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-   -   4e18-5e18 (https://www.mersenneforum.org/showthread.php?t=22187)

mart_r 2017-06-23 14:17

[QUOTE=robert44444uk;461830]I shall be updating posts #1 and #3 up to Sunday evening, but I will be travelling for 1 week and hence if you wish to reserve further ranges, maybe it will be better to reserve them before this coming Sunday.[/QUOTE]

Since 4680-4689 will be done by Monday (without any spectacular result yet), I'll take 4670-4679 too.

pinhodecarlos 2017-06-23 18:23

Can you please add some speed figures just to understand how quickly we are going (all threads used for the project)?

My case between 15e9 n/sec to 18e9 n/sec, but better consider the former as standard.

rudy235 2017-06-23 18:37

[B]Some statistics of the 1000 e15 ranges –Only groups of 100 Ranges with ≥ 5% completeness are reported– 594 ranges completed.[/B]

Exhaustive search [SIZE="4"][B]4000 -4280[/B][/SIZE]



[B]Range 4000 -4200 [/B]
Completeness 100%.

Highest gaps achieved a) 1368 Thomas11 Previously found by LLh in 2011
b) 1380 Thomas11 Previously found by Hertzog and Oliveira Silva in 2007

[B]Range 4200 -4300[/B]
Completeness 75%
Highest gaps achieved a) 1362 Antonio Previously found by Oliveira Silva in 2011
b) 1372 Antonio Previously found by LLh in 2014
c) 1440 Antonio Previously found by LLh in 2014

[B]Range 4300 -4400[/B]
Completeness 100%
Highest gap achieved 1386 danaj Previously found by Pardi and Oliveira Silva in 2012

[B]Range 4400 -4500[/B]
Completeness 79%
Highest gaps achieved a) 1362 Thomas (ties with Antonio R 4223 but Previously found by Oliveira Silva in 2011
b) Thomas 1352 Previously found by LLh in 2015

[B]Range 4500 -4600[/B]
Completeness 5%
Highest gaps achieved by 1236 danaj <1346
[B]Range 4600 -4700[/B]
Completeness 30%
Highest gap achieved 1430 Robert444UK Previously found by LLh in 2017 (just 2 weeks ago! See [URL="http://mersenneforum.org/showpost.php?p=460534&postcount=174"]here[/URL])

[B]Range 4700 -4800[/B]
Completeness 90%
Highest gap achieved 1374 by danaj previously found in 2011 by Pardi and Oliveira Silva

[B]Range 4800 -4900[/B]
To be populated

[B]Range 4900 -4999[/B]
Completeness 10%
Highest gaps achieved a) 1260 pinhodecarlos Not > 1344

Up to this point (with 59.4% or the ranges finished) 10 Gaps ≥ 1346 have been found and [U]all of them have been previously reported. [/U] 5 as C?C and 5 as CFC.

However, only 1 more C?C gap already found ([B]1346[/B] ) is remaining in the ranges 4646-4647
Once we complete the ranges 4700- 4800 -4900 -4999 there is a chance -i.e. educated guess– of finding [B]up to 4 new gaps,[/B] either CFC [B]gaps[/B] previously found, or C?C not yet discovered in this range.

danaj 2017-06-23 18:45

[QUOTE=pinhodecarlos;461885]Can you please add some speed figures just to understand how quickly we are going (all threads used for the project)?[/quote]

Currently I'm running at about 140e9 n/s. I will drop the 50 n/s machine in a month, but might add a Windows machine to make up for it a little.

Antonio 2017-06-23 18:58

[QUOTE=pinhodecarlos;461885]Can you please add some speed figures just to understand how quickly we are going (all threads used for the project)?

My case between 15e9 n/sec to 18e9 n/sec, but better consider the former as standard.[/QUOTE]

In my case, using an i5-3570k @ 4.44GHz, threads= 4, memory= 12GB and I'm getting around 27.3e9 n/sec.
So that's 6.148e9 n/sec/GHz, or 1.537e9 n/sec/GHz/thread.

Thomas11 2017-06-23 19:49

[QUOTE=pinhodecarlos;461885]Can you please add some speed figures just to understand how quickly we are going (all threads used for the project)?[/QUOTE]

I'm currently using 4 older non-AVX Xeons with 8 resp. 12 cores yielding between 20e9/sec and 28.8e9/sec. So my overall throughput is around 100e9/sec.

There is also an additional i7-3770 at home, but it's turned off until the heatwave is over...

robert44444uk 2017-06-23 20:21

My throughput is about 23 on a 4 core desktop and 6 occasionally on my work laptop. Average I think of 27

pinhodecarlos 2017-06-23 20:55

1 Attachment(s)
4479-4481 done.

henryzz 2017-06-23 21:01

4511-4512e15 97 kgaps, largest 1142 @ 4511792922075642737 and 4512712221084984239
4512-4513e15 121 kgaps, largest 1188 @ 4512065311767460151
4513-4514e15 110 kgaps, largest 1166 @ 4513647056235171623

rudy235 2017-06-23 22:14

[QUOTE=pinhodecarlos;461904]4479-4481 done.[/QUOTE]


Another gap ≥ 1346
1350 @ 4480897278955294741

Unfortunately it is not a [U]first known occurrence[/U] at it was originally 1350 CFC TOeSilva 2008 @ 1180351752204137089

STILL INTERESTING!

robert44444uk 2017-06-24 07:16

Latest stats: we are more than 60% of the way there. And we are probably getting to the point where we are finished repeating the work of others.


[CODE]

Searcher done resd

danaj 205 66
Thomas11 170 75
antonio 91 20
robert44444uk 84 14
pinhodecarlos 36 29
mart_r 13 20
ET_ 7 0
henryzz 4 6
ldesnogu 0 20

Total 610 250


[/CODE]


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