Optimizing Threaded MPI Execution on SMP Clusters (2001)
| Venue: | IN PROC. OF 15TH ACM INTERNATIONAL CONFERENCE ON SUPERCOMPUTING |
| Citations: | 23 - 1 self |
BibTeX
@INPROCEEDINGS{Tang01optimizingthreaded,
author = {Hong Tang and Tao Yang},
title = {Optimizing Threaded MPI Execution on SMP Clusters},
booktitle = {IN PROC. OF 15TH ACM INTERNATIONAL CONFERENCE ON SUPERCOMPUTING},
year = {2001},
pages = {381--392},
publisher = {ACM Press}
}
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Abstract
Our previous work has shown that using threads to execute MPI programs can yield great performance gain on multiprogrammed shared-memory machines. This paper investigates the design and implementation of a thread-based MPI system on SMP clusters. Our study indicates that with a proper design for threaded MPI execution, both point-to-point and collective communication performance can be improved substantially, compared to a processbased MPI implementation in a cluster environment. Our contribution includes a hierarchy-aware and adaptive communication scheme for threaded MPI execution and a thread-safe network device abstraction that uses event-driven synchronization and provides separated collective and point-to-point communication channels. This paper describes the implementation of our design and illustrates its performance advantage on a Linux SMP cluster.
