Stanage Specifications

Operating System and software

• OS: SUSE Liberty Linux 7 (previously CentOS 7.9; both binary compatible with RedHat Enterprise Linux 7.9) on all nodes.

• Interactive and batch job scheduling software: Slurm.

• Many applications, compilers, libraries and parallel processing tools. See Software on Stanage.

Networking

• Intel OmniPath Architecture (OPA) (100 Gb/s) to all public nodes.

• Gigabit Ethernet.

General CPU node specifications

152 nodes are publicly available (not exclusive to research groups).

• Machine: Dell PowerEdge R650.

• CPUs: 2 x 32 core Intel Xeon Platinum 8358:

  • Ice Lake processor microarchitecture;

  • Base clock 2.60 GHz; Boost clock 3.40 GHz;

  • Support for AVX-512 vectorisation instructions (simultaneously apply the same operation to multiple values in hardware);

  • Support for Fused Multiply-Add instructions (expedites operations involving the accumulation of products e.g. matrix multiplication);

  • Hyperthreading is disabled on all nodes.

• RAM: 256 GB (i.e. 4.0 GiB / core):

  • 3200 MT/s;

  • DDR4.

Large memory node specifications

To complement the standard nodes with 256GB of memory per node (4GB/core), there are 12 large memory nodes with 1TB (16GB/core), and a further 12 very large nodes with 2TB (32GB/core).

Large memory nodes

12 nodes are publicly available (not exclusive to research groups).

• Machine: Dell PowerEdge R650.

• CPUs: 2 x 32 core Intel Xeon Platinum 8358:

  • Ice Lake processor microarchitecture;

  • Base clock 2.60 GHz; Boost clock 3.40 GHz;

  • Support for AVX-512 vectorisation instructions (simultaneously apply the same operation to multiple values in hardware);

  • Support for Fused Multiply-Add instructions (expedites operations involving the accumulation of products e.g. matrix multiplication);

  • Hyperthreading is disabled on all nodes.

• RAM: 1024 GB (i.e. 16.0 GiB / core):

  • 3200 MT/s;

  • DDR4.

Very large memory nodes

12 nodes are publicly available (not exclusive to research groups).

• Machine: Dell PowerEdge R650.

• CPUs: 2 x 32 core Intel Xeon Platinum 8358:

  • Ice Lake processor microarchitecture;

  • Base clock 2.60 GHz; Boost clock 3.40 GHz;

  • Support for AVX-512 vectorisation instructions (simultaneously apply the same operation to multiple values in hardware);

  • Support for Fused Multiply-Add instructions (expedites operations involving the accumulation of products e.g. matrix multiplication);

  • Hyperthreading is disabled on all nodes.

• RAM: 2048 GB (i.e. 32.0 GiB / core):

  • 3200 MT/s;

  • DDR4.

GPU nodes

A100 GPU node specifications

15 nodes are publicly available (not exclusive to research groups). Prior to December 2022 these were temporarily available in the Bessemer cluster.

• Machine: Dell PowerEdge XE8545.

• CPUs: 2 x 24 core AMD EPYC 7413:

  • Zen 3 processor microarchitecture;

  • Base clock 2.65 GHz; Boost clock 3.60 GHz;

  • Hyperthreading is disabled on all nodes.

• RAM: 512 GB (i.e. 32.0 GiB / core):

  • 3200 MHz;

  • DDR4.

• Local storage: 460 GB boot device (SSD) plus 2.88 TB ‘/scratch’ temporary storage (RAID 0 on SSDs).

• GPUs: 4x NVIDIA A100, each with:

  • High-bandwidth, low-latency NVLink GPU interconnects (3-4x the bandwidth of PCIe for inter-GPU comms)

  • 80GB memory (HBM2e).

H100 GPU node specifications

6 nodes are publicly available (not exclusive to research groups).

• Machine: Dell PowerEdge R7525.

• CPUs: 2 x 24 core AMD EPYC 7413:

  • Zen 3 processor microarchitecture;

  • Base clock 2.65 GHz; Boost clock 3.60 GHz;

  • Hyperthreading is disabled on all nodes.

• RAM: 512 GB (i.e. 32.0 GiB / core):

  • 3200 MHz;

  • DDR4.

• Local storage: 460 GB boot device (SSD) plus 960 GB ‘/scratch’ temporary storage (SSD).

• GPUs: 2x NVIDIA H100, each with:

  • PCIe connectivity (NB 3-4x less bandwidth than NVLink for inter-GPU comms)

  • 80GB memory (HBM2e).

Non-worker nodes

• Two login nodes (for resilience).

• Other nodes to provide:

  • Lustre parallel filesystem.

  • Slurm scheduler ‘head’ nodes.

Total capacity

With all workers including GPU and large memory nodes:

• Worker nodes: 204.

• CPU cores: 12608.

  • Intel Cores: 11264.

  • AMD Cores: 1344.

• Total memory: 90112 GiB.

• GPUs: 76.

• Fast network filesystem (Lustre): 2 PiB.