MPI Runtime Error Detection with MUST: Advances in Deadlock Detection
The widely used Message Passing Interface (MPI) is complex and rich. As a result, application developers require automated tools to avoid and to detect MPI programming errors. We present the Marmot Umpire Scalable Tool (MUST) that detects such errors with significantly increased scalability. We pres...
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Published in | Scientific programming Vol. 21; no. 3-4; pp. 109 - 121 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Egypt
Hindawi Publishing Corporation
2013
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Subjects | |
Online Access | Get full text |
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Summary: | The widely used Message Passing Interface (MPI) is complex and rich. As a result, application developers require automated tools to avoid and to detect MPI programming errors. We present the Marmot Umpire Scalable Tool (MUST) that detects such errors with significantly increased scalability. We present improvements to our graph-based deadlock detection approach for MPI, which cover future MPI extensions. Our enhancements also check complex MPI constructs that no previous graph-based detection approach handled correctly. Finally, we present optimizations for the processing of MPI operations that reduce runtime deadlock detection overheads. Existing approaches often require (
p
) analysis time per MPI operation, for
p
processes. We empirically observe that our improvements lead to sub-linear or better analysis time per operation for a wide range of real world applications. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 ObjectType-Conference-3 SourceType-Conference Papers & Proceedings-2 USDOE AC52-07NA27344; 287703 |
ISSN: | 1058-9244 1875-919X |
DOI: | 10.1155/2013/314971 |