| Autor: |
Porter, Leo, Laurenzano, Michael A, Tiwari, Ananta, Jundt, Adam, Ward, William A, Campbell, Roy, Carrington, Laura |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
ACM Transactions on Architecture and Code Optimization, vol 11, iss 4 |
| Popis: |
This work presents an end-to-end methodology for quantifying the performance and power benefits of simultaneous multithreading (SMT) for HPC centers and applies this methodology to a production system and workload. Ultimately, SMT’s value system-wide depends on whether users effectively employ SMT at the application level. However, predicting SMT’s benefit for HPC applications is challenging; by doubling the number of threads, the application’s characteristics may change. This work proposes statistical modeling techniques to predict the speedup SMT confers to HPC applications. This approach, accurate to within 8%, uses only lightweight, transparent performance monitors collected during a single run of the application. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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