MSM
Overview
The Multi-Scalar Multiplication (MSM) operation consists of multiplying a vector of finite field elements by a vector of elliptic curve points and summing the resulting vector into a single point. The Pippenger bucketing algorithm is typically applied, and well-documented in existing literature [REF]. The cuSnark library utilizes a generalized version of the winning 2022 zprize MSM implementation, documentation of which can be found here [REF].
Performance
The following table outlines the performance improvements yielded with just the cuSnark MSM employed, showing the (CPU baseline) and accelerated results for the different proof stages in a set of proofs of various sizes. Times are in seconds, obtained on a AMD EPYC 7702 64-Core Processor with 4x NVIDIA GeForce RTX 3090 (24 GB) GPUs.
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