This help file describes the PILOT STARTUP SEQUENCE FOR THE OVEN.
These instructions assumes that crater (or dorado) is running and that the oven network is intact. These instructions also assume that the on-board VME computers are running. IRAF parameter defaults only work for oven0v0.
See user_login for information about non-pilot or remote logins.
Do not panic and reboot or logout too hastily. Rebooting normally takes about 10 minutes depending on the condition of the disk. This login procedure will take at least 3 minutes if you are practiced. You might get into even more trouble than you already had.
Pilot (or Pilot2) should definitely not be running oven on the other workstation (crater or dorado) at the same time. This is not impossible, but it is rather dangerous --- you could destroy the other database if you make a mistake.
The console login starts with a blank screen that says: "crater login:" or "dorado login:" along with a Solaris graphic.
After entering the username and password, this should give you an openwindows screen with:
- a console window - purple xgterm window with IRAF - green xgterm window with IRAF - red xgterm window with IRAF - blue xgterm window with IRAF - ximtool (image display) - a mailtool (for mail) - a clock (roughly in that order)It takes about 40 seconds for all the windows to start.
This step is no longer needed as the mirror tasks used to run the oven are loaded automatically when the pilot logs in. (see loginuser.cl)
However, you may still load the mirror package in each xgterm window if you prefer.
cl> mirror mi>
The "mi>" prompt indicates that the mirror package is loaded. Type "?" for a list of the tasks in the active package (the last one loaded from the command line).
mi> ? odisp oven ovend oveng ovenr tcmark ograph ovenb ovene ovenp ovenw mi>
If you have not loaded the mirror package, you can still get a list of the tasks in the package by saying "help mirror" or "help mirror option=dir".
Shared memory segments must be created and initialized first. Check these with "ipcs". There should be 3 segments, one each for on-board computers oven0v0, oven0v1 and oven0v2. And with Solaris 2.6 there are sometimes other segments.
Example (that's OK):
mi> !ipcs IPC status from
as of Wed Sep 9 13:13:47 1998 Message Queue facility not in system. T ID KEY MODE OWNER GROUP Shared Memory: m 0 0x50000d40 --rw-r--r-- root root m 1 00000000 --rw-rw-rw- dwatson other m 2 0x00000100 --rw-r--r-- pilot other m 3 0x00000101 --rw-r--r-- pilot other m 4 0x00000102 --rw-r--r-- pilot other Semaphores: mi>
If shared memory segments do not exist, the oven task will create and initialize (fill with zeros) them. The shared memory segments can only be created by the pilot. Run the oven task for all three computers as shown below. (use the blue window) Before you "exit" from each oven, use the "Database" menu to "Read parameters from disk". If you know that you have "good" parameters in the v-computers, you could "Read parameters from oven" instead. "Read parameters from disk" should always work, but could give you clock settings that are hours or even days old.
mi> oven ncomp=0 (Exit) mi> oven ncomp=1 (Exit) mi> oven ncomp=2 (Exit) mi>
If an oven task crashes, use flpr to flush the process cache before restarting.
unlearn oven resets the default parameters for the task. oven.readonly must be "no" (which is not the default) to modify shared memory segments or the database file. And oven.remove must be "no" to make a permanent shared memory segment. If you leave oven.readonly as "yes", you will get the message "hoven error 30".
mi> unlearn oven mi> oven.readonly=no mi> oven ncomp=0
Check for all pilot tasks by using:
mi> !ps -efc | grep pilot mi>Oven tasks appear as "/iraf/mirror/bin.ssun/x_mirror.e". The cls in your xgterm windows appear as "/iraf/iraf/bin.ssun/cl.e", while the xgterm itself appears as "xgterm -name ovenBlue .......". Note that each background daemon has an associated cl which appears as "/iraf/iraf/bin.ssun/cl.e -d /home/pilot/uparm/bkg553b".
If you only want to check for the oven tasks, you can say:
mi> !ps -efc | grep mirror |sort (shows all mirror tasks) mi>If you aren't sure, kill all pilot "mirror" tasks (and their parent PIDs) and start clean. Killing a daemon may cause its associated cl task to go into a loop and use a lot of CPU time.
If you only want to check for the background tasks, you can say:
mi> !ps -efc | grep bkg |sort (shows all IRAF background tasks) mi>
To kill tasks, use the Unix command:
mi> !kill -9 xxxxWhere xxxx is the PID number displayed by ps. PID in this case means Process IDentifcation, not Proportional, Integral, Derivative.
Hint: Always use care when killing tasks. It is particularly unproductive to kill the window you are working in. It is also recommended that you kill or spawn tasks when the clock is between 30 and 45 seconds after the minute. This avoids starting or stopping tasks while they are communicating. Try to use the IRAF kill command whenever possible.
Advanced users who are interested in a rapid kill may wish to try scopes.furnace.killer from J. Hill's scopes external IRAF package. It is fast, but dangerous.
Now you are ready to start the daemons in the blue window:
mi> ovenp & mi> ovenb & (if you are coldstarting, turn on the on-oven VME computers here) mi> ovend & mi> oven readonly=no
The blue window will now continue the oven program talking to the shared memory segment for oven0v0. If the oven0v0 computer is functioning, you should get fresh data each minute.
For a brief description of the daemon's function type: help ovenp
Hint: Beware of parameter database synchronization problems after wierd scenarios. One possible problem occurs if the VME computers booted before the oven daemons were running. Download parameters to the oven (and double check clock parameters).
Hint: Don't start background jobs if they are already running! The old daemons should have been killed off in the previous step. If there is a duplicate daemon already running, you will get an error message like: "poven error -3".
You are never really secure unless you have your error daemons running.
Start these four daemons in the red window:
mi> ovene ncomp=0 offset=10 & mi> ovene ncomp=1 offset=11 & mi> ovene ncomp=2 offset=12 & mi> oveng & mi> oven offset=14Set the oven program in the red window to read the error log.
To verify which background tasks are running in a particular xgterm window, use the IRAF jobs command.
Example from the blue window:
mi> jobs  1473:50 Running ovenb &  1473:38 Running ovenp &  1407:02 Running ovend & mi>
Start the cron task in the purple window:
mi> ovenc &ograph and odisp should now display data at appropriate intervals.
To stop the cron task or another daemon, use the IRAF kill command in the relevant window: kill x (where x is the job number [1-4])
Start the two ovenr daemons in the green window. These are only needed during fast rotation --- they log the measured rotation speed in a file every 6 seconds.
mi> ovenr connection="oven0v0,5107" > rspeed.oven0v0 & mi> ovenr connection="oven0v2,5107" > rspeed.oven0v2 & mi>
If the rspeed file exists, you will have to change the > to a >> in order to append to a file. Then to view the rspeed file on the green window screen, start a Unix tail task "!tail -f rspeed.oven0v0". You may stop this tail task with a ^C without any interuption to the ovenr daemons.
To check the communication links, use "!netstat -f inet".
To remove a shared memory segment, use "!ipcrm -m xxx".
To check the available swap space, use "!swap -s".
To check the available disk space and to see which disks are mounted, use "!df". To see the disk use in the current directory, use "!du".
To make a hardcopy of a window, use "!xwd |xpr -device ps |lp". If the window is white on black use "!xwd |xpr -device ps -rv |lp" to reverse it. (These commands are usually aliased to "hc" and "hr".)
To logoff from the console, select "Exit" from the Rootmenu and then confirm your selection when prompted. (The oven pilot should never need to logoff, except for software changes or workstation failure.)