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Nonuniformly communicating noncontiguous data: A case study with PETSc and MPI

by P. Balaji, D. Buntinas, S. Balay, B. Smith, R. Thakur - In 21th International Parallel and Distributed Processing Symposium (IPDPS 2007 , 2007
"... Due to the complexity associated with developing parallel applications, scientists and engineers rely on highlevel software libraries such as PETSc, ScaLAPACK and PESSL to ease this task. Such libraries assist application developers by providing abstractions for mathematical operations, data represe ..."
Abstract - Cited by 7 (4 self) - Add to MetaCart
optimally. However, this places additional overhead on the underlying communication library by making the data layout noncontiguous in memory and communication volumes (data transferred to each process) nonuniform. In this paper, we analyze the overheads associated with these two aspects (noncontiguous data

Abstract Nonuniformly Communicating Noncontiguous Data: A Case Study with PETSc and MPI ∗†

by P. Balaji, D. Buntinas, S. Balay, B. Smith, R. Thakur
"... Due to the complexity associated with developing parallel applications, scientists and engineers rely on high-level software libraries such as PETSc, ScaLAPACK and PESSL to ease this task. Such libraries assist developers by providing abstractions for mathematical operations, data representation and ..."
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(noncontiguous data layouts and nonuniform communication volumes) in the context of the PETSc software toolkit over the MPI communication library. We describe the issues with the current approaches used by MPICH2 (an implementation of MPI), propose different approaches to handle these issues and evaluate

A Case Study with PETSc and MPI

by P. Balaji, D. Buntinas, S. Balay, B. Smith, R. Thakur, W. Gropp, P. Balaji, D. Buntinas, S. Balay, B. Smith, R. Thakur
"... Due to the complexity associated with developing parallel applications, scientists and engineers rely on high-level software libraries such as PETSc, ScaLAPACK and PESSL to ease this task. Such libraries assist developers by providing abstractions for mathematical operations, data representation and ..."
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(noncontiguous data layouts and nonuniform communication volumes) in the context of the PETSc software toolkit over the MPI communication library. We describe the issues with the current approaches used by MPICH2 (an implementation of MPI), propose different approaches to handle these issues and evaluate

Abstract Nonuniformly Communicating Noncontiguous Data: A Case

by Study Petsc, P. Balaji, D. Buntinas, S. Balay, B. Smith, R. Thakur
"... Due to the complexity associated with developing parallel applications, scientists and engineers rely on high-level software libraries such as PETSc, ScaLAPACK and PESSL to ease this task. Such libraries assist developers by providing abstractions for mathematical operations, data representation and ..."
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(noncontiguous data layouts and nonuniform communication volumes) in the context of the PETSc software toolkit over the MPI communication library. We describe the issues with the current approaches used by MPICH2 (an implementation of MPI), propose different approaches to handle these issues and evaluate

List of Tables...........................

by Catherine Rose, Mills Olschanowsky, Catherine Rose, Mills Olschanowsky , 2011
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Results 1 - 5 of 5