Re: [OMPI users] Searching the FAQ

On Jan 25, 2010, at 5:38 PM, Gus Correa wrote: > A) Keep the FAQ, please! No worries -- I am not asking about removing the FAQ. I was more asking if people wanted the *form* of the FAQ would be useful in a different form. > B) Add an "ALL FAQ" category, to make keyword search easier > on web

[OMPI users] Can I start MPI_Spawn child processes early?

Hi All, I am trying to use MPI for scientific High Performance (hpc) applications. I use MPI_Spawn to create child processes. Is there a way to start child processes early than the parent process, using MPI_Spawn? I want this because, my experiments showed that the time to spawn the

Re: [OMPI users] ABI stabilization/versioning

On Mon, 25 Jan 2010 15:10:12 -0500, Jeff Squyres wrote: > Indeed. Our wrapper compilers currently explicitly list all 3 > libraries (-lmpi -lopen-rte -lopen-pal) because we don't know if those > libraries will be static or shared at link time. I am suggesting that it is

Re: [OMPI users] checkpointing multi node and multi process applications

Actually, let me roll that back a bit. I was preparing a custom patch for the v1.4 series, and it seems that the code does not have the bug I mentioned. It is only the v1.5 and trunk that were effected by this. The v1.4 series should be fine. I will still ask that the error message fix be

Re: [OMPI users] checkpointing multi node and multi process applications

So while working on the error message, I noticed that the global coordinator was using the wrong path to investigate the checkpoint metadata. This particular section of code is not often used (which is probably why I could not reproduce). I just committed a fix to the Open MPI development

Re: [OMPI users] [ompi-1.4.1] compiling without openib, running with openib + ompi141 and gcc3

On Jan 25, 2010, at 11:58 AM, Mathieu Gontier wrote: > I built OpenMPI-1.4.1 without openib support with the following configuration > options: > > ./configure > --prefix=/develop/libs/OpenMPI/openmpi-1.4.1/LINUX_GCC_4_1_tcp_mach > --enable-static --enable-shared --enable-cxx-exceptions

Re: [OMPI users] Problems building Open MPI 1.4.1 with Pathscale

1 - Do you have problems with openmpi 1.4 too? (I don't, haven't built 1.4.1 yet) 2 - There is a bug in the pathscale compiler with -fPIC and -g that generates incorrect dwarf2 data so debuggers get really confused and will have BIG problems debugging the code. I'm chasing them to get a fix... 3 -

Re: [OMPI users] ABI stabilization/versioning

On Jan 25, 2010, at 12:55 PM, Jed Brown wrote: > > The short version is that the possibility of static linking really > > fouls up the scheme, and we haven't figured out a good way around this > > yet. :-( > > So pkg-config addresses this with it's Libs.private field and an > explicit

Re: [OMPI users] Problems building Open MPI 1.4.1 with Pathscale

I'm afraid I don't have any clues offhand. We *have* had problems with the Pathscale compiler in the past that were never resolved by their support crew. However, they were of the "variables weren't initialized and the process generally aborts" kind of failure, not a "persistent hang" kind of

Re: [hwloc-users] hwloc 0.9.3 not showing opt275 caches correctly?

yes they all show up as 1024K cat /sys/devices/system/cpu/cpu*/cache/index*/size 1024K 1024K 1024K 1024K 1024K 1024K 1024K 1024K 1024K 1024K 1024K 1024K Thanks for the input. Brock Palen www.umich.edu/~brockp Center for Advanced Computing bro...@umich.edu (734)936-1985 On Jan 23, 2010, at

Re: [OMPI users] ABI stabilization/versioning

On Mon, 25 Jan 2010 09:09:47 -0500, Jeff Squyres wrote: > The short version is that the possibility of static linking really > fouls up the scheme, and we haven't figured out a good way around this > yet. :-( So pkg-config addresses this with it's Libs.private field and an

[OMPI users] Searching the FAQ

I have some simple questions for all you users out there about the OMPI FAQ. I ask because we see a LOT of you end up on the OMPI FAQ in our web statistics (most users who search either end up on the FAQ and/or on the web archives of the mailing list). Hence, I'd like to know if we can

Re: [OMPI users] checkpointing multi node and multi process applications

I am not able to reproduce this problem with the 1.4 branch using a hostfile, and node configuration like you mentioned. I suspect that the error is caused by a failed local checkpoint. The error message is triggered when the global coordinator (located in 'mpirun') tries to read the

[OMPI users] [ompi-1.4.1] compiling without openib, running with openib + ompi141 and gcc3

Hello, I built OpenMPI-1.4.1 without openib support with the following configuration options: ./configure --prefix=/develop/libs/OpenMPI/openmpi-1.4.1/LINUX_GCC_4_1_tcp_mach --enable-static --enable-shared --enable-cxx-exceptions --enable-mpi-f77 --disable-mpi-f90 --enable-mpi-cxx

Re: [OMPI users] Checkpoint/Restart error

I tested the 1.4.1 release, and everything worked fine for me (tested a few different configurations of nodes/environments). The ompi-checkpoint error you cited is usually caused by one of two things: - The PID specified is wrong (which I don't think that is the case here) - The session

Re: [OMPI users] Windows CMake build problems ... (cont.)

Yes, it might be necessary. Done in r22473. Thanks, Shiqing Jeff Squyres wrote: Should this kind of info be added to README.windows? On Jan 25, 2010, at 4:34 AM, wrote: Thanks, that second part about the wrappers was

Re: [OMPI users] ABI stabilization/versioning

On Jan 25, 2010, at 7:11 AM, Dave Love wrote: > What's the status of (stabilizing and?) versioning libraries? If I > recall correctly, it was supposed to be defined as fixed for some > release period as of 1.3.something. Correct. We started with 1.3.2 or 1.3.3, IIRC...? I'd have to go back

Re: [OMPI users] Windows CMake build problems ... (cont.)

Should this kind of info be added to README.windows? On Jan 25, 2010, at 4:34 AM, wrote: > Thanks, that second part about the wrappers was what I was looking for. > > Charlie ... > > Original Message >

Re: [OMPI users] ABI stabilization/versioning

Am Montag, den 25.01.2010, 12:11 + schrieb Dave Love: > I assumed that the libraries would then be versioned (at least for ELF > -- I don't know about other formats) and we could remove a major source > of grief from dynamically linking against the wrong thing, and I think > Jeff said that

[OMPI users] Problems building Open MPI 1.4.1 with Pathscale

Hello: I'm having some issues with Open MPI 1.4.1 and Pathscale compiler (version 3.2). Open MPI builds successfully with the following configure arguments: ./configure --with-openib=/usr --with-openib-libdir=/usr/lib64 --with-sge --enable-static CC=pathcc CXX=pathCC F77=pathf90 F90=pathf90

[OMPI users] ABI stabilization/versioning

What's the status of (stabilizing and?) versioning libraries? If I recall correctly, it was supposed to be defined as fixed for some release period as of 1.3.something. I assumed that the libraries would then be versioned (at least for ELF -- I don't know about other formats) and we could remove

Re: [OMPI users] Checkpoint/Restart error

So? anyone? any clue? Summarize: - installed OpenMPI 1.4.1 on fresh Centos 5 - mpirun works but ompi-checkpoint throws this error: ORTE_ERROR_LOG: Not found in file orte-checkpoint.c at line 405 - on another VM I have OpenMPI 1.3.3. installed. Checkpointing works fine on guest but has the

Re: [OMPI users] Windows CMake build problems ... (cont.)

Thanks, that second part about the wrappers was what I was looking for.   Charlie ...    Original Message Subject: Re: [OMPI users] Windows CMake build problems ... (cont.)From: Shiqing Fan Date: Mon, January 25, 2010 2:09 amTo: cjohn...@valverdecomputing.comCc:

Re: [OMPI users] Windows CMake build problems ... (cont.)

Hi Charlie, Actually, to compile and link your application with Open MPI on Windows is similar as on Linux. You have to link your application against the generated Open MPI libraries, e.g. libopen-mpi.lib (don't forget the suffix 'd' if you build debug version of the OMPI libraries, e.g.

Re: [OMPI users] Windows CMake build problems ... (cont.)

OK, so I'm a little farther on and perplexed.   As I said, Visual C++ 2005 (release 8.0.50727.867) build of OpenMPI 1.4, using CMake 2.6.4, built everything and it all linked.   Went ahead and built the PACKAGE item in the OpenMPI.sln project, which made a zip file and an installer (although it