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Title:
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IMPLEMENTATION OF A PARALLEL NETCDF INTERFACE FOR SEAMLESS COLLECTIVE REMOTE I/O |
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Author(s):
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Yuichi Tsujita |
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ISBN:
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978-972-8924-30-0 |
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Editors:
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Pedro Isaías |
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Year:
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2002 |
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Edition:
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Single |
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Keywords:
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netCDF, parallel netCDF, MPI-I/O, Stampi-I/O, MPI-I/O process |
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Type:
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Short Paper |
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First Page:
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73 |
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Language:
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English |
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Cover:
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Full Contents:
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click to dowload 
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Paper Abstract:
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In scientific applications, netCDF was developed to support a view of data as a collection of self-describing, portable, and array-oriented objects that can be accessed through a simple interface. Recently parallel netCDF has been developed with the help of an MPI-I/O library to realize parallel I/O operations with netCDF data format support. Unfortunately, the same operations in remote I/O between different MPI libraries have not been realized. To realize this mechanism, a remote I/O mechanism of a Stampi library has been introduced in several parallel netCDF interfaces. Stampi is a flexible intermediate library to realize seamless MPI communications and MPI-I/O operations not only inside a computer but also among computers. Implemented collective functions have been evaluated on two interconnected PC clusters, and sufficient performance has been achieved with huge amount of data. |
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