SGE_CONF(5)

NAME
sge_conf - Grid Engine configuration files

DESCRIPTION
sge_conf defines the global and local Grid Engine configurations and can be shown/modified by using the -sconf/-mconf options. Only root or the cluster administrator may modify sge_conf.

At its initial start-up, checks to see if a valid Grid Engine configuration is available at a well known location in the Grid Engine internal directory hierarchy. If so, it loads that configuration information and proceeds. If not, writes a generic configuration containing default values to that same location. The Grid Engine execution daemons upon start-up retrieve their configuration from

The actual configuration for both and is a superposition of a so called global configuration and a local configuration being pertinent for the host on which a master or execution daemon resides. If a local configuration is available, its entries overwrite the corresponding entries of the global configuration. Note: The local configuration does not have to contain all valid configuration entries, but only those which need to be modified against the global entries.

FORMAT
The paragraphs that follow provide brief descriptions of the individual parameters that compose the global and local configurations for a Grid Engine cluster:

execd_spool_dir
The execution daemon spool directory path. Again, a feasible spool directory requires read/write access permission for root. The entry in the global configuration for this parameter can be overwritten by execution host local configurations, i.e. each may have a private spool directory with a different path, in which case it needs to provide read/write permission for the root account of the corresponding execution host only.

Under execd_spool_dir a directory named corresponding to the unqualified hostname of the execution host is opened and contains all information spooled to disk. Thus, it is possible for the execd_spool_dirs of all execution hosts to physically reference the same directory path (the root access restrictions mentioned above need to be met, however).

Being a parameter set at installation time changing the global execd_spool_dir in a running system is not supported. If the change should still be proceeded it is required to restart all effected execution daemons. Please make sure running jobs have finished before doing so. If you do so running jobs will be lost.

The default location for the execution daemon spool directory is <sge_root>/<cell>/spool.

The global configuration entry for this value may be overwritten by the execution host local configuration.

mailer
mailer is the absolute pathname to the electronic mail delivery agent on your system. It must accept the following syntax:

    mailer -s <subject-of-mail-message> <recipient>

Each may use a private mail agent. Changing mailer will take immediate effect.

The default for mailer depends on the operating system of the host on which the Grid Engine master installation was run. Common values are /bin/mail or /usr/bin/Mail.

The global configuration entry for this value may be overwritten by the execution host local configuration.

xterm
xterm is the absolute pathname to the X Window System terminal emulator,

Each may use a private mail agent. Changing xterm will take immediate effect.

The default for xterm is /usr/bin/X11/xterm.

The global configuration entry for this value may be overwritten by the execution host local configuration.

load_sensor
A comma separated list of executable shell script paths or programs to be started by and to be used in order to retrieve site configurable load information (e.g. free space on a certain disk partition).

Each may use a set of private load_sensor programs or scripts. Changing load_sensor will take effect after two load report intervals (see load_report_time). A load sensor will be restarted automatically if the file modification time of the load sensor executable changes.

The global configuration entry for this value may be overwritten by the execution host local configuration.

In addition to the load sensors configured via load_sensor, searches for an executable file named qloadsensor in the execution host's Grid Engine binary directory path. If such a file is found, it is treated like the configurable load sensors defined in load_sensor. This facility is intended for pre-installing a default load sensor.

prolog
The executable path of a shell script that is started before execution of Grid Engine jobs with the same environment setting as that for the Grid Engine jobs to be started afterwards. An optional prefix "user@" specifies the user under which this procedure is to be started. The procedures standard output and the error output stream are written to the same file used also for the standard output and error output of each job. This procedure is intended as a means for the Grid Engine administrator to automate the execution of general site specific tasks like the preparation of temporary file systems with the need for the same context information as the job. Each may use a private prologue script. Correspondingly, the execution host local configurations is can be overwritten by the queue configuration (see ). Changing prolog will take immediate effect.

The default for prolog is the special value NONE, which prevents from execution of a prologue script.

The following special variables being expanded at runtime can be used (besides any other strings which have to be interpreted by the procedure) to constitute a command line:

$host
    The name of the host on which the prolog or epilog procedures are started.

$job_owner
    The user name of the job owner.

$job_id
    Grid Engine's unique job identification number.

$job_name
    The name of the job.

$processors
    The processors string as contained in the queue configuration (see of the master queue (the queue in which the prolog and epilog procedures are started).

$queue
    The cluster queue name of the master queue instance, i.e. the cluster queue in which the prolog and epilog procedures are started.

$stdin_path
    The pathname of the stdin file. This is always /dev/null for prolog, pe_start, pe_stop and epilog. In the job script it is the pathname of the stdin file for the job. When delegated file staging is enabled, this path is set to $fs_stdin_tmp_path. When delegated file staging is not enabled, it is the stdin pathname given via DRMAA or qsub.

$stdout_path

$stderr_path
    The pathname of the stdout/stderr file. This always points to the output/error file. When delegated file staging is enabled, this path is set to $fs_stdout_tmp_path/$fs_stderr_tmp_path. When delegated file staging is not enabled, it is the stdout/stderr pathname given via DRMAA or qsub.

$merge_stderr
    If merging of stderr and stdout is requested, this flag is "1", otherwise it is "0". If this flag is 1, stdout and stderr are merged in one file, the stdout file. Merging of stderr and stdout can be requested via the DRMAA job template attribute 'drmaa_join_files' (see ) or the qsub parameter '-j y' (see ).

$fs_stdin_host
    When delegated file staging is requested for the stdin file, this is the name of the host where the stdin file has to be copied from before the job is started.

$fs_stdout_host

$fs_stderr_host
    When delegated file staging is requested for the stdout/stderr file, this is the name of the host where the stdout/stderr file has to be copied to after the job has run.

$fs_stdin_path
    When delegated file staging is requested for the stdin file, this is the pathname of the stdin file on the host $fs_stdin_host.

$fs_stdout_path

$fs_stderr_path
    When delegated file staging is requested for the stdout/stderr file, this is the pathname of the stdout/stderr file on the host $fs_stdout_host/$fs_stderr_host.

$fs_stdin_tmp_path
    When delegated file staging is requested for the stdin file, this is the destination pathname of the stdin file on the execution host. The prolog script must copy the stdin file from $fs_stdin_host:$fs_stdin_path to localhost:$fs_stdin_tmp_path to establish delegated file staging of the stdin file.

$fs_stdout_tmp_path

$fs_stderr_tmp_path
    When delegated file staging is requested for the stdout/stderr file, this is the source pathname of the stdout/stderr file on the execution host. The epilog script must copy the stdout file from localhost:$fs_stdout_tmp_path to $fs_stdout_host:$fs_stdout_path (the stderr file from localhost:$fs_stderr_tmp_path to $fs_stderr_host:$fs_stderr_path) to establish delegated file staging of the stdout/stderr file.

$fs_stdin_file_staging

$fs_stdout_file_staging

$fs_stderr_file_staging
    When delegated file staging is requested for the stdin/stdout/stderr file, the flag is set to "1", otherwise it is set to "0" (see in delegated_file_staging how to enable delegated file staging).

    These three flags correspond to the DRMAA job template attribute 'drmaa_transfer_files' (see ).

The global configuration entry for this value may be overwritten by the execution host local configuration.

epilog
The executable path of a shell script that is started after execution of Grid Engine jobs with the same environment setting as that for the Grid Engine jobs that has just completed. An optional prefix "user@" specifies the user under which this procedure is to be started. The procedures standard output and the error output stream are written to the same file used also for the standard output and error output of each job. This procedure is intended as a means for the Grid Engine administrator to automate the execution of general site specific tasks like the cleaning up of temporary file systems with the need for the same context information as the job. Each may use a private epilogue script. Correspondingly, the execution host local configurations is can be overwritten by the queue configuration (see ). Changing epilog will take immediate effect.

The default for epilog is the special value NONE, which prevents from execution of a epilogue script. The same special variables as for prolog can be used to constitute a command line.

The global configuration entry for this value may be overwritten by the execution host local configuration.

shell_start_mode
This parameter defines the mechanisms which are used to actually invoke the job scripts on the execution hosts. The following values are recognized:

unix_behavior
    If a user starts a job shell script under UNIX interactively by invoking it just with the script name the operating system's executable loader uses the information provided in a comment such as `#!/bin/csh' in the first line of the script to detect which command interpreter to start to interpret the script. This mechanism is used by Grid Engine when starting jobs if unix_behavior is defined as shell_start_mode.

posix_compliant
    POSIX does not consider first script line comments such a `#!/bin/csh' as being significant. The POSIX standard for batch queuing systems (P1003.2d) therefore requires a compliant queuing system to ignore such lines but to use user specified or configured default command interpreters instead. Thus, if shell_start_mode is set to posix_compliant Grid Engine will either use the command interpreter indicated by the -S option of the command or the shell parameter of the queue to be used (see for details).

script_from_stdin
    Setting the shell_start_mode parameter either to posix_compliant or unix_behavior requires you to set the umask in use for such that every user has read access to the active_jobs directory in the spool directory of the corresponding execution daemon. In case you have prolog and epilog scripts configured, they also need to be readable by any user who may execute jobs.
    If this violates your site's security policies you may want to set shell_start_mode to script_from_stdin. This will force Grid Engine to open the job script as well as the epilogue and prologue scripts for reading into STDIN as root (if was started as root) before changing to the job owner's user account. The script is then fed into the STDIN stream of the command interpreter indicated by the -S option of the command or the shell parameter of the queue to be used (see for details).
    Thus setting shell_start_mode to script_from_stdin also implies posix_compliant behavior. Note, however, that feeding scripts into the STDIN stream of a command interpreter may cause trouble if commands like are invoked inside a job script as they also process the STDIN stream of the command interpreter. These problems can usually be resolved by redirecting the STDIN channel of those commands to come from /dev/null (e.g. rsh host date < /dev/null). Note also, that any command-line options associated with the job are passed to the executing shell. The shell will only forward them to the job if they are not recognized as valid shell options.

Changes to shell_start_mode will take immediate effect. The default for shell_start_mode is posix_compliant.

This value is a global configuration parameter only. It cannot be overwritten by the execution host local configuration.

login_shells
UNIX command interpreters like the Bourne-Shell (see or the C-Shell (see can be used by Grid Engine to start job scripts. The command interpreters can either be started as login-shells (i.e. all system and user default resource files like .login or .profile will be executed when the command interpreter is started and the environment for the job will be set up as if the user has just logged in) or just for command execution (i.e. only shell specific resource files like .cshrc will be executed and a minimal default environment is set up by Grid Engine - see The parameter login_shells contains a comma separated list of the executable names of the command interpreters to be started as login-shells. Shells in this list are only started as login shells if the parameter shell_start_mode (see above) is set to posix_compliant.

Changes to login_shells will take immediate effect. The default for login_shells is sh,csh,tcsh,ksh.

This value is a global configuration parameter only. It cannot be overwritten by the execution host local configuration.

min_uid
min_uid places a lower bound on user IDs that may use the cluster. Users whose user ID (as returned by is less than min_uid will not be allowed to run jobs on the cluster.

Changes to min_uid will take immediate effect. The default for min_uid is 0.

This value is a global configuration parameter only. It cannot be overwritten by the execution host local configuration.

min_gid
This parameter sets the lower bound on group IDs that may use the cluster. Users whose default group ID (as returned by is less than min_gid will not be allowed to run jobs on the cluster.

Changes to min_gid will take immediate effect. The default for min_gid is 0.

This value is a global configuration parameter only. It cannot be overwritten by the execution host local configuration.

user_lists
The user_lists parameter contains a comma separated list of so called user access lists as described in Each user contained in at least one of the enlisted access lists has access to the cluster. If the user_lists parameter is set to NONE (the default) any user has access being not explicitly excluded via the xuser_lists parameter described below. If a user is contained both in an access list enlisted in xuser_lists and user_lists the user is denied access to the cluster.

Changes to user_lists will take immediate effect

This value is a global configuration parameter only. It cannot be overwritten by the execution host local configuration.

xuser_lists
The xuser_lists parameter contains a comma separated list of so called user access lists as described in Each user contained in at least one of the enlisted access lists is denied access to the cluster. If the xuser_lists parameter is set to NONE (the default) any user has access. If a user is contained both in an access list enlisted in xuser_lists and user_lists (see above) the user is denied access to the cluster.

Changes to xuser_lists will take immediate effect

This value is a global configuration parameter only. It cannot be overwritten by the execution host local configuration.

administrator_mail
administrator_mail specifies a comma separated list of the electronic mail address(es) of the cluster administrator(s) to whom internally-generated problem reports are sent. The mail address format depends on your electronic mail system and how it is configured; consult your system's configuration guide for more information.

Changing administrator_mail takes immediate effect. The default for administrator_mail is an empty mail list.

This value is a global configuration parameter only. It cannot be overwritten by the execution host local configuration.

projects

The projects list contains all projects which are granted access to Grid Engine. User belonging to none of these projects cannot use Grid Engine. If users belong to projects in the projects list and the xprojects list (see below), they also cannot use the system.

Changing projects takes immediate effect. The default for projects is none.

This value is a global configuration parameter only. It cannot be overwritten by the execution host local configuration.

xprojects
The xprojects list contains all projects which are granted access to Grid Engine. User belonging to one of these projects cannot use Grid Engine. If users belong to projects in the projects list (see above) and the xprojects list, they also cannot use the system.

Changing xprojects takes immediate effect. The default for xprojects is none.

This value is a global configuration parameter only. It cannot be overwritten by the execution host local configuration.

load_report_time
System load is reported periodically by the execution daemons to The parameter load_report_time defines the time interval between load reports.

Each may use a different load report time. Changing load_report_time will take immediate effect.

Note: Be careful when modifying load_report_time. Reporting load too frequently might block especially if the number of execution hosts is large. Moreover, since the system load typically increases and decreases smoothly, frequent load reports hardly offer any benefit.

The default for load_report_time is 40 seconds.

The global configuration entry for this value may be overwritten by the execution host local configuration.

reschedule_unknown
Determines whether jobs on hosts in unknown state are rescheduled and thus sent to other hosts. Hosts are registered as unknown if cannot establish contact to the on those hosts (see max_unheard ). Likely reasons are a breakdown of the host or a breakdown of the network connection in between, but also may not be executing on such hosts.

In any case, Grid Engine can reschedule jobs running on such hosts to another system. reschedule_unknown controls the time which Grid Engine will wait before jobs are rescheduled after a host became unknown. The time format specification is hh:mm:ss. If the special value 00:00:00 is set, then jobs will not be rescheduled from this host.

Rescheduling is only initiated for jobs which have activated the rerun flag (see the -r y option of and the rerun option of Parallel jobs are only rescheduled if the host on which their master task executes is in unknown state. Checkpointing jobs will only be rescheduled when the when option of the corresponding checkpointing environment contains an appropriate flag. (see Interactive jobs (see are not rescheduled.

The default for reschedule_unknown id 00:00:00

The global configuration entry for this value may be over written by the execution host local configuration.

max_unheard
If could not contact or was not contacted by the execution daemon of a host for max_unheard seconds, all queues residing on that particular host are set to status unknown. at least, should be contacted by the execution daemons in order to get the load reports. Thus, max_unheard should by greater than the load_report_time (see above).

Changing max_unheard takes immediate effect. The default for max_unheard is 2 minutes 30 seconds.

This value is a global configuration parameter only. It cannot be overwritten by the execution host local configuration.

loglevel
This parameter specifies the level of detail that Grid Engine components such as or use to produce informative, warning or error messages which are logged to the messages files in the master and execution daemon spool directories (see the description of the execd_spool_dir parameter above). The following message levels are available:

log_err
    All error events being recognized are logged.

log_warning
    All error events being recognized and all detected signs of potentially erroneous behavior are logged.

log_info
    All error events being recognized, all detected signs of potentially erroneous behavior and a variety of informative messages are logged.

Changing loglevel will take immediate effect.

The default for loglevel is log_info.

This value is a global configuration parameter only. It cannot be overwritten by the execution host local configuration.

max_aj_instances
This parameter defines the maximum amount of array task to be scheduled to run simultaneously per array job. An instance of an array task will be created within the master daemeon when it gets a start order from the scheduler. The instance will be destroyed when the array task finishes. Thus the parameter provides control mainly over the memory consumption of array jobs in the master and scheduler daemon. It is most useful for very large clusters and very large array jobs. The default for this parameter is 2000. The value 0 will deactivate this limit and will allow the scheduler to start as many array job tasks as suitable resources are available in the cluster.

Changing max_aj_instances will take immediate effect.

This value is a global configuration parameter only. It cannot be overwritten by the execution host local configuration.

max_aj_tasks
This parameter defines the maximum number of array job tasks within an array job. will reject all array job submissions which request more than max_aj_tasks array job tasks. The default for this parameter is 75000. The value 0 will deactivate this limit.

Changing max_aj_tasks will take immediate effect.

This value is a global configuration parameter only. It cannot be overwritten by the execution host local configuration.

max_u_jobs
The number of active (not finished) jobs which each Grid Engine user can have in the system simultaneously is controlled by this parameter. A value greater than 0 defines the limit. The default value 0 means "unlimited". If the max_u_jobs limit is exceeded by a job submission then the submission command exits with exit status 25 and an appropriate error message.

Changing max_u_jobs will take immediate effect.

This value is a global configuration parameter only. It cannot be overwritten by the execution host local configuration.

max_jobs
The number of active (not finished) jobs simultaneously allowed in Grid Engine is controlled by this parameter. A value greater than 0 defines the limit. The default value 0 means "unlimited". If the max_jobs limit is exceeded by a job submission then the submission command exits with exit status 25 and an appropriate error message.

Changing max_jobs will take immediate effect.

This value is a global configuration parameter only. It cannot be overwritten by the execution host local configuration.

enforce_project
If set to true, users are required to request a project whenever submitting a job. See the -P option to for details.

Changing enforce_project will take immediate effect. The default for enforce_project is false.

This value is a global configuration parameter only. It cannot be overwritten by the execution host local configuration.

enforce_user
If set to true, a must exist to allow for job submission. Jobs are rejected if no corresponding user exists.

If set to auto, a object for the submitting user will automatically be created during job submission, if one does not already exist. The auto_user_oticket, auto_user_fshare, auto_user_default_project, and auto_user_delete_time configuration parameters will be used as default attributes of the new object.

Changing enforce_user will take immediate effect. The default for enforce_user is false.

This value is a global configuration parameter only. It cannot be overwritten by the execution host local configuration.

auto_user_oticket
The number of override tickets to assign to automatically created objects. User objects are created automatically if the enforce_user attribute is set to auto.

Changing auto_user_oticket will affect any newly created user objects, but will not change user objects created in the past.

This value is a global configuration parameter only. It cannot be overwritten by the execution host local configuration.

auto_user_fshare
The number of functional shares to assign to automatically created objects. User objects are created automatically if the enforce_user attribute is set to auto.

Changing auto_user_fshare will affect any newly created user objects, but will not change user objects created in the past.

This value is a global configuration parameter only. It cannot be overwritten by the execution host local configuration.

auto_user_default_project
The default project to assign to automatically created objects. User objects are created automatically if the enforce_user attribute is set to auto.

Changing auto_user_default_project will affect any newly created user objects, but will not change user objects created in the past.

This value is a global configuration parameter only. It cannot be overwritten by the execution host local configuration.

auto_user_delete_time
The number of seconds of inactivity after which automatically created objects will be deleted. User objects are created automatically if the enforce_user attribute is set to auto. If the user has no active or pending jobs for the specified amount of time, the object will automatically be deleted. A value of 0 can be used to indicate that the automatically created user object is permanent and should not be automatically deleted.

Changing auto_user_delete_time will affect the deletion time for all users with active jobs.

This value is a global configuration parameter only. It cannot be overwritten by the execution host local configuration.

set_token_cmd
This parameter is only present if your Grid Engine system is licensed to support AFS.

Set_token_cmd points to a command which sets and extends AFS tokens for Grid Engine jobs. In the standard Grid Engine AFS distribution, it is supplied as a script which expects two command line parameters. It reads the token from STDIN, extends the token's expiration time and sets the token:

    <set_token_cmd> <user> <token_extend_after_seconds>

As a shell script this command will call the programs:

    - SetToken
    - forge

which are provided by your distributor as source code. The script looks as follows:

    --------------------------------
    #!/bin/sh
    # set_token_cmd
    forge -u $1 -t $2 | SetToken
    --------------------------------

Since it is necessary for forge to read the secret AFS server key, a site might wish to replace the set_token_cmd script by a command, which connects to a self written daemon at the AFS server. The token must be forged at the AFS server and returned to the local machine, where SetToken is executed.

Changing set_token_cmd will take immediate effect. The default for set_token_cmd is none.

The global configuration entry for this value may be overwritten by the execution host local configuration.

pag_cmd
This parameter is only present if your Grid Engine system is licensed to support AFS.

The path to your pagsh is specified via this parameter. The process and the job run in a pagsh. Please ask your AFS administrator for details.

Changing pag_cmd will take immediate effect. The default for pag_cmd is none.

The global configuration entry for this value may be overwritten by the execution host local configuration.

token_extend_time
This parameter is only present if your Grid Engine system is licensed to support AFS.

the time period for which AFS tokens are periodically extended. Grid Engine will call the token extension 30 minutes before the tokens expire until jobs have finished and the corresponding tokens are no longer required.

Changing token_extend_time will take immediate effect. The default for token_extend_time is 24:0:0, i.e. 24 hours.

The global configuration entry for this value may be overwritten by the execution host local configuration.

gid_range
The gid_range is a comma separated list of range expressions of the form n-m (n as well as m being integer numbers greater than 99), where m is an abbreviation for m-m. These numbers are used in to identify processes belonging to the same job.

Each may use a separate set up group ids for this purpose. All number in the group id range have to be unused supplementary group ids on the system, where the is started.

Changing gid_range will take immediate effect. There is no default for gid_range. The administrator will have to assign a value for gid_range during installation of Grid Engine.

The global configuration entry for this value may be overwritten by the execution host local configuration.

qmaster_params
A list of additional parameters can be passed to the Grid Engine qmaster. The following values are recognized:

ENABLE_FORCED_QDEL
    If this parameter is set, non-administrative users can foce deletion of their own jobs via the -f option of Without this parameter, forced deletion of jobs is only allowed by the Grid Engine manager or operator.

    Note: Forced deletion for jobs is executed differently depending on whether users are Grid Engine administrators or not. In case of administrative users, the jobs are removed from the internal database of Grid Engine immediately. For regular users, the equivalent of a normal is executed first, and deletion is forced only if the normal cancellation was unsuccessful.

FORBID_RESCHEDULE
    If this parameter is set, re-queuing of jobs cannot be initiated by the job script which is under control of the user. Without this parameter jobs returning the value 99 are rescheduled. This can be used to cause the job to be restarted at a different machine, for instance if there are not enough resources on the current one.

FORBID_APPERROR
    If this parameter is set, the application cannot set itself to error state. Without this parameter jobs returning the value 100 are set to error state (and therefore can be manually rescheduled by clearing the error state). This can be used to set the job to error state when a starting condition of the application is not fulfilled before the application itself has been started, or when a clean up procedure (e.g. in the epilog) decides that it is necessary to run the job again, by returning 100 in the prolog, pe_start, job script, pe_stop or epilog script.

DISABLE_AUTO_RESCHEDULING
    If set to "true" or "1", the reschedule_unknown parameter is not taken into account.

MAX_DYN_EC
    Sets the max number of dynamic event clients (as used by qsub -sync y and by Grid Engine DRMAA API library sessions). The default is set to 99. The number of dynamic event clients should not be bigger than half of the number of file descriptors the system has. The number of file descriptors are shared among the connections to all exec hosts, all event clients, and file handles that the qmaster needs.

PROF_SIGNAL
    Profiling provides the user with the possibility to get system measurements. This can be useful for debugging or optimisation of the system. The profiling output will be done within the messages file. Enables the profiling for qmaster signal thread. (e.g. PROF_SIGNAL=true)

PROF_MESSAGE
    Enables the profiling for qmaster message thread. (e.g. PROF_MESSAGE=true)

PROF_DELIVER
    Enables the profiling for qmaster event deliver thread. (e.g. PROF_DELIVER=true)

PROF_TEVENT
    Enables the profiling for qmaster timed event thread. (e.g. PROF_TEVENT=true)

Please note, that the cpu utime and stime values contained in the profiling output are not per thread cpu times. These cpu usage statistics are per process statistics. So the printed profiling values for cpu mean "cpu time consumed by sge_qmaster (all threads) while the reported profiling level was active".

STREE_SPOOL_INTERVAL
    Sets the time interval for spooling the sharetree usage. The default is set to 00:04:00. The setting accepts colon-separated string or seconds. There is no setting to turn the sharetree spooling off. (e.g. STREE_SPOOL_INTERVAL=00:02:00)

Changing qmaster_params will take immediate effect. The default for qmaster_params is none.

This value is a global configuration parameter only. It cannot be overwritten by the execution host local configuration.

execd_params
This is foreseen for passing additional parameters to the Grid Engine execution daemon. The following values are recognized:

ACCT_RESERVED_USAGE
    If this parameter is set to true, for reserved usage is used for the accounting entries cpu, mem and io instead of the measured usage.

ENABLE_WINDOMACC
    If this parameter is set to true, on Windows hosts Windows Domain accounts (WinDomAcc) are used. These require the use of (see also If this parameter is set to false or is not set, local Windows accounts are used. On non-Windows hosts, this parameter is ignored.

KEEP_ACTIVE
    This value should only be set for debugging purposes. If set to true, the execution daemon will not remove the spool directory maintained by for a job.

PTF_MIN_PRIORITY, PTF_MAX_PRIORITY
    The maximum/minimum priority which Grid Engine will assign to a job. Typically this is a negative/positive value in the range of -20 (maximum) to 19 (minimum) for systems which allow setting of priorities with the system call. Other systems may provide different ranges.
    The default priority range (varies from system to system) is installed either by removing the parameters or by setting a value of -999.
    See the "messages" file of the execution daemon for the predefined default value on your hosts. The values are logged during the startup of the execution daemon.

PROF_EXECD
    Enables the profiling for the execution daemon. (e.g. PROF_EXECD=true)

NOTIFY_KILL
    The parameter allows you to change the notification signal for the signal SIGKILL (see -notify option of The parameter either accepts signal names (use the -l option of or the special value none. If set to none, no notification signal will be sent. If it is set to TERM, for instance, or another signal name then this signal will be sent as notification signal.

NOTIFY_SUSP
    With this parameter it is possible to modify the notification signal for the signal SIGSTOP (see -notify parameter of The parameter either accepts signal names (use the -l option of or the special value none. If set to none, no notification signal will be sent. If it is set to TSTP, for instance, or another signal name then this signal will be sent as notification signal.

SHARETREE_RESERVED_USAGE
    If this parameter is set to true, reserved usage is taken for the Grid Engine share tree consumption instead of measured usage.

Changing execd_params will take immediate effect. The default for execd_params is none.

The global configuration entry for this value may be overwritten by the execution host local configuration.

USE_QSUB_GID
    If this parameter is set to true, the primary group id being active when a job was submitted will be set to become the primary group id for job execution. If the parameter is not set, the primary group id as defined for the job owner in the execution host file is used.
    The feature is only available for jobs submitted via and Also, it only works for jobs (and thus also for and if rsh and rshd components are used which are provided with Grid Engine (i.e., the rsh_daemon and rsh_command parameters may not be changed from the default).

INHERIT_ENV
    This parameter indicates whether the shepherd should allow the environment inherited by the execution daemon from the shell that started it to be inherited by the job it's starting. When true, any environment variable that is set in the shell which starts the execution daemon at the time the execution daemon is started will be set in the environment of any jobs run by that execution daemon, unless the environment variable is explictly overridden, such as PATH or LOGNAME. If set to false, each job starts with only the environment variables that are explicitly passed on by the execution daemon, such as PATH and LOGNAME. The default value is true.

SET_LIB_PATH
    This parameter tells the execution daemon whether to add the Grid Engine shared library directory to the library path of executed jobs. If set to true, and INHERIT_ENV is also set to true, the Grid Engine shared library directory will be prepended to the library path which is inherited from the shell which started the execution daemon. If INHERIT_ENV is set to false, the library path will contain only the Grid Engine shared library directory. If set to false, and INHERIT_ENV is set to true, the library path exported to the job will be the one inherited from the shell which started the execution daemon. If INHERIT_ENV is also set to false, the library path will be empty. After the execution daemon has set the library path, it may be further altered by the shell in which the job is executed, or by the job script itself. The default value for SET_LIB_PATH is false.

reporting_params
Used to define the behaviour of reporting modules in the Grid Engine qmaster. Changes to the reporting_params takes immediate effect. The following values are recognized:

accounting
    If this parameter is set to true, the accounting file is written. The accounting file is prerequisite for using the qacct command.

reporting
    If this parameter is set to true, the reporting file is written. The reporting file contains data that can be used for monitoring and analysis, like job accounting, job log, host load and consumables, queue status and consumables and sharetree configuration and usage. Attention: Depending on the size and load of the cluster, the reporting file can become quite large. Only activate the reporting file if you have a process running that will consume the reporting file! See for further information about format and contents of the reporting file.

flush_time
    Contents of the accounting and the reporting file are buffered in the Grid Engine qmaster and flushed in a fixed interval. This interval can be configured with the flush_time parameter. It is specified as time value in the format HH:MM:SS. Sensible values range from some seconds to one minute. Setting it too low may slow down qmaster, setting it too high will make qmaster consume high amounts of memory for buffering data.

joblog
    If this parameter is set to true, the reporting file will contain job logging information. See for more information about job logging.

sharelog
    The Grid Engine qmaster can dump information about sharetree configuration and use to the reporting file. The parameter sharelog sets an interval in which sharetree information will be dumped. It is set in the format HH:MM:SS. A value of 00:00:00 configures qmaster not to dump sharetree information. Intervals of several minutes up to hours are sensible values for this parameter. See for further information about sharelog.

finished_jobs
Grid Engine stores a certain number of just finished jobs to provide post mortem status information. The finished_jobs parameter defines the number of finished jobs being stored. If this maximum number is reached, the eldest finished job will be discarded for every new job being added to the finished job list.

Changing finished_jobs will take immediate effect. The default for finished_jobs is 0.

This value is a global configuration parameter only. It cannot be overwritten by the execution host local configuration.

qlogin_daemon
This parameter specifies the executable that is to be started on the server side of a request. Usually this is the fully qualified pathname of the system's telnet daemon. If no value is given, a specialized Grid Engine component is used.

Changing qlogin_daemon will take immediate effect. The default for qlogin_daemon is none.

The global configuration entry for this value may be overwritten by the execution host local configuration.

qlogin_command
This is the command to be executed on the client side of a request. Usually this is the fully qualified pathname of the systems's telnet client program. If no value is given, a specialized Grid Engine component is used. It is automatically started with the target host and port number as parameters.

Changing qlogin_command will take immediate effect. The default for qlogin_command is none.

The global configuration entry for this value may be overwritten by the execution host local configuration.

rlogin_daemon
This parameter specifies the executable that is to be started on the server side of a request without a command argument to be executed remotely. Usually this is the fully qualified pathname of the system's rlogin daemon. If no value is given, a specialized Grid Engine component is used.

Changing rlogin_daemon will take immediate effect. The default for rlogin_daemon is none.

The global configuration entry for this value may be overwritten by the execution host local configuration.

rlogin_command
This is the command to be executed on the client side of a request without a command argument to be executed remotely. Usually this is the fully qualified pathname of the system's rlogin client program. If no value is given, a specialized Grid Engine component is used. The command is automatically started with the target host and port number as parameters like required for The Grid Engine rlogin client has been extended to accept and use the port number argument. You can only use clients, such as ssh, which also understand this syntax.

Changing rlogin_command will take immediate effect. The default for rlogin_command is none.

The global configuration entry for this value may be overwritten by the execution host local configuration.

rsh_daemon
This parameter specifies the executable that is to be started on the server side of a request with a command argument to be executed remotely. Usually this is the fully qualified pathname of the system's rsh daemon. If no value is given, a specialized Grid Engine component is used.

Changing rsh_daemon will take immediate effect. The default for rsh_daemon is none.

The global configuration entry for this value may be overwritten by the execution host local configuration.

rsh_command
This is the command to be executed on the client side of a request with a command argument to be executed remotely. Usually this is the fully qualified pathname of the system's rsh client program. If no value is given, a specialized Grid Engine component is used. The command is automatically started with the target host and port number as parameters like required for plus the command with its arguments to be executed remotely. The Grid Engine rsh client has been extended to accept and use the port number argument. You can only use clients, such as ssh, which also understand this syntax.

Changing rsh_command will take immediate effect. The default for rsh_command is none.

The global configuration entry for this value may be overwritten by the execution host local configuration.

delegated_file_staging
This flag must be set to "true" when the prolog and epilog are ready for delegated file staging, so that the DRMAA attribute 'drmaa_transfer_files' is supported. To establish delegated file staging, use the variables beginning with "$fs_..." in prolog and epilog to move the input, output and error files from one host to the other. When this flag is set to "false", no file staging is available for the DRMAA interface. File staging is currently implemented only via the DRMAA interface. When an error occurs while moving the input, output and error files, return error code 100 so that the error handling mechanism can handle the error correctly. (See also FORBID_APPERROR).

reprioritize
This flag enables or disables the reprioritization of jobs based on their ticket amount. The reprioritize_interval takes only affect if reprioritize is set to true (the default). In case one wants to turn off the reprioritization of jobs, one should set the reprioritize flag to false and the reprioritize_interval to 0.

SEE ALSO
Grid Engine Installation and Administration Guide.

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