---
title: Slurm cluster 'merlin7'
#tags:
keywords: configuration, partitions, node definition
last_updated: 24 Mai 2023
summary: "This document describes a summary of the Merlin6 configuration."
sidebar: merlin7_sidebar
permalink: /merlin7/slurm-configuration.html
---
{:style="display:block; margin-left:auto; margin-right:auto"}
{{site.data.alerts.warning}}The Merlin7 documentation is Work In Progress.
Please do not use or rely on this documentation until this becomes official.
This applies to any page under https://lsm-hpce.gitpages.psi.ch/merlin7/
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This documentation shows basic Slurm configuration and options needed to run jobs in the Merlin7 cluster.
### Infrastructure
#### Hardware
The current configuration for the _test_ phase is made up as:
* 9 nodes for the _PSI-Dev_ development system
* 8 nodes were meant for baremetal and k8s
* 1 login node
| Node | CPU | RAM | GRES | Notes |
| ---- | --- | --- | ---- | ----- |
| Compute node | _2x_ AMD EPYC 7713 (x86_64 Milan, 64 Cores, 3.2GHz) | 512GB DDR4 3200Mhz | _4x_ NVidia A100 (Ampere, 80GB) | |
| Login node | _2x_ AMD EPYC 7742 (x86_64 Rome, 64 Cores, 3.2GHz) | 512GB DRR4 3200Mhz | | |
#### Storage
* CephFS only for `/home` -- 1 TB
* ClusterStor L300 for `/scratch` -- 224 TB usable space
* CephRBD `/local` -- 100GB
#### Node IDs
Cray user various identifies to uniquely label each node, details on this can be found on the [Crayism page](cray-conventions.html).
The table below collates these together for the current configuration:
| Node ID | Cray XNAME | Notes |
| ---------- | ---------- | - |
| nid003204 | x1500c4s7b0n0 | login node, to which **psi-dev.cscs.ch** points |
| nid002808 | x1007c0s4b0n0 | |
| nid002809 | x1007c0s4b0n1 | |
| nid002812 | x1007c0s5b0n0 | |
| nid002813 | x1007c0s5b0n1 | |
| nid002824 | x1007c1s0b0n0 | |
| nid002825 | x1007c1s0b0n1 | |
| nid002828 | x1007c1s1b0n0 | |
| nid002829 | x1007c1s1b0n1 | |