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8th BOINC Pentathlon - Marathon ([email protected]) Project Support

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post #21 of 242 (permalink) Old 04-29-2017, 07:39 PM - Thread Starter
2+2=5
 
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Originally Posted by Diffident View Post
 
Code:
127.0.0.1 www.cosmologyathome.org

Seems to work at blocking internet access in hosts file for me.


Nice if someone could confirm.

 

That blocks the uploads on my Ryzen machine. :thumb:



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post #22 of 242 (permalink) Old 04-29-2017, 07:49 PM - Thread Starter
2+2=5
 
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Originally Posted by Jpmboy View Post

well this is not very efficient:



I gota have something set wrong. redface.gif

changing the 5960X over to the +VM version ... learning slow.

 

The VBox planck tasks I am running say they are using all 16 threads of my 1700, but actual CPU usage hovers right around 50%.  At first glance it looks like an issue with this version of VirtualBox, and the way that it sees the Ryzen processor.  It is working, so I'm not sure if I want to update to a newer version of VBox.  I am running BOINC version 7.6.33 and VirtualBox 5.0.18. 



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post #23 of 242 (permalink) Old 04-29-2017, 08:30 PM
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post #24 of 242 (permalink) Old 04-29-2017, 09:37 PM
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The planck users in last 24 hours number has quadrupled since I last looked at it and there are a lot more legacy tasks available now.


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post #25 of 242 (permalink) Old 04-30-2017, 06:28 AM
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Quote:
Originally Posted by tictoc View Post

The VBox planck tasks I am running say they are using all 16 threads of my 1700, but actual CPU usage hovers right around 50%.  At first glance it looks like an issue with this version of VirtualBox, and the way that it sees the Ryzen processor.  It is working, so I'm not sure if I want to update to a newer version of VBox.  I am running BOINC version 7.6.33 and VirtualBox 5.0.18. 

the oracle VBox is using at most 2 cores/4 threads here... avg of 37% CPu usage out of 10c/20T. IDK, seems like a waste of time. I could do the same with an i3. thinking.gif

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post #26 of 242 (permalink) Old 04-30-2017, 07:21 AM
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As I mentioned in the project nomination thread I don't think [email protected] is a good project for the Pentathlon. They haven't really put out tangible results.

When I crunched it before the estimated time durations are all completely off and I noticed that it has higher memory use. The new virtualbox units seem to be reporting half the cores you have enabled , which is an oddity in itself.

The current admin for the project is new to crunching as of July 2015 ; for a project supposedly backed by major players such as NSF and a worldclass university (University of Illinois at Urbana-Champaign) it is lacking in polish. Ironically the move to Paris as of 2016 has helped it.

Per their revised FAQ:
VT-x/AMD-v for the new app
Quote:
[email protected] runs multiple “apps.” The requirements list is for the default app (named camb_boinc2docker), but if your computer does not meet them, there is an older app available (named camb_legacy) which runs on just Windows and Linux but supports 32-bit processors and does not need Virtualbox or VT-x/AMD-v. At this point we only use the results from camb_legacy for testing the PICO algorithm and not for comparing with data since the app is fairly old. However, the results do serve a limited purpose and allow [email protected] users who do not meet the above requirements to continue to contribute, thus we continue to provide it. We encourage users who can run camb_boinc2docker to do so, however.

and some settings
Quote:
I enabled VT-x/AMD-v but jobs say “Scheduler wait: Please upgrade BOINC”

If you attempted to run a camb_boinc2docker job before enabling VT-x/AMD-v, it is possible your client is stuck in a state where it still thinks this feature is disabled. It will give you a message “Scheduler wait: Please upgrade BOINC to the latest version” and the log files will show “ERROR: Invalid configuration. VM type requires acceleration but the current configuration cannot support it.” To fix this:
  1. Remove the [email protected] project
  2. Shut down the BOINC client (from Advanced View choose the menu option Advanced->Shutdown Connected Client)
  3. Go to your BOINC folder and edit the file client_state.xml
  4. Remove the line which contains
  5. Restart your BOINC client and readd the project
Quote:
camb_boinc2docker is multi-threaded and will use up all available cores which BOINC allows it to. For example, if in the BOINC computing preferences you have set “Use at most 50% CPU time” and you have a 4-core processor, the job will use two of them.

If for whatever reason you wish to limit the number of cores used without changing the global BOINC CPU usage, you can do so by creating a file called "app_config.xml" in the [email protected] project folder and adding the following text, with the “2” under avg_ncpus replaced by however many CPUs you want to use (thanks to Crystal Pellet):
Code:
<app_config>
    <app>
        <name>camb_boinc2docker</name>
        <max_concurrent>1</max_concurrent>
    </app>
    <app_version>
        <app_name>camb_boinc2docker</app_name>
        <plan_class>vbox64_mt</plan_class>
        <avg_ncpus>2</avg_ncpus>
    </app_version>
</app_config>
Notes:

If after this BOINC gives an error reading your app_config.xml file, make sure you saved the file with a character encoding apropriate for your system (options to do so may vary by text editor).
You will need to restart your BOINC client for this take effect
This will only affect jobs started after you created the file (jobs started before will show “X CPUs” but still run using all of them, you can just abort these)
Reseting or removing/readding the project will delete this file so you will have to remake it

► Recommended GPU Projects: [email protected] , [email protected] (FP64) (AMD moreso) ► Other notable GPU projects: [email protected] (Nvidia), GPUGrid (Nvidia) ► Project list


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post #27 of 242 (permalink) Old 04-30-2017, 07:38 AM
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The vbox apps don't take long to complete and could be setup to use less cores than your CPU has available so that multiple could be run.


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post #28 of 242 (permalink) Old 04-30-2017, 08:06 AM - Thread Starter
2+2=5
 
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Quote:
Originally Posted by AlphaC View Post

As I mentioned in the project nomination thread I don't think [email protected] is a good project for the Pentathlon. They haven't really put out tangible results.

When I crunched it before the estimated time durations are all completely off and I noticed that it has higher memory use. The new virtualbox units seem to be reporting half the cores you have enabled , which is an oddity in itself.

The current admin for the project is new to crunching as of July 2015 ; for a project supposedly backed by major players such as NSF and a worldclass university (University of Illinois at Urbana-Champaign) it is lacking in polish. Ironically the move to Paris as of 2016 has helped it.

Per their revised FAQ:
VT-x/AMD-v for the new app
Quote:
[email protected] runs multiple “apps.” The requirements list is for the default app (named camb_boinc2docker), but if your computer does not meet them, there is an older app available (named camb_legacy) which runs on just Windows and Linux but supports 32-bit processors and does not need Virtualbox or VT-x/AMD-v. At this point we only use the results from camb_legacy for testing the PICO algorithm and not for comparing with data since the app is fairly old. However, the results do serve a limited purpose and allow [email protected] users who do not meet the above requirements to continue to contribute, thus we continue to provide it. We encourage users who can run camb_boinc2docker to do so, however.

and some settings
Quote:
I enabled VT-x/AMD-v but jobs say “Scheduler wait: Please upgrade BOINC”

If you attempted to run a camb_boinc2docker job before enabling VT-x/AMD-v, it is possible your client is stuck in a state where it still thinks this feature is disabled. It will give you a message “Scheduler wait: Please upgrade BOINC to the latest version” and the log files will show “ERROR: Invalid configuration. VM type requires acceleration but the current configuration cannot support it.” To fix this:
  1. Remove the [email protected] project
  2. Shut down the BOINC client (from Advanced View choose the menu option Advanced->Shutdown Connected Client)
  3. Go to your BOINC folder and edit the file client_state.xml
  4. Remove the line which contains
  5. Restart your BOINC client and readd the project
Quote:
camb_boinc2docker is multi-threaded and will use up all available cores which BOINC allows it to. For example, if in the BOINC computing preferences you have set “Use at most 50% CPU time” and you have a 4-core processor, the job will use two of them.

If for whatever reason you wish to limit the number of cores used without changing the global BOINC CPU usage, you can do so by creating a file called "app_config.xml" in the [email protected] project folder and adding the following text, with the “2” under avg_ncpus replaced by however many CPUs you want to use (thanks to Crystal Pellet):
Code:
<app_config>
    <app>
        <name>camb_boinc2docker</name>
        <max_concurrent>1</max_concurrent>
    </app>
    <app_version>
        <app_name>camb_boinc2docker</app_name>
        <plan_class>vbox64_mt</plan_class>
        <avg_ncpus>2</avg_ncpus>
    </app_version>
</app_config>
Notes:

If after this BOINC gives an error reading your app_config.xml file, make sure you saved the file with a character encoding apropriate for your system (options to do so may vary by text editor).
You will need to restart your BOINC client for this take effect
This will only affect jobs started after you created the file (jobs started before will show “X CPUs” but still run using all of them, you can just abort these)
Reseting or removing/readding the project will delete this file so you will have to remake it

 

Although the new admin might be new to the BOINC platform, the amount of communication has greatly increased in the past year.  There has also been much more discussion about the science the project is doing and what is happening with the results.   The admin is also the developer of the boinc2docker app, which has the potential to allow for a wider variety of science to be done on the BOINC platform. 

 

As far as it being the Marathon project, I would agree that it might not be the best choice.  As long as they keep the camb_legacy apps flowing then all users should be able to get work, and the people that are running the planck project will be contributing to a better understanding of our universe. https://www.cosmologyathome.org/forum_thread.php?id=7468 https://www.cosmologyathome.org/planck_param_sims.php 



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post #29 of 242 (permalink) Old 04-30-2017, 08:59 AM
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post #30 of 242 (permalink) Old 04-30-2017, 09:07 AM - Thread Starter
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Looks good to me.  Not sure how BOINC will balance the load, but you could always suspend Cosmology on one of the instances until you run out of tasks on that instance.  Then you can resume crunching on the suspended tasks. 

 

I've never ran more tasks than threads, so I'm not sure if the OS and BOINC balance the load efficiently for maximum throughput.