Operation Megabit Twin - Page 8

Flatlander · 2010-07-01, 10:01

79-83 is complete.
http://www.sendspace.com/file/wk9xb1

Flatlander · 2010-07-02, 09:48

90-94T is complete.
http://www.sendspace.com/file/1i6vz8

gribozavr · 2010-07-02, 10:42

I've downloaded all files.

amphoria · 2010-07-02, 21:25

Taking 94T-98T.

Oddball · 2010-07-02, 22:14

87T-90T complete:

http://www.sendspace.com/file/qwm2g8

Reserving 98T-100T.

amphoria · 2010-07-03, 16:15

83T-87T complete.

http://www.sendspace.com/file/u1160y

amphoria · 2010-07-05, 20:28

94T-98T complete.

http://www.sendspace.com/file/y4ws6k

Taking 100T-104T.

Oddball · 2010-07-05, 21:05

98T-100T complete:

http://www.sendspace.com/file/5oht2u

I'll get 104T-106T.

gribozavr, could you merge the 0-100T files and tell us:

- how many candidates are in that big file
- how much RAM is needed to sieve the file for twins using NewPGen
- how much RAM is needed to sieve the file for twins using tpsieve

gribozavr · 2010-07-06, 20:42

I've downloaded all files.

File 000T-100T.txt contains 99946129 k's. The file itself is 2.2 Gb, but only 300 Mb when compressed with xz.

tpsieve (64-bit) refuses to sieve it:

Code:

tpsieve version 0.3.4 (testing)
Compiled Sep  7 2009 with GCC 4.3.3
kmax-kmin < 3*2^36 is required

NewPGen refuses to open the 0T-100T file ("Cannot open the input file"). It seems that it doesn't like large (2 Gb +) files. NewPGen successfully opens a file for 0T-80T and uses 610 Mb of RAM. But it is really sloooooow (removing 1 k every 0.5 seconds).

Oddball · 2010-07-06, 21:31

Quote:

Originally Posted by gribozavr

NewPGen refuses to open the 0T-100T file ("Cannot open the input file"). It seems that it doesn't like large (2 Gb +) files. NewPGen successfully opens a file for 0T-80T and uses 610 Mb of RAM. But it is really sloooooow (removing 1 k every 0.5 seconds).

I see. If only 0-55T is sieved, what is the removal rate? Also, what's the removal rate if only 0-35T is sieved? I'm interested in knowing where the slowdown starts.

amphoria · 2010-07-07, 05:46

Quote:

Originally Posted by Oddball

I see. If only 0-55T is sieved, what is the removal rate? Also, what's the removal rate if only 0-35T is sieved? I'm interested in knowing where the slowdown starts.

I did a test using a smaller set of k's last weekend and the change from fastarray mode to array mode appeared to occur between 20T and 25T k's.

2010-07-06, 20:42	#86
gribozavr Mar 2005 Internet; Ukraine, Kiev 11×37 Posts	I've downloaded all files. File 000T-100T.txt contains 99946129 k's. The file itself is 2.2 Gb, but only 300 Mb when compressed with xz. tpsieve (64-bit) refuses to sieve it: Code: tpsieve version 0.3.4 (testing) Compiled Sep 7 2009 with GCC 4.3.3 kmax-kmin < 3*2^36 is required NewPGen refuses to open the 0T-100T file ("Cannot open the input file"). It seems that it doesn't like large (2 Gb +) files. NewPGen successfully opens a file for 0T-80T and uses 610 Mb of RAM. But it is really sloooooow (removing 1 k every 0.5 seconds).

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2010-07-01, 10:01	#78
Flatlander I quite division it "Chris" Feb 2005 England 31×67 Posts	79-83 is complete. http://www.sendspace.com/file/wk9xb1

2010-07-02, 09:48	#79
Flatlander I quite division it "Chris" Feb 2005 England 31×67 Posts	90-94T is complete. http://www.sendspace.com/file/1i6vz8

2010-07-02, 10:42	#80
gribozavr Mar 2005 Internet; Ukraine, Kiev 11×37 Posts	I've downloaded all files.

2010-07-02, 21:25	#81
amphoria "Dave" Sep 2005 UK 2³·347 Posts	Taking 94T-98T.

2010-07-02, 22:14	#82
Oddball May 2010 763₈ Posts	87T-90T complete: http://www.sendspace.com/file/qwm2g8 Reserving 98T-100T.

2010-07-03, 16:15	#83
amphoria "Dave" Sep 2005 UK 2³×347 Posts	83T-87T complete. http://www.sendspace.com/file/u1160y

2010-07-05, 20:28	#84
amphoria "Dave" Sep 2005 UK 2³×347 Posts	94T-98T complete. http://www.sendspace.com/file/y4ws6k Taking 100T-104T.

2010-07-05, 21:05	#85
Oddball May 2010 1F3₁₆ Posts	98T-100T complete: http://www.sendspace.com/file/5oht2u I'll get 104T-106T. gribozavr, could you merge the 0-100T files and tell us: - how many candidates are in that big file - how much RAM is needed to sieve the file for twins using NewPGen - how much RAM is needed to sieve the file for twins using tpsieve