Software-Extended Coherent Shared Memory: Performance and Cost
This paper evaluates the tradeoffs involved in the design of the software-extended memory system of Alewife, a multiprocessor architecture that implements coherentsharedmemory through a combination of hardware and software mechanisms. For each block of memory, Alewife implements between zero and fiv...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.44.994 2023-05-15T18:32:40+02:00 Software-Extended Coherent Shared Memory: Performance and Cost David Chaiken Anant Agarwal The Pennsylvania State University CiteSeerX Archives 1994 application/postscript http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.44.994 http://www.eecg.toronto.edu/~tcm/alewife_isca94.ps.Z en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.44.994 http://www.eecg.toronto.edu/~tcm/alewife_isca94.ps.Z Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.eecg.toronto.edu/~tcm/alewife_isca94.ps.Z text 1994 ftciteseerx 2016-01-08T05:14:17Z This paper evaluates the tradeoffs involved in the design of the software-extended memory system of Alewife, a multiprocessor architecture that implements coherentsharedmemory through a combination of hardware and software mechanisms. For each block of memory, Alewife implements between zero and five coherence directory pointers in hardwareand allows software to handle requests when the pointers are exhausted. The software includes a flexible coherence interface that facilitates protocol software implementation. This interface is indispensable for conducting experiments and has proven important for implementing enhancements to the basic system. Simulations of a number of applications running on a complete system (with up to 256 processors) demonstrate that the hybrid architecture with five pointers achieves between 71% and 100% of full-map directory performance at a constant cost per processing element. Our experience in designing the software protocol interfaces and experiments with a. Text The Pointers Unknown |
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English |
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This paper evaluates the tradeoffs involved in the design of the software-extended memory system of Alewife, a multiprocessor architecture that implements coherentsharedmemory through a combination of hardware and software mechanisms. For each block of memory, Alewife implements between zero and five coherence directory pointers in hardwareand allows software to handle requests when the pointers are exhausted. The software includes a flexible coherence interface that facilitates protocol software implementation. This interface is indispensable for conducting experiments and has proven important for implementing enhancements to the basic system. Simulations of a number of applications running on a complete system (with up to 256 processors) demonstrate that the hybrid architecture with five pointers achieves between 71% and 100% of full-map directory performance at a constant cost per processing element. Our experience in designing the software protocol interfaces and experiments with a. |
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The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
David Chaiken Anant Agarwal |
spellingShingle |
David Chaiken Anant Agarwal Software-Extended Coherent Shared Memory: Performance and Cost |
author_facet |
David Chaiken Anant Agarwal |
author_sort |
David Chaiken |
title |
Software-Extended Coherent Shared Memory: Performance and Cost |
title_short |
Software-Extended Coherent Shared Memory: Performance and Cost |
title_full |
Software-Extended Coherent Shared Memory: Performance and Cost |
title_fullStr |
Software-Extended Coherent Shared Memory: Performance and Cost |
title_full_unstemmed |
Software-Extended Coherent Shared Memory: Performance and Cost |
title_sort |
software-extended coherent shared memory: performance and cost |
publishDate |
1994 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.44.994 http://www.eecg.toronto.edu/~tcm/alewife_isca94.ps.Z |
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The Pointers |
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The Pointers |
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http://www.eecg.toronto.edu/~tcm/alewife_isca94.ps.Z |
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http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.44.994 http://www.eecg.toronto.edu/~tcm/alewife_isca94.ps.Z |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766216860298117120 |