GPU FLOPS: Theory vs Reality

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Profile Tom M
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Message 2026266 - Posted: 4 Jan 2020, 10:56:07 UTC - in response to Message 2026201.  
Last modified: 4 Jan 2020, 10:57:29 UTC

Well a few minutes ago I dropped the new Gtx 1660 Supers into my "box" and fired it up.

The only question I have left is to swap a gtx 1070 for a gtx 1660 or not?
I accidentally acquired a gtx 1660 when the listing said "Gtx 1660 Super" for an unheard of low price. No luck on the Super but it is a perfectly good Gtx 1660 that has been (previously) in the "box".

Opinions welcomed.

Tom


Give it a run, uses less energy than the 1070 and should be about the same or close to in RAC.

Is the multiprocs number important as well????

GTX 1660 TI = multiProcs 24
GTX 1660 Super = multiProcs 22
GTX 1660 = multiProcs 22
GTX 1070 = multiProcs 15

No harm in trying and finding out though?

Regards
Mark

PS. I am impressed with my GTX 1660 Super, intend to get another one, so I dont have to use the GTX 970.


I have googled "multiProcs" and for some reason Google hasn't extracted anything. Exactly what is "multiProcs" supposed to represent?
---pause-----google some more and.....-----------
I think I see. It appears to be related to the number of parallel processes that a GPU can run? If so, that would be a major descriptive parameter. A higher # implies being able to run more processes in parallel. Since this is the basis for the gpu app speed up over the cpu app processing speed....

Tom
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Message 2026267 - Posted: 4 Jan 2020, 11:20:04 UTC - in response to Message 2026266.  

Well a few minutes ago I dropped the new Gtx 1660 Supers into my "box" and fired it up.

The only question I have left is to swap a gtx 1070 for a gtx 1660 or not?
I accidentally acquired a gtx 1660 when the listing said "Gtx 1660 Super" for an unheard of low price. No luck on the Super but it is a perfectly good Gtx 1660 that has been (previously) in the "box".

Opinions welcomed.

Tom


Give it a run, uses less energy than the 1070 and should be about the same or close to in RAC.

Is the multiprocs number important as well????

GTX 1660 TI = multiProcs 24
GTX 1660 Super = multiProcs 22
GTX 1660 = multiProcs 22
GTX 1070 = multiProcs 15

No harm in trying and finding out though?

Regards
Mark

PS. I am impressed with my GTX 1660 Super, intend to get another one, so I dont have to use the GTX 970.


I have googled "multiProcs" and for some reason Google hasn't extracted anything. Exactly what is "multiProcs" supposed to represent?
---pause-----google some more and.....-----------
I think I see. It appears to be related to the number of parallel processes that a GPU can run? If so, that would be a major descriptive parameter. A higher # implies being able to run more processes in parallel. Since this is the basis for the gpu app speed up over the cpu app processing speed....

Tom


Well there you go then, learnt something new. I found the mulitProcs number in the stderr.txt for the workunits either awaiting validated or validated. I thought the higher the number the better the card went lol.

Thats why I picked a 1660 super over a 2nd hand 1070 lol.

Cheers
Mark
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Message 2026304 - Posted: 4 Jan 2020, 18:19:47 UTC - in response to Message 2026267.  

multiprocs refers to the number of SM's a card has. SM = Symmetric Multiprocessor = parallel Computing Unit = CU or what Nvidia calls them. More SM's or more CU's equal greater parallel math performance and the faster our tasks will run.
Seti@Home classic workunits:20,676 CPU time:74,226 hours

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Profile Tom M
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Message 2026309 - Posted: 4 Jan 2020, 18:37:48 UTC - in response to Message 2026304.  

multiprocs refers to the number of SM's a card has. SM = Symmetric Multiprocessor = parallel Computing Unit = CU or what Nvidia calls them. More SM's or more CU's equal greater parallel math performance and the faster our tasks will run.



Thank you for the clarification.
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Profile Tom M
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Message 2026310 - Posted: 4 Jan 2020, 18:39:13 UTC - in response to Message 2026267.  


I have googled "multiProcs" and for some reason Google hasn't extracted anything. Exactly what is "multiProcs" supposed to represent?
---pause-----google some more and.....-----------
I think I see. It appears to be related to the number of parallel processes that a GPU can run? If so, that would be a major descriptive parameter. A higher # implies being able to run more processes in parallel. Since this is the basis for the gpu app speed up over the cpu app processing speed....

Tom


Well there you go then, learnt something new. I found the mulitProcs number in the stderr.txt for the workunits either awaiting validated or validated. I thought the higher the number the better the card went lol.

Thats why I picked a 1660 super over a 2nd hand 1070 lol.

Cheers
Mark


And Thank you for bringing it up. Just made the change a few minutes ago.

Tom
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Message 2026355 - Posted: 5 Jan 2020, 0:21:39 UTC - in response to Message 2026310.  


I have googled "multiProcs" and for some reason Google hasn't extracted anything. Exactly what is "multiProcs" supposed to represent?
---pause-----google some more and.....-----------
I think I see. It appears to be related to the number of parallel processes that a GPU can run? If so, that would be a major descriptive parameter. A higher # implies being able to run more processes in parallel. Since this is the basis for the gpu app speed up over the cpu app processing speed....

Tom


Well there you go then, learnt something new. I found the mulitProcs number in the stderr.txt for the workunits either awaiting validated or validated. I thought the higher the number the better the card went lol.

Thats why I picked a 1660 super over a 2nd hand 1070 lol.

Cheers
Mark


And Thank you for bringing it up. Just made the change a few minutes ago.

Tom


:-)
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Message boards : Number crunching : GPU FLOPS: Theory vs Reality


 
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