Hi all, I have problems with the openmpi-default-hostfile since the following patch on the trunk
changeset: 19874:088fc6c84a9f user: rhc date: Wed Feb 01 17:40:44 2012 +0000 summary: In accordance with prior releases, we are supposed to default to looking at the openmpi-default-hostfile as a default hostfile. Restore that behavior, but ignore the file if it is empty. Allow the user to ignore any MCA param setting pointing to a default hostfile by setting the param to "none" (via cmd line or whatever) - this allows them to override a setting in the system default MCA param file. According to the summary of this patch, the openmpi-default-hostfile is ignored if it is empty. But, when I run my jobs with slurm + mpirun, I get the following message: -------------------------------------------------------------------------- No nodes are available for this job, either due to a failure to allocate nodes to the job, or allocated nodes being marked as unavailable (e.g., down, rebooting, or a process attempting to be relocated to another node when none are available). -------------------------------------------------------------------------- I am able to run my job if: - either I put my node(s) in the file etc/openmpi-default-hostfile - or use "-mca orte_default_hostfile=none" in the mpirun command line - or "export OMPI_MCA_orte_default_hostfile none" in my environment It appears that an empty openmpi-default-hostfile is not ignored. This patch seems not be complete Or do I misunderstand something ? Pascal Devèze
