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Computer Architecture

Computer Architecture. CBM - Contributions. Patrick R. Haspel haspel@uni-mannheim.de Computer Architecture Group University of Mannheim, Germany. Computer Architecture. Research Areas Parallel- and Cluster computing innovative Computer Architectures and Parallel Computing

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Computer Architecture

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  1. Computer Architecture CBM - Contributions Patrick R. Haspel haspel@uni-mannheim.de Computer Architecture Group University of Mannheim, Germany

  2. Computer Architecture • Research Areas • Parallel- and Cluster computing • innovative Computer Architectures and Parallel Computing • low latency Interconnection Networks for Cluster Communication • chip design using leading edge EDA Tools (proven cell based design flow) • Actual projects • ATOLL: Networkinterface for SANs • OASE: Optical Datatransmission SEED2002: Semi custom design flow Education

  3. OASE OASE - Optical Advanced SErializer

  4. Motivation • Optical Interconnects deliver high bandwidth • electro/optical conversion is still expensive (but will become cost effective if mass product) • many application areas (2.5Gbit/s) • Gigabit Ethernet 1X, 10X 100m • Infiniband 10-25m • ATOLL (SAN) 1-5m • Hypertransport 0,1-1,5m (in the box) • Parallel Computing - Cluster Computing • Physical Experiments (THC, Alice, CERN)

  5. Architecture of OASE • Goal: fully integrated system • integration of all required parts for bidirectional optical transmission • serialization, encoding, deserialization, decoding • high speed serializer with laser driver and CML output • high speed deserializer with amplifier and photo detector input • IP Cell for replication of multiple transmitter and receiver • 0.18um UMC CMOS Technology • cost-effective interface to VCSEL

  6. OASE Architecture • Chip Interface

  7. Optomechanics of OASE • Chip Top View

  8. Optomechanics of OASE • Direct VCSEL Attachment Patent pending

  9. State of Project • Hardware • silicon proven • final measurements in progress • => ready for volume production • Optics • concept of optomechanics (patent pending) • first prototype tests and parameter selection

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