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Einstein @ Home

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TigerDeath
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2012/06/12 11:59:03 (permalink)
Wow, didn't realize there were so many other crunching/folding applications!
Definitely joining Einstein @ Home because I've always loved Astronomy and I know there's tons of Neutron Stars out there to find!
I've already joined Crunching @ EVGA. Hopefully will get my rigs all up and running and we'll find something.
Have a great one!

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    Viper97
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    Re:Einstein @ Home 2012/06/12 12:35:57 (permalink)
    Thanks for joining the team!  Let us know if we as a group can help.  Meanwhile Crunch on!


     
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    Afterburner
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    Re:Einstein @ Home 2012/06/12 13:39:34 (permalink)
    Welcome! And Thank You!

     
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    planetclown
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    Re:Einstein @ Home 2012/06/12 17:32:36 (permalink)
    I know, so many project choices!

    If you're into astronomy, you may also want to look at cosmology@home, milkyway@home, or theskynet.org

    Welcome to the team!

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    linuxrouter
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    Re:Einstein @ Home 2012/06/12 17:50:54 (permalink)
    TigerDeath

    Wow, didn't realize there were so many other crunching/folding applications!
    Definitely joining Einstein @ Home because I've always loved Astronomy and I know there's tons of Neutron Stars out there to find!
    I've already joined Crunching @ EVGA. Hopefully will get my rigs all up and running and we'll find something.
    Have a great one!

     

    Welcome and thanks for joining our team. Einstein is a great choice for a project if you are into astronomy. Searching for binary pulsars is quite a bit of fun. The Einstein forum and community is also very helpful and knowledgeable.
     
    If you plan to run the Einstein project via your GPUs, let me know. I spent the last year and half testing different system and software configurations to squeeze every last ounce of performance out of the CUDA app. I can give you a few tips to help get the most out of the GPU application.

     
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    Viper97
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    Re:Einstein @ Home 2012/06/12 18:01:31 (permalink)
    And the team.. just keeps on coming!  Nice work.
     


     
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    TigerDeath
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    Re:Einstein @ Home 2012/06/13 05:35:52 (permalink)
    linuxrouter,
    I will definitely be hitting you up in the very near future as I purchased a GTX 670SC card just yesterday.... Should be in my case by tomorrow night and I have the rest of the week/weekend to optimize all of my settings. I'll definitely want to be using those fancy GPU's for crunching, so expect a thread or PM from me soon!
     
    As for the rest of the replies.... Wow! You guys are the greatest and really know how to make new members feel welcomed! THANK YOU!
    -Pricky

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    TigerDeath
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    Re:Einstein @ Home 2012/06/18 06:22:36 (permalink)
    GTX 670 is here... Where do I start? :)
     

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    linuxrouter
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    Re:Einstein @ Home 2012/06/18 18:47:34 (permalink)
    TigerDeath
    GTX 670 is here... Where do I start? :)

     
    The first thing to keep in mind about Einstein GPU tasks is that the GPU application is also CPU dependent. There is considerable traffic generated between the CPU and GPU and because of that the PCI-E bandwidth is very important and will have significant impact on performance. For hardware and software configuration, I would suggest the following.
     
    1) Install the 670 in a native x16 slot that is set at x16. You can confirm this with GPUZ. If you have a board with PCI-E 3.0 support, you will want to set the registry option that enables PCI-E 3.0 support. The application is able to take full advantage of PCI-E 3.0 x16 bandwidth if available and especially when running multiple tasks at once (see later). Ivy Bridge with Z77 and Sandy Bridge Extreme with X79 support PCI-E 3.0.
     
    2) For hyperthreaded CPUs, you will want to set the maximum CPUs used to 50% due to CPU dependence. This will minimize the use of hyperthreading and give the best performance for the GPU tasks. Here is how to set that.
     
    BOINC 6.10.x - Advanced -> Preferences -> processor usage On multiprocessor systems, use at most 50% of the processors.
    BOINC 6.12.x+ - Tools -> Preferences -> processor usage On multiprocessor systems, use at most 50% of the processors.
     
    3) If you have an i7 processor, optimal overclock would be 4.0 GHz or greater. The higher frequencies can significantly improve performance with GPU tasks. 4.5 GHz or greater is even more optimal but keep an eye on your CPU temperatures.
     
    4) After you setup an account by attaching to the project, you can login to your preferences via the Einstein website.
     
    http://einstein.phys.uwm.edu/home.php
     
    Select Einstein@Home preferences from here. There is an important option here.
     
    GPU utilization factor of BRP apps.
     
    By default, this option is set to 1.0 which means that the GPU will run one task at a time. Since the GPU application does not fully take advantage of a high-end GPU like the Keplers, the GTX 670 and 680 can optimally run at three tasks at once. Beyond that, the gains are minimal. Each task requires approximately 300-350 MB of memory in Windows and 250-275MB of memory in Linux. Set the utilization factor based on the following choices:
     
    1.0 - one task
    0.5 - two tasks
    0.33 - three tasks
    0.25 - four tasks
     
    5) The CUDA application runs faster in Linux than Windows but still performs very well in Windows.
     
    6) For Windows, you can run Process Lasso for setting application priority and CPU affinity. I prefer setting the Einstein BRP4 application to high priority and to set affinity to physical cores only. Once Einstein is crunching on your GPU, the BRP4 application should show up in the Process Lasso task list and you can then right-click on it and set these options. You only have to configure for one of the running tasks and the others will update automatically. This step take a bit of work to get going and is completely optional.
     
    There are some other small tweaks as well but these are the major ones that will help you get the most performance out of the Einstein GPU tasks.
    post edited by linuxrouter - 2012/06/18 18:49:47

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    TigerDeath
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    Re:Einstein @ Home 2012/06/18 18:57:12 (permalink)
    Wow dude! I don't even know what to say, but that's quite a writeup! Thank you for all of the information!
    Give me a little bit to get this set up and to a point where I have more questions.
    My son is turning 7 on Wednesday and I am planning a nice 5 day party (Kind of) and am taking him to Schlitterbahn (NB) later tgus week, so will be kind of out of pocket for a bit. I will update this thread as soon as I've got questions.
    Thanks again linux!
     

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    linuxrouter
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    Re:Einstein @ Home 2012/06/19 13:25:09 (permalink)
    TigerDeath
    Wow dude! I don't even know what to say, but that's quite a writeup! Thank you for all of the information!
    Give me a little bit to get this set up and to a point where I have more questions.
    My son is turning 7 on Wednesday and I am planning a nice 5 day party (Kind of) and am taking him to Schlitterbahn (NB) later tgus week, so will be kind of out of pocket for a bit. I will update this thread as soon as I've got questions.
    Thanks again linux!

     
    No problem and happy birthday to your son! :)

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    Afterburner
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    Re:Einstein @ Home 2012/07/05 14:24:37 (permalink)
    Not sure just how we missed your post above linuxrouter. Better late than never right!
     
    Thank you for all you do to help us 

     
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    linuxrouter
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    Re:Einstein @ Home 2012/07/05 15:38:13 (permalink)
    Afterburner

    Not sure just how we missed your post above linuxrouter. Better late than never right!

    Thank you for all you do to help us 

     
    Glad to be of help and thanks!
    post edited by linuxrouter - 2012/07/05 15:41:45

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