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Thread: Collatz performance on iGPU

  1. #1
    Silver Member
    MindCrime's Avatar
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    February 26th, 2014
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    Collatz performance on iGPU

    I haven't been running much Collatz lately with the Einstein 135th birthday challenge and this is the first time I've had a chance to check on its performance while running on my HD4000. I can see right now it's running .497 cpus +1 intel_gpu.
    The app is "solo_collatz 6.04 (opencl_intel_gpu)

    I dont have much a recent collatz history so I can't even compare to nvidia gpu atm but this is what I get:
    18,177.57 .... 15,461.43 .... 7,438.99 solo_collatz v6.04 (opencl_intel_gpu)
    5 hours for ~ 7500 credit. Gpu-z says the HD4000 is running 97-98% load, according to open hardware manager CPU graphics are drawing ~13.8w (i think 15 is max), so far this app saturates the igpu the best, i know seti and einstein loads jump around a lot but that could be the nature of the work.

    Just looking for some iGPU comparisons if someone could share. This is a single thread, no concurrent work on the igpu, its on a i5-3570k @ 4.2ghz with (gpuz says 10mb dedicated and 68mb dynamic ram)

  2. #2
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    Re: Collatz performance on iGPU

    My mac mini's with HD 4000 do about 38k/day. GPU only, no CPU tasks.
    "Don't confront me with my failures, I had not forgotten them" - Jackson Browne

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  3. #3
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    Re: Collatz performance on iGPU

    Good to know, i figure this is about 35k/day, but with other cpu work running.

  4. #4
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    Re: Collatz performance on iGPU

    To be clear, my mac minis are running CPU tasks in parallel, just not collatz CPU tasks. The point was that the credits/day number was on the GPU only.
    "Don't confront me with my failures, I had not forgotten them" - Jackson Browne

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