I’m running into a little problem and require some assistance. I would like to run gprof on some OpenMP and MPI hybrid code as a part of my testing. I understand that Gprof relies on a binary file which is created when you compile GCC (or mpicc) with a -pg switch.
I have tried adding this switch and my compiling succeeds (as in no errors are reported), however, the binary file is not created, but the executable is created as normal. I have also tried doing this on much simpler code, which uses pthreads, with the same result.
Please examine the below and let me hear your thoughts.
gcc -pg --std=gnu99 -pthread -Wall -o pthreadsv0 pthreads.c
GCC compiling with -pg doesn’t produce binary needed for Gprof.
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