the classic 79,3 limit

heich1 · 2018-06-26, 21:32

What is the classic 79.3 limit in www.mersenne.org/report_milestones?

Uncwilly · 2018-06-26, 22:46

For many years, 79.3million was the limit that Prime95 could test.
The milestone and status page was this with the milestones below. As each level associate with an FFT size was completed (DC'ed), it was collapsed into the top row.

HTH

Chuck · 2018-06-27, 00:23

Why does the GIMPS milestones page indicate

Quote:

Countdown to verifying all tests below the classic 79.3 million limit: 19

but when you click on the number only one active test is displayed?

Never mind, I just read the posting in the newer milestone thread.

kriesel · 2018-06-28, 05:25

Quote:

Originally Posted by Uncwilly

For many years, 79.3million was the limit that Prime95 could test.
The milestone and status page was this with the milestones below. As each level associate with an FFT size was completed (DC'ed), it was collapsed into the top row.

HTH

New features in Version 24.12 of prime95.exe ~2009
2) As a side "benefit" even larger FFT sizes are now supported. This allows
testing of exponents up to 596 million. Not recommended.

New features in Version 19.0 of prime95.exe ~1999
2) New FFT lengths. The program can now test exponents as large as
79.3 million. Also, smaller FFT lengths are supported for use in
ECM and P-1 factoring.

New features in Version 16.1 of prime95.exe ~1999
1) Prime95 can now test exponents up to 20.5 million.

New features in Version 12 of prime95.exe ~1997
3) The program can now test exponents as high as 2,630,000!

I remember at the times, thinking it would be a long time before it would need increasing from 20M or 79.3M; then the 596M capable release came along and we're set for life.

lycorn · 2018-06-28, 22:10

I just took a look at the page: only 13 "Status unknown", corresponding to an effort of 470 P90 CPU-Years. I remember, some 15 years ago or so, the latter figure being well over 27 million!... We came a long way, no doubt.

lycorn · 2018-08-14, 23:28

No more unknowns!...
https://www.mersenne.org/report_classic/

"Only" 596,735 DCs to go, as of now.

rudy235 · 2018-08-15, 04:41

Quote:

Originally Posted by lycorn

No more unknowns!...
https://www.mersenne.org/report_classic/

"Only" 596,735 DCs to go, as of now.

I wonder when can we expect this amount will go down to <10,000 ?

2018-06-26, 21:32	#1
heich1 Aug 2009 19 Posts	the classic 79,3 limit What is the classic 79.3 limit in www.mersenne.org/report_milestones?

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2018-06-26, 22:46	#2
Uncwilly 6809 > 6502 """"""""""""""""""" Aug 2003 101×103 Posts 2B0C₁₆ Posts	For many years, 79.3million was the limit that Prime95 could test. The milestone and status page was this with the milestones below. As each level associate with an FFT size was completed (DC'ed), it was collapsed into the top row. HTH

2018-06-28, 22:10	#5
lycorn "GIMFS" Sep 2002 Oeiras, Portugal 1582₁₀ Posts	I just took a look at the page: only 13 "Status unknown", corresponding to an effort of 470 P90 CPU-Years. I remember, some 15 years ago or so, the latter figure being well over 27 million!... We came a long way, no doubt.

2018-08-14, 23:28	#6
lycorn "GIMFS" Sep 2002 Oeiras, Portugal 2·7·113 Posts	No more unknowns!... https://www.mersenne.org/report_classic/ "Only" 596,735 DCs to go, as of now.