MUSICA will presumably go into test operation at the beginning of 2025
MUSICA is currently under the acceptance test. The user testing phase will be later in the year.
In the past, Austria's most powerful supercomputers (the Vienna Scientific Clusters, VSCs) had been jointly operated by several universities - but so far in a central location, with online access for all participating institutions. Distributing the computer hardware itself across several locations and thus connecting high-performance computing with cloud computing is an innovation of the MUSICA project.
The part of MUSICA in Vienna will have 112 GPU and 72 CPU nodes. The parts in Innsbruck and Linz each over 80 GPU and 48 CPU nodes. The hardware is supplied by Lenovo, the storage of MEGWARE. This architecture will most benefit from the users who perform particularly data-intensive calculations, especially training models of artificial intelligence models to apply AI models to research questions from natural science and technology, and to analyze large amounts of data.
## Hardware
Musica is co-located in Innsbruck, Linz, and Vienna. The parts in Innsbruck and Linz each have 48 CPU and 80 GPU nodes, while the part in Vienna has 72 CPU and 112 GPU nodes. The hardware is supplied by Lenovo and the storage by MEGWARE.
The CPU nodes are comprised of 2x AMD Epyc 9654 with AMD Epyc 9654 (96 cores each) with 4x 32G DDR5, SharedIO NDR200 (20 of the Vienna nodes with 1x NDR400) and 1.92TB NVMe. The GPU nodes have 2x AMD Epyc 9654 with AMD Epyc 9654 (96 cores each) with 24x 32G DDR5, SXM5 H100-94G-700W, 4x NDR200 and 7.68TB NVMe. This architecture will mostly benefit the users that perform data-intensive calculations, especially training models of artificial intelligence models to research questions from natural science and technology, and to analyze large amounts of data.
To compute on VSC-5, see [VSC-5 partitions and QOS](../running_jobs/vsc5_queues.md)
VSC-5 is the latest addition to the Vienna Scientific Cluster infrastructure, supplied by Opens external link in new windowMegware. The system comprises 1,540 Opens external link in new windowAMD EPYC Milan processors and 98,560 cores (more than double of the VSC-4), and features a hardware partition of CPU and GPU nodes connected via Mellanox HDR infiniband (200 Gbit/s bandwidth).
VSC-5 is the latest addition to the Vienna Scientific Cluster infrastructure, supplied by Megware. The system comprises 1,540 EPYC Milan processors and 98,560 cores (more than double of the VSC-4), and features a hardware partition of CPU and GPU nodes connected via Mellanox HDR infiniband (200 Gbit/s bandwidth).
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##Cooling##
The VSC-5 mostly uses a direct hot water cooling system Opens external link in new windowColdCon. It operates at temperatures up to 50°C and allows energy-efficient free cooling throughout the year. Direct water cooling permits direct extraction of the heat produced in the compute nodes, in particular by the CPUs, the memory DIMMS, the SSDs and the Infiniband adapters. The waste heat can be reused to produce hot water or support the existing heating infrastructure.
The VSC-5 mostly uses a direct hot water cooling system ColdCon. It operates at temperatures up to 50°C and allows energy-efficient free cooling throughout the year. Direct water cooling permits direct extraction of the heat produced in the compute nodes, in particular by the CPUs, the memory DIMMS, the SSDs and the Infiniband adapters. The waste heat can be reused to produce hot water or support the existing heating infrastructure.
For the cooling of other components like power supplies, PDUs, infiniband and ethernet switches air-cooling via in-row coolers is used.
