Results 1 to 3 of 3

Thread: SRBase - USE MULTIPLE THREADS

  1. #1
    Administrator
    Bryan's Avatar
    Join Date
    October 27th, 2010
    Location
    CO summer, TX winter
    Posts
    6,457

    SRBase - USE MULTIPLE THREADS

    I stole this from [H]ardOCP's forums. If you are going to run the LONG WU this would be a big deal! You can run multi-threaded. I haven't played with it, but theoretically it should speed up those really long WU. Need to try it an see how much of each thread gets utilized. They guy who posted it recommended 4-12 threads.

    Code:
    <app_config>
    <app_version>
    <app_name>srbase5</app_name>
    <cmdline>-t4</cmdline>
    <max_concurrent>1</max_concurrent>
    </app_version>
    <app_version>
    <app_name>srbase11</app_name>
    <cmdline>-t4</cmdline>
    <max_concurrent>1</max_concurrent>
    </app_version>
    <app_version>
    <app_name>srbase12</app_name>
    <cmdline>-t4</cmdline>
    <max_concurrent>1</max_concurrent>
    </app_version>
    <project_max_concurrent>4</project_max_concurrent>
    </app_config>

    A list of app names are

    srbase = Sierpinski / Riesel Base
    srbase2 = Riesel Base
    srbase3 = Sierpinski Base
    srbase4 = Sierpinski / Riesel Base - short
    srbase5 = Sierpinski / Riesel Base - long
    srbase6 = Sierpinski / Riesel Base - average
    srbase7 = Riesel Base - short
    srbase8 = Sierpinski Base - short
    srbase9 = Sierpinski / Riesel Base - average2
    srbase10 = Sierpinski / Riesel Base - average3
    srbase11 = Sierpinski / Riesel Base - long2
    srbase12 = Sierpinski / Riesel Base - long


  2. #2
    Gold Member

    Join Date
    August 16th, 2012
    Location
    Milton Keynes, UK
    Posts
    1,314

    Re: SRBase - USE MULTIPLE THREADS

    There’s a limit for the number of threads since it will start to saturate memory. There should be some threads at mersenneforum or PrimeGrid about this. I know from my experience for exponents from n=5M multi thread LLR is quicker than running several individual LLR.

  3. #3
    Username is valid
    Guest

    Re: SRBase - USE MULTIPLE THREADS

    You could have stolen that from our forum back in June !
    With testing from hanluc on bigger boxes, I stick to 4.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •