changed int to pid_t type in fork(). roughed in get.mimarkscommand.

[mothur.git] / preclustercommand.cpp

diff --git a/preclustercommand.cpp b/preclustercommand.cpp
index fe722a669f2c0ca983c94ef21cc73dc95f5719bc..def53255b1c124c2d40ae76120723f78f47a7bec 100644 (file)
--- a/preclustercommand.cpp
+++ b/preclustercommand.cpp
@@ -369,28 +369,30 @@ int PreClusterCommand::createProcessesGroups(string newFName, string newNName, s
                
                //divide the groups between the processors
                vector<linePair> lines;
-               int numGroupsPerProcessor = groups.size() / processors;
-               for (int i = 0; i < processors; i++) {
-                       int startIndex =  i * numGroupsPerProcessor;
-                       int endIndex = (i+1) * numGroupsPerProcessor;
-                       if(i == (processors - 1)){      endIndex = groups.size();       }
-                       lines.push_back(linePair(startIndex, endIndex));
-               }
+               int remainingPairs = groups.size();
+        int startIndex = 0;
+        for (int remainingProcessors = processors; remainingProcessors > 0; remainingProcessors--) {
+            int numPairs = remainingPairs; //case for last processor
+            if (remainingProcessors != 1) { numPairs = ceil(remainingPairs / remainingProcessors); }
+            lines.push_back(linePair(startIndex, (startIndex+numPairs))); //startIndex, endIndex
+            startIndex = startIndex + numPairs;
+            remainingPairs = remainingPairs - numPairs;
+        }
                
 #if defined (__APPLE__) || (__MACH__) || (linux) || (__linux) || (__linux__) || (__unix__) || (__unix)         
                
                //loop through and create all the processes you want
                while (process != processors) {
-                       int pid = fork();
+                       pid_t 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){
                 outputNames.clear();
-                               num = driverGroups(newFName + toString(getpid()) + ".temp", newNName + toString(getpid()) + ".temp", newMFile, lines[process].start, lines[process].end, groups);
+                               num = driverGroups(newFName + m->mothurGetpid(process) + ".temp", newNName + m->mothurGetpid(process) + ".temp", newMFile, lines[process].start, lines[process].end, groups);
                 
-                string tempFile = toString(getpid()) + ".outputNames.temp";
+                string tempFile = m->mothurGetpid(process) + ".outputNames.temp";
                 ofstream outTemp;
                 m->openOutputFile(tempFile, outTemp);