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Reproducibility in a multiprocessor system

Patent ·
OSTI ID:1108971

Fixing a problem is usually greatly aided if the problem is reproducible. To ensure reproducibility of a multiprocessor system, the following aspects are proposed; a deterministic system start state, a single system clock, phase alignment of clocks in the system, system-wide synchronization events, reproducible execution of system components, deterministic chip interfaces, zero-impact communication with the system, precise stop of the system and a scan of the system state.

Research Organization:
ORNL (Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States))
Sponsoring Organization:
USDOE
Assignee:
International Business Machines Corporation (Armonk, NY)
Patent Number(s):
8,595,554
Application Number:
12/774,475
OSTI ID:
1108971
Country of Publication:
United States
Language:
English

References (4)

Packaging the Blue Gene/L supercomputer journal March 2005
Blue Gene/L compute chip: Control, test, and bring-up infrastructure journal March 2005
Durable memory RS/6000 system design conference January 1994
Blue Gene/L compute chip: Synthesis, timing, and physical design journal March 2005

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