Greater Work Load than FULL

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Greater Work Load than FULL

Postby theleg4 » Mon Mar 23, 2020 2:35 pm

Is there a way to configure the workload - I'm set to full, but thats only using about 23% of my CPU/GPU and my temps are 51 degrees and 40 degrees respectively. Is there a way to increase the load put on my system?
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Re: Greater Work Load than FULL

Postby JimboPalmer » Mon Mar 23, 2020 3:05 pm

Yes.

First lets be sure your GPU is not really busy.
Download GPU-Z and go to the sensors tab. that will be an accurate measure of what is busy and why.
https://www.techpowerup.com/gpuz/

There is a bug in F@H that only uses one thread in your first CPU Work Unit ever, after that it uses what is specified.

In the taskbar to the lower right of the screen, you should see a F@H molecule icon, click it (you may need to click an Up Arrow to see it ^)
The second item in this menu is Advanced Control, click it
On this screen to the left is a Configure button, click it
Now you get a screen with a Slots tab, click it
On this white field should be a cpu item, click it and then click edit
By default F@H set the number of CPUs to -1 meaning let the software decide.
You can enter any number from 1 to the number of threads you CPU supports.

If you have GPUs, F@H reserves one CPU per GPU to feed it data across the PCIE bus.

F@H has difficulty with large primes and their multiples number of CPUs.
7 is always large, 5 is sometimes large, and 3 is never large. Try to choose a number that is a multiple of 2 and/or 3.
2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, etc. are good numbers of CPUs to choose.
5. 10. 15, 20 etc may work most of the time. Other numbers will bite you.
Having said that, the new 7.51 client tries to automatically shift down to a safe number.
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