NAME
topology.conf - Slurm configuration file for defining the network
topology
DESCRIPTION
/etc/topology.conf is an ASCII file which describes the cluster’s
network topology for optimized job resource allocation. The file
location can be modified at system build time using the
DEFAULT_SLURM_CONF parameter. The file will always be located in the
same directory as the slurm.conf file.
Parameter names are case insensitive. Any text following a "#" in the
configuration file is treated as a comment through the end of that
line. The size of each line in the file is limited to 1024 characters.
Changes to the configuration file take effect upon restart of SLURM
daemons, daemon receipt of the SIGHUP signal, or execution of the
command "scontrol reconfigure" unless otherwise noted.
The network topology configuration one one line defining a switch name
and its children, either node names or switch names. SLURM’s hostlist
expression parser is used, so the node and switch names need not be
consecutive (e.g. "Nodes=tux[0-3,12,18-20]" and
"Swithces=s[0-2,4-8,12]" will parse fine). An optional link speed may
also be specified.
The overall configuration parameters available include:
SwitchName
The name of a switch. This name is internal to SLURM and
arbitrary. Each switch should have a unique name. This field
must be specified.
Switches
Child switches of the named switch. Either this option or the
Nodes option must be specified.
Nodes Child Nodes of the named leaf switch. Either this option or the
Switches option must be specified.
LinkSpeed
An optional value specifying the performance of this
communication link. The units used are arbitrary and this
information is currently not used. It may be used in the future
to optimize resource allocations.
EXAMPLE
##################################################################
# SLURM’s network topology configuration file for use with the
# topology/tree plugin
##################################################################
SwitchName=s0 Nodes=dev[0-5]
SwitchName=s1 Nodes=dev[6-11]
SwitchName=s2 Nodes=dev[12-17]
SwitchName=s3 Switches=s[0-2]
COPYING
Copyright (C) 2009 Lawrence Livermore National Security. Produced at
Lawrence Livermore National Laboratory (cf, DISCLAIMER).
CODE-OCEC-09-009. All rights reserved.
This file is part of SLURM, a resource management program. For
details, see <https://computing.llnl.gov/linux/slurm/>.
SLURM is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at your
option) any later version.
SLURM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
SEE ALSO
slurm.conf(5)