SimuTools , Malaga, Spain March 16, 2010. Efficient Simulation of Agent-based Models on Multi-GPU & Multi-Core Clusters. Kalyan S. Perumalla, Ph.D. Senior R&D Manager Oak Ridge National Laboratory Adjunct Professor Georgia Institute of Technology. In a Nut Shell.
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SimuTools, Malaga, Spain
March 16, 2010
Efficient Simulation ofAgent-based Models onMulti-GPU & Multi-Core Clusters
Kalyan S. Perumalla, Ph.D.
Senior R&D ManagerOak Ridge National Laboratory
Adjunct ProfessorGeorgia Institute of Technology
Dramatic improvements in speed
Agent Based Modeling and Simulation (ABMS)
Game of Life
Host initiates “launch” of many SIMD threads
Threads get “scheduled” in batches on GPU hardware
CUDA claims extremely efficient thread-launch implementation
Millions of CUDA threads at once
At any level in the hierarchy, total runtime F is given by:
Most interesting aspect
Cubic in R!
Total Execution Time
B2R can be applied at all levels!
E.g., CUDA Hierarchy
Over 100× speedup with MPI+CUDA
Speedup relative to naïve method with no latency-hiding
Additional material at our webpage:
Discrete Computing Systems