On 2/10/2013 1:14 AM, Siegmar Gross wrote:
I don't think the problem is related to Solaris. I think it's also on Linux.
E.g., I can reproduce the problem with 1.9a1r28035 on Linux using GCC compilers.
Siegmar: can you confirm this is a problem also on Linux? E.g.,
with OMPI 1.9, on one of your Linux nodes (linpc0?) try
% cat myrankfile
rank 0=linpc0 slot=0:1
% mpirun --report-bindings --rankfile myrankfile numactl --show
For me, the binding I get is not 0:1 but 0,1.
I get the following outputs for openmpi-1.6.4rc4 (without your patch)
Okay thanks, but 1.6 is not the issue here. There is something going on
in 1.9/trunk that is very different. Thanks for the 1.6 output, but
it's all right.
and openmpi-1.9 (both compiled with Sun C 5.12).
Thanks for the confirmation. You, too, are showing Linux demonstrating
this problem. It looks like bindings are wrong in 1.9. Ralph says he's
taking a look. The rankfile says "0:1", but you're getting "0,1".
linpc1 rankfiles 96 mpirun --report-bindings --rankfile rf_1_linux numactl
--show
[linpc1:16061] MCW rank 0 bound to socket 0[core 0[hwt 0]], socket 0[core 1[hwt
0]]: [B/B][./.]
physcpubind: 0 1
linpc1 rankfiles 97 ompi_info | grep "MPI:"
Open MPI: 1.9a1r28035
