20070629, 23:58  #1 
"Jason Goatcher"
Mar 2005
3×7×167 Posts 
Tracking GIMPS progress with scripts
Lately, I've become fascinated with tracking GIMPS progress. Mostly, I've been watching (1) the leading edge(basically, I'll go to the end of the file and take a gander at the last number listed), (2) trailing edge of doublecheck, which is basically the very beginning of the file.
I'd like to add a third one, tracking the trailing edge of first pass, but the Edit feature of my browser doesn't seem to be up to the the task. Any ideas on how I could accomplish this? 
20070712, 04:28  #2 
1976 Toyota Corona years forever!
"Wayne"
Nov 2006
Saskatchewan, Canada
149B_{16} Posts 
Does this sort of help?
I simply counted "Cleared" records by Exponent Millions by month since Sept 2006. I also have individual subreports by LL, DC and Factoring. I also have corresponding graphs. From the attached chart you can see 4 "lumps": 1. One moving from 17M to 19M: Current Double Check range 2. One decreasing in volume at the 32M range: First Time tests below 10M digits 3. One moving from 35M to 38M: Current first time LL test above 10M digits. 4. One moving from 39M to 42M: Current factoring range. You can also see at the top the total per month is actually decreasing. This surprises me somewhat. While granted larger exponents take longer to LL test, the hardware should be increasing in speed at a similar rate, and hopefully the number of members grows or at least stays stable. 
20070712, 12:57  #3  
"Lucan"
Dec 2006
England
2·3·13·83 Posts 
Quote:
this period. But the decline in tests returned is largely accounted for by at least one increment in FFT size, and larger exponents so the tests are now taking significantly longer than in Sep 2006. (Your table shows this clearly). Note especially the jump from first time tests with exponents <33M to those >36M, due to the lowest 10M digit numbers having been tested long ago. David PS As for hardware improvements, I get the impression that the exploitation of multicore processors is not without its problems. Last fiddled with by davieddy on 20070712 at 13:41 

20070712, 14:58  #4 
1976 Toyota Corona years forever!
"Wayne"
Nov 2006
Saskatchewan, Canada
5^{2}×211 Posts 
We are very close to another big jump in FFT and testing time at 40,250,000. Not sure how much longer the tests will take but I can guess 33% since the points awarded will jump from 8.6 to 11.5.
Granted multicore hasn't caught on yet but I would assume on any given day dozens of GIMPS PCs are being replaced or upgraded ... maybe from a P3 866Mhz to a P4 2.8Ghz (as I did last month) or from a P4 1.7Mhz to a P4 2.4Ghz as I did a couple years ago OR adding friends and family computers; I added 3 in the last few months. 
20070712, 15:18  #5  
"Lucan"
Dec 2006
England
14512_{8} Posts 
Quote:
increases by 33%. Note that the FFT boundaries are slightly different for the fastest computers. I think the rate of processing has remained around 24 Teraflops/s during the last few months. 

20070712, 15:24  #6 
Dec 2003
Hopefully Near M48
3336_{8} Posts 

20070712, 15:30  #7 
Account Deleted
"Tim Sorbera"
Aug 2006
San Antonio, TX USA
11×389 Posts 

20070712, 18:57  #8 
"Lucan"
Dec 2006
England
2·3·13·83 Posts 

20070713, 03:18  #9  
"Jason Goatcher"
Mar 2005
3·7·167 Posts 
Quote:
JMO. 

20070713, 15:48  #10  
"Lucan"
Dec 2006
England
1100101001010_{2} Posts 
Quote:
shortly after it had verified that M17,105,059 was composite in 5 months I have now acquired a second hand PIII 800 MHz but I am reluctant to thrash it with another LLtest David Last fiddled with by davieddy on 20070713 at 15:51 

20070713, 17:43  #11 
1976 Toyota Corona years forever!
"Wayne"
Nov 2006
Saskatchewan, Canada
5^{2}×211 Posts 
My first GIMPS PC was a PII 400Mhz ... it ran for 15 months on M33xxxxxx and last reported in at 99.8% complete before my son ran something that swallowed up every bit of memory in an instant. The PC crashed so quickly that when I powered down and up again Prime95 determined it had to start from the beginning. I cried then I cancelled that test because in the meantime I had purchased a P4 1.7Ghz that could do the same test in 1 month. I relegated the P400 to Double checks; in the 11M range.
Last fiddled with by petrw1 on 20070713 at 17:44 
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