Re: [OMPI users] Printing in a fortran MPI/OpenMP environment

On 2/1/23 00:50, Vahid Askarpour via users wrote: > Hi, > > I am running a fortran code (Perturbo) compiled in hybrid openmp/openmpi. The > code runs on 2 nodes (128 processors) with 32 MPI processes and 4 threads/MPI > process. I am attempting to verify that a variable involved in the > calcul

Re: [OMPI users] Problem with OpenMPI as Third pary library

Bundling OpenMPI may be problematic and give users more trouble than you save them as OpenMPI is very configurable and usually works best when adapted to the available communication hardware. You might consider asking users to install an MPI library and then install your software. For desktop/

Re: [OMPI users] Open MPI Java MPI bindings

A non-trivial application: https://github.com/ggomes/otm-mpi MVAPICH also has Java bindings: https://mvapich.cse.ohio-state.edu/userguide/mv2j/ On 8/10/22 06:10, Sheppard, Raymond W via users wrote: Hello, I had a user that wrote in having trouble with them maybe a year ago. They were buil

Re: [OMPI users] [EXTERNAL] Java Segentation Fault

Hi Janek, If you compile your program and produce a class file, does it run using mpirun -np 1 java matsim-p Try to compile OpenMPI from source as indicated at https://www-lb.open-mpi.org/faq/?category=java Java tends to require more memory, so if using a batch system be sure to request en

Re: [OMPI users] Using OSU benchmarks for checking Infiniband network

le precision = 16384*8bytes? Best Denis *From:* users on behalf of Benson Muite via users *Sent:* Tuesday, February 8, 2022 11:47:18 AM *To:* users@lists.open-mpi.org *Cc:* Benson Muite *Subject:* Re: [OMPI user

Re: [OMPI users] Using OSU benchmarks for checking Infiniband network

ng-paffinity-v1.4 <https://www.open-mpi.org/faq/?category=tuning#using-paffinity-v1.4> On Mon, Feb 7, 2022 at 11:01 AM Benson Muite via users mailto:users@lists.open-mpi.org>> wrote: Following https://www.open-mpi.org/doc/v3.1/man1/mpirun.1.php <https://www.open-mpi.org/do

Re: [OMPI users] Using OSU benchmarks for checking Infiniband network

crepancy at the message size of 16384. May be there is a way to run mpi in verbose mode in order to further investigate this behaviour? Best Denis -------- *From:* users on behalf of Benson Muite via users *Sent:* Monday, Febru

Re: [OMPI users] Using OSU benchmarks for checking Infiniband network

Hi, Do you get similar results when you repeat the test? Another job could have interfered with your run. Benson On 2/7/22 3:56 PM, Bertini, Denis Dr. via users wrote: Hi I am using OSU microbenchmarks compiled with openMPI 3.1.6 in order to check/benchmark the infiniband network for our cl

Re: [OMPI users] MPI Exit Code:1 on an OpenFoam application

Have you tried reinstalling OpenFOAM? If you are mostly working in a desktop, there are pre-compiled versions available: https://openfoam.com/download/ If you are using a pre-compiled version, do also consider reporting the error to the packager. It seems unlikely to be an MPI error, more likel

[OMPI users] OpenMPI in cloud environments

When using OpenMPI with Omni-Compiler (https://github.com/omni-compiler/omni-compiler ), one gets errors when trying to run in a cloud environment because Open MPI "greedily uses up all IP addresses". Many cloud environments will offer a number of interfaces. While the documentation on this is

Re: [OMPI users] MPI is still dominantparadigm?

On 8/8/20 1:19 PM, Jeff Squyres (jsquyres) via users wrote: On Aug 7, 2020, at 12:52 PM, Oddo Da via users > wrote: The Java bindings support "recent" JDK, and if you face an issue, please report a bug (either here or on github) Starting with Java 8, th

Re: [OMPI users] Moving an installation

On 7/24/20 7:55 PM, Lana Deere via users wrote: I have open-mpi 4.0.4 installed on my desktop and my small test programs are working. I would like to migrate the open-mpi to a cluster and run a larger program there.  When moved, the open-mpi installation is in a different pathname than it was

Re: [OMPI users] Slow collective MPI File IO

If possible, consider changing to a non-blocking write using MPI_FILE_WRITE_ALL_BEGIN so that if possible, work can continue while the file is being written to disk. You may need to make a copy of the data being written if the space will be used for another purpose while the data is being writt

Re: [OMPI users] Latencies of atomic operations on high-performance networks

Hi, Have you tried anything with OpenMPI 4.0.1? What are the specifications of the Infiniband system you are using? Benson On 5/9/19 9:37 AM, Joseph Schuchart via users wrote: Nathan, Over the last couple of weeks I made some more interesting observations regarding the latencies of accumula

[OMPI users] Open MPI tuning

Hi, MVAPICH seems to have tuning option suggestions for various software using it at: http://mvapich.cse.ohio-state.edu/best_practices/ Would this be something that should be emulated for OpenMPI? Regards, Benson ___ users mailing list users@lists.open