Running GGNFS - Page 14

schickel · 2009-01-31, 09:31

Quote:

Originally Posted by Andi47

Heureka!!

I found the problem: the ubasic command "doscmd" only accepts filenames in 8+3 format, so doscmd "gnfs-lasieve4I12e.exe" will probably get truncated and therefore doesn't work.

Ahhh...see, as I said over in the other thread, it must be something the command shell doesn't like.....unfortunately, ubasic is getting a little long in the tooth.

10metreh · 2009-01-31, 18:53

Jeff, your P4 compile of svn337 (at least that) has a bug in matbuild. This was printed to the logfile:

Code:

Max heap usage: 0 MB

What is preventing this from showing a proper value?

Jeff Gilchrist · 2009-01-31, 23:40

Quote:

Originally Posted by 10metreh

Jeff, your P4 compile of svn337 (at least that) has a bug in matbuild. This was printed to the logfile:

Code:

Max heap usage: 0 MB

What is preventing this from showing a proper value?

I have no idea. I didn't write that code, I just compiled it. Is matbuild not working or it just isn't showing the heap usage? It might be the same for all the Windows build, I'm not sure.

jasonp · 2009-02-01, 00:27

The code uses mallinfo to report the heap usage, and this code is only turned on when compiling within MinGW (it requires you #define MALLOC_REPORTING).

Batalov · 2009-02-01, 01:20

"State Trooper: What the hell are you driving here?
Del: We had a small fire last night, but we caught it in the nick of time.
State Trooper: Do you have any idea how fast you were going?
Del: Funny enough, I was just talking to my friend about that. Our speedometer has melted and as a result it's very hard to see with any degree of accuracy exactly how fast we were going..."

I am with John Candy on this one. I don't care if the speedometer shows a 0, as long as the car is running just fine.

10metreh · 2009-02-01, 08:31

Quote:

Originally Posted by Batalov

"State Trooper: What the hell are you driving here?
Del: We had a small fire last night, but we caught it in the nick of time.
State Trooper: Do you have any idea how fast you were going?
Del: Funny enough, I was just talking to my friend about that. Our speedometer has melted and as a result it's very hard to see with any degree of accuracy exactly how fast we were going..."

I am with John Candy on this one. I don't care if the speedometer shows a 0, as long as the car is running just fine.

I know that it's not really necessary to have the values.

Quote:

Originally Posted by Jeff Gilchrist

I have no idea. I didn't write that code, I just compiled it. Is matbuild not working or it just isn't showing the heap usage? It might be the same for all the Windows build, I'm not sure.

The svn322 for P4 I had been using worked fine for this. Matbuild is working fine.

Jeff Gilchrist · 2009-02-01, 12:40

Quote:

Originally Posted by 10metreh

The svn322 for P4 I had been using worked fine for this. Matbuild is working fine.

As jasonp pointed out, it is a compiler issue, so the P4 version you have must have been compiled with mingw32 for Windows while mine are with Visual Studio. I saw somewhere that you saw a 10-15% increase in speed with the siever I think with my P4 build, so if matbuild runs about the same speed as your other P4 build go ahead and mix and match to suit your needs.

I just wanted to make sure the program was working first before I went digging into the code since my time is very limited. Thanks jasonp for checking things out.

10metreh · 2009-02-01, 12:44

Quote:

Originally Posted by Jeff Gilchrist

As jasonp pointed out, it is a compiler issue, so the P4 version you have must have been compiled with mingw32 for Windows while mine are with Visual Studio. I saw somewhere that you saw a 10-15% increase in speed with the siever I think with my P4 build, so if matbuild runs about the same speed as your other P4 build go ahead and mix and match to suit your needs.

I just wanted to make sure the program was working first before I went digging into the code since my time is very limited. Thanks jasonp for checking things out.

Anyway, keep up the good work!

smh · 2009-02-01, 14:10

Who uses matbuild anyway these days?

10metreh · 2009-02-01, 15:25

Quote:

Originally Posted by smh

Who uses matbuild anyway these days?

factLat.pl uses it to check if there are enough relations. I only use it for building matrices on my base 2 2-brilliants, which are so small that msieve has problems.

Jeff Gilchrist · 2009-02-12, 00:45

Hello everyone. Since I am also a fairly new user to GGNFS and msieve for NFS factoring, I decided to put together a beginners guide on how to use the software with an example factoring a C121 with GNFS.

It is aimed at people with computer experience but who are new to NFS and not familiar with the different GGNFS pieces or how to use msieve for polynomial selection or post-processing.

If you have a minute, can you please check it out at:
http://gilchrist.ca/jeff/factoring/n...ers_guide.html

And let me know if I'm missing something or if you find any mistakes. It is not supposed to be a extensive guide explaining all the different options or best methods to do everything but just to help someone get started.

Thanks,
Jeff.

2009-01-31, 18:53	#145
10metreh Nov 2008 4422₈ Posts	Jeff, your P4 compile of svn337 (at least that) has a bug in matbuild. This was printed to the logfile: Code: Max heap usage: 0 MB What is preventing this from showing a proper value? Last fiddled with by 10metreh on 2009-01-31 at 18:53

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2009-02-01, 00:27	#147
jasonp Tribal Bullet Oct 2004 3543₁₀ Posts	The code uses mallinfo to report the heap usage, and this code is only turned on when compiling within MinGW (it requires you #define MALLOC_REPORTING).

2009-02-01, 01:20	#148
Batalov "Serge" Mar 2008 Phi(4,2^7658614+1)/2 9,497 Posts	"State Trooper: What the hell are you driving here? Del: We had a small fire last night, but we caught it in the nick of time. State Trooper: Do you have any idea how fast you were going? Del: Funny enough, I was just talking to my friend about that. Our speedometer has melted and as a result it's very hard to see with any degree of accuracy exactly how fast we were going..." I am with John Candy on this one. I don't care if the speedometer shows a 0, as long as the car is running just fine.

2009-02-01, 14:10	#152
smh "Sander" Oct 2002 52.345322,5.52471 29·41 Posts	Who uses matbuild anyway these days?

2009-02-12, 00:45	#154
Jeff Gilchrist Jun 2003 Ottawa, Canada 3·17·23 Posts	Hello everyone. Since I am also a fairly new user to GGNFS and msieve for NFS factoring, I decided to put together a beginners guide on how to use the software with an example factoring a C121 with GNFS. It is aimed at people with computer experience but who are new to NFS and not familiar with the different GGNFS pieces or how to use msieve for polynomial selection or post-processing. If you have a minute, can you please check it out at: http://gilchrist.ca/jeff/factoring/n...ers_guide.html And let me know if I'm missing something or if you find any mistakes. It is not supposed to be a extensive guide explaining all the different options or best methods to do everything but just to help someone get started. Thanks, Jeff.