RFC 325 (rfc325) - Page 2 of 9
Network Remote Job Entry program - NETRJS
Alternative Format: Original Text Document
RFC 325 Network Remote Job Entry Program April 1972
UCLA REMOTE JOB SERVICE
To use the UCLA 360/91 via RJS it is necessary to:
1) Have a valid account at UCLA
2) Have an assigned RJS terminal id.
These can both be obtained from:
Bob Braden
UCLA
Math Sciences Building
3531 Boelter Hall
Los Angeles, Calif. 90024
(213) 825-7518
The remainder of this paper describes the program in greater detail
and the steps necessary to run a users program at UCLA.
DESCRIPTION OF THE PROBLEM
There are some jobs that are compute bound for such a long time that
they seriously affect response time for interactive users. These are
jobs that run from ten hours upward. Another computer was needed to
handle these jobs. The UCLA-CCN 360/91 was suggested. The 360/91 is
primarily a batch processing type of system where, as a matter of
course, it is tuned to jobs that typically run for hours. UCLA does
have software to allow jobs to be submitted via remote terminals,
either through direct communication lines or through the ARPANET.
HOW AND WHY THE PROGRAM WAS WRITTEN
UCLA's software allowed the remote terminals to have unlimited
connect time (i.e. The time the terminal was actually connected to
the 360/91) at no charge to the user. The software at UCLA required
that each terminal be allotted 2k (2048 S/360 bytes) core for each
connection that is open at any one time. Now, since each terminal
could have a virtual card reader, virtual line printer and a virtual
card punch, this means that one terminal could occupy 10k of core at
UCLA. This - according to the UCLA systems people - would put a
heavy load on the system if all the ports were occupied at once. So
to alleviate this situation - as a matter of design decision - it was
decided to have the operator request to have the various connections
opened. The operator could not have more than three connections at
any one time. He could have the two operator connections and one of
the following open at once:
Hicks