Hi Nathan, You gave me a hit, thanks!
I applied your patches and added "-mca btl_openib_flags 311" to the mpirun option, then it worked for me. [mishima@manage OMB-3.1.1-openmpi2.0.0]$ mpirun -np 2 -mca btl_openib_flags 311 -bind-to core -report-bindings osu_bw [manage.cluster:21733] MCW rank 0 bound to socket 0[core 0[hwt 0]]: [B/././././.][./././././.] [manage.cluster:21733] MCW rank 1 bound to socket 0[core 1[hwt 0]]: [./B/./././.][./././././.] # OSU MPI Bandwidth Test v3.1.1 # Size Bandwidth (MB/s) 1 1.65 2 3.49 4 7.04 8 14.46 16 28.36 32 56.22 64 99.51 128 164.30 256 279.30 512 497.09 1024 884.19 2048 1409.68 4096 1774.12 8192 2517.35 16384 3445.86 32768 3993.43 65536 3952.04 131072 3960.81 262144 3915.02 524288 3829.10 1048576 3726.22 2097152 3547.74 4194304 3451.69 Regards, Tetsuya Mishima > sm is deprecated in 2.0.0 and will likely be removed in favor of vader in 2.1.0. > > This issue is probably this known issue: https://github.com/open-mpi/ompi-release/pull/1250 > > Please apply those commits and see if it fixes the issue for you. > > -Nathan _______________________________________________ devel mailing list devel@lists.open-mpi.org https://rfd.newmexicoconsortium.org/mailman/listinfo/devel