Sched - Control Data 3500 Reference Manual

4.1.2
SCHED
4-2
SCHED cards, one or two per job, immediately follow the JOB card in the
job deck.
$SCHED, TIME=te, CLASS=cl, CORE=qp, SCR=seg ,ABORT=dl,
·····RF=flg,peql=u
1
'··· ,peqn =Un
All fields are optional and may appear in any order on either card. If a peq
field is repeated, the first entry has precedence. If'another field is repeated,
the second entry has precedence. A field cannot be continued from one card
to another.
DO NOT SCHEDULE MORE THAN A JOB NEEDS. A job that requests excess
core, mass storage, and peripheral equipment may wait needlessly for these
facilities, which must be available before the job can be initiated. Also, when
the job is processed, the unused facilities are withheld from other jobs
reque sting them.
TIME = te
CLASS = cl
CORE = qp
Estimated running time (0-99999 minutes). It is not a limit.
MASTER uses the field to determine if the job is special;
when the field is omitted, the job cannot qualify as a special
job.
cl class
E Emergency
B Background
I Input/Output
C Compute
When both TIME and CLASS fields appear on the SCHED cards
and te lies in the special class range, the job acquires the
higher class as determined by both fields. Thus, if the job
is specified as E or B, which are higher classes than special,
it maintains its specified class, but if it is specified as I or
C, which are lower classes than special, it is classified as
special.
When the CLASS field is omitted and the job does not qualify
as special, it becomes I or C depending on installation para-
meter, class.
Estimate of the maximum amount of core in quarter pages
used by tasks of the job residing in core simultaneously.
The estimate includes requirements of library tasks such
as compilers and assemblers. Estimates for object decks
must allow for expansion of pseudo instructions, macros,
library routines, etc.