Token passing scheme for multithreaded multiprocessor system
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United States of America Patent
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N/A
Issued Date -
Jul 5, 2007
app pub date -
Dec 30, 2005
filing date -
Dec 30, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A token passing mechanism reduces unnecessary thread stalls in a multithreaded microprocessor system. In a multithreaded microprocessor system, in order processing for critical sections is managed through the use of tokens with access to each critical section restricted to the thread having the token associated with the critical section. A token handler maintains a token skip indicator per token that allows a thread that does not need a critical section to forward the token associated with that critical section to a next thread prior to reaching the critical section.
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