NVIDIA/cuda-python

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CUDA Python: Performance meets Productivity

Stars: 3.4k
Forks: 329
Open beginner issues: 0
Indexed issues: 216
Avg merge: 1d 23h
Merged PRs (30d): 116

Dominant language: Cython
License: Apache-2.0
Last GitHub push: Sep 19, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

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216 open issues indexed

cuda.core: ending a GraphBuilder after an invalidated conditional-body capture crashes the process (CUDA driver bug) Open

bug cuda.core P2

NVIDIA/cuda-python#2918 · 1 assignee · Opened Sep 18, 2026
cuda.core: VirtualMemoryResourceOptions accepts values the driver rejects, and modify_allocation mishandles edge inputs Open

bug cuda.core

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

NVIDIA/cuda-python#2910 · Opened Sep 17, 2026
cuda.core: VirtualMemoryResource.modify_allocation(config=...) changes the resource's policy Open

bug cuda.core

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

NVIDIA/cuda-python#2909 · Opened Sep 17, 2026
cuda.core: a second grow of a grown VMM buffer fails Open

bug cuda.core

Difficulty 4/5 3-5 days Newbie friendliness 35/100

NVIDIA/cuda-python#2908 · Opened Sep 17, 2026
cuda.core: grown VMM buffers record the requested size, not the aligned size Open

bug cuda.core

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

NVIDIA/cuda-python#2907 · Opened Sep 17, 2026
EPIC: VirtualMemoryResource ownership redesign Open

cuda.core EPIC P1

NVIDIA/cuda-python#2906 · 3 comments · 1 assignee · Opened Sep 17, 2026
Experiment with turning on annotation_typing globally Open

triage

NVIDIA/cuda-python#2894 · 1 reaction · 1 assignee · Opened Sep 17, 2026
cuda.core: a fast-path VMM grow leaves its extension unfreeable Open

bug cuda.core

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

NVIDIA/cuda-python#2887 · 1 comment · Opened Sep 16, 2026
cuda.core: VirtualMemoryResource.deallocate() unmaps without ordering on the stream Open

bug cuda.core

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

NVIDIA/cuda-python#2886 · 1 comment · Opened Sep 16, 2026
cuda.core: VirtualMemoryResource grow path's Buffer._clear() re-triggers mr.deallocate() on an already-freed VA range Open

bug cuda.core

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

NVIDIA/cuda-python#2877 · Opened Sep 16, 2026
Drive PR #2266 (Migrating cuda-python sample codes from cuda-samples repository and Testing) across the finish line Open

triage

NVIDIA/cuda-python#2866 · 1 assignee · Opened Sep 15, 2026
[FEA]: Make pixi lockfile freshness check mandatory Open

CI/CD triage

NVIDIA/cuda-python#2850 · 1 assignee · Opened Sep 14, 2026
cuda.core: DeviceMemoryResource setup is refused under non-relaxed stream capture, and tearing down the invalidated GraphBuilder segfaults Open

bug cuda.core P1

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

NVIDIA/cuda-python#2834 · Opened Sep 11, 2026
[CI failure] CI: Coverage scheduled runs Open

bug ci-workflow-health CI/CD triage

Difficulty 4/5 3-5 days Newbie friendliness 25/100

NVIDIA/cuda-python#2810 · 8 comments · Opened Sep 11, 2026
[BUG]: PinnedMemoryResource rejects usable HOST_NUMA pools on CUDA 12.6-12.8 drivers Open

bug cuda.core triage

NVIDIA/cuda-python#2795 · 3 comments · 1 assignee · Opened Sep 9, 2026
cuda-bindings 13.3's cufile is incompatible with CTK 13.4 Open

bug cuda.bindings P0

NVIDIA/cuda-python#2794 · 1 comment · 1 assignee · Opened Sep 9, 2026
There is some common code in setting launch priority in launch config and stream. Good to merge the common code. Open

triage

NVIDIA/cuda-python#2793 · 1 assignee · Opened Sep 9, 2026
cuda-core: require a cuda-bindings version floor at build and run time Open

cuda.core enhancement P0

NVIDIA/cuda-python#2783 · 1 comment · 1 assignee · Opened Sep 8, 2026
Avoid using non-polymorphic CUDA graph APIs internally Open

breaking cuda.core enhancement

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

NVIDIA/cuda-python#2778 · 3 comments · Opened Sep 8, 2026
cuda.core: GraphBuilder.join leaves forked builders in a state that segfaults at garbage collection if it raises midway Open

triage

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

NVIDIA/cuda-python#2776 · Opened Sep 5, 2026
Discussion: Should functions in lowpp layer be `def` rather than `cpdef`? Open

cuda.bindings performance triage

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

NVIDIA/cuda-python#2766 · 1 comment · 1 reaction · Opened Sep 4, 2026
[BUG]: SMResource.split() dry_run=True fails with cuDevSmResourceSplit when smCount is non-zero Open

bug

NVIDIA/cuda-python#2765 · 2 assignees · Opened Sep 4, 2026
cuda.core: should sticky CUDA errors derive from BaseException? Open

cuda.core RFC

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

NVIDIA/cuda-python#2761 · Opened Sep 3, 2026
cuda.core: return CUresult from C++ handle factories instead of thread-local error state Open

cuda.core enhancement P1

NVIDIA/cuda-python#2760 · 1 comment · 1 assignee · Opened Sep 3, 2026
[CI failure] CI: Nightly optional-deps scheduled runs Open

bug ci-workflow-health CI/CD triage

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

NVIDIA/cuda-python#2748 · 20 comments · Opened Sep 1, 2026
[CI failure] CI scheduled runs Open

bug ci-workflow-health CI/CD triage

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

NVIDIA/cuda-python#2745 · 21 comments · Opened Sep 1, 2026
Rewrite ci/ci-pipeline.svg in something text-based Open

triage

Difficulty 3/5 1-2 days Newbie friendliness 65/100

NVIDIA/cuda-python#2740 · Opened Aug 31, 2026
EPIC: Fix the nightly CI failures Open

CI/CD EPIC P1

NVIDIA/cuda-python#2722 · 2 comments · 1 assignee · Opened Aug 28, 2026
[DOC]: cuda.core 1.1.1 note misstates program cache permissions Open

triage

Difficulty 1/5 Under an hour Newbie friendliness 88/100

NVIDIA/cuda-python#2717 · Opened Aug 27, 2026
Create conda packages from sdist rather than git archives Open

triage

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

NVIDIA/cuda-python#2715 · 1 comment · Opened Aug 27, 2026
[DOC]: `PinnedMemoryResource.allocate` documents no parameters Open

triage

Difficulty 1/5 1-3 hours Newbie friendliness 90/100

NVIDIA/cuda-python#2712 · Opened Aug 27, 2026
[BUG]: cuda.core fails to build from source against cuda-bindings 13.0.x Open

triage

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

NVIDIA/cuda-python#2699 · Opened Aug 25, 2026
[BUG]: `register()` accepts a mismatched UUID under `python -O` Open

triage

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

NVIDIA/cuda-python#2697 · 2 comments · Opened Aug 25, 2026
[BUG]: VirtualMemoryResource `host_numa` allocations always fail Open

triage

Difficulty 4/5 3-5 days Newbie friendliness 70/100

NVIDIA/cuda-python#2694 · 1 comment · Opened Aug 25, 2026
[FEA]: Support CU_LAUNCH_ATTRIBUTE_SHARED_MEMORY_MODE in LaunchConfig Open

cuda.core feature

NVIDIA/cuda-python#2667 · 1 assignee · Opened Aug 18, 2026
[FEA]: Support CU_LAUNCH_ATTRIBUTE_PORTABLE_CLUSTER_SIZE_MODE in LaunchConfig Open

cuda.core feature

NVIDIA/cuda-python#2666 · 1 assignee · Opened Aug 18, 2026
[FEA]: Support CU_LAUNCH_ATTRIBUTE_NVLINK_UTIL_CENTRIC_SCHEDULING in LaunchConfig Open

cuda.core feature

NVIDIA/cuda-python#2665 · 1 assignee · Opened Aug 18, 2026
[FEA]: Support CU_LAUNCH_ATTRIBUTE_PREFERRED_SHARED_MEMORY_CARVEOUT in LaunchConfig Open

cuda.core feature

NVIDIA/cuda-python#2664 · 1 assignee · Opened Aug 18, 2026
[FEA]: Support CU_LAUNCH_ATTRIBUTE_DEVICE_UPDATABLE_KERNEL_NODE in LaunchConfig Open

cuda.core feature

NVIDIA/cuda-python#2663 · 1 assignee · Opened Aug 18, 2026
[FEA]: Support CU_LAUNCH_ATTRIBUTE_LAUNCH_COMPLETION_EVENT in LaunchConfig Open

cuda.core feature

NVIDIA/cuda-python#2662 · 1 assignee · Opened Aug 18, 2026
[FEA]: Support CU_LAUNCH_ATTRIBUTE_PREFERRED_CLUSTER_DIMENSION in LaunchConfig Open

cuda.core feature

NVIDIA/cuda-python#2661 · 1 assignee · Opened Aug 18, 2026
cuda.core: support "3D copies with attributes" (follow-on to issue #2365) Open

cuda.core triage

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

NVIDIA/cuda-python#2660 · Opened Aug 18, 2026
[BUG]: Replace obsolete Nsight GUI utility names with nsys-ui and ncu-ui Open

triage

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

NVIDIA/cuda-python#2654 · Opened Aug 17, 2026
CI: Lychee reliability improvement ideas Open

CI/CD P1

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

NVIDIA/cuda-python#2652 · 1 comment · Opened Aug 17, 2026
[BUG]: MemcpyNode.update() rejects stream-captured memcpy nodes Open

triage

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

NVIDIA/cuda-python#2649 · 2 comments · Opened Aug 16, 2026
[BUG]: LocatedHeaderDir is mutable, so callers can poison the cached header-directory lookup Open

triage

Difficulty 2/5 1-3 hours Newbie friendliness 82/100

NVIDIA/cuda-python#2646 · 1 reaction · Opened Aug 16, 2026
[FEA]: Support CU_LAUNCH_ATTRIBUTE_MEM_SYNC_DOMAIN in LaunchConfig Open

cuda.core feature

NVIDIA/cuda-python#2633 · 1 assignee · Opened Aug 14, 2026
[FEA]: Support CU_LAUNCH_ATTRIBUTE_MEM_SYNC_DOMAIN_MAP in LaunchConfig Open

cuda.core feature

NVIDIA/cuda-python#2632 · 1 assignee · Opened Aug 14, 2026
[FEA]: Support CU_LAUNCH_ATTRIBUTE_PROGRAMMATIC_EVENT in LaunchConfig Open

cuda.core feature

NVIDIA/cuda-python#2630 · 2 comments · 1 assignee · Opened Aug 14, 2026
[FEA]: Support CU_LAUNCH_ATTRIBUTE_ACCESS_POLICY_WINDOW in LaunchConfig Open

cuda.core feature

NVIDIA/cuda-python#2626 · 1 assignee · Opened Aug 14, 2026

NVIDIA/cuda-python

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