Fault resilient/fault tolerant computing
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United States of America Patent
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-
Oct 29, 2002
Grant Date -
Feb 28, 2002
app pub date -
Aug 10, 2001
filing date -
Nov 14, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A fault tolerant/fault resilient computer system includes at least two compute elements connected to at least one controller. Each compute element has clocks that operate asynchronously to clocks of the other compute elements. The compute elements operate in a first mode in which the compute elements each execute a first stream of instructions in emulated clock lockstep, and in a second mode in which the compute elements each execute a second stream of instructions in instruction lockstep. Each compute element may be a multi-processor compute element.
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