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Bad persistent collective communication performance

performance

Target: v5.0.x

Status: Open.

#12657 In open-mpi/ompi;

· mikesoehner opened on Jul 8, 2024

Non-blocking point-to-point performance issue (MPI_Isend, MPI_Irecv)

performance

Status: Open.

#12414 In open-mpi/ompi;

· LukasBreitwieser opened on Mar 18, 2024

Performance issue in part/persist

performance

Target: main

Target: v5.0.x

Status: Open.

#12012 In open-mpi/ompi;

· devreal opened on Oct 21, 2023

Is it possible for the target to service MPI_Get's in parallel?

performance

question

Status: Open.

#9508 In open-mpi/ompi;

· frizwi opened on Oct 10, 2021

Mixing UCX pml and osc performance degradation

performance

Target: main

Target: v4.1.x

Status: Open.

#9080 In open-mpi/ompi;

· devreal opened on Jun 21, 2021

Large message collective performance drops when using coll/han

performance

Status: Open.

#9062 In open-mpi/ompi;

· hjelmn opened on Jun 14, 2021

 ·  

v5.0.3

Add MCA parameters to define the size of memcpy chunks.

performance

Target: main

Target: v6.0.x

⚠️ WIP-DNM!

Status: Open (in progress).

open-mpi/ompinumber 6426

#6426 In open-mpi/ompi;

· bosilca opened on Feb 23, 2019

MPI_ALLOC_MEM slowness with CP2K application

bug

performance

Status: Open.

#3182 In open-mpi/ompi;

· jsquyres opened on Mar 16, 2017

 ·  

Future