| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
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| Research Abstract |
Parallel I/O interface in the MPI standard named MPI-IO provides collective parallel I/O. We have developed two pipelined processing implementations based on an existing original implementation by using(1) multithreaded technique with the help of Pthreads and (2) asynchronous I/O APIs, and both implementations have outperformed the original implementation. Furthermore, we have addressed to utilize a multiple buffering mechanism to minimize idle times of each process, and it has outperformed the original one.
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