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Message boards : Problems and Help : app_config.xml

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V0d01ey
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Message 128328 - Posted: 26 Mar 2019 | 1:35:07 UTC

It is not so easy to find information on forums about possible settings that can be set with app_config.xml.
How about opening a specific thread about it. (or have I missed some?)

For example I have following question.
Do primegrid GPU applications support settings like <gpu_usage>.4</gpu_usage> or <ngpus>.4</ngpus>? Which ones do?
I've tried to use them and had no success.

Could you please collect description of all possible settings for all applications in one thread or at least one for each application in relevant subfofums.

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Message 128331 - Posted: 26 Mar 2019 | 2:54:08 UTC - in response to Message 128328.

It is not so easy to find information on forums about possible settings that can be set with app_config.xml.
How about opening a specific thread about it. (or have I missed some?)

For example I have following question.
Do primegrid GPU applications support settings like <gpu_usage>.4</gpu_usage> or <ngpus>.4</ngpus>? Which ones do?
I've tried to use them and had no success.

Could you please collect description of all possible settings for all applications in one thread or at least one for each application in relevant subfofums.


Start here: http://www.primegrid.com/forum_thread.php?id=8429

Profile Michael GoetzProject donor
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Message 128333 - Posted: 26 Mar 2019 | 3:00:44 UTC - in response to Message 128328.

Do primegrid GPU applications support settings like <gpu_usage>.4</gpu_usage> or <ngpus>.4</ngpus>? Which ones do?
I've tried to use them and had no success.


Those settings do not tell the apps what to do. The apps don't "support" those settings. It doesn't work like that.

These settings tell the BOINC client what you expect your app to do.

For example, if you use <ngpus> 0.5</ngpus>, the BOINC client is instructed that each task is expected to fully utilize only half of the GPU, and it's therefore possible to run two tasks simultaneously on the GPU. The setting affects how BOINC schedules tasks to run on the GPU.

In practice, people use this to force BOINC to run more than one task simultaneously on a GPU.

Note that the app itself never knows about this setting. It's a directive for the BOINC scheduler on your computer, not the app.
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V0d01ey
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Message 128334 - Posted: 26 Mar 2019 | 4:10:55 UTC - in response to Message 128333.
Last modified: 26 Mar 2019 | 4:11:35 UTC

Does it mean that BOINC manager do not translate those settings (except <cmdline>) to app?
It could send them by translating them to additional cmdline args...

So the only way to implement such additional functionality is to make specific to app own cmdline args.

PS. In my case I've wanted to give more work to GPU that is not fully utilized by some other application.

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 Primes321 LLR Ruby: Earned 2,000,000 credits (2,063,182)Cullen LLR Ruby: Earned 2,000,000 credits (2,005,249)ESP LLR Ruby: Earned 2,000,000 credits (2,001,789)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Ruby: Earned 2,000,000 credits (2,770,356)PSP LLR Ruby: Earned 2,000,000 credits (2,632,269)SoB LLR Sapphire: Earned 20,000,000 credits (34,158,496)SR5 LLR Turquoise: Earned 5,000,000 credits (8,182,777)SGS LLR Ruby: Earned 2,000,000 credits (2,011,264)TRP LLR Ruby: Earned 2,000,000 credits (2,737,347)Woodall LLR Ruby: Earned 2,000,000 credits (2,195,123)321 Sieve Turquoise: Earned 5,000,000 credits (5,044,282)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (20,110,788)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 Turquoise: Earned 5,000,000 credits (7,090,096)GFN Emerald: Earned 50,000,000 credits (64,593,307)PSA Jade: Earned 10,000,000 credits (10,135,447)
Message 128339 - Posted: 26 Mar 2019 | 10:32:13 UTC - in response to Message 128334.

Does it mean that BOINC manager do not translate those settings (except <cmdline>) to app?


Correct. The purpose of those settings is to inform the BOINC client about the characteristics of the app.

It could send them by translating them to additional cmdline args...


That's not the purpose of those settings, because...

So the only way to implement such additional functionality is to make specific to app own cmdline args.


...This is what you use to send commands to the app.

PS. In my case I've wanted to give more work to GPU that is not fully utilized by some other application.


To utilize the rest of the GPU, all you need to do is run a second task on it. You do not need to tell the apps anything special. If you start up two of them, then two will run and share the GPU. What you need to do is tell BOINC to start two tasks instead of one.

This is what <ngpus>0.5</ngpus> does. It causes BOINC to start two tasks instead of one task. It's BOINC that needs to do something special, not the app.
____________
Please do not PM me with support questions. Ask on the forums instead. Thank you!

My lucky number is 75898524288+1

V0d01ey
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Joined: 23 Dec 17
Posts: 3
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Credit: 17,173,274
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PSP LLR Silver: Earned 100,000 credits (298,320)SoB LLR Ruby: Earned 2,000,000 credits (3,048,916)SR5 LLR Bronze: Earned 10,000 credits (12,657)TRP LLR Bronze: Earned 10,000 credits (11,415)Woodall LLR Silver: Earned 100,000 credits (218,278)PPS Sieve Bronze: Earned 10,000 credits (70,791)GFN Jade: Earned 10,000,000 credits (13,504,503)
Message 128350 - Posted: 26 Mar 2019 | 16:12:06 UTC - in response to Message 128339.

Sorry for misleading.
Another app is not BOINC. And Genefer apps uses 100% of the GPU causing external app to slow down dramatically.

Profile Michael GoetzProject donor
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Joined: 21 Jan 10
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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 Primes321 LLR Ruby: Earned 2,000,000 credits (2,063,182)Cullen LLR Ruby: Earned 2,000,000 credits (2,005,249)ESP LLR Ruby: Earned 2,000,000 credits (2,001,789)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Ruby: Earned 2,000,000 credits (2,770,356)PSP LLR Ruby: Earned 2,000,000 credits (2,632,269)SoB LLR Sapphire: Earned 20,000,000 credits (34,158,496)SR5 LLR Turquoise: Earned 5,000,000 credits (8,182,777)SGS LLR Ruby: Earned 2,000,000 credits (2,011,264)TRP LLR Ruby: Earned 2,000,000 credits (2,737,347)Woodall LLR Ruby: Earned 2,000,000 credits (2,195,123)321 Sieve Turquoise: Earned 5,000,000 credits (5,044,282)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (20,110,788)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 Turquoise: Earned 5,000,000 credits (7,090,096)GFN Emerald: Earned 50,000,000 credits (64,593,307)PSA Jade: Earned 10,000,000 credits (10,135,447)
Message 128351 - Posted: 26 Mar 2019 | 16:26:15 UTC - in response to Message 128350.

Sorry for misleading.
Another app is not BOINC. And Genefer apps uses 100% of the GPU causing external app to slow down dramatically.


I understand.

Unfortunately, there's no way at all to do what you want.

You can't tell a GPU program to only use 50% of the GPU. They don't work that way. Not just at PrimeGrid. All GPU apps, including programs that are not run by BOINC.

The best you can do is go into your BOINC preferences window in the BOINC manager and set up your external app as an exclusive app so that BOINC doesn't use the GPU at all when the external app is running.

____________
Please do not PM me with support questions. Ask on the forums instead. Thank you!

My lucky number is 75898524288+1

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Message boards : Problems and Help : app_config.xml

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