16 GPUs? For real?

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kittyman
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Message 1894651 - Posted: 11 Oct 2017, 17:13:58 UTC
Last modified: 11 Oct 2017, 17:14:27 UTC

Just noticed this.
Petri33's rig.
16 1080s?
Just curious if he really has that many attached to his rig or if that is an anomaly in reporting.

Meow?
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Message 1894652 - Posted: 11 Oct 2017, 17:17:40 UTC

His stderr reports 4 GPU`s.
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Message 1894653 - Posted: 11 Oct 2017, 17:18:12 UTC - in response to Message 1894651.  

LMAO You just noticed. It's been that way for months.

That's his rewrite of the BOINC app to think it's got 4 times the number of GPUs to get 4 times the cache size.
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Message 1894655 - Posted: 11 Oct 2017, 17:19:53 UTC - in response to Message 1894653.  

LMAO You just noticed. It's been that way for months.

That's his rewrite of the BOINC app to think it's got 4 times the number of GPUs to get 4 times the cache size.

Ahhh yes. I slightly remember that bit now.
Thanks for the reminder.
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Message 1894656 - Posted: 11 Oct 2017, 17:20:29 UTC - in response to Message 1894651.  

Just noticed this.
Petri33's rig.
16 1080s?
Just curious if he really has that many attached to his rig or if that is an anomaly in reporting.

Meow?

It's a hack Petri made to Boinc, in order to be able to get 16*100 tasks for his in reality only four 1080's.
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Message 1894658 - Posted: 11 Oct 2017, 17:22:59 UTC

Could just run 4 clients...
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Message 1894667 - Posted: 11 Oct 2017, 17:55:22 UTC - in response to Message 1894658.  

I think there is a problem with doing that on his systems. They have been trying to figure out how to run multiple clients from the command line in the "BOINC portable" for Windows hosts thread.
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Message 1894668 - Posted: 11 Oct 2017, 18:00:56 UTC

Yeh, Petri's home brew, Tuesday Special version of one of the GTX1080 config files, re-writes part of the GPU BIOS.
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Message 1894711 - Posted: 11 Oct 2017, 20:37:50 UTC - in response to Message 1894667.  

I think there is a problem with doing that on his systems. They have been trying to figure out how to run multiple clients from the command line in the "BOINC portable" for Windows hosts thread.

Running multiple instances of BOINC at once and controlling them is rather straight forward.
Currently I have a few hosts that run 100's of BOINC instances for goofygrid. As it only has NCI apps at this time.
Having BOINC report more GPUs than exist in the system is also pretty easy & doesn't require modifying any code. Just tweaking some configs.
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Message 1894719 - Posted: 11 Oct 2017, 20:55:49 UTC - in response to Message 1894668.  

Yeh, Petri's home brew, Tuesday Special...


The client reports them as being "Tu"'s for "Tuesday" rather than "Ti"... nice touch.
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Message 1894731 - Posted: 11 Oct 2017, 22:21:55 UTC - in response to Message 1894667.  
Last modified: 11 Oct 2017, 22:23:32 UTC

I think there is a problem with doing that on his systems. They have been trying to figure out how to run multiple clients from the command line in the "BOINC portable" for Windows hosts thread.


As mentioned, its not that hard. I even put a guide on my home forum on how to setup multiple clients Windows and Linux. BOINCTasks and WUProp setup included.

Yeh, Petri's home brew, Tuesday Special version of one of the GTX1080 config files, re-writes part of the GPU BIOS.



Eh, a Pascal BIOS edit? Or an edit of how BOINC reads the hardware is more like it.
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Message 1894765 - Posted: 12 Oct 2017, 4:08:12 UTC - in response to Message 1894731.  


Eh, a Pascal BIOS edit? Or an edit of how BOINC reads the hardware is more like it.


The later one is correct. BOINC reads hardware and replaces the 1080 Ti with 1080 Tu and multiplies the count by four.
When issuing tasks to GPUs it calculates bitwise (n & 3) to get GPU number 0-3. It runs one task at a time per GPU.

Tu stands for Tuesday for obvious reasons.

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Message 1894803 - Posted: 12 Oct 2017, 10:30:17 UTC - in response to Message 1894765.  


Eh, a Pascal BIOS edit? Or an edit of how BOINC reads the hardware is more like it.


The later one is correct. BOINC reads hardware and replaces the 1080 Ti with 1080 Tu and multiplies the count by four.
When issuing tasks to GPUs it calculates bitwise (n & 3) to get GPU number 0-3. It runs one task at a time per GPU.

Tu stands for Tuesday for obvious reasons.

Petri

Very neat :-)

And good fun! :-) :-)

(And very good such fun can be done :-P )


Happy fast crunchin',
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Message 1894854 - Posted: 12 Oct 2017, 15:03:57 UTC

Im surprised he only gets 180,398,646 credits. I saw 1080ti doing 60k with dual.
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Message 1894863 - Posted: 12 Oct 2017, 15:31:55 UTC

That 180 million credits is since March 2015. the RAC for that beast is well over 300,000, so each of the GTX1080 are returning over 75,000 per day.
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Message 1894894 - Posted: 12 Oct 2017, 18:07:29 UTC - in response to Message 1894863.  

That 180 million credits is since March 2015. the RAC for that beast is well over 300,000, so each of the GTX1080 are returning over 75,000 per day.

75000 per day is amazing.
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Message 1894900 - Posted: 12 Oct 2017, 18:42:50 UTC

Petri is using a highly optimised application, a generation on from the one I am using that gives about 65,000 per day (per GTX1080), which in turn is a massive leap ahead from the SoG application that is the best stock application available under Windows.
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Stephen "Heretic"
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Message 1895010 - Posted: 13 Oct 2017, 11:47:25 UTC - in response to Message 1894656.  

Just noticed this.
Petri33's rig.
16 1080s?
Just curious if he really has that many attached to his rig or if that is an anomaly in reporting.

Meow?

It's a hack Petri made to Boinc, in order to be able to get 16*100 tasks for his in reality only four 1080's.


. . To be specific I believe it is 3 x 1080 and 1 x 1080ti :)

Stephen

:)
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Stephen "Heretic"
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Message 1895011 - Posted: 13 Oct 2017, 11:50:48 UTC - in response to Message 1894711.  

I think there is a problem with doing that on his systems. They have been trying to figure out how to run multiple clients from the command line in the "BOINC portable" for Windows hosts thread.

Running multiple instances of BOINC at once and controlling them is rather straight forward.
Currently I have a few hosts that run 100's of BOINC instances for goofygrid. As it only has NCI apps at this time.
Having BOINC report more GPUs than exist in the system is also pretty easy & doesn't require modifying any code. Just tweaking some configs.


. . I would like to know more .... :)

Stephen

:)
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Message 1895043 - Posted: 13 Oct 2017, 15:24:09 UTC - in response to Message 1895011.  

I think there is a problem with doing that on his systems. They have been trying to figure out how to run multiple clients from the command line in the "BOINC portable" for Windows hosts thread.

Running multiple instances of BOINC at once and controlling them is rather straight forward.
Currently I have a few hosts that run 100's of BOINC instances for goofygrid. As it only has NCI apps at this time.
Having BOINC report more GPUs than exist in the system is also pretty easy & doesn't require modifying any code. Just tweaking some configs.


. . I would like to know more .... :)

Stephen

:)

+1
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Message boards : Number crunching : 16 GPUs? For real?


 
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