Linear algebra reservations, progress and results - Page 36

RichD · 2015-10-08, 02:57

122 hours to solve a 12.7M matrix on Core-i5 -t 4 w/ TD=110. (TD=116 failed)

Code:

prp56 factor: 56162309779635314138709768656568188547765967383513002873
prp71 factor: 25324038203136083517604801386195489639013056870525731729815509973203593
prp105 factor: 279991747185308477400257495364382940365712671464319191449421480973623481168648828286836277142148745678329

swellman · 2015-10-08, 13:55

I'll take C175_142_39 once sieving is complete.

C179_139_61 managed to build a matrix at TD=130 and is in LA. Factors expected next Thursday.

fivemack · 2015-10-08, 20:07

I'll take F1405, starting linear algebra on Monday

debrouxl · 2015-10-09, 10:10

I have added 10M q values to C175_142_39, it was on the low side: below 210M raw relations.

RichD · 2015-10-09, 19:40

I'll take C174_117_79 next.

RichD · 2015-10-11, 14:04

124 hours to solve a 12.0M matrix on Core-i5 -t 4 with TD=116.

Code:

prp94 factor: 1635436364754866709175203077722097489334683267079443725835538146128360353736242255601015535807
prp149 factor: 10572857855750547699836727728026872623158757755564413708137687905230342799680975713011813224561190741758928989225115456501640801378348660784257863259

RichD · 2015-10-11, 14:22

34 hours to solve a 7.6M matrix on Core-i5 -t 4 with TD=120.

Code:

prp72 factor: 769092846162039722560641960206590643757561018289552833062137938366602311
prp103 factor: 1116897934443932751092223966212712487532630771338161602867247568035722837934177026719442849551656856529

VictordeHolland · 2015-10-12, 21:18

8_271_minus_5_271

Code:

prp63 factor: 669210440708603658600670975212436113442778902187076563175526507
prp179 factor: 16723029626383634548261066296001950801971168002922291683533187531366042703038654354357826967895658977127155413172863379630857098821097886525320346912129789169445339726132262616201

9.89M matrix, 69h on 4 cores i7 3770k, log attached.

Taking C200_118_77 next.

Xyzzy · 2015-10-13, 01:47

We are looking to help.

Where is the list of work that needs to be done?

We have done work similar to this in the distant past but all of our notes are long gone. If there is a simple guide please link us to it. We are using Linux if that matters. The box has an i7-3770K CPU with 32GiB of memory.

Thanks!

Edit: We have the msieve152 tarball downloaded, so that is a start, right?

fivemack · 2015-10-13, 07:14

It is very simple.

The projects that need doing are ones where the 'pending' number in http://escatter11.fullerton.edu/nfs/crunching.php has got very low but there is no name in the post-processing column. I'd start with C190_147_34, which ought to be quite quick; by the time it's finished F1415 should be ready and that's a project more worthy of your resources..

Make a directory for the project

Download the project.fb, project.ini and project.dat.gz files from http://escatter11.fullerton.edu/nfs_data into that directory

Decompress project.dat.gz

Rename the files as msieve.fb, worktodo.ini and msieve.dat respectively

Run 'wherever\you\put\msieve.exe -v -nc target_density=120 -t 4' and leave it for a week or so. With 32G of memory the machine should be entirely usable for other things while msieve is running.

Xyzzy · 2015-10-13, 11:13

Quote:

Originally Posted by fivemack

I'd start with C190_147_34…

Okay, we'll take that one.

Quote:

Originally Posted by fivemack

Download the project.fb, project.ini and project.dat.gz files from http://escatter11.fullerton.edu/nfs_data into that directory

Fortunately the password hasn't changed!

Quote:

Originally Posted by fivemack

Run 'wherever\you\put\msieve.exe -v -nc target_density=120 -t 4' and leave it for a week or so.

So no need to run "remdups4"?

Thanks!

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
restarting nfs linear algebra	cubaq	YAFU	2	2017-04-02 11:35
Linear algebra at 600%	CRGreathouse	Msieve	8	2009-08-05 07:25
Linear algebra crashes	10metreh	Msieve	3	2009-02-02 08:34
Linear algebra proof	Damian	Math	8	2007-02-12 22:25
Linear algebra in MPQS	R1zZ1	Factoring	2	2007-02-02 06:45

2015-10-08, 13:55	#387
swellman Jun 2012 2²×773 Posts	I'll take C175_142_39 once sieving is complete. C179_139_61 managed to build a matrix at TD=130 and is in LA. Factors expected next Thursday.

2015-10-08, 20:07	#388
fivemack (loop (#_fork)) Feb 2006 Cambridge, England 2³×11×73 Posts	I'll take F1405, starting linear algebra on Monday

2015-10-09, 10:10	#389
debrouxl Sep 2009 977 Posts	I have added 10M q values to C175_142_39, it was on the low side: below 210M raw relations.

2015-10-09, 19:40	#390
RichD Sep 2008 Kansas 2⁶×53 Posts	I'll take C174_117_79 next.

2015-10-13, 01:47	#394
Xyzzy "Mike" Aug 2002 2035₁₆ Posts	We are looking to help. Where is the list of work that needs to be done? We have done work similar to this in the distant past but all of our notes are long gone. If there is a simple guide please link us to it. We are using Linux if that matters. The box has an i7-3770K CPU with 32GiB of memory. Thanks! Edit: We have the msieve152 tarball downloaded, so that is a start, right?

2015-10-13, 07:14	#395
fivemack (loop (#_fork)) Feb 2006 Cambridge, England 2³×11×73 Posts	It is very simple. The projects that need doing are ones where the 'pending' number in http://escatter11.fullerton.edu/nfs/crunching.php has got very low but there is no name in the post-processing column. I'd start with C190_147_34, which ought to be quite quick; by the time it's finished F1415 should be ready and that's a project more worthy of your resources.. Make a directory for the project Download the project.fb, project.ini and project.dat.gz files from http://escatter11.fullerton.edu/nfs_data into that directory Decompress project.dat.gz Rename the files as msieve.fb, worktodo.ini and msieve.dat respectively Run 'wherever\you\put\msieve.exe -v -nc target_density=120 -t 4' and leave it for a week or so. With 32G of memory the machine should be entirely usable for other things while msieve is running.