20221214, 04:01  #67  
Jul 2003
So Cal
2,621 Posts 
Quote:
https://gitlab.inria.fr/enge/cm/ https://gitlab.inria.fr/enge/cm//co...2b479edd45cd16 Last fiddled with by frmky on 20221214 at 04:02 

20221214, 05:57  #68 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
10093_{10} Posts 

20221214, 06:25  #69 
Sep 2002
Database er0rr
10706_{8} Posts 
What would be "good" too is saving the class number calculations, even if it is gigabytes, because that can take several hundred core hours every time one starts stage 1. It would not take as long to read them into memory again on resumption.
Last fiddled with by paulunderwood on 20221214 at 06:40 
20221214, 06:47  #70  
Jul 2003
So Cal
2,621 Posts 
Quote:
https://gitlab.inria.fr/enge/cm//co...56d9c57e5e8454 Edit: For the run I just completed, the class numbers file is 32GB, and the primorials (also optionally saved and loaded) are 11GB. Last fiddled with by frmky on 20221214 at 06:56 

20221214, 06:51  #71 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
10011101101101_{2} Posts 
Gigabytes are pennies these days. Our disks are necessarily over a petabyte (at a genome sequencing center).
Saving a temp image of a few gigabytes is certainly fine. Could draw a limit at, say, a terabyte or two. Surely, the good idea is to start the ecpp.ini file with some limit settings. Everyone could set for themselves. 
20221214, 10:41  #72  
Bamboozled!
"๐บ๐๐ท๐ท๐ญ"
May 2003
Down not across
5^{2}×7×67 Posts 
Quote:


20221214, 10:49  #73  
Bamboozled!
"๐บ๐๐ท๐ท๐ญ"
May 2003
Down not across
5^{2}·7·67 Posts 
Quote:
Here is a GNFS Cado run, only halfway completed and using only two machines sieving. Chicken feed, IOW. pcl@horus:~/nums/cadonfs/work$ du h 11M ./client/horus.work 11M ./client/horus+4.work 40M ./client/download 11M ./client/horus+5.work 9.7M ./client/horus+3.work 11M ./client/horus+2.work 11M ./client/horus+6.work 101M ./client 14G ./GW3_619.upload 4.7G ./GW3_619.dup1/0 4.7G ./GW3_619.dup1/1 9.3G ./GW3_619.dup1 26G . pcl@horus:~/nums/cadonfs/work$ df h . Filesystem Size Used Avail Use% Mounted on /dev/sdc1 917G 235G 636G 27% /home pcl@horus:~/nums/cadonfs/work$ Essentially all of that is temporary files in that the relations are superfluous after the square root computation has finished. 

20221215, 19:50  #74  
Sep 2002
Database er0rr
2×5^{2}×7×13 Posts 
Quote:
Code:
mkdir R_class export CM_ECPP_TMPDIR="R_class" Last fiddled with by paulunderwood on 20221215 at 19:57 

20221216, 01:45  #75 
Jun 2015
Vallejo, CA/.
3×5×7×11 Posts 
The seven largest primes in the category ECPP have been discovered in the last 10 months (MarDec 2022)

20230221, 18:46  #76 
Jul 2003
So Cal
2,621 Posts 
I am aware this will soon be exceeded, but 104824^5+5^104824, at 73,269 digits, is prime. Stage 1 took 32 days on 20 24core computers using GWNUM. Stage 2 took 27 days on 8 20core computers. A few steps with large prime factors of h took most of the time in stage 2. I will explore the effects of further limiting the largest prime factor of h. Thanks again to Andreas for creating CM and Paul for adding support for GWNUM.

20230221, 21:27  #77  
Bamboozled!
"๐บ๐๐ท๐ท๐ญ"
May 2003
Down not across
5^{2}×7×67 Posts 
Quote:
Any estimate when the first 100K digit prime will be proven? 

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