]> git.donarmstrong.com Git - mothur.git/blobdiff - filterseqscommand.cpp
modified mpi code to save ram by writing out every 10 seqs.
[mothur.git] / filterseqscommand.cpp
index 1363216ffe56267adf628c42fe9ede4065c8f626..fa1e93e7c475b9a58cec44ab42af2464a2632c3f 100644 (file)
  */
 
 #include "filterseqscommand.h"
+#include "sequence.hpp"
 
 /**************************************************************************************/
 
-FilterSeqsCommand::FilterSeqsCommand(string option){
+FilterSeqsCommand::FilterSeqsCommand(string option)  {
        try {
-               globaldata = GlobalData::getInstance();
                abort = false;
+               filterFileName = "";
                
                //allow user to run help
                if(option == "help") { help(); abort = true; }
                
                else {
                        //valid paramters for this command
-                       string Array[] =  {"fasta", "trump", "soft", "hard", "vertical"};
+                       string Array[] =  {"fasta", "trump", "soft", "hard", "vertical", "outputdir","inputdir", "processors"};
                        vector<string> myArray (Array, Array+(sizeof(Array)/sizeof(string)));
                        
-                       parser = new OptionParser();
-                       parser->parse(option, parameters);  delete parser;
+                       OptionParser parser(option);
+                       map<string,string> parameters = parser.getParameters();
+                       
+                       ValidParameters validParameter;
+                       map<string,string>::iterator it;
                        
-                       ValidParameters* validParameter = new ValidParameters();
-               
                        //check to make sure all parameters are valid for command
                        for (it = parameters.begin(); it != parameters.end(); it++) { 
-                               if (validParameter->isValidParameter(it->first, myArray, it->second) != true) {  abort = true;  }
+                               if (validParameter.isValidParameter(it->first, myArray, it->second) != true) {  abort = true;  }
+                       }
+                       
+                       //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 = "";          }
+                       else {
+                               string path;
+                               it = parameters.find("fasta");
+                               //user has given a template file
+                               if(it != parameters.end()){ 
+                                       path = 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;            }
+                               }
+                               
+                               it = parameters.find("hard");
+                               //user has given a template file
+                               if(it != parameters.end()){ 
+                                       path = hasPath(it->second);
+                                       //if the user has not given a path then, add inputdir. else leave path alone.
+                                       if (path == "") {       parameters["hard"] = inputDir + it->second;             }
+                               }
                        }
                        
                        //check for required parameters
-                       fastafile = validParameter->validFile(parameters, "fasta", true);
-                       if (fastafile == "not found") { cout << "fasta is a required parameter for the filter.seqs command." << endl; abort = true; }
-                       else if (fastafile == "not open") { abort = true; }     
+                       fasta = validParameter.validFile(parameters, "fasta", false);
+                       if (fasta == "not found") { m->mothurOut("fasta is a required parameter for the filter.seqs command."); m->mothurOutEndLine(); abort = true;  }
                        else { 
-                               globaldata->setFastaFile(fastafile);
+                               splitAtDash(fasta, fastafileNames);
+                               
+                               //go through files and make sure they are good, if not, then disregard them
+                               for (int i = 0; i < fastafileNames.size(); i++) {
+                                       if (inputDir != "") {
+                                               string path = hasPath(fastafileNames[i]);
+                                               //if the user has not given a path then, add inputdir. else leave path alone.
+                                               if (path == "") {       fastafileNames[i] = inputDir + fastafileNames[i];               }
+                                       }
+
+                                       int ableToOpen;
+                                       ifstream in;
+                                       ableToOpen = openInputFile(fastafileNames[i], in);
+                                       if (ableToOpen == 1) { 
+                                               m->mothurOut(fastafileNames[i] + " will be disregarded."); m->mothurOutEndLine(); 
+                                               //erase from file list
+                                               fastafileNames.erase(fastafileNames.begin()+i);
+                                               i--;
+                                       }else{  
+                                               string simpleName = getSimpleName(fastafileNames[i]);
+                                               filterFileName += simpleName.substr(0, simpleName.find_first_of('.'));
+                                       }
+                                       in.close();
+                               }
+                               
+                               //make sure there is at least one valid file left
+                               if (fastafileNames.size() == 0) { m->mothurOut("no valid files."); m->mothurOutEndLine(); abort = true; }
                        }
                        
+                       if (!abort) {
+                               //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(fastafileNames[0]); //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, "trump", false);                           if (temp == "not found") { temp = "."; }
+                       temp = validParameter.validFile(parameters, "trump", false);                    if (temp == "not found") { temp = "*"; }
                        trump = temp[0];
                        
-                       temp = validParameter->validFile(parameters, "soft", false);                            if (temp == "not found") { soft = 0; }
+                       temp = validParameter.validFile(parameters, "soft", false);                             if (temp == "not found") { soft = 0; }
                        else {  soft = (float)atoi(temp.c_str()) / 100.0;  }
                        
-                       hard = validParameter->validFile(parameters, "hard", true);                                     if (hard == "not found") { hard = ""; }
+                       temp = validParameter.validFile(parameters, "processors", false);       if (temp == "not found"){       temp = "1";                             }
+                       convert(temp, processors); 
+                       
+                       hard = validParameter.validFile(parameters, "hard", true);                              if (hard == "not found") { hard = ""; }
                        else if (hard == "not open") { abort = true; }  
                        
-                       vertical = validParameter->validFile(parameters, "vertical", false);            if (vertical == "not found") { vertical = "F"; }
-       
-                       delete validParameter;
+                       vertical = validParameter.validFile(parameters, "vertical", false);             if (vertical == "not found") { vertical = "T"; }
                        
                        numSeqs = 0;
                        
@@ -65,207 +122,477 @@ FilterSeqsCommand::FilterSeqsCommand(string option){
                
        }
        catch(exception& e) {
-               cout << "Standard Error: " << e.what() << " has occurred in the FilterSeqsCommand class Function FilterSeqsCommand. Please contact Pat Schloss at pschloss@microbio.umass.edu." << "\n";
+               m->errorOut(e, "FilterSeqsCommand", "FilterSeqsCommand");
                exit(1);
        }
-       catch(...) {
-               cout << "An unknown error has occurred in the FilterSeqsCommand class function FilterSeqsCommand. Please contact Pat Schloss at pschloss@microbio.umass.edu." << "\n";
-               exit(1);
-       }       
 }
 
 //**********************************************************************************************************************
 
 void FilterSeqsCommand::help(){
        try {
-               cout << "The filter.seqs command reads a file containing sequences and creates a .filter and .filter.fasta file." << "\n";
-               cout << "The filter.seqs command parameters are fasta, trump, soft, hard and vertical.  " << "\n";
-               cout << "The fasta parameter is required." << "\n";
-               cout << "The trump parameter .... The default is '.'" << "\n";
-               cout << "The soft parameter .... The default is ...." << "\n";
-               cout << "The hard parameter .... The default is ...." << "\n";
-               cout << "The vertical parameter .... The default is F." << "\n";
-               cout << "The filter.seqs command should be in the following format: " << "\n";
-               cout << "filter.seqs(fasta=yourFastaFile, trump=yourTrump, soft=yourSoft, hard=yourHard, vertical=yourVertical) " << "\n";
-               cout << "Example filter.seqs(fasta=abrecovery.fasta, trump=..., soft=..., hard=..., vertical=T)." << "\n";
-               cout << "Note: No spaces between parameter labels (i.e. fasta), '=' and parameters (i.e.yourFasta)." << "\n" << "\n";
+                               
+               m->mothurOut("The filter.seqs command reads a file containing sequences and creates a .filter and .filter.fasta file.\n");
+               m->mothurOut("The filter.seqs command parameters are fasta, trump, soft, hard and vertical. \n");
+               m->mothurOut("The fasta parameter is required. You may enter several fasta files to build the filter from and filter, by separating their names with -'s.\n");
+               m->mothurOut("For example: fasta=abrecovery.fasta-amazon.fasta \n");
+               m->mothurOut("The trump parameter .... The default is ...\n");
+               m->mothurOut("The soft parameter .... The default is ....\n");
+               m->mothurOut("The hard parameter .... The default is ....\n");
+               m->mothurOut("The vertical parameter .... The default is T.\n");
+               m->mothurOut("The filter.seqs command should be in the following format: \n");
+               m->mothurOut("filter.seqs(fasta=yourFastaFile, trump=yourTrump, soft=yourSoft, hard=yourHard, vertical=yourVertical) \n");
+               m->mothurOut("Example filter.seqs(fasta=abrecovery.fasta, trump=..., soft=..., hard=..., vertical=T).\n");
+               m->mothurOut("Note: No spaces between parameter labels (i.e. fasta), '=' and parameters (i.e.yourFasta).\n\n");
                
        }
        catch(exception& e) {
-               cout << "Standard Error: " << e.what() << " has occurred in the FilterSeqsCommand class Function help. Please contact Pat Schloss at pschloss@microbio.umass.edu." << "\n";
+               m->errorOut(e, "FilterSeqsCommand", "help");
                exit(1);
        }
-       catch(...) {
-               cout << "An unknown error has occurred in the FilterSeqsCommand class function help. Please contact Pat Schloss at pschloss@microbio.umass.edu." << "\n";
-               exit(1);
-       }       
 }
 
 /**************************************************************************************/
 
-void FilterSeqsCommand::doHard() {
-       
-       ifstream fileHandle;
-       openInputFile(hard, fileHandle);
+int FilterSeqsCommand::execute() {     
+       try {
        
-       fileHandle >> filter;
+               if (abort == true) { return 0; }
+               vector<string> outputNames;
+               
+               ifstream inFASTA;
+               openInputFile(fastafileNames[0], inFASTA);
+               
+               Sequence testSeq(inFASTA);
+               alignmentLength = testSeq.getAlignLength();
+               inFASTA.close();
+               
+               ////////////create filter/////////////////
+               
+               filter = createFilter();
+               
+               ofstream outFilter;
+               
+               string filterFile = outputDir + filterFileName + ".filter";
+               openOutputFile(filterFile, outFilter);
+               outFilter << filter << endl;
+               outFilter.close();
+               outputNames.push_back(filterFile);
+               
+               
+               ////////////run filter/////////////////
+               
+               numSeqs = 0;
+               for (int i = 0; i < fastafileNames.size(); i++) {
+                       ifstream in;
+                       openInputFile(fastafileNames[i], in);
+                       string filteredFasta = outputDir + getRootName(getSimpleName(fastafileNames[i])) + "filter.fasta";
+                       ofstream outFASTA;
+                       openOutputFile(filteredFasta, outFASTA);
+                       outputNames.push_back(filteredFasta);
+                       
+                       
+                       while(!in.eof()){
+                               if (m->control_pressed) { in.close(); outFASTA.close(); for(int i = 0; i < outputNames.size(); i++) { remove(outputNames[i].c_str()); }  return 0; }
+                               
+                               Sequence seq(in);
+                               if (seq.getName() != "") {
+                                       string align = seq.getAligned();
+                                       string filterSeq = "";
+                                       
+                                       for(int j=0;j<alignmentLength;j++){
+                                               if(filter[j] == '1'){
+                                                       filterSeq += align[j];
+                                               }
+                                       }
+                                       
+                                       outFASTA << '>' << seq.getName() << endl << filterSeq << endl;
+                                       numSeqs++;
+                               }
+                               gobble(in);
+                       }
+                       outFASTA.close();
+                       in.close();
+               }
+               
+               int filteredLength = 0;
+               for(int i=0;i<alignmentLength;i++){
+                       if(filter[i] == '1'){   filteredLength++;       }
+               }
+               
+               if (m->control_pressed) {  for(int i = 0; i < outputNames.size(); i++) { remove(outputNames[i].c_str()); }  return 0; }
 
+               
+               m->mothurOutEndLine();
+               m->mothurOut("Length of filtered alignment: " + toString(filteredLength)); m->mothurOutEndLine();
+               m->mothurOut("Number of columns removed: " + toString((alignmentLength-filteredLength))); m->mothurOutEndLine();
+               m->mothurOut("Length of the original alignment: " + toString(alignmentLength)); m->mothurOutEndLine();
+               m->mothurOut("Number of sequences used to construct filter: " + toString(numSeqs)); m->mothurOutEndLine();
+               
+               
+               m->mothurOutEndLine();
+               m->mothurOut("Output File Names: "); m->mothurOutEndLine();
+               for(int i = 0; i < outputNames.size(); i++) {  m->mothurOut(outputNames[i]); m->mothurOutEndLine();      }
+               m->mothurOutEndLine();
+               
+               return 0;
+               
+       }
+       catch(exception& e) {
+               m->errorOut(e, "FilterSeqsCommand", "execute");
+               exit(1);
+       }
 }
-
 /**************************************************************************************/
-
-void FilterSeqsCommand::doTrump(Sequence seq) {
-       
-       string curAligned = seq.getAligned();
-       
-       for(int j = 0; j < alignmentLength; j++) {
-               if(curAligned[j] == trump){
-                       filter[j] = '0';
+string FilterSeqsCommand::createFilter() {     
+       try {
+               string filterString = "";
+               
+               Filters F;
+               
+               if (soft != 0)                  {  F.setSoft(soft);             }
+               if (trump != '*')               {  F.setTrump(trump);   }
+               
+               F.setLength(alignmentLength);
+               
+               if(soft != 0 || isTrue(vertical)){
+                       F.initialize();
                }
-       }
+               
+               if(hard.compare("") != 0)       {       F.doHard(hard);         }
+               else                                            {       F.setFilter(string(alignmentLength, '1'));      }
+               
+               numSeqs = 0;
+               
+               if(trump != '*' || isTrue(vertical) || soft != 0){
+                       for (int s = 0; s < fastafileNames.size(); s++) {
+                       
+                               for (int i = 0; i < lines.size(); i++) {  delete lines[i];  }  lines.clear();
+                       
+#ifdef USE_MPI 
+                               int pid, rc, ierr; 
+                               int Atag = 1; int Ttag = 2; int Ctag = 3; int Gtag = 4; int Gaptag = 5;
+                               int tag = 2001;
+                               
+                               MPI_Status status; 
+                               MPI_File in; 
+                               rc = MPI_Comm_size(MPI_COMM_WORLD, &processors);
+                               rc = MPI_Comm_rank(MPI_COMM_WORLD, &pid); 
+                                               
+                                                       
+                               char* tempFileName = new char(fastafileNames[s].length());
+                               tempFileName = &(fastafileNames[s][0]);
+                               
+                               MPI_File_open(MPI_COMM_WORLD, tempFileName, MPI_MODE_RDONLY, MPI_INFO_NULL, &in);  //comm, filename, mode, info, filepointer
+                               
+                               if (pid == 0) { //you are the root process
+                                               setLines(fastafileNames[s]);
+                                               
+                                               for (int j = 0; j < lines.size(); j++) { //each process
+                                                       if (j != 0) { //don't send to yourself
+                                                               MPI_Send(&lines[j]->start, 1, MPI_INT, j, tag, MPI_COMM_WORLD); //start position in file
+                                                               MPI_Send(&lines[j]->numSeqs, 1, MPI_INT, j, tag, MPI_COMM_WORLD); //how many sequences we are sending
+                                                               MPI_Send(&bufferSizes[j], 1, MPI_INT, j, tag, MPI_COMM_WORLD); //how bytes for the read
+                                                       }
+                                               }
+                               
+                                               char buf[bufferSizes[0]];
+                                               MPI_File_read_at(in, 0, buf, bufferSizes[0], MPI_CHAR, &status);
+                       
+                                               MPICreateFilter(F, buf);
+                                                                                               
+                                               vector<int> temp; temp.resize(alignmentLength+1);
+                                               
+                                               //get the frequencies from the child processes
+                                               for(int i = 0; i < ((processors-1)*5); i++) { 
+                               cout << "i = " << i << endl;
+                               //vector<int> trial; trial.resize(10);
+                               //cout << "trials size = " << trial.size() << endl;
+                               //int ierr = MPI_Recv(&trial[0], 10, MPI_INT, MPI_ANY_SOURCE, tag, MPI_COMM_WORLD, &status);
+                                                       int ierr = MPI_Recv(&temp[0], (alignmentLength+1), MPI_INT, MPI_ANY_SOURCE, tag, MPI_COMM_WORLD, &status); 
+                                       cout << "recieved something" << endl;           
+                       //for (int g = 0; g < trial.size(); g++) {  cout << trial[g] << '\t';  } cout << endl;
+                                                       int receiveTag = temp[temp.size()-1];  //child process added a int to the end to indicate what letter count this is for
+                                       cout << "reciveve tag = " << receiveTag << endl;
+                                       for (int k = 0; k < alignmentLength; k++) {             cout << k << '\t' << temp[k] << endl;   }
+                                       cout << "done " << endl << endl;
+                                                       
+                                                       int sender = status.MPI_SOURCE; 
+                                                       
+                                                       if (receiveTag == Atag) { //you are recieveing the A frequencies
+                                                               for (int k = 0; k < alignmentLength; k++) {             F.a[k] += temp[k];      }
+                                                       }else if (receiveTag == Ttag) { //you are recieveing the T frequencies
+                                                               for (int k = 0; k < alignmentLength; k++) {             F.t[k] += temp[k];      }
+                                                       }else if (receiveTag == Ctag) { //you are recieveing the C frequencies
+                                                               for (int k = 0; k < alignmentLength; k++) {             F.c[k] += temp[k];      }
+                                                       }else if (receiveTag == Gtag) { //you are recieveing the G frequencies
+                                                               for (int k = 0; k < alignmentLength; k++) {             F.g[k] += temp[k];      }
+                                                       }else if (receiveTag == Gaptag) { //you are recieveing the gap frequencies
+                                                               for (int k = 0; k < alignmentLength; k++) {             F.gap[k] += temp[k];    }
+                                                       }
+                                                       
+                                                       m->mothurOut("receive tag = " + toString(receiveTag) + " " + toString(sender) + " is complete."); m->mothurOutEndLine();
+                                               } 
 
-}
+                                               
+                               }else { //i am the child process
+                                       int startPos, numLines, bufferSize;
+                                       ierr = MPI_Recv(&startPos, 1, MPI_INT, 0, tag, MPI_COMM_WORLD, &status);
+                                       ierr = MPI_Recv(&numLines, 1, MPI_INT, 0, tag, MPI_COMM_WORLD, &status);
+                                       ierr = MPI_Recv(&bufferSize, 1, MPI_INT, 0, tag, MPI_COMM_WORLD, &status);
+                                                                       
+                                       //send freqs
+                                       char buf2[bufferSize];
+                                       MPI_File_read_at( in, startPos, buf2, bufferSize, MPI_CHAR, &status);
+                                               
+                                       MPICreateFilter(F, buf2);
+                                       
+                                       //send my fequency counts
+                                       F.a.push_back(Atag);
+                                       int ierr = MPI_Send(&(F.a[0]), (alignmentLength+1), MPI_INT, 0, tag, MPI_COMM_WORLD);
+                                       F.t.push_back(Ttag);
+                                       ierr = MPI_Send (&(F.t[0]), (alignmentLength+1), MPI_INT, 0, tag, MPI_COMM_WORLD);
+                                       F.c.push_back(Ctag);
+                                       ierr = MPI_Send(&(F.c[0]), (alignmentLength+1), MPI_INT, 0, tag, MPI_COMM_WORLD);
+                                       F.g.push_back(Gtag);
+                                       ierr = MPI_Send(&(F.g[0]), (alignmentLength+1), MPI_INT, 0, tag, MPI_COMM_WORLD);
+                                       F.gap.push_back(Gaptag);
+                                       ierr = MPI_Send(&(F.gap[0]), (alignmentLength+1), MPI_INT, 0, tag, MPI_COMM_WORLD);
+                               }
+                               
+                               MPI_Barrier(MPI_COMM_WORLD);
+                               
+#else
+               #if defined (__APPLE__) || (__MACH__) || (linux) || (__linux)
+                               if(processors == 1){
+                                       ifstream inFASTA;
+                                       openInputFile(fastafileNames[s], inFASTA);
+                                       int numFastaSeqs=count(istreambuf_iterator<char>(inFASTA),istreambuf_iterator<char>(), '>');
+                                       inFASTA.close();
+                                       
+                                       numSeqs += numFastaSeqs;
+                                       
+                                       lines.push_back(new linePair(0, numFastaSeqs));
+                                       
+                                       driverCreateFilter(F, fastafileNames[s], lines[0]);
+                               }else{
+                                       
+                                       setLines(fastafileNames[s]);                                    
+                                       createProcessesCreateFilter(F, fastafileNames[s]); 
+                               }
+               #else
+                               ifstream inFASTA;
+                               openInputFile(fastafileNames[s], inFASTA);
+                               int numFastaSeqs=count(istreambuf_iterator<char>(inFASTA),istreambuf_iterator<char>(), '>');
+                               inFASTA.close();
+                               
+                               numSeqs += numFastaSeqs;
+                               
+                               lines.push_back(new linePair(0, numFastaSeqs));
+                               
+                               driverCreateFilter(F, lines[0], fastafileNames[s]);
+               #endif
+#endif
+                       
+                       }
+               }
 
-/**************************************************************************************/
 
-void FilterSeqsCommand::doVertical() {
+       cout << "made it here, numSeqs = " << numSeqs << endl;  
+               F.setNumSeqs(numSeqs);
+                               
+               if(isTrue(vertical) == 1)       {       F.doVertical(); }
+               if(soft != 0)                           {       F.doSoft();             }
+//cout << "Filter String = " << F.getFilter() << endl;                 
+               filterString = F.getFilter();
 
-       for(int i=0;i<alignmentLength;i++){
-               if(gap[i] == numSeqs)   {       filter[i] = '0';        }
+               return filterString;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "FilterSeqsCommand", "createFilter");
+               exit(1);
        }
-       
 }
-
 /**************************************************************************************/
-
-void FilterSeqsCommand::doSoft() {
-       
-       int threshold = int (soft * numSeqs);
-       bool keep = 0;
-       
-       for(int i=0;i<alignmentLength;i++){
-               if(a[i] >= threshold)           {       keep = 1;       }
-               else if(t[i] >= threshold)      {       keep = 1;       }
-               else if(g[i] >= threshold)      {       keep = 1;       }
-               else if(c[i] >= threshold)      {       keep = 1;       }
+int FilterSeqsCommand::driverCreateFilter(Filters& F, string filename, linePair* line) {       
+       try {
+               
+               ifstream in;
+               openInputFile(filename, in);
+                               
+               in.seekg(line->start);
+               
+               for(int i=0;i<line->numSeqs;i++){
+                               
+                       if (m->control_pressed) { in.close(); return 1; }
+                                       
+                       Sequence seq(in);
+                       if (seq.getName() != "") {
+                                       if(trump != '*'){       F.doTrump(seq); }
+                                       if(isTrue(vertical) || soft != 0){      F.getFreqs(seq);        }
+                                       cout.flush();
+                       }
+                       
+                       //report progress
+                       if((i+1) % 100 == 0){   m->mothurOut(toString(i+1)); m->mothurOutEndLine();             }
+               }
+               
+               //report progress
+               if((line->numSeqs) % 100 != 0){ m->mothurOut(toString(line->numSeqs)); m->mothurOutEndLine();           }
+               
+               in.close();
                
-               if(keep == 0)   {       filter[i] = 0;          }
+               return 0;
        }
-}
-
-/**************************************************************************************/
-
-void FilterSeqsCommand::getFreqs(Sequence seq) {
-
-       string curAligned = seq.getAligned();;
-       
-       for(int j=0;j<alignmentLength;j++){
-               if(toupper(curAligned[j]) == 'A')                                                                               {       a[j]++;         }
-               else if(toupper(curAligned[j]) == 'T' || toupper(curAligned[j]) == 'U') {       t[j]++;         }
-               else if(toupper(curAligned[j]) == 'G')                                                                  {       g[j]++;         }
-               else if(toupper(curAligned[j]) == 'C')                                                                  {       c[j]++;         }
-               else if(curAligned[j] == '-' || curAligned[j] == '.')                                   {       gap[j]++;       }
+       catch(exception& e) {
+               m->errorOut(e, "FilterSeqsCommand", "driverCreateFilter");
+               exit(1);
        }
-       
 }
-
 /**************************************************************************************/
-
-int FilterSeqsCommand::execute() {     
+int FilterSeqsCommand::MPICreateFilter(Filters& F, string input) {     
        try {
-       
-               if (abort == true) { return 0; }
                
-               ifstream inFASTA;
-               openInputFile(fastafile, inFASTA);
+               vector<string> seqStrings;
+               parseBuffer(input, seqStrings);
                
-               Sequence testSeq(inFASTA);
-               alignmentLength = testSeq.getAlignLength();
-               inFASTA.seekg(0);
-               
-               if(soft != 0 || isTrue(vertical)){
-                       a.assign(alignmentLength, 0);
-                       t.assign(alignmentLength, 0);
-                       g.assign(alignmentLength, 0);
-                       c.assign(alignmentLength, 0);
-                       gap.assign(alignmentLength, 0);
+               for(int i=0;i<seqStrings.size();i++){
+                               
+                       if (m->control_pressed) { return 1; }
+                       
+                       Sequence seq("", seqStrings[i]);
+                       
+                       if(trump != '*'){       F.doTrump(seq); }
+                       if(isTrue(vertical) || soft != 0){      F.getFreqs(seq);        }
+                       cout.flush();
+                                               
+                       //report progress
+                       if((i+1) % 100 == 0){   m->mothurOut(toString(i+1)); m->mothurOutEndLine();             }
                }
                
-               if(hard.compare("") != 0)       {       doHard();               }
-               else                                            {       filter = string(alignmentLength, '1');  }
+               //report progress
+               if((seqStrings.size()) % 100 != 0){     m->mothurOut(toString(seqStrings.size())); m->mothurOutEndLine();               }
+               
+               return 0;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "FilterSeqsCommand", "MPICreateFilter");
+               exit(1);
+       }
+}
 
-               if(isTrue(vertical) || soft != 0){
-               
-                       while(!inFASTA.eof()){
-                               Sequence seq(inFASTA);
-                               doTrump(seq);   
-                               if(isTrue(vertical) || soft != 0){      getFreqs(seq);  }
-                               numSeqs++;
-                               cout.flush();
-                       }
+/**************************************************************************************************/
+
+int FilterSeqsCommand::createProcessesCreateFilter(Filters& F, string filename) {
+       try {
+#if defined (__APPLE__) || (__MACH__) || (linux) || (__linux)
+               int process = 0;
+               int exitCommand = 1;
+               vector<int> processIDS;
                
+               //loop through and create all the processes you want
+               while (process != processors) {
+                       int pid = vfork();
+                       
+                       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){
+                               driverCreateFilter(F, filename, lines[process]);
+                               exit(0);
+                       }else { m->mothurOut("unable to spawn the necessary processes."); m->mothurOutEndLine(); exit(0); }
                }
-               inFASTA.close();
                
-               if(isTrue(vertical) == 1)       {       doVertical();   }
-               if(soft != 0)   {       doSoft();               }                       
-
-               ofstream outFilter;
-               string filterFile = getRootName(fastafile) + "filter";
-               openOutputFile(filterFile, outFilter);
-               outFilter << filter << endl;
-               outFilter.close();
+               //force parent to wait until all the processes are done
+               for (int i=0;i<processors;i++) { 
+                       int temp = processIDS[i];
+                       wait(&temp);
+               }
                
+               return exitCommand;
+#endif         
+       }
+       catch(exception& e) {
+               m->errorOut(e, "FilterSeqsCommand", "createProcessesCreateFilter");
+               exit(1);
+       }
+}
+/**************************************************************************************************/
 
-               openInputFile(fastafile, inFASTA);
-               string filteredFasta = getRootName(fastafile) + "filter.fasta";
-               ofstream outFASTA;
-               openOutputFile(filteredFasta, outFASTA);
-
-               numSeqs = 0;
-               while(!inFASTA.eof()){
-                       Sequence seq(inFASTA);
-                       string align = seq.getAligned();
-                       string filterSeq = "";
+int FilterSeqsCommand::setLines(string filename) {
+       try {
+               vector<int> positions;
+               map<int, int> buf;
+               bufferSizes.clear();
+               
+               int pid;
+               MPI_Comm_rank(MPI_COMM_WORLD, &pid); 
        
-                       for(int j=0;j<alignmentLength;j++){
-                               if(filter[j] == '1'){
-                                       filterSeq += align[j];
-                               }
-                       }
+               ifstream inFASTA;
+               openInputFile(filename, inFASTA);
+                       
+               string input;
+               int numbuf = 0;
+               while(!inFASTA.eof()){  
+                       input = getline(inFASTA);
 
-                       outFASTA << '>' << seq.getName() << endl << filterSeq << endl;
-                       numSeqs++;
-                       gobble(inFASTA);
+                       if (input.length() != 0) {
+                               numbuf += input.length();
+                               if(input[0] == '>'){    long int pos = inFASTA.tellg(); positions.push_back(pos - input.length() - 1);  buf[(pos - input.length() - 1)] = numbuf; }
+                       }
                }
-               outFASTA.close();
+
                inFASTA.close();
                
+               int numFastaSeqs = positions.size();
                
-               int filteredLength = 0;
-               for(int i=0;i<alignmentLength;i++){
-                       if(filter[i] == '1'){   filteredLength++;       }
-               }
+               numSeqs += numFastaSeqs;
                
-               cout << endl;
-               cout << "Length of filtered alignment: " << filteredLength << endl;
-               cout << "Number of columns removed: " << alignmentLength-filteredLength << endl;
-               cout << "Length of the original alignment: " << alignmentLength << endl;
-               cout << "Number of sequences used to construct filter: " << numSeqs << endl;
+               int numSeqsPerProcessor = numFastaSeqs / processors;
                
-               globaldata->clear();
+               for (int i = 0; i < processors; i++) {
+
+                       long int startPos = positions[ i * numSeqsPerProcessor ];
+                       if(i == processors - 1){
+                               numSeqsPerProcessor = numFastaSeqs - i * numSeqsPerProcessor;
+                               bufferSizes.push_back(numbuf-buf[startPos]);
+                       }else{  
+                               int myEnd = positions[ (i+1) * numSeqsPerProcessor ];
+                               bufferSizes.push_back(buf[myEnd]-buf[startPos]);
+                       }
+                       lines.push_back(new linePair(startPos, numSeqsPerProcessor));
+               }
                
                return 0;
-               
        }
        catch(exception& e) {
-               cout << "Standard Error: " << e.what() << " has occurred in the FilterSeqsCommand class Function execute. Please contact Pat Schloss at pschloss@microbio.umass.edu." << "\n";
+               m->errorOut(e, "FilterSeqsCommand", "setLines");
                exit(1);
        }
-       catch(...) {
-               cout << "An unknown error has occurred in the FilterSeqsCommand class function execute. Please contact Pat Schloss at pschloss@microbio.umass.edu." << "\n";
+}
+/**************************************************************************************************/
+int FilterSeqsCommand::parseBuffer(string file, vector<string>& seqs) {
+       try {
+               
+               istringstream iss (file,istringstream::in);
+               string name, seqstring;
+       
+               while (iss) {
+                       
+                       if (m->control_pressed) { return 0; }
+                               
+                       Sequence seq(iss); gobble(iss);
+       
+                       if (seq.getName() != "") {
+                               seqs.push_back(seq.getAligned());       
+                       }
+               }
+               
+               return 0;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "FilterSeqsCommand", "parseBuffer");
                exit(1);
        }
 }
-
 /**************************************************************************************/