I have intel Parallel studio XE cluster edition 2015 on my 10 Node server connected with infiniband band. I wrote my code in C. My code consists of system commands with sprintf command like below:
printf("started \n");
system("cp metis_input.txt $HOME/metis-4.0/.");
sprintf(filename,"$HOME/metis-4.0/./partdmesh metis_input.txt %d",size-1);
system(filename);
sprintf(filename,"mv metis_input.txt.npart.%d nodes_proc.txt",size-1);
system(filename);
printf("completed \n");
When I compile my code and run it without any opmization flags it runs smoothly but when I compile my code with "mpiicc -O" the above lines dont even seem to be executed. I think that the above lines are being skipped. Only the printf's are executed. Do I need to add anything extra in my code (like including any headers) to get these system commands runnning for INTEL mpi compiler with -O ?
