]> git.donarmstrong.com Git - mothur.git/blobdiff - filterseqscommand.cpp
testing
[mothur.git] / filterseqscommand.cpp
index 8864bb3c57d32052220013ebf88267f865ccdbd1..6d894d866a2930eb009d20627cb03f509b94ef2e 100644 (file)
  */
 
 #include "filterseqscommand.h"
+#include "sequence.hpp"
 
 /**************************************************************************************/
 
-FilterSeqsCommand::FilterSeqsCommand(){
-       globaldata = GlobalData::getInstance();
-       
-       if(globaldata->getFastaFile() == "")            {       cout << "You must enter a fasta formatted file" << endl;        }
-       trump = globaldata->getTrump()[0];
-       vertical = 
-//     readSeqs->read();
-//     db = readSeqs->getDB();
-//     numSeqs = db->size();
-//     
-//     alignmentLength = db->get(0).getAlignLength();
-//
-//     filter = string(alignmentLength, '1');
+FilterSeqsCommand::FilterSeqsCommand(string option)  {
+       try {
+               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", "outputdir","inputdir", "processors"};
+                       vector<string> myArray (Array, Array+(sizeof(Array)/sizeof(string)));
+                       
+                       OptionParser parser(option);
+                       map<string,string> parameters = parser.getParameters();
+                       
+                       ValidParameters validParameter;
+                       map<string,string>::iterator it;
+                       
+                       //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 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
+                       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 { 
+                               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 = "*"; }
+                       trump = temp[0];
+                       
+                       temp = validParameter.validFile(parameters, "soft", false);                             if (temp == "not found") { soft = 0; }
+                       else {  soft = (float)atoi(temp.c_str()) / 100.0;  }
+                       
+                       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 = "T"; }
+                       
+                       numSeqs = 0;
+                       
+               }
+               
+       }
+       catch(exception& e) {
+               m->errorOut(e, "FilterSeqsCommand", "FilterSeqsCommand");
+               exit(1);
+       }
+}
+
+//**********************************************************************************************************************
+
+void FilterSeqsCommand::help(){
+       try {
+                               
+               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) {
+               m->errorOut(e, "FilterSeqsCommand", "help");
+               exit(1);
+       }
 }
 
 /**************************************************************************************/
 
-void FilterSeqsCommand::doHard() {
+int FilterSeqsCommand::execute() {     
+       try {
        
-//     string hardName = globaldata->getHard();
-//     string hardFilter = "";
-//             
-//     ifstream fileHandle;
-//     openInputFile(hardName, fileHandle);
-//     
-//     fileHandle >> hardFilter;
-//     
-//     if(hardFilter.length() != filter.length()){
-//             cout << "The hard filter is not the same length as the alignment: Hard filter will not be applied." << endl;
-//     }
-//     else{
-//             filter = hardFilter;
-//     }
+               if (abort == true) { return 0; }
+               
+               ifstream inFASTA;
+               openInputFile(fastafileNames[0], inFASTA);
+               
+               Sequence testSeq(inFASTA);
+               alignmentLength = testSeq.getAlignLength();
+               inFASTA.close();
+               
+               ////////////create filter/////////////////
+               
+               filter = createFilter();
+               
+               if (m->control_pressed) { return 0; }
+               
+               ofstream outFilter;
+               
+               string filterFile = outputDir + filterFileName + ".filter";
+               openOutputFile(filterFile, outFilter);
+               outFilter << filter << endl;
+               outFilter.close();
+               outputNames.push_back(filterFile);
+               
+               
+               ////////////run filter/////////////////
+               
+               filterSequences();
+                                               
+               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);
+       }
 }
-
 /**************************************************************************************/
+int FilterSeqsCommand::filterSequences() {     
+       try {
+       
+               for (int s = 0; s < fastafileNames.size(); s++) {
+                       
+                               for (int i = 0; i < lines.size(); i++) {  delete lines[i];  }  lines.clear();
+                               
+                               string filteredFasta = outputDir + getRootName(getSimpleName(fastafileNames[s])) + "filter.fasta";
+#ifdef USE_MPI 
+                               int pid, start, end; 
+                               int tag = 2001;
+                                               
+                               MPI_Status status; 
+                               MPI_Comm_size(MPI_COMM_WORLD, &processors); //set processors to the number of mpi processes running
+                               MPI_Comm_rank(MPI_COMM_WORLD, &pid); //find out who we are
+                               
+                               MPI_File outMPI;
+                               MPI_File inMPI;
+                               int outMode=MPI_MODE_CREATE|MPI_MODE_WRONLY; 
+                               int inMode=MPI_MODE_RDONLY; 
+                               
+                               char outFilename[filteredFasta.length()];
+                               strcpy(outFilename, filteredFasta.c_str());
+                               
+                               char inFileName[fastafileNames[s].length()];
+                               strcpy(inFileName, fastafileNames[s].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, outFilename, outMode, MPI_INFO_NULL, &outMPI);
+                               
+                               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(&bufferSizes[j], 1, MPI_INT, j, tag, MPI_COMM_WORLD); //how bytes for the read
+                                               }
+                                       }
+                                       
+                                       //read your peice of file
+                                       char buf[bufferSizes[0]];
+                                       MPI_File_read_at(inMPI, lines[0]->start, buf, bufferSizes[0], MPI_CHAR, &status);
+                                       istringstream iss (buf,istringstream::in);
+                                       
+                                       //do your part
+                                       driverMPIRun(iss, outMPI);
+                                       
+                                       //wait on chidren
+                                       for(int i = 1; i < processors; i++) { 
+                                               char buf[4];
+                                               MPI_Recv(buf, 4, MPI_CHAR, i, tag, MPI_COMM_WORLD, &status); 
+                                       }
+                                       
+                               }else { //you are a child process
+                                       //receive your section of file
+                                       int startPos, numLines, bufferSize;
+                                       MPI_Recv(&startPos, 1, MPI_INT, 0, tag, MPI_COMM_WORLD, &status);
+                                       MPI_Recv(&bufferSize, 1, MPI_INT, 0, tag, MPI_COMM_WORLD, &status);
+                                                                       
+                                       //read your peice of file
+                                       char buf2[bufferSize];
+                                       MPI_File_read_at(inMPI, startPos, buf2, bufferSize, MPI_CHAR, &status);
+                                       istringstream iss (buf2,istringstream::in);
+                                       
+                                       //do your part
+                                       driverMPIRun(iss, outMPI);
+                               
+                                       char buf[4];
+                                       strcpy(buf, "done"); 
+                                       
+                                       //tell parent you are done.
+                                       MPI_Send(buf, 4, MPI_CHAR, 0, tag, MPI_COMM_WORLD);
+                               }
+                               
+                               MPI_File_close(&outMPI);
+                               MPI_File_close(&inMPI);
+                               
+#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();
+                                       
+                                       lines.push_back(new linePair(0, numFastaSeqs));
+                                       
+                                       driverRunFilter(filter, filteredFasta, fastafileNames[s], lines[0]);
+                               }else{
+                                       setLines(fastafileNames[s]);                                    
+                                       createProcessesRunFilter(filter, fastafileNames[s]); 
+                                       
+                                       rename((fastafileNames[s] + toString(processIDS[0]) + ".temp").c_str(), filteredFasta.c_str());
+                               
+                                       //append fasta files
+                                       for(int i=1;i<processors;i++){
+                                               appendAlignFiles((fastafileNames[s] + toString(processIDS[i]) + ".temp"), filteredFasta);
+                                               remove((fastafileNames[s] + toString(processIDS[i]) + ".temp").c_str());
+                                       }
+                               }
+                               
+                               if (m->control_pressed) {  return 1; }
+               #else
+                               ifstream inFASTA;
+                               openInputFile(fastafileNames[s], inFASTA);
+                               int numFastaSeqs=count(istreambuf_iterator<char>(inFASTA),istreambuf_iterator<char>(), '>');
+                               inFASTA.close();
+                                       
+                               lines.push_back(new linePair(0, numFastaSeqs));
+                               
+                               driverRunFilter(filter, filteredFasta, fastafileNames[s], lines[0]);
 
-void FilterSeqsCommand::doTrump() {
+                               if (m->control_pressed) {  return 1; }
+               #endif
+#endif
+                       outputNames.push_back(filteredFasta);
+               }
 
-       
-       for(int i = 0; i < numSeqs; i++) {
-               string curAligned = db->get(i).getAligned();;
+               return 0;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "FilterSeqsCommand", "filterSequences");
+               exit(1);
+       }
+}
+/**************************************************************************************/
+int FilterSeqsCommand::driverMPIRun(istringstream& in, MPI_File& outMPI) {     
+       try {
+               string outputString = "";
+               int count = 0;
+               MPI_Status status; 
+               
+               while (!in.eof()) {
+                       
+                       Sequence seq(in); gobble(in);
+                       
+                       if (seq.getName() != "") {
+                               string align = seq.getAligned();
+                               string filterSeq = "";
+                                       
+                               for(int j=0;j<alignmentLength;j++){
+                                       if(filter[j] == '1'){
+                                               filterSeq += align[j];
+                                       }
+                               }
+                               
+                               count++;
+                               outputString += ">" + seq.getName() + "\n" + filterSeq + "\n";
+                               
+                               if(count % 10 == 0){ //output to file 
+                                       //send results to parent
+                                       int length = outputString.length();
+                                       char buf[length];
+                                       strcpy(buf, outputString.c_str()); 
+                               
+                                       MPI_File_write_shared(outMPI, buf, length, MPI_CHAR, &status);
+                                       outputString = "";
+                               }
 
-               for(int j = 0; j < alignmentLength; j++) {
-                       if(curAligned[j] == trump){
-                               filter[j] = '0';
                        }
                }
-       }
+               
+               if(outputString != ""){ //output to file 
+                       //send results to parent
+                       int length = outputString.length();
+                       char buf[length];
+                       strcpy(buf, outputString.c_str()); 
+                       
+                       MPI_File_write_shared(outMPI, buf, length, MPI_CHAR, &status);
+                       outputString = "";
+               }
 
+                       
+               return 0;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "FilterSeqsCommand", "driverRunFilter");
+               exit(1);
+       }
 }
-
 /**************************************************************************************/
-
-void FilterSeqsCommand::doVertical() {
-
-//     vector<int> counts(alignmentLength, 0);
-//     
-//     for(int i = 0; i < numSeqs; i++) {
-//             string curAligned = db->get(i).getAligned();;
-//             
-//             for(int j = 0; j < alignmentLength; j++) {
-//                     if(curAligned[j] == '-' || curAligned[j] == '.'){
-//                             counts[j]++;
-//                     }
-//             }
-//     }
-//     for(int i=0;i<alignmentLength;i++){
-//             if(counts[i] == numSeqs)        {       filter[i] = '0';                }
-//     }
+int FilterSeqsCommand::driverRunFilter(string F, string outputFilename, string inputFilename, linePair* line) {        
+       try {
+               ofstream out;
+               openOutputFile(outputFilename, out);
+               
+               ifstream in;
+               openInputFile(inputFilename, in);
+                               
+               in.seekg(line->start);
+               
+               for(int i=0;i<line->numSeqs;i++){
+                               
+                               if (m->control_pressed) { in.close(); out.close(); 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];
+                                               }
+                                       }
+                                       
+                                       out << '>' << seq.getName() << endl << filterSeq << endl;
+                               }
+                               gobble(in);
+               }
+               out.close();
+               in.close();
+               
+               return 0;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "FilterSeqsCommand", "driverRunFilter");
+               exit(1);
+       }
 }
+/**************************************************************************************************/
 
+int FilterSeqsCommand::createProcessesRunFilter(string F, string filename) {
+       try {
+#if defined (__APPLE__) || (__MACH__) || (linux) || (__linux)
+               int process = 0;
+               int exitCommand = 1;
+               processIDS.clear();
+               
+               //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){
+                               string filteredFasta = filename + toString(getpid()) + ".temp";
+                               driverRunFilter(F, filteredFasta, filename, lines[process]);
+                               exit(0);
+                       }else { m->mothurOut("unable to spawn the necessary processes."); m->mothurOutEndLine(); exit(0); }
+               }
+               
+               //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", "createProcessesRunFilter");
+               exit(1);
+       }
+}
 /**************************************************************************************/
+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++) {
+                       
+#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[fastafileNames[s].length()];
+                               strcpy(tempFileName, fastafileNames[s].c_str());
+               cout << pid  << " tempFileName " << tempFileName << endl;               
+                               MPI_File_open(MPI_COMM_WORLD, tempFileName, MPI_MODE_RDONLY, MPI_INFO_NULL, &in);  //comm, filename, mode, info, filepointer
+               cout << pid  << " here" << endl;                        
+                               if (pid == 0) { //you are the root process
+                                               setLines(fastafileNames[s]);
+                               cout << pid  << " after setlines" << endl;                      
+                                               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(&bufferSizes[j], 1, MPI_INT, j, tag, MPI_COMM_WORLD); //how bytes for the read
+                                                       }
+                                               }
+                               cout << pid << " done sending" << endl;
+                                               char buf[bufferSizes[0]];
+                                               MPI_File_read_at(in, 0, buf, bufferSizes[0], MPI_CHAR, &status);
+                       cout << pid << " done reading" << endl;
+                                               string tempBuf = buf;
+                                               if (tempBuf.length() > bufferSizes[0]) { tempBuf = tempBuf.substr(0, bufferSizes[0]); }
 
-void FilterSeqsCommand::doSoft() {
-
-//     int softThreshold = numSeqs * (float)atoi(globaldata->getSoft().c_str()) / 100.0;
-//
-//     vector<int> a(alignmentLength, 0);
-//     vector<int> t(alignmentLength, 0);
-//     vector<int> g(alignmentLength, 0);
-//     vector<int> c(alignmentLength, 0);
-//     vector<int> x(alignmentLength, 0);
-//     
-//     for(int i=0;i<numSeqs;i++){
-//             string curAligned = db->get(i).getAligned();;
-//
-//             for(int j=0;j<alignmentLength;j++){
-//                     if(toupper(curAligned[j]) == 'A')                                                                               {       a[j]++; }
-//                     else if(toupper(curAligned[j]) == 'T' || toupper(curAligned[i]) == 'U') {       t[j]++; }
-//                     else if(toupper(curAligned[j]) == 'G')                                                                  {       g[j]++; }
-//                     else if(toupper(curAligned[j]) == 'C')                                                                  {       c[j]++; }
-//             }
-//     }
-//
-//     for(int i=0;i<alignmentLength;i++){
-//             if(a[i] < softThreshold && t[i] < softThreshold && g[i] < softThreshold && c[i] < softThreshold){
-//                     filter[i] = '0';                        
-//             }
-//     }
-}
+                                               MPICreateFilter(F, tempBuf);
+                               cout << pid << "done with mpi create filter " << endl;                          
+                                               if (m->control_pressed) { MPI_File_close(&in); return filterString; }
+                                                                                               
+                                               vector<int> temp; temp.resize(alignmentLength+1);
+                                               
+                                               //get the frequencies from the child processes
+                                               for(int i = 0; i < ((processors-1)*5); i++) { 
+                                                       MPI_Recv(&temp[0], (alignmentLength+1), MPI_INT, MPI_ANY_SOURCE, tag, MPI_COMM_WORLD, &status); 
+                                                       int receiveTag = temp[temp.size()-1];  //child process added a int to the end to indicate what letter count this is for
+                                       
+                                                       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];    }
+                                                       }
+                                               } 
 
-/**************************************************************************************/
+                                               
+                               }else { //i am the child process
+                       cout << pid << endl;
+                                       int startPos, bufferSize;
+                                       ierr = MPI_Recv(&startPos, 1, MPI_INT, 0, tag, MPI_COMM_WORLD, &status);
+                                       ierr = MPI_Recv(&bufferSize, 1, MPI_INT, 0, tag, MPI_COMM_WORLD, &status);
+                       cout << pid << '\t' << startPos << '\t' << bufferSize << endl;                                          
+                                       //send freqs
+                                       char buf2[bufferSize];
+                                       MPI_File_read_at( in, startPos, buf2, bufferSize, MPI_CHAR, &status);
+                       
+                                       string tempBuf = buf2;
+                                       if (tempBuf.length() > bufferSize) { tempBuf = tempBuf.substr(0, bufferSize); }
+                       
+                                       MPICreateFilter(F, tempBuf);
+                               cout << pid << "done with mpi create filter " << endl;          
+                                       if (m->control_pressed) { MPI_File_close(&in); return filterString; }
+                                       
+                                       //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);
+                               MPI_File_close(&in);
+                               
+#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;
+                                       
+                                       for (int i = 0; i < lines.size(); i++) {  delete lines[i];  }  lines.clear();
+                                       lines.push_back(new linePair(0, numFastaSeqs));
+                                       
+                                       driverCreateFilter(F, fastafileNames[s], lines[0]);
+                               }else{
+                                       setLines(fastafileNames[s]);                                    
+                                       createProcessesCreateFilter(F, fastafileNames[s]); 
+                               }
+                               
+                               if (m->control_pressed) {  return filterString; }
+               #else
+                               ifstream inFASTA;
+                               openInputFile(fastafileNames[s], inFASTA);
+                               int numFastaSeqs=count(istreambuf_iterator<char>(inFASTA),istreambuf_iterator<char>(), '>');
+                               inFASTA.close();
+                               
+                               numSeqs += numFastaSeqs;
+                               
+                               for (int i = 0; i < lines.size(); i++) {  delete lines[i];  }  lines.clear();
+                               lines.push_back(new linePair(0, numFastaSeqs));
+                               
+                               driverCreateFilter(F, fastafileNames[s], lines[0]);
+                               if (m->control_pressed) {  return filterString; }
+               #endif
+#endif
+                       
+                       }
+               }
 
-int FilterSeqsCommand::execute() {     
+               F.setNumSeqs(numSeqs);
+                               
+               if(isTrue(vertical) == 1)       {       F.doVertical(); }
+               if(soft != 0)                           {       F.doSoft();             }
+                       
+               filterString = F.getFilter();
+
+               return filterString;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "FilterSeqsCommand", "createFilter");
+               exit(1);
+       }
+}
+/**************************************************************************************/
+int FilterSeqsCommand::driverCreateFilter(Filters& F, string filename, linePair* line) {       
        try {
                
-               ifstream inFASTA;
-               openInputFile(globaldata->getFastaFile(), inFASTA);
+               ifstream in;
+               openInputFile(filename, in);
+                               
+               in.seekg(line->start);
                
-               Sequence currSequence(inFASTA);
-               alignmentLength = currSequence.getAlignLength();
+               for(int i=0;i<line->numSeqs;i++){
+                               
+                       if (m->control_pressed) { in.close(); return 1; }
+                                       
+                       Sequence seq(in);
+                       if (seq.getName() != "") {
+                                       if (seq.getAligned().length() != alignmentLength) { m->mothurOut("Sequences are not all the same length, please correct."); m->mothurOutEndLine(); m->control_pressed = true;  }
+                                       
+                                       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();             }
+               }
                
-               //while
+               //report progress
+               if((line->numSeqs) % 100 != 0){ m->mothurOut(toString(line->numSeqs)); m->mothurOutEndLine();           }
                
+               in.close();
                
-               if(globaldata->getHard().compare("") != 0)      {       doHard();               }       //      has to be applied first!
-               if(globaldata->getTrump().compare("") != 0)     {       doTrump();              }
-               if(isTrue(globaldata->getVertical()))           {       doVertical();   }
-               if(globaldata->getSoft().compare("") != 0)      {       doSoft();               }
-
+               return 0;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "FilterSeqsCommand", "driverCreateFilter");
+               exit(1);
+       }
+}
+/**************************************************************************************/
+int FilterSeqsCommand::MPICreateFilter(Filters& F, string input) {     
+       try {
                
+               vector<string> seqStrings;
+               parseBuffer(input, seqStrings);
                
+               for(int i=0;i<seqStrings.size();i++){
+                       
+                       if (seqStrings[i].length() != alignmentLength) {  cout << i << '\t' << seqStrings[i].length() << "Sequences are not all the same length, please correct." << endl; m->control_pressed = true;  }
+
+                       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();             }
+               }
                
+               //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);
+       }
+}
+
+/**************************************************************************************************/
+
+int FilterSeqsCommand::createProcessesCreateFilter(Filters& F, string filename) {
+       try {
+#if defined (__APPLE__) || (__MACH__) || (linux) || (__linux)
+               int process = 0;
+               int exitCommand = 1;
+               processIDS.clear();
                
+               //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); }
+               }
+               
+               //force parent to wait until all the processes are done
+               for (int i=0;i<processors;i++) { 
+                       int temp = processIDS[i];
+                       wait(&temp);
+               }
                
-               ofstream outfile;
-               string filterFile = getRootName(globaldata->inputFileName) + "filter";
-               openOutputFile(filterFile, outfile);
+               return exitCommand;
+#endif         
+       }
+       catch(exception& e) {
+               m->errorOut(e, "FilterSeqsCommand", "createProcessesCreateFilter");
+               exit(1);
+       }
+}
+/**************************************************************************************************/
 
-               outfile << filter << endl;
-               outfile.close();
+int FilterSeqsCommand::setLines(string filename) {
+       try {
+               for (int i = 0; i < lines.size(); i++) {  delete lines[i];  }  lines.clear();
+               vector<long int> positions;
+               bufferSizes.clear();
                
-               string filteredFasta = getRootName(globaldata->inputFileName) + "filter.fasta";
-               openOutputFile(filteredFasta, outfile);
+               ifstream inFASTA;
+               openInputFile(filename, inFASTA);
+                       
+               string input;
+               while(!inFASTA.eof()){  
+                       input = getline(inFASTA);
 
-               for(int i=0;i<numSeqs;i++){
-                       string curAligned = db->get(i).getAligned();
-                       outfile << '>' << db->get(i).getName() << endl;
-                       for(int j=0;j<alignmentLength;j++){
-                               if(filter[j] == '1'){
-                                       outfile << curAligned[j];
-                               }
+                       if (input.length() != 0) {
+                               if(input[0] == '>'){ long int pos = inFASTA.tellg(); positions.push_back(pos - input.length() - 1);     }
                        }
-                       outfile << endl;
                }
-               outfile.close();
+               inFASTA.close();
                
-               int filteredLength = 0;
-               for(int i=0;i<alignmentLength;i++){
-                       if(filter[i] == '1'){   filteredLength++;       }
+               int numFastaSeqs = positions.size();
+       
+               FILE * pFile;
+               long size;
+               
+               //get num bytes in file
+               pFile = fopen (filename.c_str(),"rb");
+               if (pFile==NULL) perror ("Error opening file");
+               else{
+                       fseek (pFile, 0, SEEK_END);
+                       size=ftell (pFile);
+                       fclose (pFile);
                }
+       
+               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(size - startPos);
+                       }else{  
+                               long int myEnd = positions[ (i+1) * numSeqsPerProcessor ];
+                               bufferSizes.push_back(myEnd-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.eof()) {
+                       
+                       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);
        }
 }
-
 /**************************************************************************************/