Plus access to more memory and faster access to it (vs DOS' extended/expanded method)? David W. Jones gnome@hawaii.rr.com authenticity, honesty, community http://dancingtreefrog.com On May 7, 2015 6:47 PM, Hal Lane <hallane@earthlink.net> wrote:

...

For any fractal program writers out there, this question. Can your program exceed the efficiency of Fractint, i.e. draw a fractal faster at the same resolution? If so, what resources did you use to do it?

I'm told (I forget by whom) that the primary speedup used in today's fractal programs is using multiple CPU cores simultaneously...

- Hal Lane

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-----Original Message----- From: Fractint [mailto:fractint-bounces@mailman.xmission.com] On Behalf Of Roger Kaufman Sent: Thursday, May 7, 2015 2:46 PM To: fractint@mailman.xmission.com Subject: Re: [Fractint] Slashdot deep zooming

Hey JOT,

On 5/7/2015 2:00 PM, fractint-request@mailman.xmission.com wrote:

...

I suspect treachery. Just think about it - the math behind each Mandelbrot pixel. And doing that with a number with hundreds or thousands of decimals. No.

There are "shortcut" methods and algorithm hacks to do it , like "interpolating" between 2 images. I am a purist - do it right or it don't count!

FractInt has some real tight "C" and "ASM" code - and it took me 3 years on several systems to get past E+100.

It is possible.

Looking into his discussion area he mentions "Mandel Machine".

https://www.youtube.com/channel/UCsRbcv18VcWJVtfAtbKV1Vw/discussion

Mandel Machine looks like it is a high precision fractal explorer which I don't see on Paul Lee's list. Looking at the history they mention using 80 bit precision. I have tried running it but it uses 64 bit Java and I have 32 bit. I am debating installing 64 bit as the claim they can co-exist but I want to do more research on that.

http://web.t-online.hu/kbotond/mandelmachine/

There are ways to get much higher, even open ended precision. The GMP library can do this and I am sure while they have made it efficient, there has to be payback to performance.

https://gmplib.org/

While I have the utmost respect for Fractint, it as a legacy system. For any fractal program writers out there, this question. Can your program exceed the efficiency of Fractint, i.e. draw a fractal faster at the same resolution? If so, what resources did you use to do it?

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