Doing special files on NFS can be weird, try the other /tmp/ locations: /var/tmp/ /dev/shm (ram disk careful!)
Brock Palen www.umich.edu/~brockp CAEN Advanced Computing XSEDE Campus Champion bro...@umich.edu (734)936-1985 > On Oct 21, 2014, at 10:18 PM, Vinson Leung <lwhvinson1...@gmail.com> wrote: > > Because of permission reason (OpenMPI can not write temporary file to the > default /tmp directory), I change the TMPDIR to my local directory (export > TMPDIR=/home/user/tmp ) and then the MPI program can run. But the CPU > utilization is very low under 20% (8 MPI rank running in Intel Xeon 8-core > CPU). > > And I also got some message when I run with OpenMPI: > [cn3:28072] 9 more processes have sent help message help-opal-shmem-mmap.txt > / mmap on nfs > [cn3:28072] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help > / error messages > > Any idea? > Thanks > > VIncent > _______________________________________________ > users mailing list > us...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users > Link to this post: > http://www.open-mpi.org/community/lists/users/2014/10/25548.php
