1topology.conf(5) Slurm Configuration File topology.conf(5)
2
6 topology.conf - Slurm configuration file for defining the network
7 topology
8
11 Topology.conf can only represent a hierarchical network. All nodes in
12 the network must be connected to at least one switch. The network must
13 be fully connected to use a RoutePlugin. Jobs can only span nodes con‐
14 nected by the same switch fabric, even if there are available idle
15 nodes.
16
19 topology.conf is an ASCII file which describes the cluster's network
20 topology for optimized job resource allocation. The file will always
21 be located in the same directory as the slurm.conf.
22 Parameter names are case insensitive. Any text following a "#" in the
24 configuration file is treated as a comment through the end of that
25 line. Changes to the configuration file take effect upon restart of
26 Slurm daemons, daemon receipt of the SIGHUP signal, or execution of the
27 command "scontrol reconfigure" unless otherwise noted.
28 The network topology configuration one line defining a switch name and
30 its children, either node names or switch names. Slurm's hostlist ex‐
31 pression parser is used, so the node and switch names need not be con‐
32 secutive (e.g. "Nodes=tux[0-3,12,18-20]" and "Switches=s[0-2,4-8,12]"
33 will parse fine). An optional link speed may also be specified.
34 The topology.conf file for an Infiniband switch can be automatically
36 generated using the slurmibtopology tool found here:
37 <https://ftp.fysik.dtu.dk/Slurm/slurmibtopology.sh>.
38 The overall configuration parameters available include:
40 SwitchName
43 The name of a switch. This name is internal to Slurm and arbi‐
44 trary. Each switch should have a unique name. This field must
45 be specified.
46 Switches
48 Child switches of the named switch. Either this option or the
49 Nodes option must be specified.
50 Nodes Child Nodes of the named leaf switch. Either this option or the
52 Switches option must be specified.
53 LinkSpeed
55 An optional value specifying the performance of this communica‐
56 tion link. The units used are arbitrary and this information is
57 currently not used. It may be used in the future to optimize
58 resource allocations.
59
61 ##################################################################
62 # Slurm's network topology configuration file for use with the
63 # topology/tree plugin
64 ##################################################################
65 SwitchName=s0 Nodes=dev[0-5]
66 SwitchName=s1 Nodes=dev[6-11]
67 SwitchName=s2 Nodes=dev[12-17]
68 SwitchName=s3 Switches=s[0-2]
69
72 Copyright (C) 2009 Lawrence Livermore National Security. Produced at
73 Lawrence Livermore National Laboratory (cf, DISCLAIMER).
74 Copyright (C) 2010-2022 SchedMD LLC.
75 This file is part of Slurm, a resource management program. For de‐
77 tails, see <https://slurm.schedmd.com/>.
78 Slurm is free software; you can redistribute it and/or modify it under
80 the terms of the GNU General Public License as published by the Free
81 Software Foundation; either version 2 of the License, or (at your op‐
82 tion) any later version.
83 Slurm is distributed in the hope that it will be useful, but WITHOUT
85 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
86 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
87 for more details.
88
91 slurm.conf(5)
92January 2022 Slurm Configuration File topology.conf(5)