
+                if(i == (processors - 1)){     numSeqsPerProcessor = numFastaSeqs - i * numSeqsPerProcessor;   }
+                lines.push_back(linePair(positions[startIndex], numSeqsPerProcessor));
+            }
+        }
+#endif
+               
+#ifdef USE_MPI
+               int pid;
+               MPI_Comm_rank(MPI_COMM_WORLD, &pid); 
+               
+               if (pid == 0) { 
+                       driverCreateSummary(startPosition, endPosition, seqLength, ambigBases, longHomoPolymer, fastafile, lines[0]);
+#else
+               int numSeqs = 0;
+               //#if defined (__APPLE__) || (__MACH__) || (linux) || (__linux) || (__linux__) || (__unix__) || (__unix)
+                       if(processors == 1){
+                               numSeqs = driverCreateSummary(startPosition, endPosition, seqLength, ambigBases, longHomoPolymer, fastafile, lines[0]);
+                       }else{
+                               numSeqs = createProcessesCreateSummary(startPosition, endPosition, seqLength, ambigBases, longHomoPolymer, fastafile); 
                        }
+                               
+                       if (m->control_pressed) {  return 0; }
+               //#else
+               //      numSeqs = driverCreateSummary(startPosition, endPosition, seqLength, ambigBases, longHomoPolymer, fastafile, lines[0]);
+               //      if (m->control_pressed) {  return 0; }
+               //#endif
+#endif
+               sort(startPosition.begin(), startPosition.end());
+               sort(endPosition.begin(), endPosition.end());
+               sort(seqLength.begin(), seqLength.end());
+               sort(ambigBases.begin(), ambigBases.end());
+               sort(longHomoPolymer.begin(), longHomoPolymer.end());
+               
+               //numSeqs is the number of unique seqs, startPosition.size() is the total number of seqs, we want to optimize using all seqs
+               int criteriaPercentile  = int(startPosition.size() * (criteria / (float) 100));
+               
+               for (int i = 0; i < optimize.size(); i++) {
+                       if (optimize[i] == "start") { startPos = startPosition[criteriaPercentile]; m->mothurOut("Optimizing start to " + toString(startPos) + "."); m->mothurOutEndLine(); }
+                       else if (optimize[i] == "end") { int endcriteriaPercentile = int(endPosition.size() * ((100 - criteria) / (float) 100));  endPos = endPosition[endcriteriaPercentile]; m->mothurOut("Optimizing end to " + toString(endPos) + "."); m->mothurOutEndLine();}
+                       else if (optimize[i] == "maxambig") { maxAmbig = ambigBases[criteriaPercentile]; m->mothurOut("Optimizing maxambig to " + toString(maxAmbig) + "."); m->mothurOutEndLine(); }
+                       else if (optimize[i] == "maxhomop") { maxHomoP = longHomoPolymer[criteriaPercentile]; m->mothurOut("Optimizing maxhomop to " + toString(maxHomoP) + "."); m->mothurOutEndLine(); }
+                       else if (optimize[i] == "minlength") { int mincriteriaPercentile = int(seqLength.size() * ((100 - criteria) / (float) 100)); minLength = seqLength[mincriteriaPercentile]; m->mothurOut("Optimizing minlength to " + toString(minLength) + "."); m->mothurOutEndLine(); }
+                       else if (optimize[i] == "maxlength") { maxLength = seqLength[criteriaPercentile]; m->mothurOut("Optimizing maxlength to " + toString(maxLength) + "."); m->mothurOutEndLine(); }
                }
-               else{
-                       goodNameOut << seqName << '\t' << seqList << endl;
+
+#ifdef USE_MPI
+               }
+               
+               MPI_Status status; 
+               MPI_Comm_rank(MPI_COMM_WORLD, &pid); 
+               MPI_Comm_size(MPI_COMM_WORLD, &processors); 
+                       
+               if (pid == 0) { 
+                       //send file positions to all processes
+                       for(int i = 1; i < processors; i++) { 
+                               MPI_Send(&startPos, 1, MPI_INT, i, 2001, MPI_COMM_WORLD);
+                               MPI_Send(&endPos, 1, MPI_INT, i, 2001, MPI_COMM_WORLD);
+                               MPI_Send(&maxAmbig, 1, MPI_INT, i, 2001, MPI_COMM_WORLD);
+                               MPI_Send(&maxHomoP, 1, MPI_INT, i, 2001, MPI_COMM_WORLD);
+                               MPI_Send(&minLength, 1, MPI_INT, i, 2001, MPI_COMM_WORLD);
+                               MPI_Send(&maxLength, 1, MPI_INT, i, 2001, MPI_COMM_WORLD);
+                       }
+               }else {
+                       MPI_Recv(&startPos, 1, MPI_INT, 0, 2001, MPI_COMM_WORLD, &status);
+                       MPI_Recv(&endPos, 1, MPI_INT, 0, 2001, MPI_COMM_WORLD, &status);
+                       MPI_Recv(&maxAmbig, 1, MPI_INT, 0, 2001, MPI_COMM_WORLD, &status);
+                       MPI_Recv(&maxHomoP, 1, MPI_INT, 0, 2001, MPI_COMM_WORLD, &status);
+                       MPI_Recv(&minLength, 1, MPI_INT, 0, 2001, MPI_COMM_WORLD, &status);
+                       MPI_Recv(&maxLength, 1, MPI_INT, 0, 2001, MPI_COMM_WORLD, &status);
                }
-               gobble(inputNames);
+               MPI_Barrier(MPI_COMM_WORLD); //make everyone wait - just in case
+#endif
+               return 0;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "ScreenSeqsCommand", "getSummary");
+               exit(1);
        }
-       inputNames.close();
-       goodNameOut.close();
-       badNameOut.close();
+}
+/**************************************************************************************/
+int ScreenSeqsCommand::driverCreateSummary(vector<int>& startPosition, vector<int>& endPosition, vector<int>& seqLength, vector<int>& ambigBases, vector<int>& longHomoPolymer, string filename, linePair filePos) {   
+       try {
+               
+               ifstream in;
+               m->openInputFile(filename, in);
+                               
+               in.seekg(filePos.start);
+
+               bool done = false;
+               int count = 0;
+       
+               while (!done) {
+                               
+                       if (m->control_pressed) { in.close(); return 1; }
+                                       
+                       Sequence current(in); m->gobble(in);
        
-       //we were unable to remove some of the bad sequences
-       if (badSeqNames.size() != 0) {
-               for (it = badSeqNames.begin(); it != badSeqNames.end(); it++) {  
-                       m->mothurOut("Your namefile does not include the sequence " + *it + " please correct."); 
-                       m->mothurOutEndLine();
+                       if (current.getName() != "") {
+                               int num = 1;
+                               if (namefile != "") {
+                                       //make sure this sequence is in the namefile, else error 
+                                       map<string, int>::iterator it = nameMap.find(current.getName());
+                                       
+                                       if (it == nameMap.end()) { m->mothurOut("[ERROR]: " + current.getName() + " is not in your namefile, please correct."); m->mothurOutEndLine(); m->control_pressed = true; }
+                                       else { num = it->second; }
+                               }
+                               
+                               //for each sequence this sequence represents
+                               for (int i = 0; i < num; i++) {
+                                       startPosition.push_back(current.getStartPos());
+                                       endPosition.push_back(current.getEndPos());
+                                       seqLength.push_back(current.getNumBases());
+                                       ambigBases.push_back(current.getAmbigBases());
+                                       longHomoPolymer.push_back(current.getLongHomoPolymer());
+                               }
+                               
+                               count++;
+                       }
+                       //if((count) % 100 == 0){       m->mothurOut("Optimizing sequence: " + toString(count)); m->mothurOutEndLine();         }
+                       #if defined (__APPLE__) || (__MACH__) || (linux) || (__linux) || (__linux__) || (__unix__) || (__unix)
+                               unsigned long long pos = in.tellg();
+                               if ((pos == -1) || (pos >= filePos.end)) { break; }
+                       #else
+                               if (in.eof()) { break; }
+                       #endif
+                       
                }
+               
+               in.close();
+               
+               return count;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "ScreenSeqsCommand", "driverCreateSummary");
+               exit(1);
        }
+}
+/**************************************************************************************************/
+int ScreenSeqsCommand::createProcessesCreateSummary(vector<int>& startPosition, vector<int>& endPosition, vector<int>& seqLength, vector<int>& ambigBases, vector<int>& longHomoPolymer, string filename) {
+       try {
+        
+        int process = 1;
+               int num = 0;
+               vector<int> processIDS;
 
-       if(groupfile != ""){
+#if defined (__APPLE__) || (__MACH__) || (linux) || (__linux) || (__linux__) || (__unix__) || (__unix)
+                               
+               //loop through and create all the processes you want
+               while (process != processors) {
+                       int pid = fork();
+                       
+                       if (pid > 0) {
+                               processIDS.push_back(pid);  //create map from line number to pid so you can append files in correct order later
+                               process++;
+                       }else if (pid == 0){
+                               num = driverCreateSummary(startPosition, endPosition, seqLength, ambigBases, longHomoPolymer, fastafile, lines[process]);
+                               
+                               //pass numSeqs to parent
+                               ofstream out;
+                               string tempFile = fastafile + toString(getpid()) + ".num.temp";
+                               m->openOutputFile(tempFile, out);
+                               
+                               out << num << endl;
+                               out << startPosition.size() << endl;
+                               for (int k = 0; k < startPosition.size(); k++)          {               out << startPosition[k] << '\t'; }  out << endl;
+                               for (int k = 0; k < endPosition.size(); k++)            {               out << endPosition[k] << '\t'; }  out << endl;
+                               for (int k = 0; k < seqLength.size(); k++)                      {               out << seqLength[k] << '\t'; }  out << endl;
+                               for (int k = 0; k < ambigBases.size(); k++)                     {               out << ambigBases[k] << '\t'; }  out << endl;
+                               for (int k = 0; k < longHomoPolymer.size(); k++)        {               out << longHomoPolymer[k] << '\t'; }  out << endl;
+                               
+                               out.close();
+                               
+                               exit(0);
+                       }else { 
+                               m->mothurOut("[ERROR]: unable to spawn the necessary processes."); m->mothurOutEndLine(); 
+                               for (int i = 0; i < processIDS.size(); i++) { kill (processIDS[i], SIGINT); }
+                               exit(0);
+                       }
+               }
                
-               ifstream inputGroups;
-               openInputFile(groupfile, inputGroups);
+               num = driverCreateSummary(startPosition, endPosition, seqLength, ambigBases, longHomoPolymer, fastafile, lines[0]);
+               
+               //force parent to wait until all the processes are done
+               for (int i=0;i<processIDS.size();i++) { 
+                       int temp = processIDS[i];
+                       wait(&temp);
+               }
+               
+               //parent reads in and combine Filter info
+               for (int i = 0; i < processIDS.size(); i++) {
+                       string tempFilename = fastafile + toString(processIDS[i]) + ".num.temp";
+                       ifstream in;
+                       m->openInputFile(tempFilename, in);
+                       
+                       int temp, tempNum;
+                       in >> tempNum; m->gobble(in); num += tempNum;
+                       in >> tempNum; m->gobble(in);
+                       for (int k = 0; k < tempNum; k++)                       {               in >> temp; startPosition.push_back(temp);              }               m->gobble(in);
+                       for (int k = 0; k < tempNum; k++)                       {               in >> temp; endPosition.push_back(temp);                }               m->gobble(in);
+                       for (int k = 0; k < tempNum; k++)                       {               in >> temp; seqLength.push_back(temp);                  }               m->gobble(in);
+                       for (int k = 0; k < tempNum; k++)                       {               in >> temp; ambigBases.push_back(temp);                 }               m->gobble(in);
+                       for (int k = 0; k < tempNum; k++)                       {               in >> temp; longHomoPolymer.push_back(temp);    }               m->gobble(in);
+                               
+                       in.close();
+                       m->mothurRemove(tempFilename);
+               }
+               
+               
+#else 
+        //////////////////////////////////////////////////////////////////////////////////////////////////////
+               //Windows version shared memory, so be careful when passing variables through the seqSumData struct. 
+               //Above fork() will clone, so memory is separate, but that's not the case with windows, 
+               //Taking advantage of shared memory to allow both threads to add info to vectors.
+               //////////////////////////////////////////////////////////////////////////////////////////////////////
+               
+               vector<sumData*> pDataArray; 
+               DWORD   dwThreadIdArray[processors-1];
+               HANDLE  hThreadArray[processors-1]; 
+               
+               //Create processor worker threads.
+               for( int i=0; i<processors-1; i++ ){
+            
+                       // Allocate memory for thread data.
+                       sumData* tempSum = new sumData(filename, m, lines[i].start, lines[i].end, namefile, nameMap);
+                       pDataArray.push_back(tempSum);
+                       
+                       //MySeqSumThreadFunction is in header. It must be global or static to work with the threads.
+                       //default security attributes, thread function name, argument to thread function, use default creation flags, returns the thread identifier
+                       hThreadArray[i] = CreateThread(NULL, 0, MySumThreadFunction, pDataArray[i], 0, &dwThreadIdArray[i]);   
+               }
+               
+        //do your part
+               num = driverCreateSummary(startPosition, endPosition, seqLength, ambigBases, longHomoPolymer, fastafile, lines[processors-1]);
+         
+               //Wait until all threads have terminated.
+               WaitForMultipleObjects(processors-1, hThreadArray, TRUE, INFINITE);
+               
+               //Close all thread handles and free memory allocations.
+               for(int i=0; i < pDataArray.size(); i++){
+                       num += pDataArray[i]->count;
+            for (int k = 0; k < pDataArray[i]->startPosition.size(); k++) {    startPosition.push_back(pDataArray[i]->startPosition[k]);       }
+                       for (int k = 0; k < pDataArray[i]->endPosition.size(); k++) {   endPosition.push_back(pDataArray[i]->endPosition[k]);       }
+            for (int k = 0; k < pDataArray[i]->seqLength.size(); k++) {        seqLength.push_back(pDataArray[i]->seqLength[k]);       }
+            for (int k = 0; k < pDataArray[i]->ambigBases.size(); k++) {       ambigBases.push_back(pDataArray[i]->ambigBases[k]);       }
+            for (int k = 0; k < pDataArray[i]->longHomoPolymer.size(); k++) {  longHomoPolymer.push_back(pDataArray[i]->longHomoPolymer[k]);       }
+                       CloseHandle(hThreadArray[i]);
+                       delete pDataArray[i];
+               }
 
-               string goodGroupFile = outputDir + getRootName(getSimpleName(groupfile)) + "good" + getExtension(groupfile);
-               string badGroupFile = outputDir + getRootName(getSimpleName(groupfile)) + "bad" + getExtension(groupfile);
+#endif         
+        return num;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "ScreenSeqsCommand", "createProcessesCreateSummary");
+               exit(1);
+       }
+}
+
+//***************************************************************************************************************
+
+int ScreenSeqsCommand::screenGroupFile(set<string> badSeqNames){
+       try {
+               ifstream inputGroups;
+               m->openInputFile(groupfile, inputGroups);
+               string seqName, group;
+               set<string>::iterator it;
                
-               ofstream goodGroupOut;  openOutputFile(goodGroupFile, goodGroupOut);
-               ofstream badGroupOut;   openOutputFile(badGroupFile, badGroupOut);              
+               string goodGroupFile = outputDir + m->getRootName(m->getSimpleName(groupfile)) + getOutputFileNameTag("group", groupfile);
+        outputNames.push_back(goodGroupFile);  outputTypes["group"].push_back(goodGroupFile);
+               ofstream goodGroupOut;  m->openOutputFile(goodGroupFile, goodGroupOut);
                
                while(!inputGroups.eof()){
-                       inputGroups >> seqName >> group;
+                       if (m->control_pressed) { goodGroupOut.close(); inputGroups.close(); m->mothurRemove(goodGroupFile); return 0; }
 
-                       it = badSeqGroups.find(seqName);
+                       inputGroups >> seqName >> group;
+                       it = badSeqNames.find(seqName);
                        
-                       if(it != badSeqGroups.end()){
-                               badSeqGroups.erase(it);
-                               badGroupOut << seqName << '\t' << group << endl;
+                       if(it != badSeqNames.end()){
+                               badSeqNames.erase(it);
                        }
                        else{
                                goodGroupOut << seqName << '\t' << group << endl;
                        }
-                       gobble(inputGroups);
+                       m->gobble(inputGroups);
+               }
+               
+               if (m->control_pressed) { goodGroupOut.close();  inputGroups.close(); m->mothurRemove(goodGroupFile);  return 0; }
+
+               //we were unable to remove some of the bad sequences
+               if (badSeqNames.size() != 0) {
+                       for (it = badSeqNames.begin(); it != badSeqNames.end(); it++) {  
+                               m->mothurOut("Your groupfile does not include the sequence " + *it + " please correct."); 
+                               m->mothurOutEndLine();
+                       }
                }
+               
                inputGroups.close();
                goodGroupOut.close();
-               badGroupOut.close();
                
+               if (m->control_pressed) { m->mothurRemove(goodGroupFile);   }
+               
+               return 0;
+       
+       }
+       catch(exception& e) {
+               m->errorOut(e, "ScreenSeqsCommand", "screenGroupFile");
+               exit(1);
+       }
+}
+//***************************************************************************************************************
+int ScreenSeqsCommand::screenCountFile(set<string> badSeqNames){
+       try {
+               ifstream in;
+               m->openInputFile(countfile, in);
+               set<string>::iterator it;
+               
+               string goodCountFile = outputDir + m->getRootName(m->getSimpleName(countfile)) + getOutputFileNameTag("count", countfile);
+        outputNames.push_back(goodCountFile);  outputTypes["count"].push_back(goodCountFile);
+               ofstream goodCountOut;  m->openOutputFile(goodCountFile, goodCountOut);
+               
+        string headers = m->getline(in); m->gobble(in);
+        goodCountOut << headers << endl;
+        
+        string name, rest; int thisTotal;
+        while (!in.eof()) {
+
+                       if (m->control_pressed) { goodCountOut.close(); in.close(); m->mothurRemove(goodCountFile); return 0; }
+            
+                       in >> name; m->gobble(in); 
+            in >> thisTotal; m->gobble(in);
+            rest = m->getline(in); m->gobble(in);
+            
+                       it = badSeqNames.find(name);
+                       
+                       if(it != badSeqNames.end()){
+                               badSeqNames.erase(it);
+                       }
+                       else{
+                               goodCountOut << name << '\t' << thisTotal << '\t' << rest << endl;
+                       }
+               }
+               
+               if (m->control_pressed) { goodCountOut.close();  in.close(); m->mothurRemove(goodCountFile);  return 0; }
+        
                //we were unable to remove some of the bad sequences
-               if (badSeqGroups.size() != 0) {
-                       for (it = badSeqGroups.begin(); it != badSeqGroups.end(); it++) {  
-                               m->mothurOut("Your namefile does not include the sequence " + *it + " please correct."); 
+               if (badSeqNames.size() != 0) {
+                       for (it = badSeqNames.begin(); it != badSeqNames.end(); it++) {  
+                               m->mothurOut("Your count file does not include the sequence " + *it + " please correct."); 
                                m->mothurOutEndLine();
                        }
                }
+               
+               in.close();
+               goodCountOut.close();
+        
+        //check for groups that have been eliminated
+        CountTable ct;
+        if (ct.testGroups(goodCountFile)) {
+            ct.readTable(goodCountFile);
+            ct.printTable(goodCountFile);
+        }
+               
+               if (m->control_pressed) { m->mothurRemove(goodCountFile);   }
+               
+               return 0;
+        
+       }
+       catch(exception& e) {
+               m->errorOut(e, "ScreenSeqsCommand", "screenCountFile");
+               exit(1);
        }
 }
-
 //***************************************************************************************************************
 
-void ScreenSeqsCommand::screenGroupFile(set<string> badSeqNames){
+int ScreenSeqsCommand::screenAlignReport(set<string> badSeqNames){
+       try {
+               ifstream inputAlignReport;
+               m->openInputFile(alignreport, inputAlignReport);
+               string seqName, group;
+               set<string>::iterator it;
+               
+               string goodAlignReportFile = outputDir + m->getRootName(m->getSimpleName(alignreport)) + getOutputFileNameTag("alignreport");
+               outputNames.push_back(goodAlignReportFile);  outputTypes["alignreport"].push_back(goodAlignReportFile);
+               ofstream goodAlignReportOut;    m->openOutputFile(goodAlignReportFile, goodAlignReportOut);
 
-       ifstream inputGroups;
-       openInputFile(groupfile, inputGroups);
-       string seqName, group;
-       set<string>::iterator it;
-       
-       string goodGroupFile = outputDir + getRootName(getSimpleName(groupfile)) + "good" + getExtension(groupfile);
-       string badGroupFile = outputDir + getRootName(getSimpleName(groupfile)) + "bad" + getExtension(groupfile);
+               while (!inputAlignReport.eof()) {               //      need to copy header
+                       char c = inputAlignReport.get();
+                       goodAlignReportOut << c;
+                       if (c == 10 || c == 13){        break;  }       
+               }
+
+               while(!inputAlignReport.eof()){
+                       if (m->control_pressed) { goodAlignReportOut.close(); inputAlignReport.close(); m->mothurRemove(goodAlignReportFile); return 0; }
+
+                       inputAlignReport >> seqName;
+                       it = badSeqNames.find(seqName);
+                       string line;            
+                       while (!inputAlignReport.eof()) {               //      need to copy header
+                               char c = inputAlignReport.get();
+                               line += c;
+                               if (c == 10 || c == 13){        break;  }       
+                       }
+                       
+                       if(it != badSeqNames.end()){
+                               badSeqNames.erase(it);
+                       }
+                       else{
+                               goodAlignReportOut << seqName << '\t' << line;
+                       }
+                       m->gobble(inputAlignReport);
+               }
+               
+               if (m->control_pressed) { goodAlignReportOut.close();  inputAlignReport.close(); m->mothurRemove(goodAlignReportFile);  return 0; }
+
+               //we were unable to remove some of the bad sequences
+               if (badSeqNames.size() != 0) {
+                       for (it = badSeqNames.begin(); it != badSeqNames.end(); it++) {  
+                               m->mothurOut("Your alignreport file does not include the sequence " + *it + " please correct."); 
+                               m->mothurOutEndLine();
+                       }
+               }
+
+               inputAlignReport.close();
+               goodAlignReportOut.close();
+                               
+               if (m->control_pressed) {  m->mothurRemove(goodAlignReportFile);  return 0; }
+               
+               return 0;
        
-       ofstream goodGroupOut;  openOutputFile(goodGroupFile, goodGroupOut);
-       ofstream badGroupOut;   openOutputFile(badGroupFile, badGroupOut);              
+       }
+       catch(exception& e) {
+               m->errorOut(e, "ScreenSeqsCommand", "screenAlignReport");
+               exit(1);
+       }
        
-       while(!inputGroups.eof()){
-               inputGroups >> seqName >> group;
-               it = badSeqNames.find(seqName);
+}
+//***************************************************************************************************************
+
+int ScreenSeqsCommand::screenTaxonomy(set<string> badSeqNames){
+       try {
+               ifstream input;
+               m->openInputFile(taxonomy, input);
+               string seqName, tax;
+               set<string>::iterator it;
                
-               if(it != badSeqNames.end()){
-                       badSeqNames.erase(it);
-                       badGroupOut << seqName << '\t' << group << endl;
+               string goodTaxFile = outputDir + m->getRootName(m->getSimpleName(taxonomy)) + getOutputFileNameTag("taxonomy", taxonomy);
+               outputNames.push_back(goodTaxFile);  outputTypes["taxonomy"].push_back(goodTaxFile);
+               ofstream goodTaxOut;    m->openOutputFile(goodTaxFile, goodTaxOut);
+                               
+               while(!input.eof()){
+                       if (m->control_pressed) { goodTaxOut.close(); input.close(); m->mothurRemove(goodTaxFile); return 0; }
+                       
+                       input >> seqName >> tax;
+                       it = badSeqNames.find(seqName);
+                       
+                       if(it != badSeqNames.end()){ badSeqNames.erase(it); }
+                       else{
+                               goodTaxOut << seqName << '\t' << tax << endl;
+                       }
+                       m->gobble(input);
                }
-               else{
-                       goodGroupOut << seqName << '\t' << group << endl;
+               
+               if (m->control_pressed) { goodTaxOut.close(); input.close(); m->mothurRemove(goodTaxFile); return 0; }
+               
+               //we were unable to remove some of the bad sequences
+               if (badSeqNames.size() != 0) {
+                       for (it = badSeqNames.begin(); it != badSeqNames.end(); it++) {  
+                               m->mothurOut("Your taxonomy file does not include the sequence " + *it + " please correct."); 
+                               m->mothurOutEndLine();
+                       }
                }
-               gobble(inputGroups);
+               
+               input.close();
+               goodTaxOut.close();
+               
+               if (m->control_pressed) {  m->mothurRemove(goodTaxFile);  return 0; }
+               
+               return 0;
+               
+       }
+       catch(exception& e) {
+               m->errorOut(e, "ScreenSeqsCommand", "screenTaxonomy");
+               exit(1);
        }
        
-       //we were unable to remove some of the bad sequences
-       if (badSeqNames.size() != 0) {
-               for (it = badSeqNames.begin(); it != badSeqNames.end(); it++) {  
-                       m->mothurOut("Your groupfile does not include the sequence " + *it + " please correct."); 
-                       m->mothurOutEndLine();
+}
+//***************************************************************************************************************
+
+int ScreenSeqsCommand::screenQual(set<string> badSeqNames){
+       try {
+               ifstream in;
+               m->openInputFile(qualfile, in);
+               set<string>::iterator it;
+               
+               string goodQualFile = outputDir + m->getRootName(m->getSimpleName(qualfile)) + getOutputFileNameTag("qfile", qualfile);
+               outputNames.push_back(goodQualFile);  outputTypes["qfile"].push_back(goodQualFile);
+               ofstream goodQual;      m->openOutputFile(goodQualFile, goodQual);
+               
+               while(!in.eof()){       
+                       
+                       if (m->control_pressed) { goodQual.close(); in.close(); m->mothurRemove(goodQualFile); return 0; }
+
+                       string saveName = "";
+                       string name = "";
+                       string scores = "";
+                       
+                       in >> name; 
+                       
+                       if (name.length() != 0) { 
+                               saveName = name.substr(1);
+                               while (!in.eof())       {       
+                                       char c = in.get(); 
+                                       if (c == 10 || c == 13){        break;  }
+                                       else { name += c; }     
+                               } 
+                               m->gobble(in);
+                       }
+                       
+                       while(in){
+                               char letter= in.get();
+                               if(letter == '>'){      in.putback(letter);     break;  }
+                               else{ scores += letter; }
+                       }
+                       
+                       m->gobble(in);
+                       
+                       it = badSeqNames.find(saveName);
+                       
+                       if(it != badSeqNames.end()){
+                               badSeqNames.erase(it);
+                       }else{                          
+                               goodQual << name << endl << scores;
+                       }
+                       
+                       m->gobble(in);
                }
+               
+               in.close();
+               goodQual.close();
+               
+               //we were unable to remove some of the bad sequences
+               if (badSeqNames.size() != 0) {
+                       for (it = badSeqNames.begin(); it != badSeqNames.end(); it++) {  
+                               m->mothurOut("Your qual file does not include the sequence " + *it + " please correct."); 
+                               m->mothurOutEndLine();
+                       }
+               }
+               
+               if (m->control_pressed) {  m->mothurRemove(goodQualFile);  return 0; }
+               
+               return 0;
+               
+       }
+       catch(exception& e) {
+               m->errorOut(e, "ScreenSeqsCommand", "screenQual");
+               exit(1);
        }
-       
-       inputGroups.close();
-       goodGroupOut.close();
-       badGroupOut.close();
        
 }
+//**********************************************************************************************************************
 
-//***************************************************************************************************************
+int ScreenSeqsCommand::driver(linePair filePos, string goodFName, string badAccnosFName, string filename, set<string>& badSeqNames){
+       try {
+               ofstream goodFile;
+               m->openOutputFile(goodFName, goodFile);
+               
+               ofstream badAccnosFile;
+               m->openOutputFile(badAccnosFName, badAccnosFile);
+               
+               ifstream inFASTA;
+               m->openInputFile(filename, inFASTA);
 
-void ScreenSeqsCommand::screenAlignReport(set<string> badSeqNames){
-       
-       ifstream inputAlignReport;
-       openInputFile(alignreport, inputAlignReport);
-       string seqName, group;
-       set<string>::iterator it;
-       
-       string goodAlignReportFile = outputDir + getRootName(getSimpleName(alignreport)) + "good" + getExtension(alignreport);
-       string badAlignReportFile = outputDir + getRootName(getSimpleName(alignreport)) + "bad" + getExtension(alignreport);
+               inFASTA.seekg(filePos.start);
+
+               bool done = false;
+               int count = 0;
        
-       ofstream goodAlignReportOut;    openOutputFile(goodAlignReportFile, goodAlignReportOut);
-       ofstream badAlignReportOut;             openOutputFile(badAlignReportFile, badAlignReportOut);          
+               while (!done) {
+               
+                       if (m->control_pressed) {  return 0; }
+                       
+                       Sequence currSeq(inFASTA); m->gobble(inFASTA);
+                       if (currSeq.getName() != "") {
+                               bool goodSeq = 1;               //      innocent until proven guilty
+                               if(goodSeq == 1 && startPos != -1 && startPos < currSeq.getStartPos())                  {       goodSeq = 0;    }
+                               if(goodSeq == 1 && endPos != -1 && endPos > currSeq.getEndPos())                                {       goodSeq = 0;    }
+                               if(goodSeq == 1 && maxAmbig != -1 && maxAmbig < currSeq.getAmbigBases())                {       goodSeq = 0;    }
+                               if(goodSeq == 1 && maxHomoP != -1 && maxHomoP < currSeq.getLongHomoPolymer())   {       goodSeq = 0;    }
+                               if(goodSeq == 1 && minLength != -1 && minLength > currSeq.getNumBases())                {       goodSeq = 0;    }
+                               if(goodSeq == 1 && maxLength != -1 && maxLength < currSeq.getNumBases())                {       goodSeq = 0;    }
+                               
+                               if(goodSeq == 1){
+                                       currSeq.printSequence(goodFile);        
+                               }
+                               else{
+                                       badAccnosFile << currSeq.getName() << endl;
+                                       badSeqNames.insert(currSeq.getName());
+                               }
+                       count++;
+                       }
+                       
+                       #if defined (__APPLE__) || (__MACH__) || (linux) || (__linux) || (__linux__) || (__unix__) || (__unix)
+                               unsigned long long pos = inFASTA.tellg();
+                               if ((pos == -1) || (pos >= filePos.end)) { break; }
+                       #else
+                               if (inFASTA.eof()) { break; }
+                       #endif
+                       
+                       //report progress
+                       if((count) % 100 == 0){ m->mothurOut("Processing sequence: " + toString(count)); m->mothurOutEndLine();         }
+               }
+               //report progress
+               if((count) % 100 != 0){ m->mothurOut("Processing sequence: " + toString(count)); m->mothurOutEndLine();         }
+               
+                       
+               goodFile.close();
+               inFASTA.close();
+               badAccnosFile.close();
+               
+               return count;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "ScreenSeqsCommand", "driver");
+               exit(1);
+       }
+}
+//**********************************************************************************************************************
+#ifdef USE_MPI
+int ScreenSeqsCommand::driverMPI(int start, int num, MPI_File& inMPI, MPI_File& goodFile, MPI_File& badAccnosFile, vector<unsigned long long>& MPIPos, set<string>& badSeqNames){
+       try {
+               string outputString = "";
+               MPI_Status statusGood; 
+               MPI_Status statusBadAccnos; 
+               MPI_Status status; 
+               int pid;
+               MPI_Comm_rank(MPI_COMM_WORLD, &pid); //find out who we are
+
+               for(int i=0;i<num;i++){
+               
+                       if (m->control_pressed) {  return 0; }
+                       
+                       //read next sequence
+                       int length = MPIPos[start+i+1] - MPIPos[start+i];
+
+                       char* buf4 = new char[length];
+
+                       MPI_File_read_at(inMPI, MPIPos[start+i], buf4, length, MPI_CHAR, &status);
+                       
+                       string tempBuf = buf4;  delete buf4;
+                       if (tempBuf.length() > length) { tempBuf = tempBuf.substr(0, length);  }
+                       istringstream iss (tempBuf,istringstream::in);
+                       
+                       Sequence currSeq(iss);                  
+                       
+                       //process seq
+                       if (currSeq.getName() != "") {
+                               bool goodSeq = 1;               //      innocent until proven guilty
+                               if(goodSeq == 1 && startPos != -1 && startPos < currSeq.getStartPos())                  {       goodSeq = 0;    }
+                               if(goodSeq == 1 && endPos != -1 && endPos > currSeq.getEndPos())                                {       goodSeq = 0;    }
+                               if(goodSeq == 1 && maxAmbig != -1 && maxAmbig < currSeq.getAmbigBases())                {       goodSeq = 0;    }
+                               if(goodSeq == 1 && maxHomoP != -1 && maxHomoP < currSeq.getLongHomoPolymer())   {       goodSeq = 0;    }
+                               if(goodSeq == 1 && minLength != -1 && minLength > currSeq.getNumBases())                {       goodSeq = 0;    }
+                               if(goodSeq == 1 && maxLength != -1 && maxLength < currSeq.getNumBases())                {       goodSeq = 0;    }
+                               
+                               if(goodSeq == 1){
+                                       outputString =  ">" + currSeq.getName() + "\n" + currSeq.getAligned() + "\n";
+                               
+                                       //print good seq
+                                       length = outputString.length();
+                                       char* buf2 = new char[length];
+                                       memcpy(buf2, outputString.c_str(), length);
+                                       
+                                       MPI_File_write_shared(goodFile, buf2, length, MPI_CHAR, &statusGood);
+                                       delete buf2;
+                               }
+                               else{
 
-       while (!inputAlignReport.eof()) {               //      need to copy header
-               char c = inputAlignReport.get();
-               goodAlignReportOut << c;
-               badAlignReportOut << c;
-               if (c == 10 || c == 13){        break;  }       
+                                       badSeqNames.insert(currSeq.getName());
+                                       
+                                       //write to bad accnos file
+                                       outputString = currSeq.getName() + "\n";
+                               
+                                       length = outputString.length();
+                                       char* buf3 = new char[length];
+                                       memcpy(buf3, outputString.c_str(), length);
+                                       
+                                       MPI_File_write_shared(badAccnosFile, buf3, length, MPI_CHAR, &statusBadAccnos);
+                                       delete buf3;
+                               }
+                       }
+                       
+                       //report progress
+                       if((i) % 100 == 0){     m->mothurOut("Processing sequence: " + toString(i)); m->mothurOutEndLine();             }
+               }
+                               
+               return 1;
        }
+       catch(exception& e) {
+               m->errorOut(e, "ScreenSeqsCommand", "driverMPI");
+               exit(1);
+       }
+}
+#endif
+/**************************************************************************************************/
 
-       while(!inputAlignReport.eof()){
-               inputAlignReport >> seqName;
-               it = badSeqNames.find(seqName);
-               string line;            
-               while (!inputAlignReport.eof()) {               //      need to copy header
-                       char c = inputAlignReport.get();
-                       line += c;
-                       if (c == 10 || c == 13){        break;  }       
+int ScreenSeqsCommand::createProcesses(string goodFileName, string badAccnos, string filename, set<string>& badSeqNames) {
+       try {
+        
+        vector<int> processIDS;   
+        int process = 1;
+               int num = 0;
+
+#if defined (__APPLE__) || (__MACH__) || (linux) || (__linux) || (__linux__) || (__unix__) || (__unix)
+                               
+               //loop through and create all the processes you want
+               while (process != processors) {
+                       int pid = fork();
+                       
+                       if (pid > 0) {
+                               processIDS.push_back(pid);  //create map from line number to pid so you can append files in correct order later
+                               process++;
+                       }else if (pid == 0){
+                               num = driver(lines[process], goodFileName + toString(getpid()) + ".temp", badAccnos + toString(getpid()) + ".temp", filename, badSeqNames);
+                               
+                               //pass numSeqs to parent
+                               ofstream out;
+                               string tempFile = filename + toString(getpid()) + ".num.temp";
+                               m->openOutputFile(tempFile, out);
+                               out << num << endl;
+                               out.close();
+                               
+                               exit(0);
+                       }else { 
+                               m->mothurOut("[ERROR]: unable to spawn the necessary processes."); m->mothurOutEndLine(); 
+                               for (int i = 0; i < processIDS.size(); i++) { kill (processIDS[i], SIGINT); }
+                               exit(0);
+                       }
                }
                
-               if(it != badSeqNames.end()){
-                       badSeqNames.erase(it);
-                       badAlignReportOut << seqName << '\t' << line;;
+        num = driver(lines[0], goodFileName, badAccnos, filename, badSeqNames);
+        
+               //force parent to wait until all the processes are done
+               for (int i=0;i<processIDS.size();i++) { 
+                       int temp = processIDS[i];
+                       wait(&temp);
                }
-               else{
-                       goodAlignReportOut << seqName << '\t' << line;
+               
+               for (int i = 0; i < processIDS.size(); i++) {
+                       ifstream in;
+                       string tempFile =  filename + toString(processIDS[i]) + ".num.temp";
+                       m->openInputFile(tempFile, in);
+                       if (!in.eof()) { int tempNum = 0; in >> tempNum; num += tempNum; }
+                       in.close(); m->mothurRemove(tempFile);
+            
+            m->appendFiles((goodFileName + toString(processIDS[i]) + ".temp"), goodFileName);
+            m->mothurRemove((goodFileName + toString(processIDS[i]) + ".temp"));
+                       
+            m->appendFiles((badAccnos + toString(processIDS[i]) + ".temp"), badAccnos);
+            m->mothurRemove((badAccnos + toString(processIDS[i]) + ".temp"));
                }
-               gobble(inputAlignReport);
-       }
-       
-       //we were unable to remove some of the bad sequences
-       if (badSeqNames.size() != 0) {
-               for (it = badSeqNames.begin(); it != badSeqNames.end(); it++) {  
-                       m->mothurOut("Your file does not include the sequence " + *it + " please correct."); 
-                       m->mothurOutEndLine();
+               
+        //read badSeqs in because root process doesnt know what other "bad" seqs the children found
+        ifstream inBad;
+        int ableToOpen = m->openInputFile(badAccnos, inBad, "no error");
+        
+        if (ableToOpen == 0) {
+            badSeqNames.clear();
+            string tempName;
+            while (!inBad.eof()) {
+                inBad >> tempName; m->gobble(inBad);
+                badSeqNames.insert(tempName);
+            }
+            inBad.close();
+        }
+#else
+        
+        //////////////////////////////////////////////////////////////////////////////////////////////////////
+               //Windows version shared memory, so be careful when passing variables through the sumScreenData struct. 
+               //Above fork() will clone, so memory is separate, but that's not the case with windows, 
+               //Taking advantage of shared memory to allow both threads to add info to badSeqNames.
+               //////////////////////////////////////////////////////////////////////////////////////////////////////
+               
+               vector<sumScreenData*> pDataArray; 
+               DWORD   dwThreadIdArray[processors-1];
+               HANDLE  hThreadArray[processors-1]; 
+               
+               //Create processor worker threads.
+               for( int i=0; i<processors-1; i++ ){
+            
+            string extension = "";
+            if (i!=0) {extension += toString(i) + ".temp"; processIDS.push_back(i); }
+            
+                       // Allocate memory for thread data.
+                       sumScreenData* tempSum = new sumScreenData(startPos, endPos, maxAmbig, maxHomoP, minLength, maxLength, filename, m, lines[i].start, lines[i].end,goodFileName+extension, badAccnos+extension);
+                       pDataArray.push_back(tempSum);
+                       
+                       //default security attributes, thread function name, argument to thread function, use default creation flags, returns the thread identifier
+                       hThreadArray[i] = CreateThread(NULL, 0, MySumScreenThreadFunction, pDataArray[i], 0, &dwThreadIdArray[i]);   
+               }
+               
+        //do your part
+        num = driver(lines[processors-1], (goodFileName+toString(processors-1)+".temp"), (badAccnos+toString(processors-1)+".temp"), filename, badSeqNames);
+        processIDS.push_back(processors-1);
+        
+               //Wait until all threads have terminated.
+               WaitForMultipleObjects(processors-1, hThreadArray, TRUE, INFINITE);
+               
+               //Close all thread handles and free memory allocations.
+               for(int i=0; i < pDataArray.size(); i++){
+                       num += pDataArray[i]->count;
+            for (set<string>::iterator it = pDataArray[i]->badSeqNames.begin(); it != pDataArray[i]->badSeqNames.end(); it++) {        badSeqNames.insert(*it);       }
+                       CloseHandle(hThreadArray[i]);
+                       delete pDataArray[i];
+               }
+        
+        for (int i = 0; i < processIDS.size(); i++) {
+            m->appendFiles((goodFileName + toString(processIDS[i]) + ".temp"), goodFileName);
+            m->mothurRemove((goodFileName + toString(processIDS[i]) + ".temp"));
+                       
+            m->appendFiles((badAccnos + toString(processIDS[i]) + ".temp"), badAccnos);
+            m->mothurRemove((badAccnos + toString(processIDS[i]) + ".temp"));
                }
-       }
 
-       inputAlignReport.close();
-       goodAlignReportOut.close();
-       badAlignReportOut.close();
-       
+#endif 
+        
+        return num;
+        
+       }
+       catch(exception& e) {
+               m->errorOut(e, "ScreenSeqsCommand", "createProcesses");
+               exit(1);
+       }
 }
 
 //***************************************************************************************************************