Provided by: slurmd_24.05.4-1_amd64 
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
--authinfo
Used with configless to set an alternate AuthInfo parameter to be used to establish
communication with slurmctld before the configuration file has been retrieved.
(E.g., to specify an alternate MUNGE socket location.)
-b Report node rebooted when daemon restarted. Used for testing purposes.
-c Clear system locks as needed. This may be required if slurmd terminated abnormally.
-C Print the actual hardware configuration (not the configuration from the slurm.conf
file) and exit. The format of output is the same as used in slurm.conf to describe
a node's configuration plus its uptime.
--conf <node parameters>
Used in conjunction with the -Z option. Used to override or define additional
parameters of a dynamic node using the same syntax and parameters used to define
nodes in the slurm.conf. Specifying any of CPUs, Boards, SocketsPerBoard,
CoresPerSocket or ThreadsPerCore will override the defaults defined by the -C
option. NodeName and Port are not supported.
For example if slurmd -C reports
NodeName=node1 CPUs=16 Boards=1 SocketsPerBoard=1 CoresPerSocket=8 ThreadsPerCore=2 RealMemory=31848
the following --conf specifications will generate the corresponding node
definitions:
--conf "Gres=gpu:2"
NodeName=node1 CPUs=16 Boards=1 SocketsPerBoard=1 CoresPerSocket=8 ThreadsPerCore=2 RealMemory=31848 Gres=gpu:2
--conf "RealMemory=30000"
NodeName=node1 CPUs=16 Boards=1 SocketsPerBoard=1 CoresPerSocket=8 ThreadsPerCore=2 RealMemory=30000
--conf "CPUs=16"
NodeName=node1 CPUs=16 RealMemory=331848
--conf "CPUs=16 RealMemory=30000 Gres=gpu:2"
NodeName=node1 CPUs=16 RealMemory=30000 Gres=gpu:2"
--conf-server <host>[:<port>]
Comma-separated list of controllers, the first being the primary slurmctld. A port
can (optionally) be specified for each controller. These hosts are where the slurmd
will fetch the configuration from when running in "configless" mode.
-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.
--extra <arbitrary string>
Set "extra" data on node startup. If this is a json string and
SchedulerParameters=extra_constraints is set in slurm.conf, then jobs may use the
--extra option to filter based on this "extra" data.
-f <file>
Read configuration from the specified file. See NOTES below.
-F[feature]
Start this node as a Dynamic Future node. It will try to match a node definition
with a state of FUTURE, optionally using the specified feature to match the node
definition.
-G Print Generic RESource (GRES) configuration (based upon slurm.conf GRES merged with
gres.conf contents for this node) and exit.
-h Help; print a brief summary of command options.
--instance-id <cloud instance id>
Set cloud instance ID on node startup.
--instance-type <cloud instance type>
Set cloud instance type on node startup.
-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.
It is suggested to set LaunchParameters=slurmstepd_memlock in slurm.conf(5) when
setting -M.
-n <value>
Set the daemon's nice value to the specified value, typically a negative number.
Also note the PropagatePrioProcess configuration parameter.
-N <nodename>
Run the daemon with the given nodename. Used to emulate a larger system with more
than one slurmd daemon per node. Requires that Slurm be built using the
--enable-multiple-slurmd configure option.
-s Change working directory of slurmd to SlurmdLogFile path if possible, or to
SlurmdSpoolDir otherwise. If both of them fail it will fallback to /var/tmp.
--systemd
Use when starting the daemon with systemd. This will allow slurmd to notify systemd
of the new PID when using 'scontrol reconfigure'.
-v Verbose operation. Multiple -v's increase verbosity.
-V, --version
Print version information and exit.
-Z Start this node as a Dynamic Normal node. If no --conf is specified, then the
slurmd will register with the same hardware configuration as defined by the -C
option.
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 command line.
SLURM_DEBUG_FLAGS Specify debug flags for slurmd to use. See DebugFlags in the
slurm.conf(5) man page for a full list of flags. The environment
variable takes precedence over the setting in the slurm.conf.
SIGNALS
SIGTERM SIGINT
slurmd will shutdown cleanly, waiting for in-progress rollups to finish.
SIGHUP Reloads the slurm configuration files, similar to 'scontrol reconfigure'.
SIGUSR2
Reread the log level from the configs, and then reopen the log file. This should be
used when setting up logrotate(8).
SIGPIPE
This signal is explicitly ignored.
CORE FILE LOCATION
If slurmd is started with the -D option then the core file will be written to the current
working directory. Otherwise if SlurmdLogFile is a fully qualified path name (starting
with a slash), the core file will be written to the same directory as the log file.
Otherwise the core file will be written to the SlurmdSpoolDir directory, or "/var/tmp/" as
a last resort. If none of the above directories can be written, no core file will be
produced.
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.
If you are using configless mode with a login node that runs a lot of client commands, you
may consider running slurmd on that machine so it can manage a cached version of the
configuration files. Otherwise, each client command will use the DNS record to contact the
controller and get the configuration information, which could place additional load on the
controller.
COPYING
Copyright (C) 2002-2007 The Regents of the University of California. Copyright (C)
2008-2010 Lawrence Livermore National Security. Copyright (C) 2010-2022 SchedMD LLC.
Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
This file is part of Slurm, a resource management program. For details, see
<https://slurm.schedmd.com/>.
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)