+ NASA Home + Ames Home + Sitemap + Staff Directory +Home HIGH END SYSTEMS + Pleiades + Columbia + Schirra + RTJones SGI ALTIX - COLUMBIA SUPERCOMPUTER The Columbia supercluster makes it possible for NASA to achieve breakthroughs in science and engineering for the agency's missions and Vision for Space Exploration. Columbia's highly advanced architecture is also being made available to a broader national science and engineering community. Columbia System Facts Manufacturer - SGI Nodes Type Speed Cache 11 Altix 3700 (512 cores) Madison 1.5 GHz 6MB 3 Altix 3700-BX2 (512 cores) Madison 1.5 GHz 6MB 5 Altix 3700-BX2 (512 cores) Madison 1.6 GHz 9MB 1 Altix 4700 (512 cores) Montecito 1.6 GHz 9MB 1 Altix 4700 (2048 cores) Montecito 1.6 GHz 9MB 2 Altix 4700 (1024 cores) Montvale 1.6 GHz 9MB 23 Total Compute Nodes (14,336 Total Cores) System Architecture 304 compute node cabinets 88.88 teraflop/s theoretical peak (Original 10,240 system - 63 Tflop/s) Subsystems 2 Data Life Cycle (DLM) systems 3 front-end nodes Memory Type - double data rate synchronous dynamic random access memory (DDR SDRAM) Per Processor (core) - 2GB Total Memory - 28,672GB Interconnects NUMALink interconnected single-system image compute nodes Internode InfiniBand - 4x (Single Data Rate, Double Data Rate) 10Gb Ethernet LAN/WAN interconnect 1Gb Ethernet LAN/WAN interconnect Storage Online - DataDirect Networks & LSI RAID, 1PB (raw) 3 SGI CXFS domains Local SGI XFS fileystems Archival - Attached to high-end computing SGI CXFS SAN filesystem Operating Environment Operating system - SUSE Linux Enterprise Job Scheduler - PBS Compilers - Intel Fortran, C, SGI MPI ADDITIONAL INFORMATION + Getting an account at NAS + SGI Altix Documentation + General Info about Columbia + Feedback + Site Help + NASA Privacy Statement, Disclaimer, and Accessibility Certification Editor: Jill Dunbar Webmaster: John Hardman NASA Official: Rupak Biswas + Contact NAS Last Updated: August 26, 2008