理化学研究所 計算科学研究センター

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第144回 第2部

第144回 第2部
日時: 2018年8月24日(金)、15:15 – 16:00
場所: R-CCS 6階講堂

・講演題目:Performance Evaluation of Application Kernel using ARM Scalable Vector Extension
・講演者:小田嶋 哲哉(アーキテクチャ開発チーム)
※発表・スライド共に英語

講演要旨: 詳細を見る

Recent CPU architectures support wide SIMD instructions with extended vector lengths. As many operations can be executed in one instruction, high performance processing is expected. ARM has announced the Scalable Vector Extension (SVE), which is an extended SIMD instruction set. The most significant feature of SVE is uniform support for vector lengths from 128 bits to 2048 bits. It realizes Vector Length Agnostic programming which does not depend on vector length.
The Arm processor designed for the post-K supercomputer will be equipped with this SVE features for SIMD acceleration.
In this talk, I will introduce an overview of ARM SVE. Then, I examine the effect of vector length and hardware resources in the performance and the runtime power consumption of benchmarks with multiple vector lengths.