Hi, I have one more problem with process bindings (both machines use Solaris 10 with Sparc processors).
tyr hello_1 149 which mpicc /usr/local/openmpi-1.7.4_64_cc/bin/mpicc tyr hello_1 150 mpicc environ_mpi.c tyr hello_1 151 mpiexec -np 2 --host rs1 a.out tyr hello_1 152 Do you have any ideas about the reason, why I don't get any output? I have no problem with openmpi-1.6.5 as you can see below. tyr hello_1 107 which mpicc /usr/local/openmpi-1.6.5_64_cc/bin/mpicc tyr hello_1 108 mpicc environ_mpi.c tyr hello_1 109 mpiexec -np 2 --host rs1 a.out Now 1 slave tasks are sending their environment. Environment from task 1: message type: 3 msg length: 3655 characters message: hostname: rs1.informatik.hs-fulda.de operating system: SunOS release: 5.10 processor: sun4u PATH ... Thank you very much for any help in advance. Kind regards Siegmar