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Message boards : Proth Prime Search : A Question on Proth.exe

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sab
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Message 17038 - Posted: 22 Jul 2009 | 23:49:33 UTC

I have been using PrimeGrid for a little over a week now. I just downloaded proth.exe just to see if I could test some large proth numbers for primality (K being larger than 10000 of course so I don't overlap with this project :) ). Anyway, when I tested 12345 x 2^400001 +1 I got a memory error. This confused me because all of the 3,300 proth numbers I tried with PrimeGrid are at least that big and I had no issues.

The Proth.exe I downloaded was 7.1 which I think is a few years old. Any advice? Is there a newer, better version or is this a fluke?

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Message 17043 - Posted: 23 Jul 2009 | 12:32:45 UTC - in response to Message 17038.

I have been using PrimeGrid for a little over a week now. I just downloaded proth.exe just to see if I could test some large proth numbers for primality (K being larger than 10000 of course so I don't overlap with this project :) ). Anyway, when I tested 12345 x 2^400001 +1 I got a memory error. This confused me because all of the 3,300 proth numbers I tried with PrimeGrid are at least that big and I had no issues.

The Proth.exe I downloaded was 7.1 which I think is a few years old. Any advice? Is there a newer, better version or is this a fluke?


All I can say is "Don't use Proth". I is out-dated and very slow compared to LLR and PFGW.

sab
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Message 17049 - Posted: 23 Jul 2009 | 14:12:28 UTC - in response to Message 17043.

Ok, this brings me to my next question. I have sieved some numbers with NewPGen 2.82 and saved it to a file. I then downloaded LLR 3.7.1c Now, I should be able to use the sieved file from NewPGen and upload it into LLR. The only problem is I have no idea what "starting line number" means. I tried various numbers to mess around and I got the output: "choose test/input data to test more numbers" which is absurd because I have 1732 numbers to test.

Help would be appreciated, thanks

rogue
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Message 17054 - Posted: 23 Jul 2009 | 16:59:34 UTC - in response to Message 17049.

Ok, this brings me to my next question. I have sieved some numbers with NewPGen 2.82 and saved it to a file. I then downloaded LLR 3.7.1c Now, I should be able to use the sieved file from NewPGen and upload it into LLR. The only problem is I have no idea what "starting line number" means. I tried various numbers to mess around and I got the output: "choose test/input data to test more numbers" which is absurd because I have 1732 numbers to test.

Help would be appreciated, thanks


It refers to the line number of the input file from which you want to start. Try 1.

BTW, were you doing fixed n or fixed k sieving? If you were doing fixed k sieving, srsieve is faster than NewPGen.

sab
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Message 17055 - Posted: 23 Jul 2009 | 17:47:27 UTC - in response to Message 17054.

I am using fixed n sieving, so I'm using the right software I believe.


I Still cannot get the LLR program to work. It says "couldn't open service control manager..." I tried 1 and 2 for the imput line and the LLR icon turns green for a second, but then turns red again (IDLE).

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Message 17056 - Posted: 23 Jul 2009 | 18:13:34 UTC - in response to Message 17055.

A number of years ago I took part in Yves Gallot's Generalized Fermat Prime Search. We used GFNSieve for the sieving. The instructions are on This Page.

Although the software has moved on since then, maybe that will help.
____________
Warped

sab
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Message 17059 - Posted: 23 Jul 2009 | 19:53:00 UTC

I think I figured it out. I needed to have LLR in the same file directory as NewPGen! Thanks for your help!

rogue
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Message 17060 - Posted: 23 Jul 2009 | 19:55:59 UTC - in response to Message 17059.

I think I figured it out. I needed to have LLR in the same file directory as NewPGen! Thanks for your help!


The output file from NewPGen needs to be in the same folder as LLR, not NewPGen itself.

Message boards : Proth Prime Search : A Question on Proth.exe

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