NAME

       slurmctld - The central management daemon of Slurm.

SYNOPSIS

       slurmctld [OPTIONS...]

DESCRIPTION

       slurmctld  is  the central management daemon of Slurm. It monitors all other Slurm daemons
       and resources, accepts work (jobs), and allocates  resources  to  those  jobs.  Given  the
       critical  functionality  of  slurmctld,  there  may  be  a  backup  server to assume these
       functions in the event that the primary server fails.

       OPTIONS

       -B     Do not recover state of BlueGene blocks when running on a bluegene system.

       -c     Clear all previous slurmctld state from its last checkpoint.  Without this  option,
              previously  running  jobs  will be preserved along with node State of DOWN, DRAINED
              and DRAINING nodes and the associated Reason field for those nodes.

       -D     Debug mode. Execute slurmctld in the foreground with logging to stdout.

       -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.

       -n <value>
              Set the daemon's nice value to the specified value, typically a negative number.

       -r     Recover partial state from last checkpoint: jobs  and  node  DOWN/DRAIN  state  and
              reason  information  state.   No partition state is recovered.  This is the default
              action.

       -R     Recover full state from last checkpoint: jobs, node, and partition state.   Without
              this  option,  previously  running  jobs will be preserved along with node State of
              DOWN, DRAINED and DRAINING nodes and the associated Reason field for  those  nodes.
              No other node or partition state will be preserved.

       -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
       slurmctld.

       SLURM_CONF          The location of the SLURM configuration file. This  is  overridden  by
                           explicitly naming a configuration file on the command line.

CORE FILE LOCATION

       If  slurmctld  is  started  with  the  -D option then the core file will be written to the
       current working directory.  Otherwise if SlurmctldLogFile is a fully qualified  path  name
       (starting  with  a  slash), the core file will be written to the same directory as the log
       file, provided SlurmUser has write permission on the directory.  Otherwise the  core  file
       will  be written to the StateSaveLocation, or "/var/tmp/" as a last resort. If none of the
       above directories have write permission for SlurmUser, no core file will be produced.  The
       command  "scontrol  abort"  can  be used to abort the slurmctld daemon and generate a core
       file.

NOTES

       It may be useful to experiment with different slurmctld specific configuration  parameters
       using  a distinct configuration file (e.g. timeouts).  However, this special configuration
       file will not be used by the slurmd 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.  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://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.

SEE ALSO

       slurm.conf(5), slurmd(8)