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Mapping Parallel Matrix Multiplication in GotoBLAS2 to the AMD Versal ACAP for Deep Learning

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arXiv:2404.15043v1 Announce Type: new
Abstract: This paper investigates the design of parallel general matrix multiplication (GEMM) for a Versal Adaptive Compute Accelerated Platform (ACAP) equipped with a VC1902 system-on-chip and multiple Artificial Intelligence Engines (AIEs). Our efforts aim to port standard optimization techniques applied in the high-performance realization of GEMM on CPUs to the Versal ACAP. In particular, 1) we address the flexible exploitation of the Versal ACA multi-level memory hierarchy; 2) we delve into the efficient use of the vector units in the AIE tiles, proposing an architecture-specific micro-kernel for mixed precision arithmetic to address the strong demand for adaptive-precision inference in deep learning; and 3) we introduce a parallel design for GEMM that spans multiple AIE tiles, enhancing the computational throughput. We conduct experimental profiling, with up to 32 AI Engines, that demonstrates the high parallel scalability of the solution.

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