SCHEDULE: NOV 16-21, 2014

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PACC: An Extension of OpenACC for Pipelined Processing of Large Data on a GPU

SESSION: Poster Reception

EVENT TYPE: Posters, Best Poster Finalist

TIME: 5:15PM - 7:00PM

AUTHOR(S):Tomochika Kato, Fumihiko Ino, Kenichi Hagihara

ROOM:New Orleans Theater Lobby

ABSTRACT:

We present a suite of directives, named pipelined accelerator (PACC),
and its implementation for accelerating large-scale computation on a
graphics processing unit (GPU). PACC extends OpenACC to achieve
division of large data that cannot be entirely stored in device
memory. Given a program with PACC directives, our PACC translator
rewrites the program into an OpenACC program such that data is
divided into multiple chunks for accelerated
execution. Furthermore, the generated program processes chunks in a
pipeline so that data transfer between the CPU and GPU can overlap
with computation on the GPU. Some preliminary results are also
presented to show the impact of PACC in terms of the program
execution time and the maximum data size that can be processed
successfully.

Chair/Author Details:

Tomochika Kato - Osaka University

Fumihiko Ino - Osaka University

Kenichi Hagihara - Osaka University

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