]> git.donarmstrong.com Git - mothur.git/blobdiff - chimeraslayercommand.cpp
added fontsize to heatmap.sim, paralellized chimera.slayer byGroup for all os's,...
[mothur.git] / chimeraslayercommand.cpp
index f15581f271382f671505dc708a9ffa2545e32eeb..0512be1a70b1d12b0667f5945e4d1acb5b4768d8 100644 (file)
@@ -535,7 +535,7 @@ ChimeraSlayerCommand::ChimeraSlayerCommand(string option)  {
                        //until we resolve the issue 10-18-11
 #if defined (__APPLE__) || (__MACH__) || (linux) || (__linux)
 #else
-                       processors=1;
+                       //processors=1;
 #endif
                }
        }
@@ -549,16 +549,25 @@ ChimeraSlayerCommand::ChimeraSlayerCommand(string option)  {
 int ChimeraSlayerCommand::execute(){
        try{
                if (abort == true) { if (calledHelp) { return 0; }  return 2;   }
-                       
+
                for (int s = 0; s < fastaFileNames.size(); s++) {
                                
                        m->mothurOut("Checking sequences from " + fastaFileNames[s] + " ..." ); m->mothurOutEndLine();
                
                        int start = time(NULL); 
+                       if (outputDir == "") { outputDir = m->hasPath(fastaFileNames[s]);  }//if user entered a file with a path then preserve it                               
+                       string outputFileName = outputDir + m->getRootName(m->getSimpleName(fastaFileNames[s])) + "slayer.chimera";
+                       string accnosFileName = outputDir + m->getRootName(m->getSimpleName(fastaFileNames[s]))  + "slayer.accnos";
+                       string trimFastaFileName = outputDir + m->getRootName(m->getSimpleName(fastaFileNames[s]))  + "slayer.fasta";           
                        
-                       //you provided a groupfile
-                       string groupFile = "";
-                       if (groupFileNames.size() != 0) { groupFile = groupFileNames[s]; }
+                       //clears files
+                       ofstream out, out1, out2;
+                       m->openOutputFile(outputFileName, out); out.close(); 
+                       m->openOutputFile(accnosFileName, out1); out1.close();
+                       if (trim) { m->openOutputFile(trimFastaFileName, out2); out2.close(); }
+                       outputNames.push_back(outputFileName); outputTypes["chimera"].push_back(outputFileName);
+                       outputNames.push_back(accnosFileName); outputTypes["accnos"].push_back(accnosFileName);
+                       if (trim) {  outputNames.push_back(trimFastaFileName); outputTypes["fasta"].push_back(trimFastaFileName); }                     
                        
                        //maps a filename to priority map. 
                        //if no groupfile this is fastafileNames[s] -> prioirity
@@ -569,143 +578,69 @@ int ChimeraSlayerCommand::execute(){
                        fileToPriority[fastaFileNames[s]] = priority; //default
                        fileGroup[fastaFileNames[s]] = "noGroup";
                        SequenceParser* parser = NULL;
-                       int totalSeqs = 0;
                        int totalChimeras = 0;
+                       lines.clear();
                        
-                       if ((templatefile == "self") && (groupFile == "")) { 
-                               fileGroup.clear();
-                               fileToPriority.clear();
-                               if (processors != 1) { m->mothurOut("When using template=self, mothur can only use 1 processor, continuing."); m->mothurOutEndLine(); processors = 1; }
-                               string nameFile = "";
-                               if (nameFileNames.size() != 0) { //you provided a namefile and we don't need to create one
-                                       nameFile = nameFileNames[s];
-                               }else {  nameFile = getNamesFile(fastaFileNames[s]); }
-                               
-                               //sort fastafile by abundance, returns new sorted fastafile name
-                               m->mothurOut("Sorting fastafile according to abundance..."); cout.flush(); 
-                               priority = sortFastaFile(fastaFileNames[s], nameFile);
-                               m->mothurOut("Done."); m->mothurOutEndLine();
-                               
-                               fileToPriority.clear();
-                               fileGroup.clear();
-                               fileToPriority[fastaFileNames[s]] = priority;
-                               fileGroup[fastaFileNames[s]] = "noGroup";
-                               if (m->control_pressed) {  for (int j = 0; j < outputNames.size(); j++) {       m->mothurRemove(outputNames[j]);        }  return 0;    }
-                       }else if ((templatefile == "self") && (groupFile != "")) {
-                               fileGroup.clear();
-                               fileToPriority.clear();
-                               if (processors != 1) { m->mothurOut("When using template=self, mothur can only use 1 processor, continuing."); m->mothurOutEndLine(); processors = 1; }
-                               string nameFile = "";
-                               if (nameFileNames.size() != 0) { //you provided a namefile and we don't need to create one
-                                       nameFile = nameFileNames[s];
-                               }else { nameFile = getNamesFile(fastaFileNames[s]); }
-                               
-                               //Parse sequences by group
-                               parser = new SequenceParser(groupFile, fastaFileNames[s], nameFile);
-                               vector<string> groups = parser->getNamesOfGroups();
-                               
-                               for (int i = 0; i < groups.size(); i++) {
-                                       vector<Sequence> thisGroupsSeqs = parser->getSeqs(groups[i]);
-                                       map<string, string> thisGroupsMap = parser->getNameMap(groups[i]);
-                                       string newFastaFile = outputDir + m->getRootName(m->getSimpleName(fastaFileNames[s])) + groups[i] + "-sortedTemp.fasta";
-                                       priority = sortFastaFile(thisGroupsSeqs, thisGroupsMap, newFastaFile); 
-                                       fileToPriority[newFastaFile] = priority;
-                                       fileGroup[newFastaFile] = groups[i];
-                               }
-                       }
-                       
-                       if (outputDir == "") { outputDir = m->hasPath(fastaFileNames[s]);  }//if user entered a file with a path then preserve it                               
-                       string outputFileName = outputDir + m->getRootName(m->getSimpleName(fastaFileNames[s])) + "slayer.chimera";
-                       string accnosFileName = outputDir + m->getRootName(m->getSimpleName(fastaFileNames[s]))  + "slayer.accnos";
-                       string trimFastaFileName = outputDir + m->getRootName(m->getSimpleName(fastaFileNames[s]))  + "slayer.fasta";
+                       if (templatefile == "self") { setUpForSelfReference(parser, fileGroup, fileToPriority, s); }
                        
-                       //clears files
-                       ofstream out, out1, out2;
-                       m->openOutputFile(outputFileName, out); out.close(); 
-                       m->openOutputFile(accnosFileName, out1); out1.close();
-                       if (trim) { m->openOutputFile(trimFastaFileName, out2); out2.close(); }
-                       outputNames.push_back(outputFileName); outputTypes["chimera"].push_back(outputFileName);
-                       outputNames.push_back(accnosFileName); outputTypes["accnos"].push_back(accnosFileName);
-                       if (trim) {  outputNames.push_back(trimFastaFileName); outputTypes["fasta"].push_back(trimFastaFileName); }
-                       
-                       
-                       for (itFile = fileToPriority.begin(); itFile != fileToPriority.end(); itFile++) {
-                               
+                       if (m->control_pressed) {  if (parser != NULL) { delete parser; } for (int j = 0; j < outputNames.size(); j++) {        m->mothurRemove(outputNames[j]);        }  return 0;    }
+
+                       if (fileToPriority.size() == 1) { //you running without a groupfile
+                               itFile = fileToPriority.begin();
                                string thisFastaName = itFile->first;
                                map<string, int> thisPriority = itFile->second;
-                               
-                               //this is true when you have parsed by groups
-                               if (fileToPriority.size() > 1) { m->mothurOutEndLine(); m->mothurOut("Checking sequences from group: " + fileGroup[thisFastaName] + "."); m->mothurOutEndLine();  }
-                               
-                               string thisoutputFileName = outputDir + m->getRootName(m->getSimpleName(thisFastaName)) + fileGroup[thisFastaName] + "slayer.chimera";
-                               string thisaccnosFileName = outputDir + m->getRootName(m->getSimpleName(thisFastaName)) + fileGroup[thisFastaName] + "slayer.accnos";
-                               string thistrimFastaFileName = outputDir + m->getRootName(m->getSimpleName(thisFastaName)) + fileGroup[thisFastaName] + "slayer.fasta";
-                               
-                               //create chimera here if you are mac or linux because fork will copy for you. Create in create processes instead if you are windows.
-                               if (processors == 1) { templateSeqsLength = setupChimera(thisFastaName, thisPriority); }
+#ifdef USE_MPI 
+                               MPIExecute(thisFastaName, outputFileName, accnosFileName, trimFastaFileName, thisPriority);
+#else
+                               //break up file
+                               vector<unsigned long long> positions; 
+#if defined (__APPLE__) || (__MACH__) || (linux) || (__linux)
+                               positions = m->divideFile(thisFastaName, processors);
+                               for (int i = 0; i < (positions.size()-1); i++) {        lines.push_back(linePair(positions[i], positions[(i+1)]));      }
+#else
+                               if (processors == 1) {  lines.push_back(linePair(0, 1000)); }
                                else {
-                                       #if defined (__APPLE__) || (__MACH__) || (linux) || (__linux) || USE_MPI
-                                               templateSeqsLength = setupChimera(thisFastaName, thisPriority);
-                                       #endif
-                               }
-                               
-                               if (m->control_pressed) {  if (parser != NULL) { delete parser; } for (int j = 0; j < outputNames.size(); j++) {        m->mothurRemove(outputNames[j]);        }  return 0;    }
-                               
-                       #ifdef USE_MPI  
-                               MPIExecute(thisFastaName, thisoutputFileName, thisaccnosFileName, thistrimFastaFileName);
-                               if (m->control_pressed) { outputTypes.clear();  for (int j = 0; j < outputNames.size(); j++) {  m->mothurRemove(outputNames[j]);        }  return 0;  }
-                       #else
-                                       //break up file
-                                       vector<unsigned long long> positions; 
-                               #if defined (__APPLE__) || (__MACH__) || (linux) || (__linux)
-                                       positions = m->divideFile(thisFastaName, processors);
-                                       for (int i = 0; i < (positions.size()-1); i++) {        lines.push_back(new linePair(positions[i], positions[(i+1)]));  }
-                               #else
-                                       if (processors == 1) {  lines.push_back(new linePair(0, 1000)); }
-                                       else {
-                                               positions = m->setFilePosFasta(thisFastaName, numSeqs); 
+                                       positions = m->setFilePosFasta(thisFastaName, numSeqs); 
                                        
-                                               //figure out how many sequences you have to process
-                                               int numSeqsPerProcessor = numSeqs / processors;
-                                               for (int i = 0; i < processors; i++) {
-                                                       int startIndex =  i * numSeqsPerProcessor;
-                                                       if(i == (processors - 1)){      numSeqsPerProcessor = numSeqs - i * numSeqsPerProcessor;        }
-                                                       lines.push_back(new linePair(positions[startIndex], numSeqsPerProcessor));
-                                               }
+                                       //figure out how many sequences you have to process
+                                       int numSeqsPerProcessor = numSeqs / processors;
+                                       for (int i = 0; i < processors; i++) {
+                                               int startIndex =  i * numSeqsPerProcessor;
+                                               if(i == (processors - 1)){      numSeqsPerProcessor = numSeqs - i * numSeqsPerProcessor;        }
+                                               lines.push_back(linePair(positions[startIndex], numSeqsPerProcessor));
                                        }
-                               #endif
-                               
-                               if(processors == 1){
-                                       numSeqs = driver(lines[0], thisoutputFileName, thisFastaName, thisaccnosFileName, thistrimFastaFileName);
-                                       
-                                       int numNoParents = chimera->getNumNoParents();
-                                       if (numNoParents == numSeqs) { m->mothurOut("[WARNING]: megablast returned 0 potential parents for all your sequences. This could be due to formatdb.exe not being setup properly, please check formatdb.log for errors."); m->mothurOutEndLine(); }
-                                       
-                               }else{ numSeqs = createProcesses(thisoutputFileName, thisFastaName, thisaccnosFileName, thistrimFastaFileName); }
-                               
-                               if (m->control_pressed) { if (parser != NULL) { delete parser; }  outputTypes.clear(); if (trim) { m->mothurRemove(trimFastaFileName); } m->mothurRemove(outputFileName); m->mothurRemove(accnosFileName); for (int j = 0; j < outputNames.size(); j++) {       m->mothurRemove(outputNames[j]);        } for (int i = 0; i < lines.size(); i++) {  delete lines[i];  }  lines.clear(); delete chimera; return 0; }
-                               
-                       #endif
-                               
-                       #if defined (__APPLE__) || (__MACH__) || (linux) || (__linux) || USE_MPI
-                               delete chimera;
-                       #endif
+                               }
+#endif
+                               if(processors == 1){ numSeqs = driver(lines[0], outputFileName, thisFastaName, accnosFileName, trimFastaFileName, thisPriority);  }
+                               else{ numSeqs = createProcesses(outputFileName, thisFastaName, accnosFileName, trimFastaFileName, thisPriority); }
                                
-                               for (int i = 0; i < lines.size(); i++) {  delete lines[i];  }  lines.clear();
+                               if (m->control_pressed) { if (parser != NULL) { delete parser; }  outputTypes.clear(); if (trim) { m->mothurRemove(trimFastaFileName); } m->mothurRemove(outputFileName); m->mothurRemove(accnosFileName); for (int j = 0; j < outputNames.size(); j++) {       m->mothurRemove(outputNames[j]);        }  return 0; }                          
+#endif
+                       }else { //you have provided a groupfile
+#ifdef USE_MPI 
+                               MPIExecuteGroups(outputFileName, accnosFileName, trimFastaFileName, fileToPriority, fileGroup);
+#else
+                               if (processors == 1) { numSeqs = driverGroups(outputFileName, accnosFileName, trimFastaFileName, fileToPriority, fileGroup);    }
+                               else {  numSeqs = createProcessesGroups(outputFileName, accnosFileName, trimFastaFileName, fileToPriority, fileGroup);          } //destroys fileToPriority
+#endif
+
+#ifdef USE_MPI 
+                               int pid; 
+                               MPI_Comm_rank(MPI_COMM_WORLD, &pid); //find out who we are
                                
-                               //append files
-                               m->appendFiles(thisoutputFileName, outputFileName); m->mothurRemove(thisoutputFileName); 
-                               totalChimeras = m->appendFiles(thisaccnosFileName, accnosFileName); m->mothurRemove(thisaccnosFileName);
-                               if (trim) { m->appendFiles(thistrimFastaFileName, trimFastaFileName); m->mothurRemove(thistrimFastaFileName); }
+                               if (pid == 0) {
+#endif
                                
-                               totalSeqs += numSeqs;
+                               totalChimeras = deconvoluteResults(parser, outputFileName, accnosFileName, trimFastaFileName);
+#ifdef USE_MPI 
+                               }
+                               MPI_Barrier(MPI_COMM_WORLD); //make everyone wait
+#endif
                        }
-                       
-                       if (fileToPriority.size() > 1) { totalChimeras = deconvoluteResults(parser, outputFileName, accnosFileName, trimFastaFileName); }
-                       
+       
                        if (parser != NULL) { delete parser; } 
                        
-                       m->mothurOutEndLine(); m->mothurOut(toString(totalChimeras) + " chimera found."); m->mothurOutEndLine(); m->mothurOut("It took " + toString(time(NULL) - start) + " secs to check " + toString(totalSeqs) + " sequences.");     m->mothurOutEndLine();
+                       m->mothurOutEndLine(); m->mothurOut(toString(totalChimeras) + " chimera found."); m->mothurOutEndLine(); m->mothurOut("It took " + toString(time(NULL) - start) + " secs to check " + toString(numSeqs) + " sequences.");       m->mothurOutEndLine();
                }
                
                //set accnos file as new current accnosfile
@@ -736,7 +671,117 @@ int ChimeraSlayerCommand::execute(){
        }
 }
 //**********************************************************************************************************************
-int ChimeraSlayerCommand::MPIExecute(string inputFile, string outputFileName, string accnosFileName, string trimFastaFileName){
+int ChimeraSlayerCommand::MPIExecuteGroups(string outputFileName, string accnosFileName, string trimFastaFileName, map<string, map<string, int> >& fileToPriority, map<string, string>& fileGroup){
+       try {
+#ifdef USE_MPI 
+               int pid; 
+               int tag = 2001;
+               
+               MPI_Status status; 
+               MPI_Comm_rank(MPI_COMM_WORLD, &pid); //find out who we are
+               MPI_Comm_size(MPI_COMM_WORLD, &processors); 
+       
+               //put filenames in a vector, then pass each process a starting and ending point in the vector
+               //all processes already have the fileToPriority and fileGroup, they just need to know which files to process
+               map<string, map<string, int> >::iterator itFile;
+               vector<string> filenames;
+               for(itFile = fileToPriority.begin(); itFile != fileToPriority.end(); itFile++) { filenames.push_back(itFile->first); }
+               
+               int numGroupsPerProcessor = filenames.size() / processors;
+               int startIndex =  pid * numGroupsPerProcessor;
+               int endIndex = (pid+1) * numGroupsPerProcessor;
+               if(pid == (processors - 1)){    endIndex = filenames.size();    }
+               
+               vector<unsigned long long> MPIPos;
+               
+               MPI_File outMPI;
+               MPI_File outMPIAccnos;
+               MPI_File outMPIFasta;
+               
+               int outMode=MPI_MODE_CREATE|MPI_MODE_WRONLY; 
+               int inMode=MPI_MODE_RDONLY; 
+               
+               char outFilename[1024];
+               strcpy(outFilename, outputFileName.c_str());
+               
+               char outAccnosFilename[1024];
+               strcpy(outAccnosFilename, accnosFileName.c_str());
+               
+               char outFastaFilename[1024];
+               strcpy(outFastaFilename, trimFastaFileName.c_str());
+               
+               MPI_File_open(MPI_COMM_WORLD, outFilename, outMode, MPI_INFO_NULL, &outMPI);
+               MPI_File_open(MPI_COMM_WORLD, outAccnosFilename, outMode, MPI_INFO_NULL, &outMPIAccnos);
+               if (trim) { MPI_File_open(MPI_COMM_WORLD, outFastaFilename, outMode, MPI_INFO_NULL, &outMPIFasta); }
+               
+               if (m->control_pressed) {   MPI_File_close(&outMPI); if (trim) {  MPI_File_close(&outMPIFasta);  } MPI_File_close(&outMPIAccnos);  return 0;  }
+               
+               //print headers
+               if (pid == 0) { //you are the root process 
+                       m->mothurOutEndLine();
+                       m->mothurOut("Only reporting sequence supported by " + toString(minBS) + "% of bootstrapped results.");
+                       m->mothurOutEndLine();
+                       
+                       string outTemp = "Name\tLeftParent\tRightParent\tDivQLAQRB\tPerIDQLAQRB\tBootStrapA\tDivQLBQRA\tPerIDQLBQRA\tBootStrapB\tFlag\tLeftWindow\tRightWindow\n";
+                       
+                       //print header
+                       int length = outTemp.length();
+                       char* buf2 = new char[length];
+                       memcpy(buf2, outTemp.c_str(), length);
+                       
+                       MPI_File_write_shared(outMPI, buf2, length, MPI_CHAR, &status);
+                       delete buf2;
+               }
+               MPI_Barrier(MPI_COMM_WORLD); //make everyone wait
+               
+               for (int i = startIndex; i < endIndex; i++) {
+                       
+                       int start = time(NULL);
+                       int num = 0;
+                       string thisFastaName = filenames[i];
+                       map<string, int> thisPriority = fileToPriority[thisFastaName];
+                       
+                       char inFileName[1024];
+                       strcpy(inFileName, thisFastaName.c_str());
+                       MPI_File inMPI;
+                       MPI_File_open(MPI_COMM_SELF, inFileName, inMode, MPI_INFO_NULL, &inMPI);  //comm, filename, mode, info, filepointer
+                       
+                       MPIPos = m->setFilePosFasta(thisFastaName, num); //fills MPIPos, returns numSeqs
+                       
+                       cout << endl << "Checking sequences from group: " << fileGroup[thisFastaName] << "." << endl; 
+                       
+                       driverMPI(0, num, inMPI, outMPI, outMPIAccnos, outMPIFasta, MPIPos, thisFastaName, thisPriority, true);
+                       numSeqs += num;
+                       
+                       MPI_File_close(&inMPI);
+                       m->mothurRemove(thisFastaName);
+                                               
+                       cout << endl << "It took " << toString(time(NULL) - start) << " secs to check " + toString(num) + " sequences from group " << fileGroup[thisFastaName] << "." << endl;
+               }
+               
+               if (pid == 0) {
+                       for(int i = 1; i < processors; i++) { 
+                               int temp = 0;
+                               MPI_Recv(&temp, 1, MPI_INT, i, 2001, MPI_COMM_WORLD, &status);
+                               numSeqs += temp;
+                       }
+               }else{ MPI_Send(&numSeqs, 1, MPI_INT, 0, 2001, MPI_COMM_WORLD); }
+               
+               MPI_File_close(&outMPI);
+               MPI_File_close(&outMPIAccnos); 
+               if (trim) { MPI_File_close(&outMPIFasta); }
+               
+               MPI_Barrier(MPI_COMM_WORLD); //make everyone wait
+#endif
+               return 0;
+               
+       }catch(exception& e) {
+               m->errorOut(e, "ChimeraSlayerCommand", "MPIExecuteGroups");
+               exit(1);
+       }
+}              
+//**********************************************************************************************************************
+int ChimeraSlayerCommand::MPIExecute(string inputFile, string outputFileName, string accnosFileName, string trimFastaFileName, map<string, int>& priority){
        try {
                
 #ifdef USE_MPI 
@@ -773,7 +818,7 @@ int ChimeraSlayerCommand::MPIExecute(string inputFile, string outputFileName, st
                MPI_File_open(MPI_COMM_WORLD, outAccnosFilename, outMode, MPI_INFO_NULL, &outMPIAccnos);
                if (trim) { MPI_File_open(MPI_COMM_WORLD, outFastaFilename, outMode, MPI_INFO_NULL, &outMPIFasta); }
                
-               if (m->control_pressed) {  MPI_File_close(&inMPI);  MPI_File_close(&outMPI); if (trim) {  MPI_File_close(&outMPIFasta);  } MPI_File_close(&outMPIAccnos);  delete chimera; return 0;  }
+               if (m->control_pressed) {  MPI_File_close(&inMPI);  MPI_File_close(&outMPI); if (trim) {  MPI_File_close(&outMPIFasta);  } MPI_File_close(&outMPIAccnos);  return 0;  }
                
                if (pid == 0) { //you are the root process 
                        m->mothurOutEndLine();
@@ -810,19 +855,9 @@ int ChimeraSlayerCommand::MPIExecute(string inputFile, string outputFileName, st
                        }
                        
                        //do your part
-                       driverMPI(startIndex, numSeqsPerProcessor, inMPI, outMPI, outMPIAccnos, outMPIFasta, MPIPos);
-                       
-                       int numNoParents = chimera->getNumNoParents();
-                       int temp;
-                       for(int i = 1; i < processors; i++) { 
-                               MPI_Recv(&temp, 1, MPI_INT, 1, tag, MPI_COMM_WORLD, &status);
-                               numNoParents += temp;
-                       }
-                       
-                       
-                       if (numSeqs == numNoParents) {  m->mothurOut("[WARNING]: megablast returned 0 potential parents for all your sequences. This could be due to formatdb.exe not being setup properly, please check formatdb.log for errors."); m->mothurOutEndLine(); }
-                       
-                       if (m->control_pressed) {  MPI_File_close(&inMPI);  MPI_File_close(&outMPI); if (trim) { MPI_File_close(&outMPIFasta); }  MPI_File_close(&outMPIAccnos);  delete chimera; return 0;  }
+                       driverMPI(startIndex, numSeqsPerProcessor, inMPI, outMPI, outMPIAccnos, outMPIFasta, MPIPos, inputFile, priority, false);
+                                               
+                       if (m->control_pressed) {  MPI_File_close(&inMPI);  MPI_File_close(&outMPI); if (trim) { MPI_File_close(&outMPIFasta); }  MPI_File_close(&outMPIAccnos);   return 0;  }
                        
                }else{ //you are a child process
                        if (templatefile != "self") { //if template=self we can only use 1 processor
@@ -836,12 +871,9 @@ int ChimeraSlayerCommand::MPIExecute(string inputFile, string outputFileName, st
                                if(pid == (processors - 1)){    numSeqsPerProcessor = numSeqs - pid * numSeqsPerProcessor;      }
                                
                                //do your part
-                               driverMPI(startIndex, numSeqsPerProcessor, inMPI, outMPI, outMPIAccnos, outMPIFasta, MPIPos);
-                               
-                               int numNoParents = chimera->getNumNoParents();
-                               MPI_Send(&numNoParents, 1, MPI_INT, 0, tag, MPI_COMM_WORLD);
+                               driverMPI(startIndex, numSeqsPerProcessor, inMPI, outMPI, outMPIAccnos, outMPIFasta, MPIPos, inputFile, priority, false);
                                
-                               if (m->control_pressed) {  MPI_File_close(&inMPI);  MPI_File_close(&outMPI); if (trim) { MPI_File_close(&outMPIFasta); }  MPI_File_close(&outMPIAccnos);  delete chimera; return 0;  }
+                               if (m->control_pressed) {  MPI_File_close(&inMPI);  MPI_File_close(&outMPI); if (trim) { MPI_File_close(&outMPIFasta); }  MPI_File_close(&outMPIAccnos);  return 0;  }
                                
                        }
                }
@@ -855,7 +887,7 @@ int ChimeraSlayerCommand::MPIExecute(string inputFile, string outputFileName, st
                
                
 #endif         
-               return 0;
+               return numSeqs;
        }
        catch(exception& e) {
                m->errorOut(e, "ChimeraSlayerCommand", "MPIExecute");
@@ -953,9 +985,10 @@ int ChimeraSlayerCommand::deconvoluteResults(SequenceParser* parser, string outp
                                                itChimeras = chimerasInFile.find(itUnique->second);
                                                
                                                if (itChimeras == chimerasInFile.end()) {
+                                                       //is this sequence not already in the file
                                                        itNames = namesInFile.find((itUnique->second));
                                                        
-                                                       if (itNames == namesInFile.end()) {cout << itUnique->second << endl; out << itUnique->second << '\t' << "no" << endl; namesInFile.insert(itUnique->second); }
+                                                       if (itNames == namesInFile.end()) { out << itUnique->second << '\t' << "no" << endl; namesInFile.insert(itUnique->second); }
                                                }
                                        }
                                }else { //read the rest of the line
@@ -980,6 +1013,7 @@ int ChimeraSlayerCommand::deconvoluteResults(SequenceParser* parser, string outp
                                                                
                                                                //then you really are a no so print, otherwise skip
                                                                if (itChimeras == chimerasInFile.end()) { print = true; }
+                                                               
                                                        }else{ print = true; }
                                                }
                                        }
@@ -1052,29 +1086,57 @@ int ChimeraSlayerCommand::deconvoluteResults(SequenceParser* parser, string outp
                m->errorOut(e, "ChimeraSlayerCommand", "deconvoluteResults");
                exit(1);
        }
-}      
+}
 //**********************************************************************************************************************
-int ChimeraSlayerCommand::setupChimera(string inputFile, map<string, int>& priority){
+int ChimeraSlayerCommand::setUpForSelfReference(SequenceParser*& parser, map<string, string>& fileGroup, map<string, map<string, int> >& fileToPriority, int s){
        try {
-               if (templatefile != "self") { //you want to run slayer with a reference template
-                       chimera = new ChimeraSlayer(inputFile, templatefile, trim, search, ksize, match, mismatch, window, divR, minSimilarity, minCoverage, minBS, minSNP, parents, iters, increment, numwanted, realign, blastlocation, rand());      
+               fileGroup.clear();
+               fileToPriority.clear();
+               
+               string nameFile = "";
+               if (nameFileNames.size() != 0) { //you provided a namefile and we don't need to create one
+                       nameFile = nameFileNames[s];
+               }else {  nameFile = getNamesFile(fastaFileNames[s]); }
+               
+               //you provided a groupfile
+               string groupFile = "";
+               if (groupFileNames.size() != 0) { groupFile = groupFileNames[s]; }
+               
+               if (groupFile == "") { 
+                       if (processors != 1) { m->mothurOut("When using template=self, mothur can only use 1 processor, continuing."); m->mothurOutEndLine(); processors = 1; }
+                                               
+                       //sort fastafile by abundance, returns new sorted fastafile name
+                       m->mothurOut("Sorting fastafile according to abundance..."); cout.flush(); 
+                       priority = sortFastaFile(fastaFileNames[s], nameFile);
+                       m->mothurOut("Done."); m->mothurOutEndLine();
+                       
+                       fileToPriority[fastaFileNames[s]] = priority;
+                       fileGroup[fastaFileNames[s]] = "noGroup";
                }else {
-                       chimera = new ChimeraSlayer(inputFile, templatefile, trim, priority, search, ksize, match, mismatch, window, divR, minSimilarity, minCoverage, minBS, minSNP, parents, iters, increment, numwanted, realign, blastlocation, rand());    
+                       //Parse sequences by group
+                       parser = new SequenceParser(groupFile, fastaFileNames[s], nameFile);
+                       vector<string> groups = parser->getNamesOfGroups();
+                       
+                       for (int i = 0; i < groups.size(); i++) {
+                               vector<Sequence> thisGroupsSeqs = parser->getSeqs(groups[i]);
+                               map<string, string> thisGroupsMap = parser->getNameMap(groups[i]);
+                               string newFastaFile = outputDir + m->getRootName(m->getSimpleName(fastaFileNames[s])) + groups[i] + "-sortedTemp.fasta";
+                               priority = sortFastaFile(thisGroupsSeqs, thisGroupsMap, newFastaFile); 
+                               fileToPriority[newFastaFile] = priority;
+                               fileGroup[newFastaFile] = groups[i];
+                       }
                }
                
-               if (m->control_pressed) { delete chimera; return 0; }
                
-               if (chimera->getUnaligned()) { delete chimera; m->mothurOut("Your template sequences are different lengths, please correct."); m->mothurOutEndLine(); m->control_pressed = true; return 0; }
-               
-               return (chimera->getLength());
+               return 0;
        }
        catch(exception& e) {
-               m->errorOut(e, "ChimeraSlayerCommand", "setupChimera");
+               m->errorOut(e, "ChimeraSlayerCommand", "setUpForSelfReference");
                exit(1);
        }
 }
-//**********************************************************************************************************************
 
+//**********************************************************************************************************************
 string ChimeraSlayerCommand::getNamesFile(string& inputFile){
        try {
                string nameFile = "";
@@ -1107,8 +1169,196 @@ string ChimeraSlayerCommand::getNamesFile(string& inputFile){
 }
 //**********************************************************************************************************************
 
-int ChimeraSlayerCommand::driver(linePair* filePos, string outputFName, string filename, string accnos, string fasta){
+int ChimeraSlayerCommand::driverGroups(string outputFName, string accnos, string fasta, map<string, map<string, int> >& fileToPriority, map<string, string>& fileGroup){
+       try {
+               int totalSeqs = 0;
+               
+               for (map<string, map<string, int> >::iterator itFile = fileToPriority.begin(); itFile != fileToPriority.end(); itFile++) {
+                       
+                       if (m->control_pressed) {  return 0;  }
+                       
+                       int start = time(NULL);
+                       string thisFastaName = itFile->first;
+                       map<string, int> thisPriority = itFile->second;
+                       string thisoutputFileName = outputDir + m->getRootName(m->getSimpleName(thisFastaName)) + fileGroup[thisFastaName] + "slayer.chimera";
+                       string thisaccnosFileName = outputDir + m->getRootName(m->getSimpleName(thisFastaName)) + fileGroup[thisFastaName] + "slayer.accnos";
+                       string thistrimFastaFileName = outputDir + m->getRootName(m->getSimpleName(thisFastaName)) + fileGroup[thisFastaName] + "slayer.fasta";
+                       
+                       m->mothurOutEndLine(); m->mothurOut("Checking sequences from group: " + fileGroup[thisFastaName] + "."); m->mothurOutEndLine(); 
+                       
+                       lines.clear();
+#if defined (__APPLE__) || (__MACH__) || (linux) || (__linux)
+                       int proc = 1;
+                       vector<unsigned long long> positions = m->divideFile(thisFastaName, proc);
+                       lines.push_back(linePair(positions[0], positions[1]));  
+#else
+                       lines.push_back(linePair(0, 1000)); 
+#endif                 
+                       int numSeqs = driver(lines[0], thisoutputFileName, thisFastaName, thisaccnosFileName, thistrimFastaFileName, thisPriority);
+                       
+                       //append files
+                       m->appendFiles(thisoutputFileName, outputFName); m->mothurRemove(thisoutputFileName); 
+                       m->appendFiles(thisaccnosFileName, accnos); m->mothurRemove(thisaccnosFileName);
+                       if (trim) { m->appendFiles(thistrimFastaFileName, fasta); m->mothurRemove(thistrimFastaFileName); }
+                       m->mothurRemove(thisFastaName);
+                       
+                       totalSeqs += numSeqs;
+                       
+                       m->mothurOutEndLine(); m->mothurOut("It took " + toString(time(NULL) - start) + " secs to check " + toString(numSeqs) + " sequences from group " + fileGroup[thisFastaName] + ".");     m->mothurOutEndLine();
+               }
+               
+               return totalSeqs;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "ChimeraSlayerCommand", "driverGroups");
+               exit(1);
+       }
+}
+/**************************************************************************************************/
+int ChimeraSlayerCommand::createProcessesGroups(string outputFName, string accnos, string fasta, map<string, map<string, int> >& fileToPriority, map<string, string>& fileGroup) {
        try {
+               int process = 1;
+               int num = 0;
+               processIDS.clear();
+               
+               if (fileToPriority.size() < processors) { processors = fileToPriority.size(); }
+               
+               int groupsPerProcessor = fileToPriority.size() / processors;
+               int remainder = fileToPriority.size() % processors;
+               
+               vector< map<string, map<string, int> > > breakUp;
+               
+               for (int i = 0; i < processors; i++) {
+                       map<string, map<string, int> > thisFileToPriority;
+                       map<string, map<string, int> >::iterator itFile;
+                       int count = 0;
+                       int enough = groupsPerProcessor;
+                       if (i == 0) { enough = groupsPerProcessor + remainder; }
+                       
+                       for (itFile = fileToPriority.begin(); itFile != fileToPriority.end();) {
+                               thisFileToPriority[itFile->first] = itFile->second;
+                               fileToPriority.erase(itFile++);
+                               count++;
+                               if (count == enough) { break; }
+                       }       
+                       breakUp.push_back(thisFileToPriority);
+               }
+                               
+#if defined (__APPLE__) || (__MACH__) || (linux) || (__linux)
+               //loop through and create all the processes you want
+               while (process != processors) {
+                       int pid = fork();
+                       
+                       if (pid > 0) {
+                               processIDS.push_back(pid);  //create map from line number to pid so you can append files in correct order later
+                               process++;
+                       }else if (pid == 0){
+                               num = driverGroups(outputFName + toString(getpid()) + ".temp", accnos + toString(getpid()) + ".temp", fasta + toString(getpid()) + ".temp", breakUp[process], fileGroup);
+                               
+                               //pass numSeqs to parent
+                               ofstream out;
+                               string tempFile = outputFName + toString(getpid()) + ".num.temp";
+                               m->openOutputFile(tempFile, out);
+                               out << num << endl;
+                               out.close();
+                               exit(0);
+                       }else { 
+                               m->mothurOut("[ERROR]: unable to spawn the necessary processes."); m->mothurOutEndLine(); 
+                               for (int i = 0; i < processIDS.size(); i++) { kill (processIDS[i], SIGINT); }
+                               exit(0);
+                       }
+               }
+               
+               num = driverGroups(outputFName, accnos, fasta, breakUp[0], fileGroup);
+
+               //force parent to wait until all the processes are done
+               for (int i=0;i<processors;i++) { 
+                       int temp = processIDS[i];
+                       wait(&temp);
+               }
+               
+               for (int i = 0; i < processIDS.size(); i++) {
+                       ifstream in;
+                       string tempFile =  outputFName + toString(processIDS[i]) + ".num.temp";
+                       m->openInputFile(tempFile, in);
+                       if (!in.eof()) { int tempNum = 0;  in >> tempNum; num += tempNum; }
+                       in.close(); m->mothurRemove(tempFile);
+               }
+#else
+               
+               //////////////////////////////////////////////////////////////////////////////////////////////////////
+               //Windows version shared memory, so be careful when passing variables through the slayerData struct. 
+               //Above fork() will clone, so memory is separate, but that's not the case with windows, 
+               //////////////////////////////////////////////////////////////////////////////////////////////////////
+               
+               vector<slayerData*> pDataArray; 
+               DWORD   dwThreadIdArray[processors-1];
+               HANDLE  hThreadArray[processors-1]; 
+               
+               //Create processor worker threads.
+               for(int i=1; i<processors; i++ ){
+                       string extension = toString(i) + ".temp";
+                       slayerData* tempslayer = new slayerData((outputFName + extension), (fasta + extension), (accnos + extension), templatefile, search, blastlocation, trimera, trim, realign, m, breakUp[i], fileGroup, ksize, match, mismatch, window, minSimilarity, minCoverage, minBS, minSNP, parents, iters, increment, numwanted, divR, priority, i);
+                       pDataArray.push_back(tempslayer);
+                       processIDS.push_back(i);
+                       
+                       //MySlayerThreadFunction is in header. It must be global or static to work with the threads.
+                       //default security attributes, thread function name, argument to thread function, use default creation flags, returns the thread identifier
+                       hThreadArray[i-1] = CreateThread(NULL, 0, MySlayerGroupThreadFunction, pDataArray[i-1], 0, &dwThreadIdArray[i-1]);   
+               }
+               
+               num = driverGroups(outputFName, accnos, fasta, breakUp[0], fileGroup);
+               
+               //Wait until all threads have terminated.
+               WaitForMultipleObjects(processors-1, hThreadArray, TRUE, INFINITE);
+               
+               //Close all thread handles and free memory allocations.
+               for(int i=0; i < pDataArray.size(); i++){
+                       num += pDataArray[i]->count;
+                       CloseHandle(hThreadArray[i]);
+                       delete pDataArray[i];
+               }
+#endif 
+               
+               //append output files
+               for(int i=0;i<processIDS.size();i++){
+                       m->appendFiles((outputFName + toString(processIDS[i]) + ".temp"), outputFName);
+                       m->mothurRemove((outputFName + toString(processIDS[i]) + ".temp"));
+                       
+                       m->appendFiles((accnos + toString(processIDS[i]) + ".temp"), accnos);
+                       m->mothurRemove((accnos + toString(processIDS[i]) + ".temp"));
+                       
+                       if (trim) {
+                               m->appendFiles((fasta + toString(processIDS[i]) + ".temp"), fasta);
+                               m->mothurRemove((fasta + toString(processIDS[i]) + ".temp"));
+                       }
+               }
+               
+               
+               return num;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "ChimeraSlayerCommand", "createProcessesGroups");
+               exit(1);
+       }
+}
+//**********************************************************************************************************************
+
+int ChimeraSlayerCommand::driver(linePair filePos, string outputFName, string filename, string accnos, string fasta, map<string, int>& priority){
+       try {
+               
+               Chimera* chimera;
+               if (templatefile != "self") { //you want to run slayer with a reference template
+                       chimera = new ChimeraSlayer(filename, templatefile, trim, search, ksize, match, mismatch, window, divR, minSimilarity, minCoverage, minBS, minSNP, parents, iters, increment, numwanted, realign, blastlocation, rand());       
+               }else {
+                       chimera = new ChimeraSlayer(filename, templatefile, trim, priority, search, ksize, match, mismatch, window, divR, minSimilarity, minCoverage, minBS, minSNP, parents, iters, increment, numwanted, realign, blastlocation, rand());     
+               }
+               
+               if (m->control_pressed) { delete chimera; return 0; }
+               
+               if (chimera->getUnaligned()) { delete chimera; m->mothurOut("Your template sequences are different lengths, please correct."); m->mothurOutEndLine(); m->control_pressed = true; return 0; }
+               templateSeqsLength = chimera->getLength();
+               
                ofstream out;
                m->openOutputFile(outputFName, out);
                
@@ -1121,16 +1371,16 @@ int ChimeraSlayerCommand::driver(linePair* filePos, string outputFName, string f
                ifstream inFASTA;
                m->openInputFile(filename, inFASTA);
 
-               inFASTA.seekg(filePos->start);
+               inFASTA.seekg(filePos.start);
                
-               if (filePos->start == 0) { chimera->printHeader(out); }
+               if (filePos.start == 0) { chimera->printHeader(out); }
 
                bool done = false;
                int count = 0;
        
                while (!done) {
                
-                       if (m->control_pressed) {       out.close(); out2.close(); if (trim) { out3.close(); } inFASTA.close(); return 1;       }
+                       if (m->control_pressed) {       delete chimera; out.close(); out2.close(); if (trim) { out3.close(); } inFASTA.close(); return 1;       }
                
                        Sequence* candidateSeq = new Sequence(inFASTA);  m->gobble(inFASTA);
                        string candidateAligned = candidateSeq->getAligned();
@@ -1142,7 +1392,7 @@ int ChimeraSlayerCommand::driver(linePair* filePos, string outputFName, string f
                                        //find chimeras
                                        chimera->getChimeras(candidateSeq);
                                        
-                                       if (m->control_pressed) {       delete candidateSeq; return 1;  }
+                                       if (m->control_pressed) {       delete chimera; delete candidateSeq; return 1;  }
                                                
                                        //if you are not chimeric, then check each half
                                        data_results wholeResults = chimera->getResults();
@@ -1199,7 +1449,7 @@ int ChimeraSlayerCommand::driver(linePair* filePos, string outputFName, string f
                        
                        #if defined (__APPLE__) || (__MACH__) || (linux) || (__linux)
                                unsigned long long pos = inFASTA.tellg();
-                               if ((pos == -1) || (pos >= filePos->end)) { break; }
+                               if ((pos == -1) || (pos >= filePos.end)) { break; }
                        #else
                                if (inFASTA.eof()) { break; }
                        #endif
@@ -1211,12 +1461,18 @@ int ChimeraSlayerCommand::driver(linePair* filePos, string outputFName, string f
                //report progress
                if((count) % 100 != 0){ m->mothurOut("Processing sequence: " + toString(count)); m->mothurOutEndLine();         }
                
+               int numNoParents = chimera->getNumNoParents();
+               if (numNoParents == count) { m->mothurOut("[WARNING]: megablast returned 0 potential parents for all your sequences. This could be due to formatdb.exe not being setup properly, please check formatdb.log for errors."); m->mothurOutEndLine(); } 
+               
                out.close();
                out2.close();
                if (trim) { out3.close(); }
                inFASTA.close();
+               delete chimera;
                                
                return count;
+               
+               
        }
        catch(exception& e) {
                m->errorOut(e, "ChimeraSlayerCommand", "driver");
@@ -1225,15 +1481,27 @@ int ChimeraSlayerCommand::driver(linePair* filePos, string outputFName, string f
 }
 //**********************************************************************************************************************
 #ifdef USE_MPI
-int ChimeraSlayerCommand::driverMPI(int start, int num, MPI_File& inMPI, MPI_File& outMPI, MPI_File& outAccMPI, MPI_File& outFastaMPI, vector<unsigned long long>& MPIPos){
-       try {                           
+int ChimeraSlayerCommand::driverMPI(int start, int num, MPI_File& inMPI, MPI_File& outMPI, MPI_File& outAccMPI, MPI_File& outFastaMPI, vector<unsigned long long>& MPIPos, string filename, map<string, int>& priority, bool byGroup){
+       try {
                MPI_Status status; 
                int pid;
                MPI_Comm_rank(MPI_COMM_WORLD, &pid); //find out who we are
                
+               Chimera* chimera;
+               if (templatefile != "self") { //you want to run slayer with a reference template
+                       chimera = new ChimeraSlayer(filename, templatefile, trim, search, ksize, match, mismatch, window, divR, minSimilarity, minCoverage, minBS, minSNP, parents, iters, increment, numwanted, realign, blastlocation, rand());       
+               }else {
+                       chimera = new ChimeraSlayer(filename, templatefile, trim, priority, search, ksize, match, mismatch, window, divR, minSimilarity, minCoverage, minBS, minSNP, parents, iters, increment, numwanted, realign, blastlocation, rand(), byGroup);    
+               }
+               
+               if (m->control_pressed) { delete chimera; return 0; }
+               
+               if (chimera->getUnaligned()) { delete chimera; m->mothurOut("Your template sequences are different lengths, please correct."); m->mothurOutEndLine(); m->control_pressed = true; return 0; }
+               templateSeqsLength = chimera->getLength();
+               
                for(int i=0;i<num;i++){
                        
-                       if (m->control_pressed) {       return 1;       }
+                       if (m->control_pressed) {       delete chimera; return 1;       }
                        
                        //read next sequence
                        int length = MPIPos[start+i+1] - MPIPos[start+i];
@@ -1259,7 +1527,7 @@ int ChimeraSlayerCommand::driverMPI(int start, int num, MPI_File& inMPI, MPI_Fil
                                        //find chimeras
                                        chimera->getChimeras(candidateSeq);
                        
-                                       if (m->control_pressed) {       delete candidateSeq; return 1;  }
+                                       if (m->control_pressed) {       delete chimera; delete candidateSeq; return 1;  }
                                        
                                        //if you are not chimeric, then check each half
                                        data_results wholeResults = chimera->getResults();
@@ -1339,7 +1607,10 @@ int ChimeraSlayerCommand::driverMPI(int start, int num, MPI_File& inMPI, MPI_Fil
                //report progress
                if(num % 100 != 0){             cout << "Processing sequence: " << num << endl; m->mothurOutJustToLog("Processing sequence: " + toString(num) + "\n");  }
                
-                               
+               int numNoParents = chimera->getNumNoParents();
+               if (numNoParents == num) { cout << "[WARNING]: megablast returned 0 potential parents for all your sequences. This could be due to formatdb.exe not being setup properly, please check formatdb.log for errors." << endl; }
+               
+               delete chimera;         
                return 0;
        }
        catch(exception& e) {
@@ -1351,11 +1622,10 @@ int ChimeraSlayerCommand::driverMPI(int start, int num, MPI_File& inMPI, MPI_Fil
 
 /**************************************************************************************************/
 
-int ChimeraSlayerCommand::createProcesses(string outputFileName, string filename, string accnos, string fasta) {
+int ChimeraSlayerCommand::createProcesses(string outputFileName, string filename, string accnos, string fasta, map<string, int>& thisPriority) {
        try {
                int process = 0;
                int num = 0;
-               int numNoParents = 0;
                processIDS.clear();
                
 #if defined (__APPLE__) || (__MACH__) || (linux) || (__linux)
@@ -1367,13 +1637,13 @@ int ChimeraSlayerCommand::createProcesses(string outputFileName, string filename
                                processIDS.push_back(pid);  //create map from line number to pid so you can append files in correct order later
                                process++;
                        }else if (pid == 0){
-                               num = driver(lines[process], outputFileName + toString(getpid()) + ".temp", filename, accnos + toString(getpid()) + ".temp", fasta + toString(getpid()) + ".temp");
+                               num = driver(lines[process], outputFileName + toString(getpid()) + ".temp", filename, accnos + toString(getpid()) + ".temp", fasta + toString(getpid()) + ".temp", thisPriority);
                                
                                //pass numSeqs to parent
                                ofstream out;
                                string tempFile = outputFileName + toString(getpid()) + ".num.temp";
                                m->openOutputFile(tempFile, out);
-                               out << num << '\t' << chimera->getNumNoParents() << endl;
+                               out << num << endl;
                                out.close();
                                exit(0);
                        }else { 
@@ -1393,7 +1663,7 @@ int ChimeraSlayerCommand::createProcesses(string outputFileName, string filename
                        ifstream in;
                        string tempFile =  outputFileName + toString(processIDS[i]) + ".num.temp";
                        m->openInputFile(tempFile, in);
-                       if (!in.eof()) { int tempNum = 0; int tempNumParents = 0; in >> tempNum >> tempNumParents; num += tempNum; numNoParents += tempNumParents; }
+                       if (!in.eof()) { int tempNum = 0;  in >> tempNum; num += tempNum; }
                        in.close(); m->mothurRemove(tempFile);
                }
 #else
@@ -1410,7 +1680,7 @@ int ChimeraSlayerCommand::createProcesses(string outputFileName, string filename
                //Create processor worker threads.
                for( int i=0; i<processors; i++ ){
                        string extension = toString(i) + ".temp";
-                       slayerData* tempslayer = new slayerData((outputFileName + extension), (fasta + extension), (accnos + extension), filename, templatefile, search, blastlocation, trimera, trim, realign, m, lines[i]->start, lines[i]->end, ksize, match, mismatch, window, minSimilarity, minCoverage, minBS, minSNP, parents, iters, increment, numwanted, divR, priority, i);
+                       slayerData* tempslayer = new slayerData((outputFileName + extension), (fasta + extension), (accnos + extension), filename, templatefile, search, blastlocation, trimera, trim, realign, m, lines[i].start, lines[i].end, ksize, match, mismatch, window, minSimilarity, minCoverage, minBS, minSNP, parents, iters, increment, numwanted, divR, priority, i);
                        pDataArray.push_back(tempslayer);
                        processIDS.push_back(i);
                        
@@ -1425,12 +1695,10 @@ int ChimeraSlayerCommand::createProcesses(string outputFileName, string filename
                //Close all thread handles and free memory allocations.
                for(int i=0; i < pDataArray.size(); i++){
                        num += pDataArray[i]->count;
-                       numNoParents += pDataArray[i]->numNoParents;
                        CloseHandle(hThreadArray[i]);
                        delete pDataArray[i];
                }
 #endif 
-               if (num == numNoParents) {  m->mothurOut("[WARNING]: megablast returned 0 potential parents for all your sequences. This could be due to formatdb.exe not being setup properly, please check formatdb.log for errors."); m->mothurOutEndLine(); }
                
                rename((outputFileName + toString(processIDS[0]) + ".temp").c_str(), outputFileName.c_str());
                rename((accnos + toString(processIDS[0]) + ".temp").c_str(), accnos.c_str());