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Message boards : Problems and Help : GPU CPU usage on multi-core system

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Dr.KlahnProject donor
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Message 121105 - Posted: 15 Oct 2018 | 22:08:36 UTC

On this quad-core system, BOINC reports for the GPU thread:

(0.149 CPUs + 1 AMD/ATI GPU)

I find that message a bit confusing. Does that mean ...

a) The GPU thread is using (0.149 CPUs * 4) = 0.596 single CPU

b) The GPU thread is using 0.149 single CPU

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Message 121106 - Posted: 15 Oct 2018 | 22:21:00 UTC - in response to Message 121105.

The answer is neither, but it's closer to b. The number is a BOINC estimation of how much CPU power (1.000 would be one full core at 100%) is needed to run the GPU task. The reality is that it's likely using much less than that, the amount depending on the GPU and what subproject you're running.
____________
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The "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 2 primes in the 2021 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (3,117,969)Cullen LLR Ruby: Earned 2,000,000 credits (3,624,591)ESP LLR Turquoise: Earned 5,000,000 credits (5,021,269)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Sapphire: Earned 20,000,000 credits (20,751,038)PSP LLR Turquoise: Earned 5,000,000 credits (5,197,957)SoB LLR Sapphire: Earned 20,000,000 credits (36,067,618)SR5 LLR Jade: Earned 10,000,000 credits (10,007,110)SGS LLR Ruby: Earned 2,000,000 credits (3,718,407)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Ruby: Earned 2,000,000 credits (2,963,361)321 Sieve (suspended) Jade: Earned 10,000,000 credits (10,061,196)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (22,885,121)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Jade: Earned 10,000,000 credits (10,118,303)WW Sapphire: Earned 20,000,000 credits (21,896,000)GFN Emerald: Earned 50,000,000 credits (77,916,132)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 121107 - Posted: 15 Oct 2018 | 22:29:40 UTC

Ignore the number. In modern parlance, it's "fake news". It has no relationship to reality, and is not a measurement of any sort.
____________
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Dr.KlahnProject donor
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Joined: 16 Sep 07
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Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (373,733)PPS LLR Amethyst: Earned 1,000,000 credits (1,016,419)PSP LLR Bronze: Earned 10,000 credits (79,701)SGS LLR Amethyst: Earned 1,000,000 credits (1,278,111)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,124,229)PPS Sieve Turquoise: Earned 5,000,000 credits (5,693,619)GFN Turquoise: Earned 5,000,000 credits (7,585,545)
Message 121112 - Posted: 16 Oct 2018 | 6:35:40 UTC
Last modified: 16 Oct 2018 | 6:36:20 UTC

Thanks. I had been wondering. The Task Manager seems to think that the genefer process associated with the GPU is using 20% of the quad core processor, which is closer to 80% of one CPU.

Profile Michael GoetzProject donor
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The "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 2 primes in the 2021 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (3,117,969)Cullen LLR Ruby: Earned 2,000,000 credits (3,624,591)ESP LLR Turquoise: Earned 5,000,000 credits (5,021,269)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Sapphire: Earned 20,000,000 credits (20,751,038)PSP LLR Turquoise: Earned 5,000,000 credits (5,197,957)SoB LLR Sapphire: Earned 20,000,000 credits (36,067,618)SR5 LLR Jade: Earned 10,000,000 credits (10,007,110)SGS LLR Ruby: Earned 2,000,000 credits (3,718,407)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Ruby: Earned 2,000,000 credits (2,963,361)321 Sieve (suspended) Jade: Earned 10,000,000 credits (10,061,196)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (22,885,121)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Jade: Earned 10,000,000 credits (10,118,303)WW Sapphire: Earned 20,000,000 credits (21,896,000)GFN Emerald: Earned 50,000,000 credits (77,916,132)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 121113 - Posted: 16 Oct 2018 | 9:31:18 UTC - in response to Message 121112.

Thanks. I had been wondering. The Task Manager seems to think that the genefer process associated with the GPU is using 20% of the quad core processor, which is closer to 80% of one CPU.


Are you tasking about the BOINC Manager or the Windows Task Manager? The Windows Task Manager should be giving you accurate information. It's the BOINC manager, from which you quoted in your first message, that is meaningless.
____________
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Message boards : Problems and Help : GPU CPU usage on multi-core system

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