X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=validparameter.cpp;fp=validparameter.cpp;h=2d29ee3f668ee1817cb71c82189c2a8c6f61cf00;hb=fdc1f6eaf544f695fc1511f24bddd7e6069c33ba;hp=0c32a3e1c7b00e9fa90c8a5e4ca7fb759238c9e2;hpb=aba5f8811829037b0a3004ef33f0ad4ed5e5fcf8;p=mothur.git

diff --git a/validparameter.cpp b/validparameter.cpp
index 0c32a3e..2d29ee3 100644
--- a/validparameter.cpp
+++ b/validparameter.cpp
@@ -207,11 +207,23 @@ string ValidParameters::validFile(map<string, string> container, string paramete
 		if(it != container.end()){ //no parameter given
 
 			if(isFile == true) {
+			
+			#ifdef USE_MPI	
+				int pid;
+				MPI_Comm_rank(MPI_COMM_WORLD, &pid); //find out who we are
+				
+				if (pid == 0) {
+			#endif
 
 				ableToOpen = openInputFile(it->second, in);
 
 				if (ableToOpen == 1) { return "not open"; }
 				in.close();
+				
+			#ifdef USE_MPI	
+				}
+			#endif
+
 			}
 		}else { return "not found"; }