Cluster structure

The Pleiadi infrastructures is distributed on the following sites:

Bologna

1. 1 frontend node for scheduling only

2. 48 compute nodes without GPUs

The below table summarizes the main features of the Bologna Pleiadi cluster:

Architecture	Cluster Linux x86_64
Nodes interconnection	Omni-Path HFI Silicon 100 Series, 100 Gbits interconnect
Service network	Ethernet 1 Gbits
CPU Model	Intel(R) Xeon(R) CPU E5-2697 v4 @ 2.30GHz
Number of nodes	48
Operating system	Debian 11
Workload manager	SLURM 20.11.7
Storage volume	600 TB, Lustre parallel filesystem

Catania

1. 1 frontend node

2. 72 compute nodes without GPUs (12 with a RAM memory of 256 GB and 60 with a RAM memory of 128 GB)

3. 6 compute nodes with 1 GPU each (4 of Tesla K40m type, of 12 GB of memory each, and 2 of Tesla V100 PCIe type, of 16 GB of memory each), with a RAM memory of 128 GB

4. 1 storage volume of 174 TB with BeeGFS parallel filesystem

The below table summarizes the main features of the Catania Pleiadi cluster:

Architecture	Cluster Linux x86_64
Nodes interconnection	Omni-Path HFI Silicon 100 Series, 100 Gbits interconnect
Service network	Ethernet 1 Gbits
CPU Model	Intel(R) Xeon(R) CPU E5-2697 v4 @ 2.30GHz
Number of nodes	78
Operating system	CentOS Linux release 7.9.2009
Workload manager	SLURM 21.08.5
Storage volume	174 TB, BeeGFS parallel filesystem

Trieste

1. 1 frontend node

2. 60 compute nodes without GPUs (all with 256 GB of RAM)

3. 6 compute nodes with 1 GPU each (Tesla K80 and 128 GB of RAM)

4. 1 storage volume of 480 TB with BeeGFS parallel filesystem

The below table summarizes the main features of the Trieste Pleiadi cluster:

Architecture	Cluster Linux x86_64
Nodes interconnection	Omni-Path HFI Silicon 100 Series, 100 Gbits interconnect
Service network	Ethernet 1 Gbits
CPU Model	Intel(R) Xeon(R) CPU E5-2697 v4 @ 2.30GHz
Number of nodes	66
Operating system	CentOS Linux release 7.9.2009
Workload manager	SLURM 19.05.0
Storage volume	480 TB, BeeGFS parallel filesystem