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NOTE: This is a fork of https://github.com/tgale96/grouped_gemm.

Grouped GEMM

A lighweight library exposing grouped GEMM kernels in PyTorch.

Installation

Run pip install grouped-gemm-db to install the package.

Compiling from source

By default, the installed package runs in conservative (cuBLAS) mode: it launches one GEMM kernel per batch element instead of using a single grouped GEMM kernel for the whole batch.

To enable using grouped GEMM kernels, you need to switch to the CUTLASS mode by setting the GROUPED_GEMM_CUTLASS environment variable to 1 when building the library. For example, to build the library in CUTLASS mode for Ampere (SM 8.0), clone the repository and run the following:

$ TORCH_CUDA_ARCH_LIST=8.0 GROUPED_GEMM_CUTLASS=1 pip install .

See this comment for some performance measurements on A100 and H100.

Upcoming features

  • Hopper-optimized grouped GEMM kernels.

Release files for grouped-gemm-db 0.3.0

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

Source distribution (sdist)

Source distribution for grouped-gemm-db 0.3.0
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Release files / grouped_gemm_db-0.3.0.tar.gz

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