4 ms·

It couldn’t keep pace with a Cray for any tasks that weren’t optimized for its architecture. If your problem fit the SIMD model like the genetic algorithms I

• voxadam 3y ago
  Plus, beyond the fascinating architecture, it was a beautiful machine. The Cray-1 and its successors may occupy more historical memory (see: Sneakers (1992)) but the CM-1, CM-2, and to a lesser degree (in my ever so humble opinion), the CM-5 blow Cray's most iconic machines out of the water on the sexiness axis.
  • tvarghese7 3y ago
    Physical appearance or architecturally?
    • jshaqaw 3y ago
      Sadly I never even saw the CM-2 I used. Just got in via telnet.
      • ralphc 3y ago
        If you're in the American Southeast, the Computer Museum of America in Roswell, GA has one on display. I've visited and seen it, along with other supercomputers.
• tvarghese7 3y ago
  Yeah, ours was a fluid dynamics problem that needed information from neighboring cells. So at some point there needed to be data moving between cells and that really killed performance. There was also a global value that need to be computed at each iteration that controlled the simulation speed to ensure the step sizes were not too big. Also the file I/O was horribly slow. We where scaling and dumping raw data to files so what we could do post processing to make movies of the simulations.