Scalar

• IBM SP

  • RISC-based distributed-memory multi-processor
  • Omega switch, message passing
    • 200 MHz, 4 ops/cycle, 800 Mflop/s
    • 2 processors/node
    • ASCI’s machine: 5836 processors

• SGI Origin 2000

  • Distributed shared memory, CC-NUMA, message passing
  • Crossbar (4 proc/node), nodes hypercubed
    • 500 Mflop/s
    • 4 processos/node (crossbar), Hypercubed
    • ASCI’s machine: 6144 processors

• Sun Enterprise

  • SMP 64 way crossbar
    • 800 Mflop/s

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