November 2023

Conference Paper

Evaluating the Performance of Integer Sum Reduction on an Intel GPU

By:
Jin, Zheming ; Vetter, Jeffrey S
Page Number:
652-655
Book Title:
2021 IEEE International Parallel and Distributed Processing Symposium Workshops (IPDPSW)
Publication Date:
November 2023
Conference Name:
23rd Workshop on Advances in Parallel and Distributed Computational Models
Conference Location:
Portland, Oregon, United States of America
Conference Sponsor:
IEEE
View DOI Listing:
https://doi.org/10.1109/IPDPSW52791.2021.00099

Abstract

Sum reduction is a primitive operation in parallel computing while SYCL is a promising heterogeneous programming language. In this paper, we describe the SYCL implementations of integer sum reduction using atomic functions, shared local memory, vectorized memory accesses, and parameterized workload sizes. Evaluating the reduction kernels shows that we can achieve 1.4X speedup over the open-source implementations of sum reduction for a sufficiently large number of integers on an Intel integrated GPU.

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