The majority of our servers are compute nodes (sometimes also reffered to as execute nodes). We run several 1000 of these with varying capabilities and age.

In general, users are not encouraged to log directly into compute nodes but rather use the HTCondor batch scheduler to run their jobs.

Atlas compute node types

44 nodes with Intel Xeon Silver 4215 CPU

  • Vendor: Sysgen
  • CPU: 2 x 8(16) cores @ 2.5 GHz
  • Memory: 192 GB
  • Installed: 2019
  • 8 x Nvidia V100 or RTX2070Super GPU
  • Total peak performance (CPU): 28.2 TFlops/s
  • Total peak performance (GPU): 2893.0 TFlops/s

444 nodes with AMD EPYC 7452 CPU

  • Vendor: Megware
  • CPU: 2 x 32(64) cores @ 2.35 GHz
  • Memory: 512 GB
  • Installed: 2019
  • Total peak performance (CPU): 1068.4 TFlops/s

550 nodes with Intel Xeon E5-2658v4 CPU

  • Vendor: Go Virtual
  • CPU: 2 x 14(28) cores @ 2.3 GHz
  • Memory: 256 GB
  • Installed: 2016
  • Total peak performance (CPU): 566.7 TFlops/s

280 nodes with Intel Xeon E3-1231v3 CPU

  • Vendor: Megware
  • CPU: 1 x 4(8) cores @ 3.4 GHz
  • Memory: 16 GB
  • Installed: 2013
  • 1 x Nvidia GTX 750 GPU
  • Total peak performance (CPU): 30.5 TFlops/s
  • Total peak performance (GPU): 18705.0 TFlops/s

51 nodes with Intel Xeon E5-1650v2 CPU

  • Vendor: Megware
  • CPU: 1 x 6(12) cores @ 3.5 GHz
  • Memory: 64 GB
  • Installed: 2013
  • Total peak performance (CPU): 8.6 TFlops/s

1370 nodes with Intel Xeon E3-1220v3 CPU

  • Vendor: Megware
  • CPU: 1 x 4 cores @ 3.1 GHz
  • Memory: 16 GB
  • Installed: 2013
  • 1 x Nvidia GTX 750 GPU
  • Total peak performance (CPU): 135.9 TFlops/s
  • Total peak performance (GPU): 92951.0 TFlops/s

430 nodes with Intel Xeon E3-1220v3 CPU

  • Vendor: Megware
  • CPU: 1 x 4 cores @ 3.1 GHz
  • Memory: 16 GB
  • Installed: 2013
  • 1 x Nvidia GT640 GPU
  • Total peak performance (CPU): 42.7 TFlops/s
  • Total peak performance (GPU): 29437.0 TFlops/s

66 nodes with Intel Xeon E5504 CPU

  • Vendor: Sysgen
  • CPU: 1 x 4 cores @ 2.0 GHz
  • Memory: 12 GB
  • Installed: 2010
  • Decommissioned: 2017
  • 2 x Nvidia Tesla C1060 GPU
  • 2 x Nvidia Fermi C2050 GPU
  • Total peak performance (CPU): 2.1 TFlops/s
  • Total peak performance (GPU): 4839.0 TFlops/s

1680 nodes with Intel Xeon X3220 CPU

  • Vendor: Pyramid
  • CPU: 1 x 4 cores @ 2.4 GHz
  • Memory: 8 GB
  • Installed: 2008
  • Decommissioned: 2016
  • Total peak performance (CPU): 64.5 TFlops/s