how can i run multiple Folding instances on 1 cpu??

Discussion in 'Distributed Computing' started by adamjay, Apr 8, 2004.

  1. adamjay macrumors 6502a


    Feb 3, 2004
    i'm going on a trip later this month for a couple weeks. Serbia, Bosnia, Croatia, and maybe a little bit of Italy and Austria if i have the time.

    One of my machines, the G4 450mhz, is only connected to the internet when i plug its ethernet into my powerbook twice a day (which is connected via Airport, its pretty handy actually). But since i will be gone for a couple weeks, i'd like to have this machine folding the entire time i am gone. I will be taking my powerbook with me and i'm not about to buy a 70ft ethernet cable to keep this thing connected to the internet for uploading/downloading WU's.

    So is there any way to run more than 1 terminal "FAH4" script? I figure this machine usually takes just under a day to finish 1 Gromac WU, so if i can have 15+ instances of F@H running... that i could keep it busy, and then when i return - connect to the internet and submit all the work (most WU's deadlines are well over 14 days)


    the good thing is, this is a business trip - and will help fund my Sonnet 1.4ghz G4 upgrade card!!
  2. stoid macrumors 601


    Feb 17, 2002
    So long, and thanks for all the fish!
    Could you just move the tower closer to the ethernet port before you leave? ;)
  3. bousozoku Moderator emeritus

    Jun 25, 2002
    Gone but not forgotten.
    I've forgotten whether the limit is 4 or 8 at a time. The problem is that you don't have that many processors, so you'll just being stealing time from peter to run paul and nothing will get done.
  4. mc68k macrumors 68000


    Apr 16, 2002
    thats an interesting idea

    u just need the -local switch and different machine id for each instance
  5. Sparky's macrumors 6502a


    Feb 11, 2004
    I have a 500' spool of ethernet cable at work and a ton of plugs (we have leftovers from our new LAN installation) I would make you a 70' cable and send it to you.
  6. Papsomax macrumors newbie

    Apr 10, 2004
    The max is 8 instances. You need to change your config file to machine 1, 2 3, etc. And you need to install the fah program in a separate directory.

  7. adamjay thread starter macrumors 6502a


    Feb 3, 2004
    thanks but i have the multiple instances set up on the machine now.

    bousozoku- yea it would take forever but thats the point. i'll be gone for 2 weeks and if i'd rather have 8 WU's done rather than 1 when i get back.
  8. Dreadnought macrumors 68020


    Jul 22, 2002
    Almere, The Netherlands
    There is a time limit when a WU must be done. So, for some you if the time limit has past, you don't get any points for them! For some, you still get some points for the effort.

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