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DENIS

Discussion in 'Team OcUK Distributed Computing Projects' started by PDW, Sep 1, 2015.

  1. andy_taximan

    Wise Guy

    Joined: Apr 20, 2014

    Posts: 1,809

    Location: Herts/uk

    the quick wu`s are finished it seems, chucking longer taking jobs at me all day, up to 20mins now each
     
  2. currob

    Hitman

    Joined: Nov 15, 2011

    Posts: 901

    Location: Stafford

    That's a good thing I reckon. I'm sure some of the issues have been caused by the insanely fast turnarounds since the optimized app :)
     
  3. hamesy

    Wise Guy

    Joined: Nov 22, 2007

    Posts: 1,595

    Location: Cannock

    Doesn't work unfortunately. My guess is it's looking at the file itself and what it does rather than the filename.
     
  4. currob

    Hitman

    Joined: Nov 15, 2011

    Posts: 901

    Location: Stafford

    Just noticed your location hamesy, i'm just up the road in gridlocked Stafford :)
     
  5. hamesy

    Wise Guy

    Joined: Nov 22, 2007

    Posts: 1,595

    Location: Cannock

    Nice to see someone local :)
     
  6. currob

    Hitman

    Joined: Nov 15, 2011

    Posts: 901

    Location: Stafford

    Now I'm getting a little confused with all the new optimizations/apps. I'm currently using sesefs latest app but crunch3r has some new ones out:

    [​IMG]

    Which one are you using PDW ? Do you know which is best ? I can't seem to find any more information anywhere. :confused:
     
  7. PDW

    Wise Guy

    Joined: Feb 21, 2014

    Posts: 1,729

    I'm using Sesef's app but have scaled back for the moment.

    I have tried Crunch3r's app on linux and it's obviously much faster than the stock code but is slower than running Sesef's on Windows. I did read a thread on the Denis site about a comparison and IIRC Sesef's is the one to use for Windows.

    Will need to get all my boxes changed over to Windows in time for the challenge :D
     
  8. currob

    Hitman

    Joined: Nov 15, 2011

    Posts: 901

    Location: Stafford

    I saw that one i think, then a little later on, crunch3r's new revised app appeared with sse4.1 and that's what confused me but from what you're saying I'll stick with sesef's then :)

    Just wanted to make sure I get the max possible for the challenge and soooo close to 100k rac :)
     
  9. currob

    Hitman

    Joined: Nov 15, 2011

    Posts: 901

    Location: Stafford

    Congrats Boycie: 200k rac !! :)
     
  10. hanluc

    Mobster

    Joined: Oct 22, 2010

    Posts: 2,955

    Location: Ratae Corieltauvorum

    On the short tasks, I found the sse4.1 to be slightly quicker than the lastest sesef's one, about 6-7 seconds, I was doing 3m 15s on crunch3rs and 3m 22s on the other. Not tried it on the longer ones. This was on a 2700K @4.7ghz
     
  11. currob

    Hitman

    Joined: Nov 15, 2011

    Posts: 901

    Location: Stafford

    That's good to know then, if the difference is so little then I'll definitely leave my apps well alone, finally have 4 machines running the sesef's apps with none of my previous issues. Keeping around 4 to 6hrs of tasks and communicating with the servers every 2 hours (ish).
     
  12. ozaudio

    Mobster

    Joined: Jan 23, 2010

    Posts: 3,776

    Location: St helens

    I see texes connection joined. He helped last time in pots aswell I remember
     
  13. hanluc

    Mobster

    Joined: Oct 22, 2010

    Posts: 2,955

    Location: Ratae Corieltauvorum

    New sesef AVX2 version released, just about to try it out now.

    EDIT: AVX2 version gives me immediate computation errors (3770K)

    DOH! Ivybridge doesn't support AVX2 :o I'll try it on Haswell.
     
    Last edited: Oct 25, 2015
  14. currob

    Hitman

    Joined: Nov 15, 2011

    Posts: 901

    Location: Stafford

    Ooooh, can't wait to hear what you think of it :)
     
  15. hanluc

    Mobster

    Joined: Oct 22, 2010

    Posts: 2,955

    Location: Ratae Corieltauvorum

    Haswell CPU@2.577ghz

    sse4.1 = 10 mins per WU average.
    AVX2= 9mins 17 secs average.

    9.2% increase.

    As long as they validate OK, well worth changing.
     
  16. andy_taximan

    Wise Guy

    Joined: Apr 20, 2014

    Posts: 1,809

    Location: Herts/uk

    Trying it now
     
  17. currob

    Hitman

    Joined: Nov 15, 2011

    Posts: 901

    Location: Stafford

    That's decent :)
     
  18. ozaudio

    Mobster

    Joined: Jan 23, 2010

    Posts: 3,776

    Location: St helens

    seem to be getting a large backlog of " awaiting validation " of work units, its been going up each day, over 300 now.
     
  19. currob

    Hitman

    Joined: Nov 15, 2011

    Posts: 901

    Location: Stafford

    Still sitting in the client task list on your pc?

    Just looked at my tasks page on denis site; i have 1077 validation pending ! :(

    I started a thread on denis forum here Andy: http://denis.usj.es/denisathome/forum_thread.php?id=78#594
     
    Last edited: Oct 27, 2015
  20. divebod

    Gangster

    Joined: Aug 2, 2013

    Posts: 107

    Location: Oxfordshire

    I've switched my CPU across from F@H to DENIS. Got it set up and running with the SESEF optimised app running (I think). It's generating 4 tasks and each is taking about 2 hours to complete. Does this seem right? The CPU is i5 4690k at stock. I have set one core in F@H to fold for the GPU reporting there.

    The two files are in correct directory (Programdata\BOINC\projects\denis....\

    Thanks for any advice.