When running jobs with XC Version 3.2, OFED InfiniBand, and
HP-MPI Version 2.2.5.1 the following messages are printed once for
each rank:
libibverbs: Warning: fork()-safety requested but init failed |
HP-MPI Version 2.2.5.1 has support for fork() using OFED 1.2, but only for kernels more recent than version 2.6.12.
HP XC Version 3.2 is currently based on kernel version 2.6.9. This
message is a reminder that fork() is not supported
in this release.
You can suppress this message by defining the MPI_IBV_NO_FORK_SAFE environment variable, as follows:
% /opt/hpmpi/bin/mpirun -np 4 -prot -e MPI_IBV_NO_FORK_SAFE=1 -hostlist nodea,nodeb,nodec,noded /my/dir/hello_world |
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