Attention

SCARF is migrating to Rocky 9, please see Rocky 9 Migration for details on the Rocky 9 cluster

SCARF Configuration

The hardware for SCARF is purchased on a yearly basis, with each new addition added to the same set of computational job queues so as to give the users a seamless experience. This has the advantage of meaning that no large outlay of money is needed in a single year, as well as enabling us to get the best quality hardware for our money on each occasion.

The original cluster was a 256 core, 128 node cluster purchased in 2004, which has since been retired from service and completely replaced with the incremental expansions listed below.

Current Hardware Configuration

The SCARF computational cluster is comprised of a number of host groups which are listed in the table below (Scroll to see all of table). Host groups marked with the Scratch volume Pansas have access to the /scratch area. Those groups marked with GPFS have access to the /scratch21 area

Host Group	Slurm Feature	CPU Type/Freq	Nodes	Cores /Node	Total Cores	Infiniband	Memory	Tot Mem	Disks	Scratch Volume
SCARF 24	scarf24	AMD Epyc 9654	66	384	25344	NDR-200	1.5 TB	99000GB	1x500G	Panasas
SCARF 23	scarf23	AMD Epyc 7502	132	32	4224	HDR	256 GB	33792GB	1x500G	GPFS
SCARF 22	scarf22	AMD Epyc 7502	32	32	1024	HDR	256 GB	8192GB	1x500G	GPFS
SCARF 21	scarf21	AMD Epyc 7502	168	32	5376	HDR	256 GB	43008GB	1x500G	GPFS
SCARF 20	scarf20	AMD Epyc 7502	78	32	2560	EDR	256 GB	21504GB	1x500G	Panasas
SCARF Compute Total			476		38528			205496GB

SCARF also has a number of nodes equipped with GPUs. All GPU host groups have access to the GPFS provided /scratch21 area

Host Group	Slurm Feature	CPU Type/Freq	GPU Type/Count	Nodes	Cores /Node	Total Cores	Infiniband	Memory	Tot Mem	Disks
SCARF 23	scarf23	AMD 7302	NVidia A100x4	6	32	192	HDR	256 GB	1536GB	1x480G
SCARF 21	scarf21	AMD 7302	NVidia A100x4	6	32	192	HDR	256 GB	1536GB	1x480G