Installing Lubuntu 18.10

davidbam
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#11 Re: Installing Lubuntu 18.10

Post by davidbam »

I have graphed 'graphics utilisation' (seems a bit recursive :D)

It certainly isn't jammed up there at 99-100% so perhaps 2 WU are what is needed
I think this is fool-proof but could you just try it for me please? • There are 10 types of people in the world; those who understand binary, and those who don’t
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Alez
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#12 Re: Installing Lubuntu 18.10

Post by Alez »

davidBAM wrote: Sat Nov 10, 2018 3:16 pm I don't actually know how to run more than one WU on the GPU :oops: If I've been told before, I've forgotten, sorry.
How you do it is project dependent via an app_config.xml the same as on collatz. The GTX 960 is probably better running single units.
To run two you need to add this to the primegrid project directory and then reread config files. Off the top of my head var/lib/boinc/projects/

I prefer to use Gedit

Code: Select all

sudo apt-get install gedit
to edit config files etc.
to run it from terminal

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gksudo gedit
the app_config

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<app_config>
<app>
<name>pps_sr2sieve</name>
<gpu_versions>
<gpu_usage>0.5</gpu_usage>
<cpu_usage>0.5</cpu_usage>
</gpu_versions>
</app>
</app_config>
This will run two apps per card using 0.5 cpu core between them. Change cpu_usage to 1 to run 0.5 core per app. nVidia shouldn't need a core per app but AMD does.
Can you see this this forum ?
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davidbam
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#13 Re: Installing Lubuntu 18.10

Post by davidbam »

Well I'll try it on the GTX960 for fun & check the effect on run times - presumably any one task will slow but overall credits will be higher. It sure has changed the shape of the GPU utilisation graph (black line)
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I think this is fool-proof but could you just try it for me please? • There are 10 types of people in the world; those who understand binary, and those who don’t
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davidbam
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#14 Re: Installing Lubuntu 18.10

Post by davidbam »

In for a penny ... ...
This graph is from Linux Mint with a GTX1080 graphing the GPU utilisation. The step change in the graph (the 1/3rd nearest the right) is using 4 WU on the GPU. The 2/3rds on the left is 3 WU simultaneously. Looks like it could handle 5 :D :D

Am keeping an eye on temperatures and overall run times

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I think this is fool-proof but could you just try it for me please? • There are 10 types of people in the world; those who understand binary, and those who don’t
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Alez
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#15 Re: Installing Lubuntu 18.10

Post by Alez »

Remember to up the amount of cpu. Whatever you set as cpu is what it uses between all apps on GPU. Go to low and it won't feed the GPU properly.
Also, don't get carried away with loading. The real trick is the times. If you can do one unit in 5 mins then you must be able to do 2 in 10 or less. For 3 , 15 mins or less etc or you are now being inefficient by loading the GPU too much. Also watch the temps on the card as obviously the more you push it the more the temp can rise. It's a balancing act.
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davidbam
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#16 Re: Installing Lubuntu 18.10

Post by davidbam »

Thanks. Yes, that's what I meant by keeping an eye on temperatures and overall run times
I think this is fool-proof but could you just try it for me please? • There are 10 types of people in the world; those who understand binary, and those who don’t
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#17 Re: Installing Lubuntu 18.10

Post by Bryan »

Your graph is very surprising. My 1080Ti runs about 60% load with 1 WU and 100% loading with 2. As Alez says, be sure you have enough CPU reserved to service the GPU. Try suspending the CPU WU and see what happens to your graph. If you don't have enough CPU reserved -or- you are trying to run too many WU it will cause you to lose credits.
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#18 Re: Installing Lubuntu 18.10

Post by davidbam »

I am going to pull the card and try it in another machine. I noticed that even a single WU had been taking 3 times longer than it did originally ... Yes, even before I had changed anything.
I think this is fool-proof but could you just try it for me please? • There are 10 types of people in the world; those who understand binary, and those who don’t
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Alez
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#19 Re: Installing Lubuntu 18.10

Post by Alez »

davidBAM wrote: Sat Nov 10, 2018 8:11 pm I am going to pull the card and try it in another machine. I noticed that even a single WU had been taking 3 times longer than it did originally ... Yes, even before I had changed anything.
Check the temperature on the card. It might be down clocking to protect itself. Either that or it is not getting serviced fast enough through either CPU usage or bandwidth. PPS-Sieve tasks tend to be very similar, so each task should take the same time to run within a few seconds. There are no longer or shorter tasks like some apps.
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