Title: High-performance parallel processors based on star-coupled wavelength division multiplexing optical interconnects

Abstract

As the performance of individual elements within parallel processing systems increases, increased communication capability between distributed processor and memory elements is required. There is great interest in using fiber optics to improve interconnect communication beyond that attainable using electronic technology. Several groups have considered WDM, star-coupled optical interconnects. The invention uses a fiber optic transceiver to provide low latency, high bandwidth channels for such interconnects using a robust multimode fiber technology. Instruction-level simulation is used to quantify the bandwidth, latency, and concurrency required for such interconnects to scale to 256 nodes, each operating at 1 GFLOPS performance. Performance scales have been shown to .apprxeq.100 GFLOPS for scientific application kernels using a small number of wavelengths (8 to 32), only one wavelength received per node, and achievable optoelectronic bandwidth and latency.

Inventors:

Deri, Robert J ^[1]; DeGroot, Anthony J ^[2]; Haigh, Ronald E ^[3]

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+ Show Inventor Affiliations

1. Pleasanton, CA
2. Castro Valley, CA
3. Arvada, CO

Issue Date:

Tue Jan 01 00:00:00 EST 2002

Research Org.:

Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

OSTI Identifier:

874546

Patent Number(s):

6411418

Assignee:

The Regents of the University of California (Oakland, CA)

Patent Classifications (CPCs):

H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04J - MULTIPLEX COMMUNICATION

H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04Q - SELECTING

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H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04J - MULTIPLEX COMMUNICATION

H04J14/0226 - {Fixed carrier allocation, e.g. according to service}
H04J14/0246 - {using one wavelength per ONU}
H04J14/025 - {using one wavelength per ONU, e.g. for transmissions from-ONU-to-OLT or from-ONU-to-ONU}
H04J14/0282 - {WDM tree architectures}

H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04Q - SELECTING

H04Q11/0062 - {Network aspects}
H04Q2011/0092 - {Ring}
H04Q2011/0094 - {Star}

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DOE Contract Number:  

W-7405-ENG-48

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

high-performance; parallel; processors; based; star-coupled; wavelength; division; multiplexing; optical; interconnects; performance; individual; elements; processing; systems; increases; increased; communication; capability; distributed; processor; memory; required; fiber; optics; improve; interconnect; attainable; electronic; technology; considered; wdm; optic; transceiver; provide; latency; bandwidth; channels; robust; multimode; instruction-level; simulation; quantify; concurrency; scale; 256; nodes; operating; gflops; scales; shown; apprxeq100; scientific; application; kernels; wavelengths; 32; received; node; achievable; optoelectronic; fiber optic; memory element; individual elements; parallel processor; processing systems; /359/