Stanage Specifications

Operating System and software

OS: CentOS 7.x (binary compatible with RedHat Enterprise Linux 7.x) 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.