advancing the state of the art in computing

More than 25 years ago, recognizing the role that parallel computers would play in the future of scientific computing, MCS began exploring advanced computer architectures and the design of parallel programming tools to fully exploit the power of those systems.


  • Established the Mathematics and Computer Science Division, previously part of the Applied Mathematics Division.
  • Established the Advanced Computing Research Facility, working with new computer manufacturers at the forefront of computer technology
  • Experimented with nine different innovative designs, most of which offered a startling 64 megabytes of memory
  • Explored new techniques to exploit parallelism in scientific research
  • Held summer institutes, established affiliates programs


  • Began “experimental production” computing with an IBM Scalable POWERparallel System (SP)
  • Worked with IBM to evaluate various configurations and subsequent versions
  • Conducted early experiments demonstrating the ease of porting programs


  • Reorganized as one of the nation’s four high-end resource providers
  • Served as major resource for several Grand Challenge applications


  • Operated a 256-node Linux cluster called Chiba City, with a peak performance of 256 gigaflops



  • Installed a 5.7-teraflop Blue Gene/L system
  • Served as prototype and proving ground for establishment of the ALCF


  • Replaced Jazz with Fusion, with a peak performance of 26 teraflops


  • Installed the 10-petaflops IBM Blue Gene/Q
  • Replaced Fusion with Blues, with a peak performance of 103 petaflops