Okay, I'll look into it. I suspect the problem is due to the
redefinition of the paffinity API to clarify physical vs logical
processors - more than likely, the maffinity interface suffers from
the same problem we had to correct over there.
We'll report back later with an estimate of how quickly this can be
fixed.
Thanks
Ralph
On Aug 22, 2008, at 7:03 AM, Camille Coti wrote:
Ralph,
I compiled a clean checkout from the trunk (r19392), the problem is
still the same.
Camille
Ralph Castain a écrit :
Hi Camille
What OMPI version are you using? We just changed the paffinity
module last night, but did nothing to maffinity. However, it is
possible that the maffinity framework makes some calls into
paffinity that need to adjust.
So version number would help a great deal in this case.
Thanks
Ralph
On Aug 22, 2008, at 5:23 AM, Camille Coti wrote:
Hello,
I am trying to run applications on a shared-memory machine. For
the moment I am just trying to run tests on point-to-point
communications (a trivial token ring) and collective operations
(from the SkaMPI tests suite).
It runs smoothly if mpi_paffinity_alone is set to 0. For a number
of processes which is larger than about 10, global communications
just don't seem possible. Point-to-point communications seem to be
OK.
But when I specify --mca mpi_paffinity_alone 1 in my command
line, I get the following error:
mbind: Invalid argument
I looked into the code of maffinity/libnuma, and found out the
error comes from
numa_setlocal_memory(segments[i].mbs_start_addr,
segments[i].mbs_len);
in maffinity_libnuma_module.c.
The machine I am using is a Linux box running a 2.6.5-7 kernel.
Has anyone experienced a similar problem?
Camille
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