Multi-processor time alignment control system

Details Multi-processor time alignment control system Multi-processor time alignment control system

1980-08-11

1983-07-05

Nusbaum, Mark E.

Boots, shoes, and leggings

G06F 100

Patent

active

043921965

ABSTRACT:
In multiprocessor systems, and especially in multiprocessor emulation systems, time alignment between the individual processors is accomplished by using a time window established in a Local Pseudo-Time Accumulator (LPA) at each processor and a time reference hereinafter referred to as Master Pseudo Time (MPT). During the run time, any processor which is within the time frame of the window may continue execution. Any processor which falls behind the window must halt the advance of the Master Pseudo Time untl the processor can execute long enough to move back into the window. Any processor which moves ahead of the window must enter an idle state until the Master Pseudo Time advances enough for the processing element to move back into the window.

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patent: 3761884 (1973-09-01), Avsan
patent: 3810119 (1974-05-01), Zieve
patent: 3921149 (1975-11-01), Kreis
patent: 3932843 (1976-01-01), Trelut et al.
patent: 4077058 (1978-02-01), Appell et al.
patent: 4084228 (1978-04-01), Dufond et al.

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