: users-boun...@open-mpi.org [mailto:users-boun...@open-mpi.org] On Behalf
Of Price, Brian M (N-KCI)
Sent: Wednesday, December 01, 2010 11:29 AM
To: Open MPI Users
Cc: Stern, Craig J
Subject: EXTERNAL: [OMPI users] Open MPI vs IBM MPI performance help
OpenMPI version: 1.4.3
Platform: IBM P5, 32
OpenMPI version: 1.4.3
Platform: IBM P5, 32 processors, 256 GB memory, Symmetric Multi-Threading (SMT)
enabled
Application: starts up 48 processes and does MPI using MPI_Barrier, MPI_Get,
MPI_Put (lots of transfers, large amounts of data)
Issue: When implemented using Open MPI vs. IBM's MPI
To: Open MPI Users
Subject: EXTERNAL: Re: [OMPI users] Creating 64-bit objects?
How are you specifying these flags? Are you setting them as environment
variables, or are you adding them to the configure command line?
Can you show us the exact commands you used?
Prentice
Price, Brian M (N-KCI
and has been fixed in the latest release (2.2.8).
More details are available here -
http://www.open-mpi.org/community/lists/devel/2010/10/8606.php
Regards
--Nysal
On Wed, Nov 10, 2010 at 1:04 AM, Price, Brian M (N-KCI)
<brian.m.pr...@lmco.com<mailto:brian.m.pr...@lmco.com>> wrote:
Ope
OpenMPI version: 1.3.3 & 1.4.3
Platform: IBM P5
Issue: I want OpenMPI to support some existing 64-bit FORTRAN software, but I
can't seem to get 64-bit objects from OpenMPI without some modification to the
Makefile in ompi/mpi/f90.
I can configure, build, and install just fine with the following
All,
Is there a simple way (environment variable or flag) to separate the output of
each of my MPI processes into separate log files?
Thanks.
Brian Price
and my test
program so that this test would work correctly?
Thanks.
-Original Message-
From: Jed Brown [mailto:five...@gmail.com] On Behalf Of Jed Brown
Sent: Wednesday, July 07, 2010 3:08 PM
To: Price, Brian M (N-KCI); Open MPI Users
Subject: Re: [OMPI users] EXTERNAL: Re: MPI_GET beyond 2
Squyres
Sent: Wednesday, July 07, 2010 10:39 AM
To: Open MPI Users
Subject: EXTERNAL: Re: [OMPI users] MPI_GET beyond 2 GB displacement
Sorry for the delay in replying. :-(
It's because for a 32 bit signed int, at 2GB, the value turns negative.
On Jun 29, 2010, at 1:46 PM, Price, Brian M (N
OpenMPI version: 1.3.3
Platform: IBM P5
Built OpenMPI 64-bit (i.e., CFLAGS=-q64, CXXFLAGS=-q64, -FFLAGS=-q64,
-FCFLAGS=-q64)
FORTRAN 90 test program:
- Create a large array (3.6 GB of 32-bit INTs)
- Initialize MPI
- Create a large window to encompass large array
OpenMPI version: 1.3.3
Platform: IBM P5
Built OpenMPI 64-bit (i.e., CFLAGS=-q64, CXXFLAGS=-q64, -FFLAGS=-q64,
-FCFLAGS=-q64)
FORTRAN 90 test program:
- Create a large array (3.6 GB of 32-bit INTs)
- Initialize MPI
- Create a large window to encompass large array
OpenMPI version: 1.3.3
Platform: IBM P5
If I configure with just the --prefix option for where to install, and then run
"make all install", I get an "mpi.mod" file in the "lib" directory of the
prefix directory I specified. ALL GOOD!
When I add compiler options to the configure script (e.g.
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