Using ephemeral stores for fine-grained conflict detection in a hardware accelerated STM
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United States of America Patent
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Sep 16, 2014
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app pub date -
Jan 10, 2012
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Jun 27, 2007
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Abstract
A method and apparatus for fine-grained filtering in a hardware accelerated software transactional memory system is herein described. A data object, which may have an arbitrary size, is associated with a filter word. The filter word is in a first default state when no access, such as a read, from the data object has occurred during a pendancy of a transaction. Upon encountering a first access, such as a first read, from the data object, access barrier operations including an ephemeral/private store operation to set the filter word to a second state are performed. Upon a subsequent/redundant access, such as a second read, the access barrier operations are elided to accelerate the subsequent access, based on the filter word being set to the second state to indicate a previous access occurred.
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Patent Owner(s)
- INTEL CORPORATION
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Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Adl-Tabatabai, Ali-Reza | Santa Clara, US | 134 | 4421 |
Jacobson, Quinn | Sunnyvale, US | 21 | 389 |
Saha, Bratin | Santa Clara, US | 90 | 3753 |
Sheaffer, Gad | Haifa, IL | 66 | 1996 |
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