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Open MPI doesn't support non-blocking reduction colls on GPU

A-mpiArea: KokkosComm MPI backend implementationArea: KokkosComm MPI backend implementation

Status: Open.

#215 In kokkos/kokkos-comm;

· cedricchevalier19 opened on Feb 10, 2026

mpi::scan unit tests fail with CUDA+MPICH

A-mpiArea: KokkosComm MPI backend implementationArea: KokkosComm MPI backend implementation

C-bug-reportCategory: a bug reportCategory: a bug report

Status: Open.

#204 In kokkos/kokkos-comm;

· dssgabriel opened on Jan 8, 2026

Update Documentation

T-docsTopic: something related to documentationTopic: something related to documentation

Status: Open.

#201 In kokkos/kokkos-comm;

· cedricchevalier19 opened on Dec 10, 2025

·  

Version 0.3.0

Review public API

Status: Open.

#200 In kokkos/kokkos-comm;

· cedricchevalier19 opened on Dec 8, 2025

Ensure all error codes returned by NCCL are checked

A-ncclArea: KokkosComm NCCL backend implementationArea: KokkosComm NCCL backend implementation

C-bug-reportCategory: a bug reportCategory: a bug report

E-easyCall for participation: easy - no/low experience level requiredCall for participation: easy - no/low experience level required

Status: Open.

#184 In kokkos/kokkos-comm;

· dssgabriel opened on Nov 21, 2025

Kokkos ecosystem feedback

Status: Open.

#129 In kokkos/kokkos-comm;

· cwpearson opened on Nov 14, 2024

mpi namespace -> Experimental?

Status: Open.

#121 In kokkos/kokkos-comm;

· cwpearson opened on Sep 9, 2024

Clarify semantics of ExecSpace parameter for communication interfaces

T-docsTopic: something related to documentationTopic: something related to documentation

T-performanceTopic: something related to performanceTopic: something related to performance

T-semanticsTopic: something related to code semanticsTopic: something related to code semantics

Status: Open.

#108 In kokkos/kokkos-comm;

· dssgabriel opened on Jul 10, 2024

KokkosComm_irecv.hpp has no function overload to take an ExecSpace &space parameter

Status: Open.

#102 In kokkos/kokkos-comm;

· nicoleavans opened on Jun 26, 2024

Document initialization procedure

T-docsTopic: something related to documentationTopic: something related to documentation

Status: Open.

#97 In kokkos/kokkos-comm;

· dssgabriel opened on Jun 19, 2024

Unit Tests call Impl::irecv , KokkosComm::irecv takes MPI_Request by value rather than reference

Status: Open.

#91 In kokkos/kokkos-comm;

· nicoleavans opened on Jun 18, 2024

Create containers for CI

A-ciArea: KokkosComm CI/CD setupArea: KokkosComm CI/CD setup

C-enhancementCategory: an enhancement or bug fixCategory: an enhancement or bug fix

Status: Open.

#86 In kokkos/kokkos-comm;

· cedricchevalier19 opened on Jun 12, 2024