SPECaccel 2023: Changes from SPEC ACCEL V1.4

(To check for possible updates to this document, please see http://www.spec.org/accel2023/Docs/ )

Introduction: Who Wants SPECaccel 2023

SPECaccel 2023 (aka version 2.0) is an moderate update to SPEC ACCEL V1.4. While a still widely used suite, especially to test compiler's directive based offload model support, the runtimes on modern accelerators became too short to measure performance. The primary motivation of v2.0 is to update the benchmark workloads to use more memory and run longer to allow for better comparisions.

Overview of changes in v2.0:

Note that other than the addition of metadirectives, small fixes, merging OpenACC and OpenMP, and an OpenMP "loop" schedule, the source remains largely unchanged from v1.4

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