suggested
by Rich.
Thanks for propositions, and I'll write if I have new hints (it would require
some days to the runs to potentially freeze)
Ludovic
De : users
mailto:users-boun...@lists.open-mpi.org>> de
la part de Richard Graham mailto:
I just talked with George, who brought me up to speed on this particular
problem.
I would suggest a couple of things:
- Look at the HW error counters, and see if you have many retransmits.
This would indicate a potential issue with the particular HW in use, such as a
cable that is n
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Date: Fri, 16 Nov 2007 23:21:16 -0500
To:
Conversation: Follow up on the MPI Forum meeting
Subject: [mpi-21] Follow up on the MPI Forum meeting
Here is a brief summary of the meeting held at SC07 in
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Date: Fri, 12 Oct 2007 12:48:04 -0400
To: "mpi...@mpi-forum.org"
Conversation: SC'07 MPI Forum organization meeting
Subject: [mpi-21] SC'07 MPI
FYI.
Rich
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Date: Fri, 5 Oct 2007 03:55:27 -0400
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Subject: Re: Meeting at SC'07
I will have an agenda out in a week or so, so if people have specific items
, "Brian Barrett" wrote:
> On Sep 25, 2007, at 1:37 PM, Richard Graham wrote:
>
>> > Josh Hursey did the port of Open MPI to CNL. Here is the config
>> > line I have used to build
>> > on the Cray XT4:
>> >
>> > ./configure CC=/opt/xt-
Josh Hursey did the port of Open MPI to CNL. Here is the config line I have
used to build
on the Cray XT4:
./configure CC=/opt/xt-pe/default/bin/snos64/linux-pgcc
CXX=/opt/xt-pe/default/bin/snos64/linux-pgCC
F77=/opt/xt-pe/default/bin/snos64/linux-pgf90
FC=/opt/xt-pe/default/bin/snos64/linux-pgf
Tahir,
There are a variety of ways to create shared memory segments. I am not a
Fortran expert, but do believe this is something that needs to be done from
c/c++.
In Open MPI we use the mmap set of routines to create the shared memory
segments
we use.
Rich
On 5/28/07 10:21 PM, "Tahir Malas
There is nothing preventing you from creating your own shared memory segment
for use by your application. This does not impact the MPI implementation.
You need to make sure you take care of all the issues associated with
multiple procs/threads accessing the same cache lines, which can cause quite
