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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Santhanaraman, G. Narravula, S. Panda, D.K. |
| Copyright Year | 2008 |
| Description | Author affiliation: Dept. of Comput. Sci. & Eng., Ohio State Univ., Columbus, OH (Santhanaraman, G.; Narravula, S.; Panda, D.K.) |
| Abstract | Scientific computing has seen an immense growth in recent years. MPI has become the de facto standard for parallel programming model for distributed memory systems. MPI-2 standard expanded MPI to include onesided communications. Computation and communication overlap is an important goal for one-sided applications. While the passive synchronization mechanism for MPI-2 one-sided communication allows for good overlap, the actual overlap achieved is often limited by the design of both the MPI library and the application. In this paper we aim to improve the performance of MPI-2 one-sided communication. In particular, we focus on the following important aspects: (i) designing one-sided passive synchronization (direct passive) support using InfiniBand atomic operations to handle both exclusive as well as shared locks (ii) enhancing one-sided communication progress to provide scope for better overlap that one-sided applications can leverage. (iii) study the overlap potential of passive synchronization and its impact on applications. We demonstrate the possible benefits of our approaches for the MPI-2 SPLASH LU application benchmark. Our results show an improvement of up to 87% for a 64 process run over the existing design. |
| Starting Page | 1 |
| Ending Page | 11 |
| File Size | 247433 |
| Page Count | 11 |
| File Format | |
| ISBN | 9781424416936 |
| ISSN | 15302075 |
| DOI | 10.1109/IPDPS.2008.4536286 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2008-04-14 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Parallel programming Power system modeling Scientific computing Communication standards Libraries Message passing Sun Computer science Design engineering Computational modeling |
| Content Type | Text |
| Resource Type | Article |
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