b4b0887ca4
- Added a set of AVX512 fringe kernels(using masked loads and stores) in order to avoid rerouting to the GEMV typed API interface(when m = 1). This ensures uniformity in performance across the main and fringe cases, when the calls are multithreaded. - Further tuned the thresholds to decide between ZGEMM Tiny, Small SUP and Native paths for ZEN4 and ZEN5 architectures(in case of parallel execution). This would account for additional combinations of the input dimensions. - Moved the call to Tiny-ZGEMM before the BLIS object creation, since this code-path operates on raw buffers. - Added the necessary test-cases for functional and memory testing of the newly added kernels. AMD-Internal: [CPUPL-6378][CPUPL-6661] Change-Id: I9af73d1b6ef82b26503d4fc373111132aee3afd6
AOCL-BLAS library
AOCL-BLAS is AMD's optimized version of BLAS targeted for AMD EPYC and Ryzen CPUs. It is developed as a forked version of BLIS (https://github.com/flame/blis), which is developed by members of the Science of High-Performance Computing (SHPC) group in the Institute for Computational Engineering and Sciences at The University of Texas at Austin and other collaborators (including AMD). All known features and functionalities of BLIS are retained and supported in AOCL-BLAS library. AOCL-BLAS is regularly updated with the improvements from the upstream repository.
AOCL BLAS is optimized with SSE2, AVX2, AVX512 instruction sets which would be enabled based on the target Zen architecture using the dynamic dispatch feature. All prominent Level 3, Level 2 and Level 1 APIs are designed and optimized for specific paths targeting different size spectrums e.g., Small, Medium and Large sizes. These algorithms are designed and customized to exploit the architectural improvements of the target platform.
For detailed instructions on how to configure, build, install, and link against AOCL-BLAS on AMD CPUs, please refer to the AOCL User Guide located on AMD developer portal.
The upstream repository (https://github.com/flame/blis) contains further information on BLIS, including background information on BLIS design, usage examples, and a complete BLIS API reference.
AOCL-BLAS is developed and maintained by AMD. You can contact us on the email-id toolchainsupport@amd.com. You can also raise any issue/suggestion on the git-hub repository at https://github.com/amd/blis/issues.