Mandelbulb 3d on WIndows7 64Bit?

[kameelian]

Hi folks,

A quickie.

I currently run 32Bit WIndows7 on a relatively new laptop with modest performance.

Being newly hooked on Madelbulb3D, I am seriously contemplating getting a much faster PC just for fractal progs.

Can Mandelbulb3D (and madelbulber/UltraFractal for that matter) run on 64Bit Windows7 and therefore make use of the extra available RAM to speed up rendering?

...Or would it run but be restricted to 4GB if it is optimised for 32Bit?

Thanks in advance.

[taurus]

hi kameelian,

for mandelbulber, i can say, it doesn't benefit from a 64bit windows. the 64 bit version is only available for linux.

regards

[tomot]

hi kameelian,
for mandelbulber, i can say, it doesn't benefit from a 64bit windows. the 64 bit version is only available for linux.
regards

related to this topic, does mandelbulber run under Ubuntu?

[ker2x]

hi kameelian,
for mandelbulber, i can say, it doesn't benefit from a 64bit windows. the 64 bit version is only available for linux.
regards

related to this topic, does mandelbulber run under Ubuntu?

Yes, it works perfectly well
(on my win7 64 and my ubuntu 10.04 64)

[tomot]

Yes, it works perfectly well
(on my win7 64 and my ubuntu 10.04 64)

great, do know, or have you noticed if the 64bit version renders faster under Ubuntu?

[Madman]

Can Mandelbulb3D (and madelbulber/UltraFractal for that matter) run on 64Bit Windows7 and therefore make use of the extra available RAM to speed up rendering?

...Or would it run but be restricted to 4GB if it is optimised for 32Bit?

You can run  M3D on 64 bit Win7, but it is still a 32 bit application, so you are limited to 4GB and there's no speed increase. Just invest in multiple and fast cores!

[kameelian]

Thanks for that. It clarifies things for me.

regards
kam

[taurus]

You can run  M3D on 64 bit Win7, but it is still a 32 bit application, so you are limited to 4GB and there's no speed increase. Just invest in multiple and fast cores!

Can a single 32bit Application allocate 4 Gig under 64bit Windows? As far as i know 32bit Progs can allocate about 1.8 GB under 32bit Windows.

[Syntopia]

Can a single 32bit Application allocate 4 Gig under 64bit Windows? As far as i know 32bit Progs can allocate about 1.8 GB under 32bit Windows.

The 32-bit adress space is divided evenly into User-mode and Kernel-mode space, so there is a maximum of 2GB user space available under Windows for a single process. Notice that Microsoft impose weird artificial memory limits on Windows 7 versions, for instance, even on the 64-bit Windows 7 Starter edition, there is a 2GB limit: http://msdn.microsoft.com/en-us/library/aa366778%28v=vs.85%29.aspx

But anyway, none of this matters since Mandelbulb 3d doesn't use more than ~20MB of memory when running :-)

[kameelian]

... Mandelbulb 3d doesn't use more than ~20MB of memory when running :-)

Really? Gosh.
Good if you're on a low spec machine. Bad if you want to speed things up.

Kam

[Syntopia]

... Mandelbulb 3d doesn't use more than ~20MB of memory when running :-)

Really? Gosh.
Good if you're on a low spec machine. Bad if you want to speed things up.

Kam

Well, actually I was wrong - I just assumed no memory was used beside the screen-buffer (that is the way I render in Fragmentarium), which is typically 3 bytes per pixel.

I just tried rendering different size images, and it seems M3D uses a lot of buffers, or more like 22 bytes per pixel (it probably stores depth, color, normals, and other things beyond my imagination).

Rendering a 7 MegaPixel image required 163MB with a peak at 273MB during post-processing on my machine, so for very large images (40-50MP?) you might run out of memory on a 32-bit machine. More memory won't change the speed, though (unless you run into disk swapping).