Transactions for checkpointing and reverse execution
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United States of America Patent
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Apr 5, 2016
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N/A
app pub date -
Jun 27, 2013
filing date -
Mar 15, 2013
priority date (Note) -
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Abstract
A method of backstepping through a program execution includes dividing the program execution into a plurality of epochs, wherein the program execution is performed by an active core, determining, during a subsequent epoch of the plurality of epochs, that a rollback is to be performed, performing the rollback including re-executing a previous epoch of the plurality of epochs, wherein the previous epoch includes one or more instructions of the program execution stored by a checkpointing core, and adjusting a granularity of the plurality of epochs according to a frequency of the rollback.
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