Systems

Sapelo2

Sapelo2 is a Linux cluster that runs a 64-bit CentOS 7.5 operating system and it is managed using Foreman and Puppet. Two physical login nodes are available, with Intel Xeon E5-2680 v3 (Haswell) processors and 128GB of RAM and 24 cores per node.

For a subset of compute nodes, internodal communication among them and between these nodes and the storage systems serving the home directories and the scratch directories is provided by a QDR Infiniband network(40Gbps). For another subset of compute nodes, these communications are provided by an EDR Infiniband network.

The cluster is currently comprised of the following resources:

Regular nodes

• 106 compute nodes with AMD Opteron processors (48 cores and 128GB of RAM per node)
• 22 compute nodes with AMD EPYC (Rome) processors (64 cores and 128GB of RAM per node)
• 16 compute nodes with AMD EPYC processors (32 cores and 128GB of RAM per node)
• 42 compute nodes with Intel Xeon Skylake processors (32 cores and 192GB of RAM per node)
• 32 compute nodes with Intel Xeon Broadwell processors (28 cores and 64GB of RAM per node)
• 4 compute nodes with AMD Opteron processors (48 cores and 256GB of RAM per node)

High memory nodes (1TB/node)

• 4 compute nodes with AMD EPYC processors (64 cores and 1TB of RAM per node)
• 4 compute nodes with Intel Xeon Broadwell processors (28 cores and 1TB of RAM per node)
• 1 compute node with AMD Opteron processors (48 cores and 1TB of RAM per node)

High memory nodes (512GB/node)

• 16 compute nodes with AMD EPYC processors (32 cores and 512GB of RAM per node)
• 6 compute nodes with AMD Opteron processors (48 cores and 512GB of RAM per node)

GPU nodes

• 4 compute nodes with Intel Xeon Skylake processors (32 cores and 187GB of RAM) and 1 NVIDIA P100 GPU card per node
• 2 compute nodes with Intel Xeon processors (16 cores and 128GB of RAM) and 8 NVIDIA K40m GPU cards per node
• 4 compute nodes with Intel Xeon processors (12 cores and 96GB of RAM) and 7 NVIDIA K20Xm GPU cards per node

Buy-in nodes

• Various configurations

The queueing system on Sapelo2 is Torque/Moab.

Monitoring Jobs on Sapelo2

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Teaching cluster

The teaching cluster is a Linux cluster that runs a 64-bit Linux, with Centos 7.5. The physical login node has two 6-core Intel Xeon E5-2620 processors and 128GB of RAM and it runs Red Hat EL 7.5. An Ethernet network (1Gbps) provides internodal communication among compute nodes, and between the compute nodes and the storage systems serving the home directories and the work directories.

The cluster is currently comprised of the following resources:

• 37 compute nodes with Intel Xeon X5650 2.67GHz processors (12 cores and 48GB of RAM per node)
• 2 compute nodes with Intel Xeon E5504 2.00GHz processors (8 cores and 48GB of RAM per node)
• 3 compute nodes with Intel Xeon E5504 2.00GHz processors (8 cores and 192GB of RAM per node)
• 2 compute nodes with AMD Opteron 6174 processors (48 cores and 128GB of RAM per node)
• 3 compute nodes with AMD Opteron 6128 HE 2.00GHz processors (32 cores and 64GB of RAM per node)
• 6 NVIDIA Tesla (Fermi) M2070 GPU cards (8 x 448 = 3584 GPU cores). These cards are installed on one host that has dual 6-core Intel Xeon CPUs and 48GB of RAM

The queueing system on the teaching cluster is Slurm.

Software Installed on the teaching cluster

The list of installed application is available at Software page.