Trial division with CUDA (mmff) -- used, but runs like new! - Page 15

LaurV · 2012-09-12, 19:39

checking in:

Code:

[Wed Sep 12 05:16:00 2012]
no factor for MM61 from 2^114 to 2^115 (k range: 5200T to 5300T) [mmff 0.21 mfaktc_barrett120_M61gs]
[Wed Sep 12 03:16:24 2012]
no factor for MM61 from 2^114 to 2^115 (k range: 6400T to 6500T) [mmff 0.21 mfaktc_barrett120_M61gs]
[Wed Sep 12 16:43:58 2012]
no factor for MM61 from 2^114 to 2^115 (k range: 5300T to 5400T) [mmff 0.21 mfaktc_barrett120_M61gs]
[Wed Sep 12 14:28:18 2012]
no factor for MM61 from 2^114 to 2^115 (k range: 6500T to 6600T) [mmff 0.21 mfaktc_barrett120_M61gs]
[Thu Sep 13 00:12:55 2012]
no factor for MM61 from 2^114 to 2^115 (k range: 6600T to 6700T) [mmff 0.21 mfaktc_barrett120_M61gs]
[Thu Sep 13 02:43:39 2012]
no factor for MM61 from 2^114 to 2^115 (k range: 5400T to 5500T) [mmff 0.21 mfaktc_barrett120_M61gs]

MrHappy · 2012-09-12, 20:21

Quote:

Originally Posted by Prime95

Until Luigi gets his reservation system fully working, these ranges would take about 10 days each on a GTX 460:

...
MMFactor=127,3.7e15,4.0e15

etc.

127,3.7e15,4.0e15 is mine. :)

ixfd64 · 2012-09-12, 20:38

I think we can use the wiki to coordinate these assignments. For example, I've created a simple page here: http://mersennewiki.org/index.php/Mmff/status

How does it look?

Prime95 · 2012-09-12, 21:24

Quote:

Originally Posted by ixfd64

I think we can use the wiki to coordinate these assignments. For example, I've created a simple page here: http://mersennewiki.org/index.php/Mmff/status

How does it look?

Is Luigi's page inadequate? http://www.moregimps.it/doublemersennes/mm127.php

ET_ · 2012-09-12, 21:26

Quote:

Originally Posted by LaurV

checking in:

Code:

[Wed Sep 12 05:16:00 2012]
no factor for MM61 from 2^114 to 2^115 (k range: 5200T to 5300T) [mmff 0.21 mfaktc_barrett120_M61gs]
[Wed Sep 12 03:16:24 2012]
no factor for MM61 from 2^114 to 2^115 (k range: 6400T to 6500T) [mmff 0.21 mfaktc_barrett120_M61gs]
[Wed Sep 12 16:43:58 2012]
no factor for MM61 from 2^114 to 2^115 (k range: 5300T to 5400T) [mmff 0.21 mfaktc_barrett120_M61gs]
[Wed Sep 12 14:28:18 2012]
no factor for MM61 from 2^114 to 2^115 (k range: 6500T to 6600T) [mmff 0.21 mfaktc_barrett120_M61gs]
[Thu Sep 13 00:12:55 2012]
no factor for MM61 from 2^114 to 2^115 (k range: 6600T to 6700T) [mmff 0.21 mfaktc_barrett120_M61gs]
[Thu Sep 13 02:43:39 2012]
no factor for MM61 from 2^114 to 2^115 (k range: 5400T to 5500T) [mmff 0.21 mfaktc_barrett120_M61gs]

Thank you LaurV.

May I ask you to post results only when the range is completed?
Otherwise I should add a "notes" field to the db to hold the actual status...

Luigi

ixfd64 · 2012-09-12, 21:29

Quote:

Originally Posted by Prime95

Is Luigi's page inadequate? http://www.moregimps.it/doublemersennes/mm127.php

Luigi's website is great, but I was thinking the wiki could be used as a backup - just in case he is too busy in real life or something.

Also, his website currently doesn't cover Fermat numbers (although Wilfrid Keller's website does).

ET_ · 2012-09-12, 21:30

Quote:

Originally Posted by ixfd64

I think we can use the wiki to coordinate these assignments. For example, I've created a simple page here: http://mersennewiki.org/index.php/Mmff/status

How does it look?

It looks promising, but at the moment I use this one...

Luigi

P.S. Sorry, I read your post too late

You are welcome, I just try to avoid too many checkins from the users. Unless you are ready t take charge of updating the whole wiki...

P.S. /2: Some posts ago I asked if a sub-forum related to Double Mersennes and Fermat factoring could be useful... Mike told me that it is feasibe. We may create reservation and completion threads on both searches (heck, even on each MMp!), and leave this thread to discussions on the software. Should I post a poll, or we may gather votes right here?

ET_ · 2012-09-12, 21:34

I just bought the domain and the hosting. I hope we will have a new server by next week.

Luigi

kladner · 2012-09-12, 22:35

As one who has been an onlooker to this scene so far, it seems like a very good idea. The same thing has worked well for GPU72.

I'm still trying to learn enough about the whole field (MM & Fermat,) and the software to give it a try. This is also partly because I need to whittle down my worktodo load in TF and DC. I'm thinking that when I get there, I'll try it with the GTX 460, which is running CuLu presently.

One question: are the -st and -st2 switches supposed work to in mmff? I tried that on the GTX 570, but it crashed mmff.

Prime95 · 2012-09-13, 02:35

Quote:

Originally Posted by kladner

One question: are the -st and -st2 switches supposed work to in mmff? I tried that on the GTX 570, but it crashed mmff.

I'm not surprised -st and -st2 crash. There is some validation going on when you do normal double-Mersenne and Femat factoring. One remainder from the first 2 GPUsieves in each class are verified with slow C code.

kladner · 2012-09-13, 03:13

Quote:

Originally Posted by Prime95

I'm not surprised -st and -st2 crash. There is some validation going on when you do normal double-Mersenne and Femat factoring. One remainder from the first 2 GPUsieves in each class are verified with slow C code.

OK. Thanks, George! I have been looking for ways to find the flaw in this card (GTX 570), which keeps it from running CudaLucas. This doesn't seem to be it. Though I confess that I did not understand all of the explanation, I do appreciate the response.

2012-09-12, 21:34	#162
ET_ Banned "Luigi" Aug 2002 Team Italia 2²×3×401 Posts	www.doublemersennes.org I just bought the domain and the hosting. I hope we will have a new server by next week. Luigi Last fiddled with by ET_ on 2012-09-12 at 21:34

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2012-09-12, 20:38	#157
ixfd64 Bemusing Prompter "Danny" Dec 2002 California 2,377 Posts	I think we can use the wiki to coordinate these assignments. For example, I've created a simple page here: http://mersennewiki.org/index.php/Mmff/status How does it look?

2012-09-12, 22:35	#163
kladner "Kieren" Jul 2011 In My Own Galaxy! 2·3·1,693 Posts	As one who has been an onlooker to this scene so far, it seems like a very good idea. The same thing has worked well for GPU72. I'm still trying to learn enough about the whole field (MM & Fermat,) and the software to give it a try. This is also partly because I need to whittle down my worktodo load in TF and DC. I'm thinking that when I get there, I'll try it with the GTX 460, which is running CuLu presently. One question: are the -st and -st2 switches supposed work to in mmff? I tried that on the GTX 570, but it crashed mmff.