Control Data Corporation CYBER 170 Series Operator's Manual page 63

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NOTE
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For best system performance, the forms
code should be a value from AA to AF or
null.
n.ROLLOUT.
Removes job currently assigned to control point n
and places it in the rollout queue. The queue
priority for the job is set to
1.
This is a special
queue priority value which indicates that the job
will not be scheduled back to a control point
automatically. That
is,
your action is required to
return the job to a control point. This can be done
by using the ROLLIN,fnt. command or resetting
the job's priority' with either the ENQP,pppp,fnt.
or ENPR,pppp,fnt. commands
n.ROLLOUT,xxxx.
Removes job currently assigned to control point n
and places it in the rollout queue for xxxx job
scheduler delay intervals. The job is
automatically scheduled back to a control point
after this period of time. However, you can
return the job to a control point before the time
specified by xxxx has elapsed through the use of
the ROLLIN,fnt., ENQP,pppp,fnt., or
ENPR,pppp,fnt. commands.
The amount of time required for one job scheduler
interval
is
initially set in the IPRDECK but may
be changed via the DELAY command (JS
parameter) described later in this section.
Normally, it is a one second interval.
ROLLIN,fnt.
Allows the job defined by ,FNT ordinal fnt to be
scheduled to an available control point. The
system does this by assigning maximum queue
priority (MXPS) to the job. Examine the H display
(refer. to section 4) to determine the FNT ordinal
of the job.
n.CKP.
Checkpoints job currently assigned to control
point n. The checkpoint information includes a
copy of the job's central memory, the system
information used for job control, and the name
and contents of all local files currently assigned
to the control point.
It
is the responsibility of the
user's job to establish a magnetic tape or mass
storage permanent file to receive the checkpoint
information. Otherwise, checkpoint information
is automatically written to a local file named
CCCCCCC and will not be available if a restart
becomes necessary (RESTART is also
user-controlled and is accomplished via control
statement). Use of this command should be
discreet (typically used at the request of or by the
site analyst), since job and system overhead ar,e
increased. Refer to the NOS Reference Manual,
Volume 1 for supplementary information
concerning the checkpoint/restart feature
available
to
users •
1'1 NOTE,I
If a job has secure system memory (SSM)
status set, it cannot be checkpointed.
SSM status is set for certain' Jobs to
prevent dumping of the job's field length.
Also, subsystems or jobs wi th a queue
priority greater than MXPS or less than
MNPS may not be checkpointed. t
The following job control commands affect scheduling and
execution of jobs in the system. These commands are
normally used only by the site analyst although you may
also b,e required to use them periodically. However, do' not
enter these commands unless specifically directed to do
so. Improper use of these commands can drastically
hamper job flow as well as system performance.
In
certain
cases, jobs may be lost.
n.ENTL,timlmt.
Enters time limit of timlmt for job currently
assigned to control point n. The value of timlmt
can range from 0 to 77777 octal (values 77770 to
77777 are considered infinite). The value entered
is
rounded up to a multiple of
lOS.
This command
overrides the time limit specified when the job
entered the system. The current time limit can
either be increased (up to maximum value) or
decreased. However, if the value of timlm t is less
than the current elapsed time, the job aborts.
n.ENPR,pp.
Enters CPU priority pp for job currently assigned
to control point n. The value of pp can range
"from 1 to 70 octal. This command overrides the
CPU priority set by the SERVICE command. The
current CPU priority can be either increased (up
to maximum value) or decreased. Note that ,this
command is valid only if the queue priority for the
job does not exceed MXPS. t
n.ENQP,pppp.
Enters queue priority of pppp for the job currently
assigned to control point n. The value of pppp can
range from MNPS (mi~imum queue priority)t to
MXPS (maximum queue priority).t This command
overrides the current queue priority. The current
I
queue priority can be either increased or
decreased. This command is valid only if the
current queue priority for the job does not exceed
MXPS.
ENQP,pppp,fnt. or ENPR,pppp,fnt.
Enters queue priority of pppp for a queue type file
defined by FNT ordinal fnt. The FNT ordinal is
determined by examining the H display (refer to
section 4). The value of pppp can range from
MNPS to MXPS.t The value specified overrides
the current queue priority for the file. The
current queue priority can either be increased or
decreased using this command.
.-/ tThe released values for MNPS and MXPS are 0100 and 7760 octal, respectively. These values are subject to future change.
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