Tuning a CPU-Based Stencil Computation in a DPC++ Multi-Device Environment

Tiago Conceição Oliveira; Murilo Boratto; Antônio Horácio Rodrigues; Orlando Mota Pires; Leonardo Rodrigues Soares

doi:10.34178/jbth.v6iSuppl1.269

Tiago Conceição Oliveira
Murilo Boratto
Antônio Horácio Rodrigues
Orlando Mota Pires
Leonardo Rodrigues Soares

DOI: https://doi.org/10.34178/jbth.v6iSuppl1.269

Keywords: Multi-Device RTM, OneAPI, SYCL, Heterogeneous Computing

Abstract

Reverse Time Migration (RTM) uses the finite-difference (FD) method to compute numerical approximations for the acoustic wave equation. It is a computational bottleneck for RTM applications and therefore needs to be optimized to guarantee timely results and efficiency when allocating resources for hydrocarbon exploration. This article describes our experience reengineering a migrated CUDA-based RTM code to SYCL into a multidevice RTM.