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 2018-04-20, 16:47 #1 storm5510 Random Account     Aug 2009 Not U. + S.A. 43068 Posts Fact or Friction mfaktc: It would appear that the larger number of manual assignments a person gets, the larger the end factor tends to be. I take 10, it is 72. I take 15 it is 73. This 1080 goes through them rather rapidly. So, what happens if I take 50, or more?
2018-04-20, 16:51   #2
Mark Rose

"/X\(‘-‘)/X\"
Jan 2013

13×227 Posts

Quote:
 Originally Posted by storm5510 mfaktc: It would appear that the larger number of manual assignments a person gets, the larger the end factor tends to be. I take 10, it is 72. I take 15 it is 73. This 1080 goes through them rather rapidly. So, what happens if I take 50, or more?
I usually queue a day's worth. Some people will grab enough for a week. If your GTX 1080 can chew through 1100 GHz-d/day, then grab the appropriate amount of GH-d.

GPU72 work tends to be slow, so I think I've only had in the range of 10k assignments there. Using the manual GPU assignment page I've had over 100k assignments.

2018-04-20, 17:05   #3
petrw1
1976 Toyota Corona years forever!

"Wayne"
Nov 2006

3·37·47 Posts

Quote:
 Originally Posted by storm5510 mfaktc: It would appear that the larger number of manual assignments a person gets, the larger the end factor tends to be. I take 10, it is 72. I take 15 it is 73. This 1080 goes through them rather rapidly. So, what happens if I take 50, or more?
Are you using misfit?
It works fine for me and you can set the bit level and the exponent range and whether you get from GIMPS or GPU72.

I took 2,000 assignments before I went on vacation.

2018-04-20, 17:07   #4
storm5510
Random Account

Aug 2009
Not U. + S.A.

2×1,123 Posts

Quote:
 Originally Posted by Mark Rose I usually queue a day's worth. Some people will grab enough for a week. If your GTX 1080 can chew through 1100 GHz-d/day, then grab the appropriate amount of GH-d. GPU72 work tends to be slow, so I think I've only had in the range of 10k assignments there. Using the manual GPU assignment page I've had over 100k assignments.
I can do a 273 in seven minutes in the current assignment range, 181 million. Just under four minutes for a 272. Many times, the end bits are not uniform. Is there a specific way you calculate this?

2018-04-20, 18:47   #5
chalsall
If I May

"Chris Halsall"
Sep 2002

24×661 Posts

Quote:
 Originally Posted by storm5510 I can do a 273 in seven minutes in the current assignment range, 181 million.
Just pointing this out... The LLTF work GPU72 is handing out, to 76 bits in the 87M range, comprises 87.4 GHzD of effort (from 75 bits). So your 1080 would be able to do about 12.6 a day.

While you wouldn't find as many factors per temporal period, this work is of more immediate need to GIMPS; 181M probably won't be LL'ed for another decade or so.

Work is also available in the 92M range to 72 bits; ~5.2 GHzD per run. At least this effort will be utilized in a couple of years.

Entirely up to you, of course. It's your kit!

2018-04-20, 23:44   #6
storm5510
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Aug 2009
Not U. + S.A.

43068 Posts

Quote:
 Originally Posted by petrw1 Are you using misfit?
No, but I have seen the name here and there.

Quote:
 Originally Posted by chatsall Just pointing this out... The LLTF work GPU72 is handing out, to 76 bits in the 87M range, comprises 87.4 GHzD of effort (from 75 bits). So your 1080 would be able to do about 12.6 a day. While you wouldn't find as many factors per temporal period, this work is of more immediate need to GIMPS; 181M probably won't be LL'ed for another decade or so. Work is also available in the 92M range to 72 bits; ~5.2 GHzD per run. At least this effort will be utilized in a couple of years. Entirely up to you, of course. It's your kit!
Actually, I thought it would not be needed for 15 years, or more.

I looked at the link. Very interesting. I plan to look at this in detail.

2018-04-21, 01:18   #7
petrw1
1976 Toyota Corona years forever!

"Wayne"
Nov 2006

3×37×47 Posts

Quote:
 Originally Posted by storm5510 No, but I have seen the name here and there. Actually, I thought it would not be needed for 15 years, or more. I looked at the link. Very interesting. I plan to look at this in detail.
http://www.mersenneforum.org/forumdisplay.php?f=103

Or I welcome more help here:

2018-04-21, 01:38   #8
storm5510
Random Account

Aug 2009
Not U. + S.A.

1000110001102 Posts

Quote:
 Originally Posted by petrw1 http://www.mersenneforum.org/forumdisplay.php?f=103 Or I welcome more help here: http://www.mersenneforum.org/showthread.php?t=22476
I created an account on GPU to 72. I really like being able to specify assignments based on GHz-d/day, and factoring limit. As a test, I requested enough to run about 8 hours. mfaktc is happily churning away at 1,100+ GHz-d/day. All the assignments are in the 92 million range.

I did a cross check on mersenne.org. These particular exponents, no attention since 2015. I found that rather astonishing.

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