processed dc and tc posts - Page 28

ChZ · 2020-09-05, 08:06

Requesting triple-check:

DoubleCheck=55035623,75,1

ChZ · 2020-09-05, 09:14

Requesting triple-check:

DoubleCheck=55709483,76,1

Marcelo Collett · 2020-09-05, 15:00

Requesting:

DoubleCheck=83155889,76,1

moebius · 2020-09-05, 15:34

Quote:

Originally Posted by ATH

I kept getting those mismatches even on the new V100 cards. I'm pretty sure now it is because gpuowl chooses a too low FFT size for those 54M exponents: 2.75M FFT.I'm now forcing it to use 3M FFT and have had no mismatch so far.

Why don't you just try this older version compiled by Fan Ming. for LL-DC, which can be run immediately with Colab-Ubuntu.
I've never had an incorrect result with it, even in LL-DC.

https://mersenneforum.org/showpost.p...&postcount=958

Uncwilly · 2020-09-05, 15:46

Quote:

Originally Posted by ChZ

DoubleCheck=55035623,75,1

This has been picked up by random user. Will monitor.

Quote:

Originally Posted by Marcelo Collett

DoubleCheck=83155889,76,1

When you take an exponent say "I have taken" or something like that. "Request" is used to ask for someone else to test a mismatch you had.

ATH · 2020-09-05, 15:48

Quote:

Originally Posted by moebius

Why don't you just try this older version compiled by Fan Ming. for LL-DC, which can be run immediately with Colab-Ubuntu.
I've never had an incorrect result with it, even in LL-DC.

https://mersenneforum.org/showpost.p...&postcount=958

Did you try 54M exponents? I have done 350+ DC in 50M-53M without any incorrect results with the version I'm using, I just think I reached near the end of the 2.75M FFT that gpuowl chooses.

Uncwilly · 2020-09-05, 15:55

Quote:

Originally Posted by moebius

PrimeNet Most Recent Cleared Not-Prime

Do you manually go through that looking for mis-matches?

moebius · 2020-09-05, 16:06

Yes, but only sometimes. Simply sort the exponents in ascending order and look for the residue

moebius · 2020-09-05, 16:11

Quote:

Originally Posted by ATH

Did you try 54M exponents?

Not yet, but 53M with 2.75M FFT

Marcelo Collett · 2020-09-05, 17:15

Quote:

Originally Posted by Uncwilly

When you take an exponent say "I have taken" or something like that. "Request" is used to ask for someone else to test a mismatch you had.

Alright. Thanks.

Prime95 · 2020-09-05, 18:12

Quote:

Originally Posted by Marcelo Collett

Alright. Thanks.

and.... Welcome to the forum!

2020-09-05, 15:00	#300
Marcelo Collett Sep 2020 5 Posts	Requesting: DoubleCheck=83155889,76,1 Last fiddled with by Uncwilly on 2020-09-05 at 15:43

2020-09-05, 16:06	#305
moebius Jul 2009 Germany 2×3×101 Posts	Yes, but only sometimes. Simply sort the exponents in ascending order and look for the residue Last fiddled with by moebius on 2020-09-05 at 16:07

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2020-09-05, 08:06	#298
ChZ Feb 2019 3×11 Posts	Requesting triple-check: DoubleCheck=55035623,75,1

2020-09-05, 09:14	#299
ChZ Feb 2019 3×11 Posts	Requesting triple-check: DoubleCheck=55709483,76,1