Hi, I have one more question. I wanted to experiment with processor affinity command-line options on my ubuntu PC. When I use OpenMPI compiled from sourecs a few weeks ago, mpirun returns error messages. However, the"official" OpenMPI installation on the same machine makes no problem. Does it mean there's a bug in OpenMPI-current and I should report a bug?
======= 1. OpneMPI version: ==== mpirun -V mpirun (Open MPI) 1.9a1r26880 Report bugs to http://www.open-mpi.org/community/help/ ==== 2. mpirun "offending" command and error report: === zkoza@zbyszek:~$ mpirun -np 2 --bind-to-core -bycore --report-bindings uptime -------------------------------------------------------------------------- WARNING: a request was made to bind a process. While the system supports binding the process itself, at least one node does NOT support binding memory to the process location. Node: zbyszek This is a warning only; your job will continue, though performance may be degraded. -------------------------------------------------------------------------- -------------------------------------------------------------------------- mpirun was unable to find the specified executable file, and therefore did not launch the job. This error was first reported for process rank 0; it may have occurred for other processes as well. NOTE: A common cause for this error is misspelling a mpirun command line parameter option (remember that mpirun interprets the first unrecognized command line token as the executable). Node: zbyszek Executable: -bycore -------------------------------------------------------------------------- 2 total processes failed to start ==== 3. the same mpirun command using standard MPI installation ==== LD_LIBRARY_PATH=/usr/lib/openmpi /usr/bin/mpirun --path /usr/lib/openmpi -np 2 --bind-to-core -bycore --report-bindings uptime [zbyszek:03104] [[7637,0],0] odls:default:fork binding child [[7637,1],0] to cpus 0001 [zbyszek:03104] [[7637,0],0] odls:default:fork binding child [[7637,1],1] to cpus 0002 12:25:51 up 21:27, 1 user, load average: 0.00, 0.01, 0.05 12:25:51 up 21:27, 1 user, load average: 0.00, 0.01, 0.05 ==== 4. version of standard OpenMPI === zkoza@zbyszek:~$ LD_LIBRARY_PATH=/usr/lib/openmpi /usr/bin/mpirun --path /usr/lib/openmpi --version mpirun (Open MPI) 1.4.3 Z Koza
