PoS - Proceedings of Science
Volume 396 - The 38th International Symposium on Lattice Field Theory (LATTICE2021) - Oral presentation
Implementation of the conjugate gradient algorithm for heterogeneous systems
S. Cali*, W. Detmold, G. Korcyl, P. Korcyl and P. Shanahan
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Pre-published on: May 16, 2022
Published on:
Abstract
Lattice QCD calculations require significant computational effort, with the dominant fraction of resources typically spent in the numerical inversion of the Dirac operator. One of the simplest
methods to solve such large and sparse linear systems is the conjugate gradient (CG) approach. In this work we present an implementation of CG that can be executed on different devices, including CPUs, GPUs, and FPGAs. This is achieved by using the SYCL/DPC++ framework, which allows the execution of the same source code on heterogeneous systems.
DOI: https://doi.org/10.22323/1.396.0507
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