Ian D. MacIntyre

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Optimistically synchronized parallel discrete-event simulation is based on the use of communicating sequential processes. Optimistic synchronization means that the processes proceed under the assumption that a synchronized execution schedule is fortuitous. Periodic checkpointing of the state of a process allows the process to roll back to an earlier state(More)
Optimistically synchronized parallel discrete-event simulation is based on the use of communicating sequential processes. Optimistic synchronization means that the processes execute under the assumption that synchronization is fortuitous. Periodic checkpointing of the state of a process allows the process to roll back to an earlier state when(More)
In [20], Reynolds presents an overview of (distributed) parallel simulation synchronization algorithms. Although, as Reynolds argues, there is a ‘‘spectrum’’ of synchronization algorithms, it is conventional to consider algorithms as being either optimistic or conservative. Conservative algorithms satisfy the property that no logical process (LP) receives(More)
This paper examines the effects of multithreaded pipelining on the CPI (cycles per instruction) of a RISC processor. The desired CPI in a conventional (single-threaded) RISC processor is one instruction per cycle. However, the CPI is typically more than one because of data hazards, control hazards, and resource hazards in the pipeline. A multi-threaded(More)
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