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fork (or run view() on different thread)

drdanmc

Is there a way to use the view() command in a different thread somehow?  For example, in ADE-L, when a simulation is running, the spectre.out log window is getting updates but my virtuoso session is otherwise still responsive.  I am guessing that this is because of using view() like view(my_file nil "my_title" t) and that spectre has been launched via ipc.  Every once in a while I have something running in skill that is somewhat lengthy (10-20 minutes) and  like to have an output log file get tailed.  I tried view() but that window doesn't refresh until after the long job is done.  In the mean time, I've been using something like:

log_file="my_log.txt"

log_port = outfile(log_file)

fprintf(log_port, "Start of log...\n") drain(log_port)

cid=ipcBeginProcess(strcat("xterm -sb -geometry 100x120+20+20 -title my_log -e tail -f " log_file))

ipcWaitForProcess(cid, 5)

;; long skill stuff that along the way writes to log_port

close(log_port)

ipcKill(cid)

view(log_file)

is this pretty much the only way or is there some way to tell view() to run in a different thread somehow?  I'm guessing this is the only way but thought I'd ask and also since there is at least something that works, someone else may find it useful.   This can be helpful in an ocean environment.

-Dan

Parents

  • Dear Dan,

    you could also consider to run your lengthy skill code in a child virtuoso instance (which will require an additional license). If you put your lengthy skill code in the file
    longExecutionTime.il  and the exit statement as last statement in the file you can start an ipc the parent virtuoso-session :

    (procedure childFinished(childID tData)
    printf("child finished\n")
    );procedure

    cid=ipcBeginProcess("virtuoso -nograph -replay longExecutionTime.il"  "" nil nil 'childFinished)

    Then you can read the logfile(in the parent instance) created by the child instance using e.g.

    view("my_log.txt" 'default "Log" t)

    Kind regards,
    Matthias

  • in reply to mschw

    Matthias,

    If you're running in a child virtuoso (you have to be a bit careful about this because of things like the library manager interfering), it won't take an additional license since most of the interactive tool licenses are "UHD" licenses (i.e. the same user, host, display combination shares the license - you can run it as many times as you like and it only uses a single license). Probably a bit excessive just to get a tailing log file though...

    Regards,

    Andrew.

Reply
  • in reply to mschw

    Matthias,

    If you're running in a child virtuoso (you have to be a bit careful about this because of things like the library manager interfering), it won't take an additional license since most of the interactive tool licenses are "UHD" licenses (i.e. the same user, host, display combination shares the license - you can run it as many times as you like and it only uses a single license). Probably a bit excessive just to get a tailing log file though...

    Regards,

    Andrew.

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