Re: [OMPI users] Shared Windows and MPI_Accumulate

Hello Joseph, I'm still unable to reproduce this system on my SLES12 x86_64 node. Are you building with CFLAGS=-O3? If so, could you build without CFLAGS set and see if you still see the failure? Howard 2017-03-02 2:34 GMT-07:00 Joseph Schuchart : > Hi Howard, > > Thanks

Re: [OMPI users] Using mpicc to cross-compile MPI applications

Hi Gilles, Thanks for the quick response. I tried your suggestion of setting the --enable-script-wrapper-compilers option to configure and ran into the following bug (as I am on version 1.10.2): https://www.mail-archive.com/users@lists.open-mpi.org/msg30166.html I applied the patch found in

Re: [OMPI users] Is building with "--enable-mpi-thread-multiple" recommended?

On Fri, 3 Mar 2017, Paul Kapinos wrote: ... Note that on 1.10.x series (even on 1.10.6), enabling of MPI_THREAD_MULTIPLE in lead to (silent) shutdown of the InfiniBand fabric for that application => SLOW! 2.x versions (tested: 2.0.1) handle MPI_THREAD_MULTIPLE on InfiniBand the right way up,

Re: [OMPI users] Is building with "--enable-mpi-thread-multiple" recommended?

Hi Mark, On 02/18/17 09:14, Mark Dixon wrote: On Fri, 17 Feb 2017, r...@open-mpi.org wrote: Depends on the version, but if you are using something in the v2.x range, you should be okay with just one installed version How good is MPI_THREAD_MULTIPLE support these days and how far up the

Re: [OMPI users] Is building with "--enable-mpi-thread-multiple" recommended?

Hi, On 03/03/17 12:41, Mark Dixon wrote: Your 20% memory bandwidth performance hit on 2.x and the OPA problem are concerning - will look at that. Are there tickets open for them? OPA performance issue on CP2K (15x slowdown) :

[OMPI users] sharedfp/lockedfile collision between multiple program instances

Hi, We just got hit by a problem with sharedfp/lockedfile component under v2.0.1 (should be identical with v2.0.2). We had 2 instances of an MPI program running conccurrently on the same input file and using MPI_File_read_shared() function ... If the shared file pointer is maintained with the

Re: [OMPI users] sharedfp/lockedfile collision between multiple program instances

Hi Edgar Please open an issue too so we can track the fix. Howard Edgar Gabriel schrieb am Fr. 3. März 2017 um 07:45: > Nicolas, > > thank you for the bug report, I can confirm the behavior. I will work on > a patch and will try to get that into the next release,

Re: [OMPI users] sharedfp/lockedfile collision between multiple program instances

Nicolas, thank you for the bug report, I can confirm the behavior. I will work on a patch and will try to get that into the next release, should hopefully not be too complicated. Thanks Edgar On 3/3/2017 7:36 AM, Nicolas Joly wrote: Hi, We just got hit by a problem with

Re: [OMPI users] sharedfp/lockedfile collision between multiple program instances

done. I added 2.0.3 as the milestone, since I am not sure what the timeline for 2.1.0 is. I will try to get the fix in over the weekened, and we can go from there. Tanks Edga On 3/3/2017 9:00 AM, Howard Pritchard wrote: Hi Edgar Please open an issue too so we can track the fix. Howard