20080120, 22:34  #12  
May 2007
Kansas; USA
10,357 Posts 
Quote:
I'm trying to find a good balance between 'spreading the wealth' around and getting things searched quickly. Gary 

20080120, 22:40  #13  
Sep 2004
2·5·283 Posts 
Quote:


20080120, 22:44  #14 
May 2007
Kansas; USA
10,357 Posts 

20080120, 22:51  #15 
Sep 2004
2·5·283 Posts 
I prefer to concentrate on only one side. For now I'll help to clean this mess here, I still have to move another core when tomorrow I get to work...lol
Last fiddled with by em99010pepe on 20080120 at 22:54 
20080120, 23:03  #16 
May 2007
Kansas; USA
10,357 Posts 

20080120, 23:20  #17 
Sep 2004
UVic
2·5·7 Posts 
actually at one point there was a larger sieve file. jasong had started it, and had even emailed it to me at some point. but I seem to have lost it in both in my email and on my computer (from the hardware crash).
if I remember correctly it wasn't sieved very deeply yet but it had been at least started. sorry about that, back to square one once we reach the 1 mil mark 
20080121, 00:04  #18  
May 2007
Kansas; USA
10,357 Posts 
Quote:
I'm not sure how to take 'larger'. Have all candidates been tested up to the range that we are starting at? The Pvalue in the sieved file that you send is misleading. It only shows P=1G. I tried sieving for several hours starting at P=1G, 10G, 100G, and 1T and no factors were found. So I'm assuming that it was at least sieved past P=1T. With the few candidates remaining, sieving would be a waste of time at this point. LLRing takes about 1.752.5 hours per candidate. It's unlikely that we'd get that kind of removal rate from just 900+ remaining candidates even if we found the correct point that it had been sieved to. It's faster just to test them out at this point. Alas, we'll start anew at n=1M. Gary 

20080121, 01:56  #19 
Sep 2004
UVic
46_{16} Posts 
sieving what is left at this point definitely isn't worthwhile, I looked into that. what I meant by there was a larger one is:
jasong: "I'm sieving n=1 million to 5 million(base 4), which ultimately means all even values for base2 from 2 to 10 million." furthermore, jasong: "As soon as I get to 2000G, I'm probably going to be moving on to something else. It would be nice if someone could take over handing out the file." (both gathered from the original base 4 thread) I got that new dat file right after that, but now seem to have lost it. as for the *current* file, i.e. the one that we have right now going up to 1 million (base 4) that has been sieved to 7.5T. iirc the program that I used to split up a dat file into the corresponding .npg files just puts a (mostly) bogus top line on them. rest assured that when Jean's reservations and this one get to 1 mil it'll be an even playing field again and all of the candidates will be tested up to the 1 mil mark 
20080121, 08:43  #20  
May 2007
Kansas; USA
10,357 Posts 
Quote:
OK, thanks. Sounds good. In the mean time, n=885K890K is complete; no primes. Gary Last fiddled with by gd_barnes on 20080121 at 08:56 

20080121, 20:13  #21 
Sep 2004
2×5×283 Posts 
Here's the deal Gary...can I reserve all the files? Tomorrow I'll reserve another chunk of 4 files, then I'll wait 2 days to reserve the rest....

20080121, 20:34  #22  
May 2007
Kansas; USA
10,357 Posts 
Quote:
On this minidrive, I'm giving no restriction other than what I stated above; that is "Feel free to take whatever files you can do in a resonable time frame". So sure, reserve them all if you want to. I personally am not all that found of such highn searches. And based on Tcadigan's statements, he had also grown tired of the effort. Back to drives #1 and #2...I've thought quite a while about this. I've decided to open them up. People can take as many files as they have cores to process them. See the "Edit: Feel free to take one file for each core that you have available to run the searches." statement that I just now put in each drive. What I'll do in the future (like I've essentially done here) is somewhat limit things at the low ranges of n on drives and then as we get past n=400K base 2, I will open them up to the 'heavy hitters' such as yourself to process many files at a time. I think that will strike a good balance for everyone. In the case of this minidrive, of course you're welcome to reserve them all now. But if I had to give a choice, I feel that this one is a little lower priority than drives #1 and #2. I personally would like to see you knock out 56 files (or how many ever cores you have available) in Sierp base 16 but feel free to knock this one out first. With n=2K ranges on Sierp base 16, each file will take quite a bit longer than when we were at n<100K. Thanks for throwing your 'mean machines' at our project! We are all about flexibility here. Gary 

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