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                   UNIVERSITY OF YORK - COMPUTING CENTRE


                               MIC - MICOPS.


                           MIC OPERATIONS MANUAL


                                april 1983

              Reflects features of version 11C(1223) of MIC.


                           Author: J. D. Service


                                   NOTE

               This document is based on the original (1975)
               MIC   Operations   Manual,   written  at  the
               Hatfield Polytechnic.
MIC Operations Manual                                                Page 2
UNIVERSITY OF YORK COMPUTING SERVICE - April 1983


                                 Contents.


        1.       Introduction.

        2.       Starting MIC up.

        3.       MIC run time message.

        4.       Operator information.

        5.       Stopping MIC.

        6.       Restarting MIC

        7.       Operator control of COJOBS.

        8.       Operator information on COJOBS.


                                  Index.
MIC Operations Manual                                                Page 3
INTRODUCTION


1.0  INTRODUCTION

MIC is a stand alone program which runs detached  on  a  DECsystem-10,  and
provides a Macro Interpreted Command language (or job control language) for
terminals and batch users.  A full description of MIC functions and uses is
contained in the "MIC USER'S GUIDE".

In a similar fashion to DAEMON, MIC requires to be started by the operator,
but thereafter it requires little operator intervention.



2.0  STARTING MIC UP

As has already been stated MIC must be started up by the operator at system
startup  time.  In order to do this the operator need simply type (assuming
"MIC.EXE" is on SYS:):-

.R MIC

                MIC - VERSION 12C(1213)

DETACHING
.

The above assumes the operator to be logged in as [1,2] and that MIC is not
already  running.   Conveniently,  MIC  may  be  started  by the OPSER auto
command file which is run at system startup.   The  following  sequence  of
commands performs this function.

:SLOG
:DEF MIC=
R MIC
K/F


                                   NOTE

               If MIC is already running  when  "R  MIC"  is
               typed  by  the operator, MIC will detect this
               and return to monitor mode.




It is most convenient to run MIC via the start up file SYSJOB.INI which is
typed on FRCLIN.  MIC may be started by including

LOGIN
MIC

in SYSJOB.INI
MIC Operations Manual                                                Page 4
STARTING MIC UP


2.1  Start Up Problems

Possible problems that may be detected by MIC at startup time (i.e.  On  an
"R MIC") are:

a)  If the ATTACH UUO fails when MIC attempts to "DETACH" then the message

%CAN'T DETACH 

will be output.  If this error occurs MIC will continue to run successfully
(attached), but a systems programmer should be advised as soon as possible.

b)  If MIC is run under a monitor without software interrupts the message

[(MIC)-%(NOPSI) PSI UUO FAILED - MIC WILL USE APRENB UUO - CONTINUING ]


This error requires MIC to be rebuilt to use the  alternative  APRENB  UUO,
however  until  that is done MIC will run success- fully but auto restarts,
as  described  in  section  3.3,  will  not  be  performed  for  all  error
conditions.


As these errors  are  unlikely  to  occur  in  a  running  MIC  no  further
information is given here.



3.0  MIC RUN TIME MESSAGES.

Several MIC messages may be output on the system's OPR terminal when MIC is
running.  All of these messages have the form

[(MIC) - (code) <text>]

where

code    - is a code internal to MIC to assist in debugging MIC problems.
<Text> - is the actual message.



3.1  [(MIC) - (NOMSTR) MIC Not Running - Please Initialise]



This message is output if any user types a DO  (or  "/")  command  and  the
system  operator  has  not started MIC.  This message (which also rings the
OPR bells) will be output every time any user types a  MIC  command,  until
the operator starts MIC up.  The users will receive the message

?(NOMSTR) MIC not running - please try again 

and will immediately return to monitor mode.
MIC Operations Manual                                                Page 5
MIC RUN TIME MESSAGES.


3.2  [(MIC) - (CORERR) - CORE UUO Failed - Continuing]

This message is output when MIC attempts to  expand  its  core  and  fails.
(Fifty  attempts  are  made  between  occurrences  of  this message).  This
problem is non-fatal and implies that no new MIC processes may  be  started
(i.e.  No DO (or "/") commands) until:-

a) Cormax is increased.
b) A running process terminates.

As MIC normally requires a small core allocation this message  is  unlikely
to  occur.   If it should occur the most likely cause is indiscriminate use
of recursive (or nested) Macro commands.



3.3  [(MIC) - (MICRSH) MIC HAS CRASHED - RESTARTING]



MIC HAS DETECTED SOME ERROR IN ITSELF WHICH MAKES IT IMPOSSIBLE TO CONTINUE
RUNNING.  NORMALLY THIS WILL BE PRECEDED BY THE NORMAL SYSTEM MESSAGE


 ?ERROR.  IN DETACHED JOB n MIC
 ?PC OUT OF BOUNDS AT USER PC ADDR nnnnnn


 which will be output on the OPR terminal.  After the output of  the  crash
 message  MIC  will  attempt  to  restart  itself.   This  is done by first
 performing a LOOKUP and RENAME on SYS:MIC.SHR, in order to ensure  that  a
 fresh  copy  of  MIC is read in from disk.  MIC then performs a RUN UUO on
 SYS:MIC.SHR.  Once the new copy of MIC is up and running it  detects  that
 it was started from a detached job, and proceeds to check all lines to see
 if any were running MIC when it crashed.  If any  lines  are  found,  they
 have their MIC word cleared and the message

 [(MIC) - MASTER PROCESS ERROR - JOB ABORTED]

 will be displayed on their terminal.
 Should MIC fail to restart itself (e.G.  A LOOKUP, or RENAME failure)  the
 message

 [(MIC)-?(NORSTR) CAN'T RESTART]

 will be output and the operator must restart MIC manually as described  in
 section 6.

 note:-

 1).  The auto restart only exists in MIC versions 5(35) and later.

 2).  Auto restarts will be attempted for the following error conditions
MIC Operations Manual                                                Page 6
MIC RUN TIME MESSAGES.


        Illegal UUO.
        Illegal Memory reference.       ***
        Address Check.
        Arithmetic Exception.
        Pdl overflow.                   ***
        Non-ex.  Memory.                ***
        External Condition.

 Those marked with an "***" are the only ones which will  be  used  if  the
 APRENB UUO is used.  



 4.0  OPERATOR INFORMATION.

 The operator may obtain information on  the  MIC  master  process  by  the
 normal system programs (systat etc), and also by the command

 .MIC STATUS









 where:-


 PROCESSES - is the number of MIC processes currently in use.

 WAITING - is the number of MIC processes waiting for a process area  (I.E.
 For MIC to expand core).  (Debugging feature).

 LOCK.  - is the state of the master/slave interlock
        (Debugging feature.)

 MASTER - is the MIC master process job no.

 CMDTOT - is the no.  Of MIC process which have been run

 NO.  - Is the process number.

 MODE - is the state of that process.

 LINE - is the line no.  Of the owner of that process.

 MACRO - is the name of the MIC macro running on that process.

 ARGS - are the arguments to that process.
                                    NOTE

     1) Should master be 0 MIC is not running.





 5.0  STOPPING MIC

 Should the  operator  wish  to  stop  MIC  he  should  use  the  following
 procedure:-


 .ATT n [1,2] ;  where n is the job no.  of the master process FROM JOB m

 .HALT
 .K/F

 This procedure is not advised when processes are active, as the associated
 TTY lines may be left in an undefined state.



 6.0  RESTARTING MIC

 Should the operator need to restart MIC after stopping it  or  some  other
 problem he need simply type - 


 .PROTECT SYS:MIC.EXE <166> ;  in order to force a fresh copy from disk

 .R MIC If this procedure is followed any currently running process will be
 superceeded  and  all  new  users will use the new MIC.  The existing copy
 will continue to run but no new users will be able to access it.



 7.0  OPERATOR CONTROL OF COJOBS.

 An option to MIC is the COJOB feature which allows the user to run his MIC
 macros  as  a  separate  job.  Further details are contained in the "COJOB
 USERS GUIDE".

 Several control commands are built in to MIC  to  allow  the  operator  to
 control  the availability of cojobs on the system.  These commands require
 the USER to be [1,2] to execute them.



 7.1  Operator Control Of COJOB Numbers

 A command is provided to allow the operator to govern the number of COJOBS
 available.  Type

 .MIC SET CJREQ n

 where n is the maximum number of COJOB'S required - a value between 0  and
MIC Operations Manual                                                Page 8
OPERATOR CONTROL OF COJOBS.


 16.



                                    NOTE


     1) MIC does not react to a change in the number of required cojobs
     immediately,  but  waits  until no MIC processes are active.  This
     means that there may be some delay in this command taking effect.


     2) This value is intially 4, however this is a parameter which may
     be reset when MIC is built.





 7.2  CONTROL OF THE DEFAULT RUN-TIME OF COJOBS.

 This is provided by the command.

 .MIC SET DEFTIM n

 where n is the number of seconds which a COJOB will  be  allowed  to  run.
 The USER may override this by the /TIME switch in his COJOB request.



                                    NOTE

     If this value is set to -1 then there will be  no  time  limit  on
     COJOBS.





 7.3  Control Of The Maximum Run-time Of COJOBS.

 The system operator may also govern  the  maximum  run-time  available  to
 COJOB users by the command - 

 .MIC SET MAXTIM n

 where n is the maximum number of seconds which a COJOB will be allowed  to
 set in its "/TIME" switch.


                                    NOTE

     A value of -1 means no limit.
MIC Operations Manual                                                Page 9
OPERATOR CONTROL OF COJOBS.


 7.4  Control Of The Availability Of COJOBS.

 The system operator may govern the availability of COJOBS to all users, or
 some group of users by the following commands.


 .MIC SET NO DATASET
 Dataset lines may not now use COJOBS.

 .MIC SET NO REMOTE
 Remote users may not now use COJOBS.

 .MIC SET NO REMSTA
 Users at remote stations may not now use COJOBS.

 .MIC SET NO PTYCJB
 COJOBS may not now be started from a PTY.

 .MIC SET NO COJOBS 
 Nobody may now use COJOBS.


                                    NOTE

     The default is that COJOBS are available to all.





 8.0  COJOB MESSAGES TO THE SYSTEM OPERATOR.

 The COJOB facility in MIC may give rise to a message on the opr  terminal.
 This has the form:-

 [COJOB <name> (macroname) logging error code n - continuing]

 where <name> is the COJOB name as described in the COJOB documentation.

 N is the error code returned in a LOOKUP or ENTER UUO, block.

 This error occurs when a running COJOB is  unable  to  "log"  a  block  of
 output  in  the  logfile  specified  by the user.  This is normally a user
 error, e.g.  Over quota or similar, and requires no operator intervention.



 9.0  OPERATOR INFORMATION ON COJOBS.

 If the COJOB option is supported by MIC the "status" command will give the
 operator some extra information.


 .MIC STATUS
MIC Operations Manual                                               Page 10
OPERATOR INFORMATION ON COJOBS.


 where most of the extra information is self explanatory.

 The only unexplained extra value is the one given in  brackets  after  the
 cmdtot, this extra figure is a count of the number of COJOBS run.
                                                               Page Index-1



                                   INDEX




 Availability of COJOBS  . . . . . . . 9

 CAN'T DETACH  . . . . . . . . . . . . 4
 COJOB Messages to the System Operator  9
 COJOB numbers . . . . . . . . . . . . 7
 CORERR  . . . . . . . . . . . . . . . 5

 LOGGING ERROR . . . . . . . . . . . . 5

 Maximum Run-time  . . . . . . . . . . 8
 MIC SET DEFTIM  . . . . . . . . . . . 8
 MICRSH  . . . . . . . . . . . . . . . 5

 NOMSTR  . . . . . . . . . . . . . . . 4
 NOPSI . . . . . . . . . . . . . . . . 4

 Operator Control of COJOBS  . . . . . 7
 Operator Information  . . . . . . . . 6
 Operator Information on COJOBS  . . . 9

 Restarting MIC  . . . . . . . . . . . 7
 Run Time Messages . . . . . . . . . . 4

 Start up Problems . . . . . . . . . . 4
 Starting MIC up.  . . . . . . . . . . 3
 Stopping MIC  . . . . . . . . . . . . 7