NVIDIA cuSPARSELt is a high-performance CUDA library dedicated to general matrix-matrix operations in which at least one operand is a structured sparse matrix with 50% sparsity ratio:
where \(op(A)/op(B)\) refers to in-place operations such as transpose/non-transpose, and \(alpha, beta\) are scalars or vectors.
The cuSPARSELt APIs allow flexibility in the algorithm/operation selection, epilogue, and matrix characteristics, including memory layout, alignment, and data types.
Download: developer.nvidia.com/cusparselt/downloads
Provide Feedback: Math-Libs-Feedback@nvidia.com
Examples: cuSPARSELt Example 1, cuSPARSELt Example 2
Blog post:
Exploiting NVIDIA Ampere Structured Sparsity with cuSPARSELt
Structured Sparsity in the NVIDIA Ampere Architecture and Applications in Search Engines
Making the Most of Structured Sparsity in the NVIDIA Ampere Architecture
Key Features
NVIDIA Sparse MMA tensor core support
Mixed-precision computation support:
Input A/B
Input C
Output D
Compute
Block scaled
Support SM arch
FP32
FP32
FP32
FP32
No
8.0, 8.6, 8.7 9.0, 10.0, 10.3 11.0, 12.0, 12.1
BF16
BF16
BF16
FP32
FP16
FP16
FP16
FP32
FP16
FP16
FP16
FP16
No
9.0
INT8
INT8
INT8
INT32
No
8.0, 8.6, 8.7 9.0, 10.0, 11.0 12.0, 12.1
INT32
INT32
FP16
FP16
BF16
BF16
INT8
INT8
INT8
INT32
No
8.0, 8.6, 8.7 9.0, 10.0, 11.0 12.0, 12.1
INT32
INT32
FP16
FP16
BF16
BF16
E4M3
FP16
E4M3
FP32
No
9.0, 10.0, 10.3 11.0, 12.0, 12.1
BF16
E4M3
FP16
FP16
BF16
BF16
FP32
FP32
E5M2
FP16
E5M2
FP32
No
9.0, 10.0, 10.3 11.0, 12.0, 12.1
BF16
E5M2
FP16
FP16
BF16
BF16
FP32
FP32
E4M3
FP16
E4M3
FP32
A/B/D_OUT_SCALE = VEC64_UE8M0
D_SCALE = 32F
10.0, 10.3, 11.0 12.0, 12.1
BF16
E4M3
FP16
FP16
A/B_SCALE = VEC64_UE8M0
BF16
BF16
FP32
FP32
E2M1
FP16
E2M1
FP32
A/B/D_SCALE = VEC32_UE4M3
D_SCALE = 32F
10.0, 10.3, 11.0 12.0, 12.1
BF16
E2M1
FP16
FP16
A/B_SCALE = VEC32_UE4M3
BF16
BF16
FP32
FP32
Matrix pruning and compression functionalities
Activation functions, bias vector, and output scaling
Batched computation (multiple matrices in a single run)
GEMM Split-K mode
Auto-tuning functionality (see cusparseLtMatmulSearch() <cusparseLtMatmulSearch-label>)
NVTX ranging and Logging functionalities
Support
Supported SM Architectures: SM 8.0, SM 8.6, SM 8.7, SM 8.9, SM 9.0, SM 10.0, SM 10.3, SM 11.0, SM 12.0, SM 12.1
Supported CPU architectures and operating systems:
OS |
CPU archs |
|---|---|
Windows |
x86_64 |
Linux |
x86_64, Arm64 |
Documentation
Please refer to https://docs.nvidia.com/cuda/cusparselt/index.html for the cuSPARSELt documentation.
Installation
The cuSPARSELt wheel can be installed as follows:
pip install nvidia-cusparselt-cuXXwhere XX is the CUDA major version.
Metadata
Release files for nvidia-cusparselt-cu13 0.9.1
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Built distributions (wheels)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| nvidia_cusparselt_cu13-0.9.1-py3-none-win_amd64.whl | Python 3 | none | Windows x86-64 | Details |
| nvidia_cusparselt_cu13-0.9.1-py3-none-manylinux2014_x86_64.whl | Python 3 | none | Linux glibc 2.17+ x86-64 | Details |
| nvidia_cusparselt_cu13-0.9.1-py3-none-manylinux2014_aarch64.whl | Python 3 | none | Linux glibc 2.17+ ARM64 | Details |
Total release size: 553.2 MB
Release files / nvidia_cusparselt_cu13-0.9.1-py3-none-win_amd64.whl
| Download URL | nvidia_cusparselt_cu13-0.9.1-py3-none-win_amd64.whl |
|---|---|
| Size | 157.9 MB |
| Tags | Python 3 Windows x86-64 |
|
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No |
| Uploaded via |
twine/6.2.0 CPython/3.14.4
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Release files / nvidia_cusparselt_cu13-0.9.1-py3-none-manylinux2014_x86_64.whl
| Download URL | nvidia_cusparselt_cu13-0.9.1-py3-none-manylinux2014_x86_64.whl |
|---|---|
| Size | 171.5 MB |
| Tags | Linux glibc 2.17+ x86-64 Python 3 |
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No |
| Uploaded via |
twine/6.2.0 CPython/3.14.4
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Release files / nvidia_cusparselt_cu13-0.9.1-py3-none-manylinux2014_aarch64.whl
| Download URL | nvidia_cusparselt_cu13-0.9.1-py3-none-manylinux2014_aarch64.whl |
|---|---|
| Size | 223.7 MB |
| Tags | Linux glibc 2.17+ ARM64 Python 3 |
|
SHA-256 checksum How to use checksums |
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Uploaded using Trusted Publishing? What is trusted publishing? |
No |
| Uploaded via |
twine/6.2.0 CPython/3.14.3
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