[jitter] loading more than 2GB of matrixes?

Hi Joshua,

On Sep 3, 2007, at 6:49 PM, Joshua Kit Clayton wrote:

>
> On Sep 3, 2007, at 10:19 AM, evan.raskob [lists] wrote:
>
>> My question is, how come there is this limit when creating  
>> matrices but not when loading a gigantic jit.qt.movie-read file  
>> into ram?  That way, I can load 5GB of movie data (into 16GB or  
>> RAM, for some reason...).  If OS X is 64-bit, ow come Max is  
>> limited to 32 bits of address space?  I'm probably missing  
>> something here.
>
> Like many applications, Max is currently only a 32 bit application.  
> You will need to figure out a strategy for using the disk to your  
> advantage.

I see.  Thanks for confirming that.


> If you are trying a *loadram* message to jit.qt.movie it will also  
> not load the RAM, if not crash. When you just open a file via read,  
> it is not loaded into RAM. Perhaps this is the discrepancy you are  
> seeing.

Using Activity monitor, I load a ~5GB Quicktime file and don't see a  
huge increase in RAM.  After next sending it a "loadram" message I  
see RAM usage jump to ~16GB (on a 16GB RAM, Quad-processor Intel  
Mac), and movie plays very well.  Unless there is something odd with  
Activity Monitor, or that I missing something important, doesn't this  
mean that entire 5GB of the movie is now in RAM?

thanks
Evan


> -Joshua
>
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