System for method for performing a context switch operation in a massively parallel computer system
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United States of America Patent
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Apr 4, 2000
Issued Date -
N/A
app pub date -
Aug 21, 1997
filing date -
May 7, 1992
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Abstract
A parallel computer comprises a plurality of processing elements and a control processor all interconnected by a communications network. The control processor and the processing elements process a plurality of user programs, with the control processor and the processing elements processing each user program in parallel. The control processor, while processing each user program, generates user program processing commands and transfers them to the processing elements over the communications network, and each the processing element processes data associated with a particular user program in response to each user program processing command received from the communications network. The control processor periodically further generates a context switch command to enable the processing elements to, in parallel, perform a context switch operation, in which they switch processing of a user program they are currently processing and begin processing of another user program.
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