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Using Hierarchical Parallelism to Accelerate the Solution of Many Small Partial Differential Equations
Event Type
Extreme Scale Computing
Heterogeneous Systems
Parallel Programming Languages, Libraries, and Models
Resource Management and Scheduling
Scalable Computing
Registration Categories
TimeWednesday, 11 November 202012:05pm - 12:30pm EDT
LocationTrack 1
DescriptionThis paper presents efforts to improve the hierarchical parallelism of a two scale simulation code. Two methods to improve the GPU parallel performance were developed and compared. The first used the Nvidia Multi-Process Service and the second moved the entire sub-problem loop into a single kernel using Kokkos hierarchical parallelism and a PackedView data structure. Both approaches improved parallel performance with the second method providing the greatest improvements.
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