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GTC ON-DEMAND

HPC and Supercomputing
Presentation
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High-Order Discretizations for Geometric Multi-Grid Methods
Abstract:
Join us for a deep-dive analysis of geometric multigrid methods on GPUs. These methods have numerous applications in computer science, including combustion codes based on adaptive mesh refinement techniques. High-order multigrid schemes are actively being explored for production in many linear algebra packages, and may become a commodity within the next few years. We'll discuss performance bottlenecks and key implementation choices for current and future generation GPUs. Our analysis is based on a well-known high-performance multigrid benchmark (HPGMG). Hybrid CPU/GPU implementation using unified memory, high-order stencil optimizations, and multi-GPU scaling will be covered in detail.
 
Topics:
HPC and Supercomputing, Computational Physics
Type:
Talk
Event:
GTC Silicon Valley
Year:
2016
Session ID:
S6248
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