Hybrid multiprocessing in OPTIMUL: A multiprocessor for distributed and shared memory multiprocessing with WDM optical fiber interconnections

Conference · Sat Dec 31 04:00:00 EST 1994

OSTI ID:98903

Ghose, K; Horsell, R K; Singhvi, N ^[1]

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1. State Univ. of New York, Binghamton, NY (United States)

We present the key features of OPTIMUL (OPTically Interconnected MULtiprocessor) - a multiprocessor architecture that implements a distributed share memory mechanism using wavelength division multiplexes (WDM) fiber optic buses. The OPTIMUL architecture also supports distributed memory style multiprocessing using the same high-speed message passing mechanisms that implement distributed shared memory. We show the efficiency of the resulting design by presenting the results of a fairly detailed trace-driven simulation of the performance of the proposed interconnection. We also briefly mention some of the engineering issues involved in the design of the WDM fiber bus. Our results seem to indicate that a WDM optical bus with 4 to 5 channels can provide linearly scalable performance for up to 150 CPUs.

• OSTI ID: 98903
• Report Number(s): CONF-940856--; CNN: Grant ECD-9108850
• Country of Publication: United States
• Language: English

Related Subjects

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ALGORITHMS
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COMPUTER ARCHITECTURE
COMPUTER NETWORKS
DESIGN
PARALLEL PROCESSING