Culises: A Library for Accelerated CFD on Hybrid GPU-CPU Systems
Culises: A Library for Accelerated CFD on Hybrid GPU-CPU Systems
Culises: A Library for Accelerated CFD on Hybrid GPU-CPU Systems
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Example resultsDrivAER 22M grid cells• Speedup by adding multiple <strong>GPU</strong>s (1-1 linkage)GAMG solver vs AMGPCG solver# of <strong>CPU</strong>s3 <strong>CPU</strong>s4 <strong>CPU</strong>s6 <strong>CPU</strong>s8 <strong>CPU</strong>s# of <strong>GPU</strong>s added+3 <strong>GPU</strong>s+4 <strong>GPU</strong>s+6 <strong>GPU</strong>s+8 <strong>GPU</strong>sSpeedup s 1.56 1.58 1.54 1.42Speedup linear solver a 3.4 2.81 2.91 2.33Fracti<strong>on</strong> f 0.60 0.59 0.57 0.50Theoretical max speedups max2.50 2.43 2.33 2.00Efficiency E 62% 65% 66% 71%• Utilizati<strong>on</strong> not optimalFurther optimizati<strong>on</strong> under developmentn-1 linkage between <strong>CPU</strong>-<strong>GPU</strong>Slide 18<str<strong>on</strong>g>Culises</str<strong>on</strong>g> - A <str<strong>on</strong>g>Library</str<strong>on</strong>g> <str<strong>on</strong>g>for</str<strong>on</strong>g> <str<strong>on</strong>g>Accelerated</str<strong>on</strong>g> <str<strong>on</strong>g>CFD</str<strong>on</strong>g> <strong>on</strong> <strong>Hybrid</strong> <strong>GPU</strong>-<strong>CPU</strong> <strong>Systems</strong>B. Landmann
Change language