Hi, I've been using open-mpi in Solaris for a while and now I need to use open-mpi in AIX.
I compiled the latest stable open-mpi version and run one of the simplest possible tests (see hello0.c in attached zip) To my surprise, it didn't show anything to the screen when running with mpirun: mainaix:/xahome/userx> ./hello0 Process 0 of 1 is on ecc1ap04 Process 0 says Hello Word! mainaix:/xahome/userx > mpirun -n 4 hello0 mainaix:/xahome/userx > I also tried with stderr instead of stdout and I got the same result. Now, if I open a file and stream the output to the file (I just used one file per process, I didn't use mpi-io), it works! Any ideas about the reason of this behavior? Thanks Sergio <<stdout.tar.gz>>
stdout.tar.gz
Description: stdout.tar.gz