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Report No.

Distributed parallel-I/O library for heterogeneous computing environment

Tsujita, Yuichi; Imamura, Toshiyuki; Takemiya, Hiroshi*; Yamagishi, Nobuhiro*

An MPI-2 based distributed parallel-I/O library called Stampi-I/O has been developed using communication infrastructure of Stampi. Stampi is a communication library based on MPI and MPI-2. It has been developed for heterogeneous computing environment as infrastructure of metacomputing. As many applications in computational science handle huge amount of data which one parallel computer can not handle, distributed parallel-I/O libraries have been required for effective handling of such huge data on heterogeneous computing environment. Considering this situation, Stampi-I/O has been designed and developed. In this paper, motivations, architecture and preliminary results of performance measurement of Stampi-I/O are described.



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