STM with global version overflow handling

STM with global version overflow handling

A software transactional memory system is provided with overflow handling. The system includes a global version counter with an epoch number and a version number. The system accesses the global version counter prior to and subsequent to memory accesses of transactions to validate read accesses of th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DETLEFS DAVID L, TOLTON MATTHEW B, HARRIS TIMOTHY L, LEVANONI YOSSEFF, MAGRUDER MICHAEL M, ZHU WEIRONG
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:A software transactional memory system is provided with overflow handling. The system includes a global version counter with an epoch number and a version number. The system accesses the global version counter prior to and subsequent to memory accesses of transactions to validate read accesses of the transaction. The system includes mechanisms to detect global version number overflow and may allow some or all transactions to execute to completion subsequent to the global version number overflowing. The system also provides publication, privatization, and granular safety properties.