Archived sieve reservations and discussions

[Lennart]

Originally Posted by gribozavr

For P<65T I'm missing some Joshua2's factors:
10T-15T
25T-35T
45T-65T

Joshua2's 90T-120T file unpacked.

Lennart: can't connect to port 80, although that host replies to ping requests.

Sieving input:

480000-484999_11may2010.zip http://www.sendspace.com/file/srou2c http://www.rapidspread.com/file.jsp?id=wvkxjrbevp
480000-484999_11may2010.txt.gz http://www.sendspace.com/file/on86ar http://www.rapidspread.com/file.jsp?id=pzd7a1yjmu
480000-484999_11may2010.txt.xz http://www.sendspace.com/file/95gw4b http://www.rapidspread.com/file.jsp?id=kb5kdg4oen

485000-489999__11may2010.zip http://www.sendspace.com/file/sm8la6 http://www.rapidspread.com/file.jsp?id=zdxx1pen6k
485000-489999__11may2010.txt.gz http://www.sendspace.com/file/bwnhkv http://www.rapidspread.com/file.jsp?id=v5tvvxal7a
485000-489999__11may2010.txt.xz http://www.sendspace.com/file/550otw http://www.rapidspread.com/file.jsp?id=x9adyjrap9

LLR input (although I don't recommend doing any LLR now):

n_480000-480999__k_1_100000.txt http://www.sendspace.com/file/pxytxr

I'll start 10T-15T

Lennart

[TimSorbet]

Originally Posted by Historian

I see. What's your p/sec sieve rate,

Two separate trials, each trying to use 3 threads:

Sieve complete: 120000000000000 <= p < 120000010000000
Found 0 factors
count=308496,sum=0x01bfc2b43ee8d1d2
Elapsed time: 43.92 sec. (42.86 init + 1.06 sieve) at 9868951 p/sec.
Processor time: 33.48 sec. (31.20 init + 2.28 sieve) at 4596498 p/sec.
Average processor utilization: 0.73 (init), 2.15 (sieve)

Sieve complete: 120000000000000 <= p < 120000100000000
Found 2 factors
count=3085754,sum=0x12d09a04ab846742
Elapsed time: 102.95 sec. (95.19 init + 7.77 sieve) at 12895164 p/sec.
Processor time: 53.17 sec. (30.77 init + 22.41 sieve) at 4469244 p/sec.
Average processor utilization: 0.32 (init), 2.89 (sieve)

So roughly 4.5M p/sec per core (32-bit OS).

Originally Posted by Historian

and what processor are you using?

Quad-core Intel i5-750 running at 2807 MHz on 32-bit Windows XP. 64-bit should be drastically faster, perhaps twice as fast, but I don't know exactly how much faster.

If I had a 64-bit OS installed and more RAM available (2GB to share between Windows, Firefox, PRPnet server and clients, and any other apps I want to run doesn't really leave 1GB totally free for a sieving effort; and the OS bit difference means I'd be suboptimal), I'd participate more in this sieve.

[Oddball]

Originally Posted by Historian

I don't have enough memory to participate in the sieve, but I'm still interested in knowing the sieve rate

You might want to split up the sieve file into three parts (485000-486999, 487000-488399, 488400-490000), like I did. I'm getting ~13M/sec on a 3.2 GHz Pentium 4 for one part. Divide that by 3, and you get 4-5M/sec for the whole range.

[Historian]

Originally Posted by Oddball

You might want to split up the sieve file into three parts (485000-486999, 487000-488399, 488400-490000), like I did.

Good idea. I'll take a quickie:

Reserving 2500-2525, for the 485K-490K part.

[Historian]

2500-2525G complete:

http://www.sendspace.com/file/utpivs

18,000+ factors found

[Lennart]

10T-15T are done !

http://uwin.mine.nu

Lennart

[gribozavr]

Historian, Lennart: downloaded and verified your files.

[agent1]

reserving 2525-2600 range2

[Oddball]

Originally Posted by agent1

reserving 2525-2600 range2

Welcome to TPS! I've added your range to the first post, and I'll finish up my 500G range sometime by tomorrow.

[mdettweiler]

Reserving 2600G-2700G for n=485K-490K.

[mdettweiler]

Originally Posted by mdettweiler

Reserving 2600G-2700G for n=485K-490K.

Done, 68755 factors: http://www.sendspace.com/file/gknh4w

Reserving 25T-26T for n=480K-485K.