Cluster specifications

Izar is an Intel Xeon-Gold based cluster, available to the EPFL research community.

• Peak performance Rpeak: 1’145 TFLOPs
• 2’640 cores total
• 136 GPUs total
• Total RAM: 12.4 TB
• Storage (scratch): 253 TB, max 10 GB/s IO bandwidth
• Infiniband HDR 100 Gb

The cluster is composed of:

• one front end,
• one master node in charge of administration and backup,
• one dedicated data movement/transfer node,
• 70 compute nodes, each with
  • 2 Xeon-Gold processors running at 2.1 GHz, with 20 cores each,
  • 2 NVIDIA V100 PCIe 32 GB GPUs (2×7TFLOPS)
  • 3.2 TB NVMe local drive,
  • 35 nodes with 192 GB of DDR4 RAM,
  • 35 nodes with 384 GB of DDR4 RAM
• 2 compute nodes, each with
  • 2 Xeon-Gold processors running at 2.1 GHz, with 20 cores each,
  • 4 NVIDIA V100 SXM2 32 GB GPUs (4×7.8TFLOPS)
  • 768 GB of DDR4 RAM,
  • 2x 3.2 TB NVMe local drive