A21: Runtime Support for Concurrent Execution of
Overdecomposed Heterogeneous Tasks
SessionPoster Reception
Author
Event Type
ACM Student Research Competition
Poster
Reception
TimeTuesday, November 14th5:15pm -
7pm
LocationFour Seasons Ballroom
DescriptionWith the rise of heterogeneous systems in high
performance computing, how we utilize accelerators has
become a critical factor in achieving the optimal
performance. We explore several issues with using
accelerators in Charm++, a parallel programming model
that employs overdecomposition. We propose a runtime
support scheme that enables concurrent execution of
heterogeneous tasks and evaluate its performance. Using
a synthetic benchmark that utilizes busy-waiting to
simulate workload, we observe that the effectiveness of
the runtime support varies with the application
characteristics, with a maximum speedup of 4.79x. With a
two-dimensional five-point stencil benchmark designed to
represent a realistic workload, we obtain up to 2.75x
speedup.
