GWNUM - Page 2

ATH · 2019-03-12, 10:07

ftp://mersenne.org/

the file: /gimps/p95v296b3.source.zip is the latest source code.

enzocreti · 2019-03-12, 10:35

I have installed Prime95
In the window of Code Blocks what I have to write?
#include what?
then?

paulunderwood · 2019-03-12, 15:59

Quote:

Originally Posted by enzocreti

I have installed Prime95
In the window of Code Blocks what I have to write?
#include what?
then?

Have you compiled Prime95 or mprime form its source code? This depends on your operating system. What is your operating system and is your machine and operating system 64 bit or are parts 32-bits?

paulunderwood · 2019-03-12, 16:20

Quote:

Originally Posted by enzocreti

What is the source of Prime95?

The source is written in the C language (plus some object files already compiled from assembly by George). This will need to be "compiled" -- that is converted from C to an executable. Move into the correct directory (of the source) for your operating system and machine architecture and run make. This is probably in a drop-down menu of Code Block's IDE (integrate development environment).

(make is a program that will help to compile the source. A "Makefile" sets the compiler switches/flags, paths, executable name, resulting library object etc., apt for Prime95/mprime.)

enzocreti · 2019-03-12, 16:42

Quote:

Originally Posted by paulunderwood

Have you compiled Prime95 or mprime form its source code? This depends on your operating system. What is your operating system and is your machine and operating system 64 bit or are parts 32-bits?

windows 10 64 bits

paulunderwood · 2019-03-12, 16:49

Quote:

Originally Posted by enzocreti

windows 10 64 bits

Quote:

File: p95v296b3.source.zip 50384 KB 26/02/2019 22:39:00 GMT

from ftp://mersenne.org/gimps/

Have you downloaded and unzipped this file?

On Linux I would run in the gwnum directory make -f compil64 gwnum64.lib for the Windows (

) library you will need. I have no clue how to do this with Code Block under win10. So, I am handing you over to my colleagues...

Prime95 · 2019-03-12, 17:41

GWNUM is not the most user friendly library for handling large numbers.

If you are new to C programming or this compiler, you should start with small programs and work your way up to GMP or other math library and then maybe GWNUM.

paulunderwood · 2019-03-13, 01:24

Quote:

Originally Posted by Prime95

GWNUM is not the most user friendly library for handling large numbers.

If you are new to C programming or this compiler, you should start with small programs and work your way up to GMP or other math library and then maybe GWNUM.

Yes, every C programmer should read the book The C Programming Language by Kernighan and Ritchie also known as K&R. It is a slim book packed with the essentials of the language.

enzocreti · 2019-03-13, 14:42

Quote:

Originally Posted by paulunderwood

Yes, every C programmer should read the book The C Programming Language by Kernighan and Ritchie also known as K&R. It is a slim book packed with the essentials of the language.

GWNUM can be used also for probable prime tests of not Mersenne primes? For every type of prime?

paulunderwood · 2019-03-13, 15:24

Quote:

Originally Posted by enzocreti

GWNUM can be used also for probable prime tests of not Mersenne primes? For every type of prime?

You might find the scripting language that comes with openPFGW more suitable for your purposes. It is ultimately based on GWNUM and is BASIC like.

With GWNUM one should be doing FFT floating point overflow error detection. It can be very complicated.

What sort of numbers did you have in mind?

enzocreti · 2019-03-14, 17:52

Quote:

Originally Posted by paulunderwood

You might find the scripting language that comes with openPFGW more suitable for your purposes. It is ultimately based on GWNUM and is BASIC like.

With GWNUM one should be doing FFT floating point overflow error detection. It can be very complicated.

What sort of numbers did you have in mind?

Simply: number formed by the concatenation in base 10 of two consecutive Mersenne numbers.
Examples are 31, 73, 157, 3115, 40952047...

2019-03-12, 10:35	#13
enzocreti Mar 2018 212₁₆ Posts	What I have to write in CODE BLOCKS? I have installed Prime95 In the window of Code Blocks what I have to write? #include what? then?

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2019-03-12, 10:07	#12
ATH Einyen Dec 2003 Denmark 3⁵×13 Posts	ftp://mersenne.org/ the file: /gimps/p95v296b3.source.zip is the latest source code.

2019-03-12, 17:41	#18
Prime95 P90 years forever! Aug 2002 Yeehaw, FL 1110101100110₂ Posts	GWNUM is not the most user friendly library for handling large numbers. If you are new to C programming or this compiler, you should start with small programs and work your way up to GMP or other math library and then maybe GWNUM.