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Re: Graphics as screensaver?

The only purpose of using "Local System" is so that you can set the desktop interaction option and view the graphics, whether using the "Show Graphics" button or using the screensaver.

I hope that makes sense.
[Jan 2, 2007 4:22:27 PM]   Link   Report threatening or abusive post: please login first  Go to top 
schepers
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Re: Graphics as screensaver?

The only purpose of using "Local System" is so that you can set the desktop interaction option and view the graphics, whether using the "Show Graphics" button or using the screensaver.


My bad, I should have noticed that the "allow service..." is only available when running as a Local Service. Duh!

However, with your post, along with some configuration of mine, I now have the best of all worlds. I am now able to:

1. See graphics from the manager when running BOINC as a service
2. Have the logged-in user screen saver show graphics
3. Have the "default user" (login window) use the BOINC screen saver with graphics as well

The third point was the hard one to obtain, which I could not get until your post about "allow service...". The reason I want this is the machines I am running BOINC on sit at the login window for much of the time. When I ran UD, I was able to view the graphics from the login window, allowing me to monitor the work unit progress. I can now do this with BOINC as well. What I have also done is configure the BOINC saver to "Go to blank screen" after 1 minute. This way I can view the graphics for a limited time (1 minute) so I don't sacrifice much cruching time to graphics.

You must apply the BOINC screen saver registry keys to "default user" in order to make these final configs apply at the login window.

I am documenting all of this, so I can put it up on my WCG site (you know the one).
[Jan 2, 2007 4:41:48 PM]   Link   Report threatening or abusive post: please login first  Go to top 
Sekerob
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Re: Graphics as screensaver?

Read an article over at MS where the discussion on energy conservation was addressed. If i find it again, i'll post the link, but the essence was that the Graphics Processor Unit card could cause up to 114 watts per hour of extra consumption....this on top of particular moving screen saver graphics consuming CPU time. Seems some like the 'sheep' one, also caused continuous disk I/O. Just that we do not forget it goes at the expense of crunching!

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[Jan 2, 2007 5:06:19 PM]   Link   Report threatening or abusive post: please login first  Go to top 
schepers
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Re: Graphics as screensaver?

...the Graphics Processor Unit card could cause up to 114 watts per hour of extra consumption....this on top of particular moving screen saver graphics consuming CPU time.

...Just that we do not forget it goes at the expense of crunching!


Seems that you forgot one of my config options, so I would avoid showing graphics for too long. It's an important consideration for me, and I will definitely include this power-related detail in my write-up.

What I have also done is configure the BOINC saver to "Go to blank screen" after 1 minute. This way I can view the graphics for a limited time (1 minute) so I don't sacrifice much cruching time to graphics.


I also have these machines set to power off the monitor after 45 minutes, so I'm covered. However, my machines don't have power-hungry video cards, mostly on-board Intel chipsets, so I'm OK. I just didn't want to sacrifice too much CPU to showing graphics. BOINC has a good number of options, and in the right combination and with the right tricks you can do a lot.

I've begun testing this config on two systems. Hopefully it works well so that I can put it in my labs as a permanent config.
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[Edit 2 times, last edit by schepers at Jan 2, 2007 5:50:17 PM]
[Jan 2, 2007 5:48:56 PM]   Link   Report threatening or abusive post: please login first  Go to top 
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