SCHEDULE: NOV 10-16, 2012
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Bamboo - Translating MPI Applications to a Latency-Tolerant, Data-Driven Form
SESSION: Compiler-Based Analysis and Optimization
EVENT TYPE: Papers
TIME: 10:30AM - 11:00AM
SESSION CHAIR: Xipeng Shen
AUTHOR(S):Tan Nguyen, Pietro Cicotti, Eric Bylaska, Dan Quinlan, Scott Baden
We present Bamboo, a custom source-to-source translator that transforms MPI C source into a data-driven form that automatically overlaps communication with available computation. Running on up to 98304 processors of NERSC’s Hopper system, we observe that Bamboo’s overlap capability speeds up MPI implementations of a 3D Jacobi iterative solver and Cannon’s matrix multiplication. Bamboo’s generated code meets or exceeds the performance of hand optimized MPI, which includes split-phase coding, the method classically employed to hide communication. We achieved our results with only modest amounts of programmer annotation and no intrusive reprogramming of the original application source.
Xipeng Shen (Chair) - College of William & Mary
Tan Nguyen - University of California, San Diego
Pietro Cicotti - University of California, San Diego
Eric Bylaska - Pacific Northwest National Laboratory
Dan Quinlan - Lawrence Livermore National Laboratory
Scott Baden - University of California, San Diego