P79: Porting the Opacity Client Library to a CPU-GPU
Cluster Using OpenMP 4.5
SessionPoster Reception
Event Type
ACM Student Research Competition
Poster
Reception
TimeTuesday, November 14th5:15pm -
7pm
LocationFour Seasons Ballroom
DescriptionThe poster accompanying this summary exhibits our
experience porting the Opacity client library to IBM’s
“Minsky” nodes using OpenMP 4.5. We constructed a
GPU-friendly container class that mimics existing
library functionality. We benchmarked our implementation
on Lawrence Livermore National Laboratory’s (LLNL)
RZManta, a Minsky cluster. In our benchmarks on a single
POWER8 CPU and Tesla P100 GPU, we observed up to a 4x
speedup including CPU-GPU data transfers and up to a 30x
speedup excluding data transfers. Optimizing to reduce
register pressure and increase occupancy may improve
speedups. Our results demonstrate a successful and
beneficial library port to the CPU-GPU
architecture.
