Arctur-2 is organized in 3 different partitions available for you to use:

compute (regular nodes)

The 'compute' partition is made out of 14 nodes, with the names node01 to node14. This is the default partition and your jobs will run on it if not specified otherwise.

• CPU architecture: Broadwell
• CPU: 2 x Xeon E5-2690 v4 @2,60GHz
• Cores per node: 28 (2x14)
• RAM: 128GB (4,57GB per core)
• Interconnect: 2x25Gbps Ethernet

gpu (GPU nodes)

he 'gpu' partition consists of 8 nodes (gpu01 to gpu08). The only difference with compute nodes is that they each have 4 NVIDIA Tesla M60 GPUs. The Tesla M60 is a very powerfull GPU as it is made out of two physical NVIDIA Maxwell GPUs with combined 16GB of memory. Many aplications perceive the card as two separate GPUs, essentially having 8 GPUs per node.

• CPU architecture: Broadwell
• CPU: 2 x Xeon E5-2690 v4 @2,60GHz
• Cores per node: 28 (2x14)
• RAM: 128GB (4,57GB per core)
• Interconnect: 2x25Gbps Ethernet
• GPU: 4x nVidia Tesla M60

bigmem (High-memory nodes)

The 'bigmem' nodes also have 28 CPU cores, but they are clocked a bit lower, at 1.7GHz. As you can imagine, they make up for it by having 1TB of DDR4 RAM and 2 480GB local SSD disks.

• CPU architecture: Broadwell
• CPU: 2 x Xeon E5-2650L v4 @1,70GHz
• Cores per node: 28 (2x14)
• RAM: 1024GB (36,57 per core)
• Interconnect: 2x25Gbps Ethernet

Your home folder is located on a shared NFS, which consists of fast SSD disks. The default limits are 100GB per user, but if you need more feel free to contact support.

All the nodes and the filesystem are interconnected with a 2x25GbE connection.