Section: Sun Grid Engine Administrative Commands (8)Updated: $Date$Local indexUp
NAME
sge_execd - Sun Grid Engine job execution agent
SYNOPSIS
sge_execd
[
-help
]
DESCRIPTION
sge_execd
controls the Sun Grid Engine queues local to the machine on which
sge_execd
is running and executes/controls the jobs sent from
to be run on these queues.
OPTIONS
-help
Prints a listing of all options.
LOAD SENSORS
If a load sensor is configured for
sge_execd
via either the global host configuration or the
execution-host-specific cluster configuration (See
the executable path of the load sensor is invoked by
sge_execd
on a regular basis
and delivers one or multiple load figures for the execution host (e.g.
users currently logged in) or the complete cluster (e.g. free
disk space on a network wide scratch file system). The load
sensor may be a script or a binary executable. In either case
its handling of the STDIN and STDOUT streams and its control
flow must comply to the following rules:
The load sensor must be written as an infinite loop waiting at
a certain point for input from STDIN. If the string "quit"
is read from STDIN, the load sensor should exit. When an
end-of-line is read from STDIN, a load data retrieval cycle should
start. The load sensor then performs whatever
operation is necessary to compute the desired load figures.
At the end of the cycle the load sensor writes the result to
stdout. The format is as follows:
•
A load value report starts with a line containing only either the word "start"
or the word "begin".
•
Individual load values are separated by newlines.
•
Each load value report consists of three parts separated by
colons (":") and containing no blanks.
•
The first part of a load value information is either the name of
the host for which load is reported or the special name
"global".
•
The second part is the symbolic name of the load value as
defined in the host or global complex list (see
for details). If a load value is
reported for which no entry in the host or global complex
list exists, the reported load value is not used.
•
The third part is the measured load value.
•
A load value report ends with a line with only the word "end".
ENVIRONMENTAL VARIABLES
SGE_ROOT
Specifies the location of the Sun Grid Engine standard configuration
files.
SGE_CELL
If set, specifies the default Sun Grid Engine cell. To address a Sun Grid Engine
cell
sge_execd
uses (in the 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.
SGE_QMASTER_PORT
If set, specifies the tcp port on which
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
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.
RESTRICTIONS
sge_execd
usually is started from root on each machine in the Sun Grid Engine pool.
If started by a normal user, a 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
sgepasswd contains a list of user names and their
corresponding encrypted passwords. If available, the
password file will be used by sge_execd. To change the contents
of this file please use the sgepasswd command. It is not advised to change
that file manually.
<sge_root>/<cell>/common/configuration
Sun Grid Engine global configuration
<sge_root>/<cell>/common/local_conf/<host>
Sun Grid Engine host specific configuration
<sge_root>/<cell>/spool/<host>
Default execution host spool directory
<sge_root>/<cell>/common/act_qmaster
Sun Grid Engine master host file
SEE ALSO
COPYRIGHT
See
for a full statement of rights and permissions.