Is there any benefit to installing lunatics if 1 WU per GPU is ran?

Is there any benefit to installing and running lunatics if a person decides not to run two WU’s per GPU?

I ask because right now I have some what of a wimpy PSU unit(800 watts continuous and 1000 watts peak). When I ran the two GTX 580’s with two WU’s, per card they were drawing amps in the high 40’s and mid to low 50’s. With one WU per card, the amperage dropped an easy 10 to 14 amps per card. At this point in time, I really do not wish to over stress the PSU.

Thanks for the replies. The version I installed last night is "Win64 Lunatics' Unified Installer v0.37". The install worked perfectly thanks to some past posts explaining how to edit the app_info file.

Here is what I have noticed so far.

The GPU's used to say 0.81 CPU + 1.00 NVidia gpu while doing work. That has changed to 0.04 CPU + 1.00 NVidia gpu.

When both gpu's were running, I was only crunching with 11 cores. Now after the install it is crunching with all 12.

The gpu usage has dropped as well. They were running around 50 to 60 percent on average. Now they are staying in the middle 40's. They are not down clocking. I am watching their speed and memory usage while using a program called MSI afterburner. I will have to come up with a way to check their current speed with their past performance before lunatics was installed.

Lastly, I did run into a few errors in a couple of WU's. They are my fault though. I was playing with the app file and changing the number(.1 .2 .8) around.

I finally got some gpu WU's so I figured I would give it a shot again. Mostly to see how fast the gpu's could bust out the work. I set it up to do 2 WU's per gpu(.5 setting in the app file). I had 6 to edit that way in the app file.

I then got a number of "Error while computing" messages. I do not know if I did some thing wrong or if this is the norm. I did do some searching for other members and noticed that one member I found had a ton of the same errors.

Sounds like you might be running right on the edge for that PSU you have. Going to two WUs per might just be pushing it over.
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PROUD MEMBER OF Team Starfire World BOINC

Perryjay, while it is possible that the PSU is having some problems, I have seen no indication of it. When I built the computer a few months back I did some rather extensive tests of the PSU and video cards. Besides a variation of ohms law, I ran a program called OCCTPT. This free download program will seriously tax the system. So much so that there is even a warning about burning up the PSU in some of the tests.

Miep, another good suggestion. I did have the computer on for quite some time when I ran the tests from above. I was also tinkering with a game of starcraft as well. I have not received any new WU's since yesterday for the video cards so I have not been able to test your theory. As soon as I get some, I will run the test and report back here. As for the driver, I have heard about the issues with it downclocking the GPU's. I have not seen this while doing WU's for SETI. I have seen it while in the game of starcraft with one of the GPU's. It dropped from 825mhz to 405mhz. The second card did not drop at all. The downclocking was also not noticed during gameplay.

Thanks Miep. That is exactly what I do, I snooze all of the crunching. I still have not received any WU's to run further tests. I have found one cruncher that is a poster here. That cruncher has a similar set up to mine except that he is using two GTX 570's. This cruncher has over 600 errors while running lunatics. I may send him a PM.

or just uncheck the "use GPU while computer is in use" that solves a lot of problems like having to leave a game to re-snooze the gpu
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Proud member of TSWB.

End terrorism by building a school

What is "in use" though? The computer's "in use" whenever it's on :D. Or does it snooze the GPU @ every keystroke or after a period of no input activity? I have an auto-snooze batch-file for my game.

no "in use" means the keyboard or mouse is being actively used at least every 3 minutes
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Proud member of TSWB.

End terrorism by building a school

Strange that because when screen-power-down is set in Windows power settings when using a steering wheel, it takes it as no input occurring, therefore the GPU would assume that the machine is not being used & would continue - despite there being a game up.

a steering wheel isnt a mouse or keyboard is it.
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Proud member of TSWB.

End terrorism by building a school

No but it should act as such, keeping the GPU units from resuming.

I am not a big gamer anyways. To be more accurate, I do not use the snooze feature, but rather the suspend option when boinc starts to get in the way.