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Programming Languages
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OpenACC vs.OpenMP4: The Strong, the Weak, the Missing to Develop Performance Portable Applications on GPU and Xeon Phi
Abstract:
Learn to develop a unique code base to deal with both NVIDIA GPU and Intel Xeon Phi by using directive-based programming approach (OpenACC and OpenMP4) . We carried out early experiment on ?, the GPU-Phi supercomputer of SJTU CCOE, with CAPS OpenACC compiler and HOMP, the OpenMP4-to-CUDA compiler based on Rose Compiler from LLNL. In this session we will show preliminary results of the evaluation with benchmarks and mini-apps, and then discuss different optimization methods applied, finally we will identify the strong, the weak, the missing features for OpenACC and OpenMP4 to achieve good performance portability on very different architectures.
 
Topics:
Programming Languages, HPC and Supercomputing
Type:
Talk
Event:
GTC Silicon Valley
Year:
2014
Session ID:
S4595
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