nccl4py: Pythonic NCCL Communication for GPU Clusters

NVIDIA

nccl4py bridges Python’s simplicity with the performance of NVIDIA Collective Communications Library (NCCL), and provides a Pythonic interface to NCCL library’s functionality. It enables Python applications to leverage NCCL’s GPU-accelerated multi-GPU and multi-node communication capabilities for distributed computing workloads.

nccl4py follows the NCCL SLA. The details of the NCCL SLA is available here.

nccl4py is under active development. Feedback and suggestions are welcome!

Installation

For CUDA 12.x:

pip install nccl4py[cu12]

For CUDA 13.x:

pip install nccl4py[cu13]

Project links

Key dates

PyPI data
Data sourced directly from PyPI's database.
  • Released:
Latest release

Owner

PyPI data
Data sourced directly from PyPI's database.

Credits

Author: NVIDIA Corporation

License expression

Apache-2.0
View SPDX License List

Requires

Python >=3.10

Provides Extra

cu12 cu13

Classifiers

Report project as malware

Metadata

Project links

Key dates

PyPI data
Data sourced directly from PyPI's database.
  • Released:
Latest release

Owner

PyPI data
Data sourced directly from PyPI's database.

Credits

Author: NVIDIA Corporation

License expression

Apache-2.0
View SPDX License List

Requires

Python >=3.10

Provides Extra

cu12 cu13

Classifiers

Report project as malware

Release files for nccl4py 0.6.0

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Built distributions (wheels)

Table of built distributions (wheels) for nccl4py 0.6.0
File
nccl4py-0.6.0-cp314-cp314t-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl 3.6 MB CPython 3.14 CPython 3.14 free-threading Linux glibc 2.24+ x86-64, Linux glibc 2.28+ x86-64 Details
nccl4py-0.6.0-cp314-cp314t-manylinux_2_24_aarch64.manylinux_2_28_aarch64.whl 3.7 MB CPython 3.14 CPython 3.14 free-threading Linux glibc 2.24+ ARM64, Linux glibc 2.28+ ARM64 Details
nccl4py-0.6.0-cp314-cp314-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl 3.6 MB CPython 3.14 CPython 3.14 Linux glibc 2.28+ x86-64, Linux glibc 2.24+ x86-64 Details
nccl4py-0.6.0-cp314-cp314-manylinux_2_24_aarch64.manylinux_2_28_aarch64.whl 3.6 MB CPython 3.14 CPython 3.14 Linux glibc 2.24+ ARM64, Linux glibc 2.28+ ARM64 Details
nccl4py-0.6.0-cp313-cp313-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl 3.7 MB CPython 3.13 CPython 3.13 Linux glibc 2.24+ x86-64, Linux glibc 2.28+ x86-64 Details
nccl4py-0.6.0-cp313-cp313-manylinux_2_24_aarch64.manylinux_2_28_aarch64.whl 3.6 MB CPython 3.13 CPython 3.13 Linux glibc 2.24+ ARM64, Linux glibc 2.28+ ARM64 Details
nccl4py-0.6.0-cp312-cp312-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl 3.7 MB CPython 3.12 CPython 3.12 Linux glibc 2.28+ x86-64, Linux glibc 2.24+ x86-64 Details
nccl4py-0.6.0-cp312-cp312-manylinux_2_24_aarch64.manylinux_2_28_aarch64.whl 3.6 MB CPython 3.12 CPython 3.12 Linux glibc 2.24+ ARM64, Linux glibc 2.28+ ARM64 Details
nccl4py-0.6.0-cp311-cp311-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl 3.7 MB CPython 3.11 CPython 3.11 Linux glibc 2.28+ x86-64, Linux glibc 2.24+ x86-64 Details
nccl4py-0.6.0-cp311-cp311-manylinux_2_24_aarch64.manylinux_2_28_aarch64.whl 3.7 MB CPython 3.11 CPython 3.11 Linux glibc 2.28+ ARM64, Linux glibc 2.24+ ARM64 Details
nccl4py-0.6.0-cp310-cp310-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl 3.5 MB CPython 3.10 CPython 3.10 Linux glibc 2.24+ x86-64, Linux glibc 2.28+ x86-64 Details
nccl4py-0.6.0-cp310-cp310-manylinux_2_24_aarch64.manylinux_2_28_aarch64.whl 3.5 MB CPython 3.10 CPython 3.10 Linux glibc 2.24+ ARM64, Linux glibc 2.28+ ARM64 Details

Total release size: 43.6 MB

Release files / nccl4py-0.6.0-cp314-cp314t-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl

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Size 3.6 MB
Tags CPython 3.14 CPython 3.14 free-threading Linux glibc 2.24+ x86-64 Linux glibc 2.28+ x86-64
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Download URL nccl4py-0.6.0-cp314-cp314t-manylinux_2_24_aarch64.manylinux_2_28_aarch64.whl
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Release history Release notifications | RSS feed

This release

0.6.0 This release

12 release files

0.5.0

12 release files

0.4.1

12 release files

0.3.1.post1

12 release files

0.3.1

12 release files

0.2.0

10 release files

0.1.1

10 release files

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