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kokkos

14 indexed repositories · View on GitHub

kokkos
Kokkos C++ Performance Portability Programming Ecosystem: The Programming Model - Parallel Execution and Memory Abstraction

C++ · 2686 stars
mdspan
Reference implementation of mdspan targeting C++23

C++ · 507 stars
kokkos-kernels
Kokkos C++ Performance Portability Programming Ecosystem: Math Kernels - Provides BLAS, Sparse BLAS and Graph Kernels

C++ · 404 stars
kokkos-tutorials
Tutorials for the Kokkos C++ Performance Portability Programming Ecosystem

C++ · 388 stars
stdBLAS
Reference Implementation for stdBLAS

C++ · 167 stars
kokkos-tools
Kokkos C++ Performance Portability Programming Ecosystem: Profiling and Debugging Tools

C++ · 151 stars
pykokkos
Performance portable parallel programming in Python backed by Kokkos

Python · 127 stars
kokkos-fft
A shared-memory FFT for the Kokkos ecosystem

C++ · 62 stars
kokkos-comm
Experimental Explicit Communications API for Kokkos

C++ · 41 stars
kokkos-resilience
Resilience Extensions for Kokkos

C++ · 9 stars
kokkos-core-wiki

7 stars
kokkos.github.io
Source code for kokkos.org pages

HTML · 3 stars
code-examples
Code snippets from the paper

C++ · 2 stars
governance
Documents describing the governance of the Kokkos Ecosystem

1 star

Beginner friendly Everything

Open All

Linker failure with `amdclang` and rocm 7.2.0 Open

Backend - HIP Bug CMake

Difficulty 4/5 3-5 days Newbie friendliness 48/100

kokkos/kokkos#9566 · Opened Sep 19, 2026
Change SYCL RangePolicy to use nd_range<2> to query indices consistent with CUDA/HIP Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

kokkos/kokkos#9565 · 1 comment · Opened Sep 19, 2026
Use-after-free in registration Open

bug

kokkos/kokkos-resilience#119 · 1 assignee · Opened Sep 17, 2026
Including <complex> cause ICE on nvcc 13.3 with aarch64 Open

Difficulty 2/5 1-3 hours Newbie friendliness 88/100

kokkos/mdspan#470 · Opened Sep 17, 2026
Supporting an external installation of mdspan Open

Difficulty 5/5 Over a week Newbie friendliness 32/100

kokkos/kokkos#9545 · 1 comment · Opened Sep 16, 2026
Add view label to error message Open

Difficulty 3/5 1-2 days Newbie friendliness 72/100

kokkos/kokkos#9543 · Opened Sep 15, 2026
Missing default constructor for `KokkosComm::Communicator` Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

kokkos/kokkos-comm#274 · Opened Sep 15, 2026
Possible SYCL runtime bug causing `sycl.exec_space_thread_safety_range_scan_different_sizes` to fail Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

kokkos/kokkos#9533 · 2 comments · Opened Sep 11, 2026
Improvements to the BDF ODE Solver Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

kokkos/kokkos-kernels#3292 · 2 comments · Opened Sep 11, 2026
Align constructors of `OffsetView` Open

kokkos/kokkos#9522 · 3 comments · 1 reaction · 1 assignee · Opened Sep 9, 2026
Provide configurable index type for `OffsetView` Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

kokkos/kokkos#9521 · Opened Sep 9, 2026
Generalize view's metadata checks in communications Open

A-mpi A-nccl C-maintenance

Difficulty 5/5 Over a week Newbie friendliness 35/100

kokkos/kokkos-comm#271 · 5 comments · Opened Sep 9, 2026
We expect one randomness CI test to fail ~2.5% of the time Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

kokkos/kokkos#9516 · 11 comments · Opened Sep 8, 2026
Kokkos::parallel_reduce with a small (<= 16-byte) scalar reducer can return an incorrect result on the HIP / AMD backend Open

kokkos/kokkos#9511 · 8 comments · 1 assignee · Opened Sep 4, 2026
Enable/require GMock Open

Difficulty 3/5 1-2 days Newbie friendliness 58/100

kokkos/kokkos#9508 · Opened Sep 4, 2026
Exception thrown on allocation failure are not properly documented Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

kokkos/kokkos-core-wiki#925 · Opened Sep 2, 2026
Spack recipe and FFTW API Open

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

kokkos/kokkos-fft#527 · 3 comments · Opened Aug 31, 2026
Inconsistent/unclear when `push_finalize_hook` is allowed Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

kokkos/kokkos#9479 · 4 comments · Opened Aug 26, 2026
Signedness of word size type used in CUDA and HIP reductions changes with the size of reduced variable Open

kokkos/kokkos#9477 · 1 comment · 1 assignee · Opened Aug 26, 2026
Become CPS compatible Open

Difficulty 2/5 1-3 hours Newbie friendliness 70/100

kokkos/mdspan#466 · Opened Aug 26, 2026
HIP min reduction failure when using CrayClang compiler on MI250 Open

Compiler Issue

kokkos/kokkos#9476 · 5 comments · 1 assignee · Opened Aug 26, 2026
Views precompilation opt-out Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

kokkos/pykokkos#437 · Opened Aug 25, 2026
ScatterView tests are expensive Open

kokkos/kokkos#9465 · 1 assignee · Opened Aug 24, 2026
Should `std::tuple_{size,element}` be specialized for `Kokkos::pair`? Open

kokkos/kokkos#9457 · 1 comment · 1 reaction · 1 assignee · Opened Aug 21, 2026
Kokkos::View Follow Up Work for New Implementation Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

kokkos/kokkos#9447 · 4 comments · Opened Aug 18, 2026
HPX: persistent intermittent leaks and finalize crashes Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

kokkos/kokkos#9442 · Opened Aug 18, 2026
Fix NVHPC (nvc++ plus OpenACC) and reenable tests disabled in PR 9406 Open

kokkos/kokkos#9435 · 1 comment · 2 assignees · Opened Aug 17, 2026
`ReferenceCountedAccessor` converting constructors don't preserve nested accessor state Open

Difficulty 2/5 1-3 hours Newbie friendliness 70/100

kokkos/kokkos#9415 · Opened Aug 7, 2026
`ReferenceCountedAccessor::nested_accessor` does not return by reference Open

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

kokkos/kokkos#9412 · Opened Aug 7, 2026
HIP: `ParallelFor` block size is chosen from the work size, not the kernel Open

Backend - HIP

kokkos/kokkos#9402 · 9 comments · 1 reaction · 1 assignee · Opened Aug 4, 2026
Add a wrapper for MemcpyFromSymbol Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

kokkos/kokkos-fft#513 · 1 comment · Opened Aug 3, 2026
Kokkos-FFT callback API design Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

kokkos/kokkos-fft#512 · Opened Aug 3, 2026
Hip: hip.graph_capture timeouts with rocm/7.14 Open

Backend - HIP

Difficulty 4/5 3-5 days Newbie friendliness 45/100

kokkos/kokkos#9390 · 5 comments · Opened Jul 30, 2026
Fix `Request` state tracking in `wait_all` and `wait_any` Open

A-mpi A-nccl C-bug-report

kokkos/kokkos-comm#266 · 1 assignee · Opened Jul 30, 2026
Rework `Channel` to use raw persistent MPI requests Open

A-mpi C-bug-report

Difficulty 4/5 3-5 days Newbie friendliness 55/100

kokkos/kokkos-comm#265 · 3 comments · Opened Jul 30, 2026
Fix `Request` ownership transfer and lifetime semantics Open

A-core A-mpi A-nccl C-bug-report T-semantics

kokkos/kokkos-comm#264 · 1 assignee · Opened Jul 30, 2026
Add `kokkos_malloc` test requesting too much memory Open

kokkos/kokkos#9371 · 1 comment · 1 assignee · Opened Jul 23, 2026
`enable_uvm()` deprecation Open

maintenance

kokkos/pykokkos#432 · 1 assignee · Opened Jul 19, 2026
submdspan overloads using std::pair are marked as device-usable Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

kokkos/mdspan#461 · Opened Jul 9, 2026
Audit C++26 - merged features and move them out of Experimental Open

kokkos/mdspan#460 · 1 assignee · Opened Jul 9, 2026
CHANGELOG for 5.3 Open

Difficulty 1/5 Under an hour Newbie friendliness 38/100

kokkos/kokkos#9329 · 2 comments · Opened Jul 8, 2026
Adding callback capabilities Open

Difficulty 5/5 Over a week Newbie friendliness 42/100

kokkos/kokkos-fft#500 · 6 comments · Opened Jul 6, 2026
Document mdspan-style `Kokkos::View` template parameters, index-type semantics, and 32-bit vs 64-bit indexing behavior Open

Difficulty 4/5 3-5 days Newbie friendliness 50/100

kokkos/kokkos#9314 · Opened Jul 2, 2026
Priorities and milestones Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

kokkos/kokkos-fft#496 · Opened Jul 2, 2026
2026 developers meeting action items Open

kokkos/governance#5 · 3 assignees · Opened Jul 1, 2026
`cudaFree()` does not imply a `cudaDeviceSynchronize()` Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

kokkos/kokkos#9307 · Opened Jul 1, 2026
Build documentation via CMake Open

T-build T-docs

Difficulty 3/5 1-2 days Newbie friendliness 64/100

kokkos/kokkos-comm#259 · Opened Jul 1, 2026
Split backend datatype and reduction-op mappings from generic interfaces Open

A-core C-maintenance

Difficulty 4/5 3-5 days Newbie friendliness 55/100

kokkos/kokkos-comm#258 · Opened Jul 1, 2026
Reorganize backend bindings implementation internals Open

A-core C-maintenance

Difficulty 5/5 Over a week Newbie friendliness 35/100

kokkos/kokkos-comm#257 · Opened Jul 1, 2026
Architectural and Build System Challenges for CCCL Integration in the Kokkos CUDA Backend Open

Backend - CUDA CMake Refactor

Difficulty 5/5 Over a week Newbie friendliness 35/100

kokkos/kokkos#9302 · 2 comments · Opened Jun 30, 2026

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