open-mpi / ompi

Open MPI main development repository

https://www.open-mpi.org

open-mpi/ompi Issues

Warnings in oshmem
Updated 19 days ago2
mpirun V5.0.3 hangs running hello_world in two nodes
Updated 20 days ago13
Reduce collectives latency by reusing temporary buffers
Updated 21 days ago
lower coll accelerator priority
Updated 21 days ago
Improve documentation of the `coll tuned` component
Updated 21 days ago
Reduce_local Segmentation fault when Running with IMB-MPI1 built for GPU
Closed 21 days ago3
cannot MPI_File_open a one-character filename, deletes external file anyways
Updated 21 days ago4
mpirun nccl-test hang
Updated 21 days ago1
OpenMPI/5.0.3 with PMIx/4.2.7 compilation error
Closed 2 months ago4
PMIX_ERROR when MPI_Comm_spawn in multiple nodes
Updated 22 days ago12
fortran .mod files installed in libdir instead of includedir
Updated 24 days ago34
Discrepancy between 'oshcc' compiler wrapper and corresponding pkg-config files "oshmem-c.pc" and "oshmem.pc"
Updated 24 days ago
5.0.3: hostfile help file is misnamed
Closed a month ago3
Remove script wrappers in v6.0.x
Updated a month ago3
Issues running OpenMPI 5.0.3
Closed a month ago4
pkgconfig files not installed with `--enable-script-wrapper-compilers`
Updated a month ago3
ImportError: libopen-pal.so.80: cannot open shared object file: No such file or directory
Updated a month ago3
open mpi issue with orca on Mac M1 pro
Updated a month ago2
mpirun 5.0.3 has bug on parse shell args while 4.1.6 works well.
Updated a month ago12
DVM environment variable?
Updated a month ago3
Error while building from source openmpi 5.0.3
Updated a month ago1
Configure --with-tm=/opt/pbs/ with PBS Professional fails with openmpi-5.0.3, succeeds with openmpi-4.1.4
Closed a month ago10
when i run mpi program using ASAN, asan reports some memory leaks
Updated a month ago1
Fflush(stdout) doesn't work as expected.
Updated a month ago6
Fault tolerant error when re spawn process in mpiexec in remote node
Updated a month ago
coll tuned alltoall algorithm ignored after initialization
Updated a month ago
Error when using MPI_Comm_spawn with ULFM enabled
Updated a month ago6
coll_tuned_dynamic_rules_filename option no way to set alltoall_algorithm_max_requests from the rules file
Updated a month ago
MPI_Status_f082f not part of the mpi_f08 interface
Closed a month ago13
Mystery error on exit
Closed a month ago4
Build fail on Mac M3 with macOS clang 15
Closed a month ago1
dead coll tuned alltoall mca parameters
Updated a month ago8
Use OMPI without LSF integration on LSF
Closed 2 months ago14
coll_tuned_use_dynamic_rules wrong scoping for tools interface
Updated a month ago
libmpi.so is linked with the wrong libopen-pal.so
Updated a month ago
small array of derived data type(in Fortran) can be sent by MPI_Isend and MPI_Irecv but it ran into errors when I augment the array
Updated 2 months ago4
Connections to nodes are closed after 30 minutes.
Closed 2 months ago8
No output on GPU nodes, not sure where to start. Version 5.0.3
Closed 2 months ago3
Stuck in third send or recv when connecting two independent mpi applications with MPI_Comm_connect and MPI_Comm_accept with prte
Closed 2 months ago5
when i run mpi
Closed 2 months ago
Base Allreduce Algorithm Selection/Performance Issue
Closed 2 months ago3
Is UCX working with MPI-Sessions?
Updated 2 months ago4
--hostfile option not working as expected
Closed 2 months ago4
Slurm "run" is failing to find "munge" component when run with "container-name"
Closed 2 months ago4
Failed to build RPM from SRPM because of large UID and old tar command
Closed 2 months ago3
configure: error: Could not run a simple Fortran program. Aborting.
Closed 2 months ago1
COLL/UCC doesn't compile against head of UCC at master
Closed 2 months ago2
Support zero-copy non-contiguous send
Updated 2 months ago4
Error `Could not find viable pmix build` while building in Docker
Closed 2 months ago2
problem with MPI_Comm_Create_Group
Closed 2 months ago8