Seti@Home optimized science apps and information
 
Welcome, Guest. Please login or register.
Did you miss your activation email?
11 Oct 2008, 10:10:49 pm

Login with username, password and session length
 
If you've registered already but never got your activation email, please click here.
 
 
Seti@Home optimized science apps and information  |  Optimized Seti@Home apps  |  Discussion Forum  |  Topic: Multibeam has arrived - please upgrade! 0 Members and 0 Guests are viewing this topic. « previous next »
Pages: 1 [2] Go Down Print
Author Topic: Multibeam has arrived - please upgrade!  (Read 3627 times)
Furex
Squire
*
Offline Offline

Posts: 20


View Profile WWW
Re: Multibeam has arrived - please upgrade!
« Reply #15 on: 11 Aug 2007, 08:19:53 pm »

Karma has a funny way of getting even, you know...

I don't get it - what do you mean?
Logged

Caro m' è 'l sonno, e più l'esser di sasso,
Mentre che 'l danno e la vergogna dura:
Non veder, non sentir, m' è gran ventura;
Però non mi destar, deh! parla basso
Josef W. Segur
Global Moderator
Knight who says 'Ni!'
*****
Offline Offline

Posts: 745


View Profile
Re: Multibeam has arrived - please upgrade!
« Reply #16 on: 11 Aug 2007, 10:27:31 pm »

...
With 2.2B I had a 62.40 WU in ~3,800 seconds. (True angle range:  0.426461)
Now with 2.4, 54.16 Credits for ~5,700 seconds. (True angle range:  0.405621)

Or now the changed multiplier has SO LARGE effects??  Angry  Sad  Cry
...

Yes, the difference in credits is due to the changed multiplier, and 0.426 Line feed work done with the new apps will also earn credits in the mid 50's. The difference in crunch time is because the 0.426461 is a Line feed WU, while the 0.405621 is a Multibeam WU.

Most users have noticed that Line feed WUs below 0.664 angle range have a much better credit/time ratio than those above that. The reason is that Pulse finding at 8192 FFT length isn't done above that, so the FLOP count drops abruptly, but crunch time doesn't decrease much. The 0.664 angle range is 8 times the Line feed beam width of 0.083. For Multibeam the same effect occurs at angle range 0.4 because it has a beam width of 0.05.

Sometime we'll get MB WUs with angle ranges below 0.4, there should be quite a few already in the data that's been gathered. They'll "pay" better.
                                                                Joe

Logged
Pages: 1 [2] Go Up Print 
Seti@Home optimized science apps and information  |  Optimized Seti@Home apps  |  Discussion Forum  |  Topic: Multibeam has arrived - please upgrade! « previous next »
Jump to:  


Quote!
Nothing is as easy as it looks.
- Murphy's Law

 
Site Statistics
Total Members:1,046
Total Posts:9,973
Total Topics:440
Downloads
Apps
Windows R-1.x25,105
Windows R-2.020,321
Windows R-2.236,511
Linux 32bit 1.x6,551
Linux 32bit 2.24,349
Linux 64bit 2.21,751
Alpha/IA64193
FreeBSD606
HPUX334
Subtotal:94,588
Source packs:4,121
Tool/WU packs:7,791
Total:154,080
GBs dl'd:280.45
Pages served
Today:4,036
Total:3,216,294
(since 6/26/2006)
173 Donations to S@H
U.S. Dollars:3,196.59
Euros:863.90
Last 24h:$ 0.00
Avg./24h:$ 7.08
Estim. total:$ 4,319.66
Latest Member:
Leaps-from-Shadows
 
 
Seti@Home optimized science apps and information | Powered by Enigma 2.0 (RC1).
© 2003-2008, LSP Dev Team. All Rights Reserved.
Seti@Home optimized science apps and information Forums | Powered by SMF.
© 2005, Simple Machines LLC. All Rights Reserved.
Powered by MySQL Powered by PHP Valid XHTML 1.0! Valid CSS!