Context switching system for a multi-thread execution pipeline loop and method of operation thereof
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United States of America Patent
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Apr 29, 2008
Grant Date -
Aug 28, 2003
app pub date -
Feb 25, 2002
filing date -
Feb 25, 2002
priority date (Note) -
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Abstract
A context switching system for a multi-thread execution pipeline loop having a pipeline latency and a method of operation thereof. In one embodiment, the context switching system includes a context switch requesting subsystem configured to: (1) detect a device request from a thread executing within the multi-thread execution pipeline loop for access to a device having a fulfillment latency exceeding the pipeline latency, and (2) generate a context switch request for the thread. The context switching system further includes a context controller subsystem configured to receive the context switch request and prevent the thread from executing until the device request is fulfilled.
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