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Inter-process communication for parallel computations of wavelet transforms on Hitachi SR2201 supercomputer

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2 Author(s)
A. Smyk ; Polish-Japanese Inst. of Inf. Technol., Warsaw, Poland ; M. Tudruj

The paper presents results of experiments which studied the impact of communication control preprocessing on efficiency of parallel programs which compute two-dimensional wavelet transforms on multiprocessor computer Hitachi SR2201. The transforms are computed using the fast Mallat algorithm. Two communication models were applied in the experiments: the MPI persistent communication requests and the Remote-DMA communication based on multiple buffering areas with the reuse of the transmission control word. It has been shown that using the Remote-DMA communication with the preprocessed communication control infrastructure important speed-up of program execution can be obtained

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Parallel Computing in Electrical Engineering, 2000. PARELEC 2000. Proceedings. International Conference on

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