SPECaccel ® 2023

The SPECaccel® 2023 benchmark suite tests performance with computationally intensive parallel applications running under the OpenACC and OpenMP target offloading APIs. The suite exercises the performance of the accelerator, host CPU, memory transfer between host and accelerator, support libraries and drivers, and compilers.

The current version of the benchmark suite is V2.0.18, released in October 2024, which is primarily a bug fix release.

Benchmark tests

The benchmark suite uses many of the original benchmarks from SPEC ACCEL V1.4 with increased workload sizes and runtime to better measure modern accelerators. It contains 12 application benchmarks ported to use either OpenACC, OpenMP using "loop" constructs, OpenMP with "distribute" constructs favoring collapsing all loop levels, and OpenMP with "distribute" applied to outer loops and "simd" applied to inner loops. The choice of model is selected by the user based on the compiler and accelerator they are using. Models may be mixed in peak results.

SPECaccel 2023 includes benchmarks from NAS Parallel Benchmarks (NPB), SPEC OMP® 2012, Parboil benchmark from the IMPACT Research Group of the University of Illinois at Urbana-Champaign and others derived from high-performance computing (HPC) applications.

Results

Submitted Results
Results for all the SPECaccel® benchmark metrics; includes all of the results submitted to SPEC from the SPEC member companies and other licensees of the benchmark.

Documentation

• Documentation overview
• System requirements
• Installation guide
• Explanation of the fields in a result disclosure
• Run and reporting rules
• Known issues
• Requesting technical support

Related Publications

Publications based on the SPECaccel benchmark suite can be found here.