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ICDCS
1997
IEEE

Multi-threading and Remote Latency in Software DSMs

11 years 4 months ago
Multi-threading and Remote Latency in Software DSMs
This paper evaluates the use of per-node multi-threading to hide remote memory and synchronization latencies in a software DSM. As with hardware systems, multi-threading in software systems can be used to reduce the costs of remote requests by switching threads when the current thread blocks. We added multi-threading to the CVM software DSM and evaluated its impact on performance for a suite of common shared memory programs. Multi-threading resulted in speed improvements of at least 17% in three of the seven applications in our suite, and lesser improvements in the other applications. However, we found that i) good performance is not always achievable transparently for non-trivial applications, ii) multi-threading can negatively interact with DSM operations, iii) multi-threading decreases cache and TLB locality, and iv) any multi-threading speedup is dependent on available work.
Kritchalach Thitikamol, Peter J. Keleher
Added 06 Aug 2010
Updated 06 Aug 2010
Type Conference
Year 1997
Where ICDCS
Authors Kritchalach Thitikamol, Peter J. Keleher
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