20191120, 02:12  #266  
Random Account
Aug 2009
U.S.A.
1619_{10} Posts 
Quote:
Recently, I have been looking at the bottom of this page. It seems the effort has dropped off, (GHz days per day). This could also be an illusion as the time required to factor to higher bit levels would increase. 

20191120, 02:41  #267 
"James Heinrich"
May 2004
exNorthern Ontario
5^{5} Posts 
The exact opposite in fact. Three months ago the daily average was about 12500GHd, now it's just over double that (25800).
More people are TF'ing to higher bit depths (70 or 71 instead of min+1) so the throughput of cleared exponents might be lower, but the expended effort is definitely up over time. Last fiddled with by James Heinrich on 20191120 at 02:42 
20191120, 03:37  #268 
Romulan Interpreter
Jun 2011
Thailand
21247_{8} Posts 
One thing we found a bit odd about those tables (from the beginning, not just now) is that there are a lot of assignments in ranges where either all the work was already done (and they are green) and either in the ranges that have no exponents available. May you explain please how those little red numbers work? Maybe our understanding is wrong..

20191120, 04:08  #269  
"James Heinrich"
May 2004
exNorthern Ontario
5^{5} Posts 
Quote:
The green background color was buggy (it should not extend to any cell with available or assigned exponents). This has been fixed. 

20191120, 05:43  #270 
Romulan Interpreter
Jun 2011
Thailand
22A7_{16} Posts 
Much better now, well done Sir!
If the 6000 assignments on "3730M to 68" are mine, then you can delete them (or they will expire anyhow in few days). I have no assignment at (or under) 68 right now, and they may be remnants from the past when I was trying to understand how your script works and most probably did few wrong rounds of "wget". I have no history nor backup and no way to restore them. Last fiddled with by LaurV on 20191120 at 05:44 
20191120, 05:55  #271 
"James Heinrich"
May 2004
exNorthern Ontario
5^{5} Posts 
I can tell what the assignments are, but they're truly anonymous so I don't know if they're yours or not. Just let them expire if they're yours and your (or someone) will get them reassigned in a few days.

20191120, 06:25  #272  
"Sam Laur"
Dec 2018
Turku, Finland
2^{3}×41 Posts 
Quote:
And whatever the mistake, it will expire in 10 days, which seems to be a good time for these short assignments. I know I've made my share of mistakes in the past... and it's sometimes a bit painful to wait for any sign of them to disappear from the table, but in the long term, luckily it doesn't matter. 

20191203, 06:02  #273 
"Seth"
Apr 2019
2·7·13 Posts 
TF verification
Hey James,
Not sure if this is the correct place, let me know if you think there's a better forum. I wrote up and coded a verifiable version of GPU trial factoring. The idea is that you save k that minimize pow(2, candidate, k) as a proof of correct computation / work. The math is covered in the post. That conversation petered out when more manual methods of detecting cheating were deployed. Obviously not all programs will support this and there will be some fun caveats (e.g. mfaktc with the larger kernel quits doesn't compute the final modulo so there will need to be multiple verification methods based on a kernel lookup). The value would be limited at first, but it feels like it's a good think to increase verification at a small(?) data cost. I'm wondering what/who it would take for mersenne.ca / mersenne.org to parse and save an additional log line per TFNF results. And if this is of interest to the community. Thanks 
20191203, 13:55  #274  
"James Heinrich"
May 2004
exNorthern Ontario
5^{5} Posts 
Quote:
I'm going to tell you to modify the output to JSON format, we can discuss the details in email. Please email james@mersenne.ca with the details, including a simplelanguage explanation of how to verify your checksum. 

20191208, 00:49  #275 
"Graham uses ISO 8601"
Mar 2014
AU, Sydney
F1_{16} Posts 
It remains curious to me that there is an apparent intention for .ca to remain distinct from .org, yet the icon that appears in web browser tabs is identical.
Would it not be reasonable that some distinction be made more clear by way of such icon? Perhaps a different colour? Or maple leaf background if you especially want! 
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