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Profiling General Purpose GPU Applications

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5 Author(s)
Bruno Rocha Coutinho ; Dept. of Comput. Sci., Univ. Fed. de Minas Gerais, Belo Horizonte, Brazil ; George Luiz Medeiros Teodoro ; Rafael Sachetto Oliveira ; Dorgival Olavo Guedes Neto
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We are witnessing an increasing adoption of GPUs for performing general purpose computation, which is usually known as GPGPU. The main challenge in developing such applications is that they often do not fit in the model required by the graphics processing devices, limiting the scope of applications that may be benefit from the computing power provided by GPUs. Even when the application fits GPU model, obtaining optimal resource usage is a complex task. In this work we propose a profiling tool for GPGPU applications. This tool use a profiling strategy based on performance predicates and is able to quantify the major sources of performance degradation while providing hints on how to improve the applications. We used our tool in CUDA programs and were able to understand and improve their performance.

Published in:

Computer Architecture and High Performance Computing, 2009. SBAC-PAD '09. 21st International Symposium on

Date of Conference:

28-31 Oct. 2009