20170727, 21:25  #1 
If I May
"Chris Halsall"
Sep 2002
Barbados
3^{6}×13 Posts 
What do we do next?
So, after several years of work we have finally pulled ahead of the LL'ers and P1'ers.
Extreme coolness! My question is: what do people want to do? Do we continue to go depth first (read: taking 85M etc to 76 bits), or do we work the higher ranges breadthfirst (each range from 71 bits to 72 bits, and then 72 to 73, etc. I ask this for two reasons: 1. TF'ing is very far ahead of the LL'ers and the P1'ers. 2. There was a recent incident where an independent TF'er was working in (and interfered with) a range we were working. I would appreciate feedback on what people would like to do. 
20170727, 21:44  #2 
"/X\(‘‘)/X\"
Jan 2013
5561_{8} Posts 
I think depthfirst still makes sense. If we get a surge in LL or P1, it will be nice to have that buffer. It's also nice to "finish" work (until the balance shifts).
Those who want to go shallow, like I do on my slow cards, can set a lower bit commitment. 
20170727, 23:09  #3  
1976 Toyota Corona years forever!
"Wayne"
Nov 2006
Saskatchewan, Canada
2^{3}×569 Posts 
Quote:
YAY!!!! Would there be an option 3 to get a little more aggressive on the bit levels? That is, go a bit deeper a little ahead of the chart recommendations? Over these several years the project went from barely and sometimes not keeping ahead of the leading edge to having a healthy buffer. It can only get bigger as exponents increase and LL times accordingly. 

20170727, 23:13  #4 
Sep 2003
3^{2}×7×41 Posts 
When TF takes twice as long every time you increase the depth by one bit, at some point it hits diminishing returns. I don't do even token TF anymore because GPU pricing on the cloud is so out of whack, so I don't know if you guys have reached that point yet, but thinking outofthebox, there's a big fat 9–10 year backlog for DC LL tests, just sayin'.

20170727, 23:45  #5  
If I May
"Chris Halsall"
Sep 2002
Barbados
3^{6}·13 Posts 
Quote:
This is the "Great Internet Mersenne PRIME Search". Our goal is to find primes. Finding factors ahead is useful, but it's a also a bit like masturbation (I hope that is taken the way it was intended).... 

20170727, 23:52  #6  
If I May
"Chris Halsall"
Sep 2002
Barbados
3^{6}×13 Posts 
Quote:
The question is would those who actually do the work want to? Are you suggesting taking 85M to 77 bits? As an aside guys, thanks for all the work. I remember being attacked by a certain person for daring to try to go to 72, and now we're debating if we should go to 77. How times change! 

20170728, 00:00  #7 
Jul 2003
wear a mask
3·11·47 Posts 

20170728, 00:13  #8 
If I May
"Chris Halsall"
Sep 2002
Barbados
9477_{10} Posts 
Please see this post.
I barely have the time to say things once, please do try to keep up. It's a little bit like trying to teach a snail physics. (Just to share, I actually said that to my girlfriend recently. She was not amused....) 
20170728, 17:08  #9  
1976 Toyota Corona years forever!
"Wayne"
Nov 2006
Saskatchewan, Canada
2^{3}·569 Posts 
Quote:
Are you maybe hinting that the GPU'ers consider running something like CUDALucas and work on the DC LL backlog? Not a bad idea. 

20170728, 18:12  #10 
"/X\(‘‘)/X\"
Jan 2013
29×101 Posts 

20170728, 18:23  #11 
Basketry That Evening!
"Bunslow the Bold"
Jun 2011
40<A<43 89<O<88
3×29×83 Posts 
