On Mon, 2014-11-17 at 17:31 +, Dave Love wrote:
> I discovered from looking at the mpiP profiler that OMPI always uses
> gettimeofday rather than clock_gettime to implement mpi_wtime on
> GNU/Linux, and that looks sub-optimal.
It can be very expensive in practice, especially for codes that ha
arcus
-Original Message-
From: Jeff Squyres (jsquyres) [mailto:jsquy...@cisco.com]
Sent: Wednesday, August 13, 2014 10:00 AM
To: Open MPI User's List
Cc: Daniels, Marcus G
Subject: Re: [OMPI users] GCC 4.9 and MPI_F08?
Marcus --
The fix was applied yesterday to the v1.8 branch. Would you mi
Hi Jeff,
On Tue, 2014-08-12 at 16:18 +, Jeff Squyres (jsquyres) wrote:
> Can you send the output from configure, the config.log file, and the
> ompi_config.h file?
Attached. configure.log comes from
(./configure --prefix=/usr/projects/eap/tools/openmpi/1.8.2rc3 2>&1) >
configure.log
Seem
On Tue, 2014-08-12 at 15:50 +, Jeff Squyres (jsquyres) wrote:
> It should be in the 1.8.2rc tarball (i.e., to be included in the
> soon-to-be-released 1.8.2).
>
> Want to give it a whirl before release to let us know if it works for you?
>
> http://www.open-mpi.org/software/ompi/v1.8/
>
Hi,
Looks like there is not the check yet for "GCC$ ATTRIBUTES NO_ARG_CHECK"
-- a prerequisite for activating mpi_f08. Could it be added?
https://bitbucket.org/jsquyres/mpi3-fortran/commits/243ffae9f63ffc8fcdfdc604796ef290963ea1c4
Marcus
From: Clay Kirkland [mailto:clay.kirkl...@versityinc.com]
Sent: Friday, May 02, 2014 03:24 PM
To: us...@open-mpi.org
Subject: [OMPI users] MPI_Barrier hangs on second attempt but only when
multiple hosts used.
I have been using MPI for many many years so I have very well debugged mpi
tests.
The Intel MPI implementation does this. The performance between the
accelerators and the host is poor though. About 20mb/sec in my ping/pong
test. Intra-MIC communication is about a 1GB/sec whereas intra-host is about
6GB/sec. Latency is higher (i.e. worse) for the intra-MIC communication
Also, with regard to your subject line, there are a wide variety of options for
connecting to data.
Everything from `redis' (http://redis.io/,
http://cran.r-project.org/web/packages/rredis/index.html)
to HDF5 (http://cran.r-project.org/web/packages/hdf5/index.html),
to memory mapped files
(h
On Feb 26, 2013, at 12:17 PM, Ralph Castain wrote:
> I have someone who is interested in knowing if anyone is currently working
> with pbdR:
>
It looks to me like an evolution of the capabilities in the `snow' wrapper of
`Rmpi', but the addition of the BLACS/PBLAS/ScaLAPACK interfaces data st
On Jun 15, 2012, at 8:02 AM, Jeff Squyres wrote:
> Were there any clues in /var/log/messages or dmesg?
>
Thanks. I found a suggestion from Nathan Hjelm to add "options mlx4_core
log_mtts_per_seg=X" (where X is 5 in my case).
Offline suggestions (which also included that) were also add "--mc
Hi,
Is there anything I can do about this? I don't have any locked memory limits.
Thanks,
Marcus
Creating ensight file: EnSight6.geo01 elapsed secs= 6.84
--
The OpenFabrics (openib) BTL failed to register memory
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