Geodesic
MPI-IO application: an implementation of a mine ventilation model
Numerical methods and programming, Tome 10 (2009) no. 1, pp. 89-95

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The high performance of supercomputers not only allows one to solve today problems faster but also allows one to formulate other problems, earlier not impossible to solve. However, this requires a revision of a programming model because of an increasing amount of the resulting data. MPI being a de facto a standard for distributed memory computing systems allows many options to actually program parallel I/O operations since the publication of the MPI-2 standard definition. However, such capabilities are often neglected when considering the design of applications for simulating a large problem. In this paper we describe some results of practical usage of MPI I/O in the context of gas filtration simulations through a porous mine medium. We also discuss the challenges presented by the scalability of application and performance of file subsystems and also describe how we perform a single process optimization and a parallel code optimization. All tests were run on a SKIF-Siberia computing system, a 566 CPU cluster located at Tomsk State University. This work was supported by the Russian Foundation for Basic Research (project N 08-08-12029-ofi).
Keywords: high-performance computing; hydrodynamics; filtration; parallel I/O; MPI-IO; scalability; data management. 
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     author = {B. L. Petushkeev},
     title = {MPI-IO application: an implementation of a mine ventilation model},
     journal = {Numerical methods and programming},
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     number = {1},
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     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMP_2009_10_1_a26/}
}
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B. L. Petushkeev. MPI-IO application: an implementation of a mine ventilation model. Numerical methods and programming, Tome 10 (2009) no. 1, pp. 89-95. http://geodesic.mathdoc.fr/item/VMP_2009_10_1_a26/