| 摘要 |
A system that executes a process, the system including a plurality of subsystems, each of which performs a stage of the process, each of the subsystems configured to perform one of a first subset of N<SUB>1 </SUB>of the stages, where N<SUB>1 </SUB>is greater than 1 and to change the stage of the subset being performed on receipt of a change instruction; wherein, in the event that one of the subsystems fails, at least one of the remaining subsystems synchronously changes to performing the respective stage of the failed subsystem without requiring transfer of data relating the respective stage to the said at least one remaining subsystems, and when a subsystem changes to performing a different stage, the system reconfigures the subsystem to be capable of performing a second subset N<SUB>2 </SUB>of the stages where N<SUB>1 </SUB>and N<SUB>2 </SUB>have the same number of stages.
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