DACHS/Hardware and Architecture

Architecture of DACHS

The Datenanalyse Cluster der Hochschulen (DACHS) is a parallel computer with distributed memory connected over Infiniband and Ethernet. The compute nodes contain at least dual AMD processors, at least 384GB of local memory, 2 TB local NVMe-based disc storage and accelerators as shown in the table below. With BeeGFS a fast and scalable filesystem is provided via Infiniband to all login and compute nodes

The Operating System is Rocky-Linux 9.4 (which is based on RHEL). The setup is kept in-line (with regard to Software, Setup and general usage) is mostly equivalent to bwHPC and bwUniCluster in particular.

Components of DACHS

	Compute nodes "L40S"	Compute nodes "H100"	Compute nodes "AMD_APU"	Login
Number of nodes	45	1	1	2
Processors	AMD EPYC 9254	AMD EPYC 9454	AMD MI300A	AMD EPYC 9254
Number of sockets	2	2	4	2
Processor frequency (GHz)	2.9 Ghz	2.75 Ghz	2.1 Ghz	2.9 Ghz
Total number of cores	48	96	96	48
Main memory	384 GB	1536 GB	512 GB	384 GB
Local SSD	1,92 TB NVMe	1,92 TB NVMe	1,92 TB NVMe	1,92 TB NVMe
Accelerators	1x NVIDIA L40S	8x NVIDIA H100	4x AMD MI300A	-
Accelerator memory	48 GB	8x 80 GB	4x 128 GB	-
Interconnect	IB HDR100	IB HDR100	IB HDR100	IB HDR100

Table 1: Properties of the nodes