topology.conf(5) [debian man page]
topology.conf(5) Slurm configuration file topology.conf(5) NAME
topology.conf - Slurm configuration file for defining the network topology DESCRIPTION
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 or at execution time by setting the SLURM_CONF environment vari- able. 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 "Switches=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 cur- rently 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 <http://www.schedmd.com/slurmdocs/>. 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) topology.conf 2.0 March 2009 topology.conf(5)
Check Out this Related Man Page
SLURMD(8) Slurm components SLURMD(8) NAME
slurmd - The compute node daemon for SLURM. SYNOPSIS
slurmd [OPTIONS...] DESCRIPTION
slurmd is the compute node daemon of Slurm. It monitors all tasks running on the compute node , accepts work (tasks), launches tasks, and kills running tasks upon request. OPTIONS -c Clear system locks as needed. This may be required if slurmd terminated abnormally. -C Print actual hardware configuration and exit. The format of output is the same as used in slurm.conf to describe a node's configura- tion. -d <file> Specify the fully qualified pathname to the slurmstepd program to be used for shepherding user job steps. This can be useful for testing purposes. -D Run slurmd in the foreground. Error and debug messages will be copied to stderr. -f <file> Read configuration from the specified file. See NOTES below. -h Help; print a brief summary of command options. -L <file> Write log messages to the specified file. -M Lock slurmd pages into system memory using mlockall (2) to disable paging of the slurmd process. This may help in cases where nodes are marked DOWN during periods of heavy swap activity. If the mlockall (2) system call is not available, an error will be printed to the log and slurmd will continue as normal. -n <value> Set the daemon's nice value to the specified value, typically a negative number. Also note the PropagatePrioProcess configuration parameter. -N <hostname> Run the daemon with the given hostname. Used to emulated a larger system with more than one slurmd daemon per node. Requires that SLURM be built using the --enable-multiple-slurmd configure option. -v Verbose operation. Multiple -v's increase verbosity. -V Print version information and exit. ENVIRONMENT VARIABLES
The following environment variables can be used to override settings compiled into slurmd. SLURM_CONF The location of the SLURM configuration file. This is overridden by explicitly naming a configuration file on the com- mand line. NOTES
It may be useful to experiment with different slurmd specific configuration parameters using a distinct configuration file (e.g. timeouts). However, this special configuration file will not be used by the slurmctld daemon or the Slurm programs, unless you specifically tell each of them to use it. If you desire changing communication ports, the location of the temporary file system, or other parameters used by other Slurm components, change the common configuration file, slurm.conf. COPYING
Copyright (C) 2002-2007 The Regents of the University of California. Copyright (C) 2008-2010 Lawrence Livermore National Security. Pro- duced 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 <http://www.schedmd.com/slurmdocs/>. 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. FILES
/etc/slurm.conf SEE ALSO
slurm.conf(5), slurmctld(8) slurmd 2.2 March 2010 SLURMD(8)