NAME

       sge_qmaster - Grid Engine master control daemon

SYNOPSIS

       sge_qmaster [ -help ]

DESCRIPTION

       sge_qmaster controls the overall Grid Engine behavior in a cluster.

OPTIONS

       -help  Prints  a listing of all options.

ENVIRONMENT VARIABLES

       SGE_ROOT       Specifies the location of the Grid Engine standard configuration files.

       SGE_CELL       If  set,  specifies  the default Grid Engine cell. To address a Grid Engine
                      cell sge_qmaster uses (in order of precedence):

                             The name of the cell specified in the environment variable SGE_CELL,
                             if it is set.

                             The name of the default cell, i.e. default.

       SGE_DEBUG_LEVEL
                      If  set,  specifies  that debug information should be written to stderr. In
                      addition, the level of detail in which debug information  is  generated  is
                      defined by the defined value.

       SGE_DEBUG_LEVEL
                      If set, the qmaster will not daemonize.

       SGE_QMASTER_PORT
                      If  set,  specifies  the  tcp  port  on which sge_qmaster(8) is expected to
                      listen for communication requests.  Most installations will use a  services
                      map entry for the service "sge_qmaster" instead to define that port.

       SGE_EXECD_PORT If  set, specifies the tcp port on which sge_execd(8) is expected to listen
                      for communication requests.  Most installations will  use  a  services  map
                      entry for the service "sge_execd" instead to define that port.

       SGE_TEST_DELAY_SCHEDULING
                      If  set,  specifies  a delay in (integral seconds) before a scheduling run,
                      for test purposes.

       SGE_ND         If set, don't daemonize the program (for debugging).

       SGE_ENABLE_COREDUMP
                      If set, enable core dumps on Linux when the admin_user is not root.   Linux
                      normally  disables  core  dumps  when  the  daemon  has changed uid or gid.
                      Setting SGE_ENABLE_COREDUMP in sge_qmaster's environment  defeats  that  to
                      enable  core  dumps  for  debugging if they are otherwise allowed.  This is
                      typically not a big hazard with SGE, since most information is  exposed  in
                      the spool area anyhow.  Dumps will appear in the host spool directory.
                      On Solaris, coreadm(1) may be used to enable such dumps.

       SGE_QMASTER_PIDFILE
                      Path  name  of  file  to  which  to  write the daemon process id at startup
                      (default "qmaster.pid").  Note that this must be writable by the admin user
                      (see bootstrap(5)).

RESTRICTIONS

       sge_qmaster  is  usually  started from root on the master or shadow master machines of the
       cluster.  If started by a normal user, a master spool directory must be used to which  the
       user  has  read/write access. In this case only jobs being submitted by that same user are
       handled correctly by the system.

FILES

       <sge_root>/<cell>/common/configuration
                       Grid Engine global configuration
       <sge_root>/<cell>/common/local_conf/<host>
                       Grid Engine host specific configuration
       <sge_root>/<cell>/common/qmaster_args
                       sge_qmaster argument file
       <sge_root>/<cell>/spool
                       Default master spool directory

SEE ALSO

       sge_intro(1), sge_conf(5), sge_execd(8), sge_shadowd(8)

COPYRIGHT

       See sge_intro(1) for a full statement of rights and permissions.