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System Description



  • 5x Dell R730 server
    • 2x Intel Xeon E5-2698v4 (20-core @ 2.20GHz-3.60GHz)
    • 256GB DDR4 RAM
    • 1x NVIDIA Tesla K80
      • 2x 2496 CUDA Cores (Dual GPU design)
      • 2x 12GB GDDR5
    • Mellanox ConnectX-4 InfiniBand EDR 100Gb/s
    • Intel X520 10Gb/s Ethernet SFP+
    • 400GB Intel SSD
  • 5x 800GB Intel SSD in RAID 5 on chief1 as shared home
  • 1x Mellanox SB7890 100Gb/s InfiniBand EDR switch
  • 1x Dell 10GbE SFP+ switch (currently unused)
  • 1x 1GbE switch as internal management network
  • 2x Geist RCXRN102-102D20TL5-D PDU with monitor capabilities

*Temporary config for ongoing RoCE testing:

  • ConnectX-4 adapters are set to Ethernet mode
  • 100GbE switch


  • Currently, the system only accepts login from NCSA computers. Offsite access (except NCSA VPN) has been blocked. Access from campus computers will be set up in the futureAccess to the system is restricted to the University of Illinois Student Cluster Competition Team. Visit to learn more about the team.
  • To run jobs on the system, use the slurm system. Direct SSH access to compute nodes has been blocked.
    • <add slurm usage notes>

Contact us

Request access to ISL resources: Application

Contact ISL staff: Email Address

Visit: NCSA, room 30305E3050E