Please join us for the CUP-ECS Seminar, “Recent Development of Multigrid Solvers in HYPRE on Modern Heterogeneous Computing Platforms,” presented by Ruipeng Li, Lawrence Livermore National Laboratory.

Event Details: Friday, April 9th, 12 p.m. PST/1 p.m. MST/ 3 p.m. EST via Zoom. Contact Holley-Beeland@utc.edu for Zoom details.

Seminar
Friday, April 9th, 3 p.m. EST

Recent Development of Multigrid Solvers in HYPRE on Modern Heterogeneous Computing Platforms
Ruipeng Li, Lawrence Livermore National Laboratory

Abstract: Modern many-core processors such as the graphics processing units (GPUs) are becoming an integral part of many high-performance computing systems nowadays. These processors yield enormous raw processing power in the form of massive SIMD parallelism. Accelerating multigrid methods on GPUs has drawn a lot of research attention in recent years. For instance, in recent releases of the HYPRE package, the structured multigrid solvers (SMG, PFMG) and the algebraic multigrid (AMG) solver (BoomerAMG) have full GPU-support for both the setup and solve phases. In this talk, we will provide an overview of the GPU-acceleration in HYPRE, discuss the strategies of porting HYPRE to NVIDIA GPUs, managing heterogeneous memory and optimizing performance, and present our current work on porting HYPRE to AMD and Intel GPUs and new algorithms in AMG setup. Numerical results as well as future work will also be included.

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