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Title: Multiprocessor system with multiple concurrent modes of execution

A multiprocessor system supports multiple concurrent modes of speculative execution. Speculation identification numbers (IDs) are allocated to speculative threads from a pool of available numbers. The pool is divided into domains, with each domain being assigned to a mode of speculation. Modes of speculation include TM, TLS, and rollback. Allocation of the IDs is carried out with respect to a central state table and using hardware pointers. The IDs are used for writing different versions of speculative results in different ways of a set in a cache memory.
Authors:
; ; ; ; ;
Publication Date:
OSTI Identifier:
1333218
Report Number(s):
9,501,333
14/143,783
DOE Contract Number:
B554331
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Dec 30
Research Org:
International Business Machines Corporation, Armonk, NY (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING