[vtkusers] Can VTK handle 1GB data?

[rakesh patil]

HI,

I found this link here

http://msdn.microsoft.com/en-us/library/aa366778%28v=VS.85%29.aspx

It is mentioned that,

Limits on physical memory for 32-bit platforms also depend on the Physical
Address Extension<http://msdn.microsoft.com/en-us/library/aa366796%28v=VS.85%29.aspx>(PAE),
which allows 32-bit Windows systems to use more than 4 GB of physical
memory.

and


4-gigabyte tuning (4GT), also known as application memory tuning, or the
/3GB switch, is a technology (only applicable to 32 bit systems) that alters
the amount of virtual address space available to user mode applications.
Enabling this technology reduces the overall size of the system virtual
address space and therefore system resource maximums.

Will this help me to achieve my task? Did anyone came across such situation?

Thanks

On Mon, Sep 12, 2011 at 10:17 PM, John Drescher <drescherjm at gmail.com>wrote:

> > Is it possible to load 1GB of data (xyz points or say point cloud) into
> VTK
> > and then extract contours from it? I am running my application on Windows
> > 2003 server with 4GB RAM. Any suggestions or solutions are welcomed.
> >
> Most likely not in a 32 bit windows operating system. Since you will
> be very limited due to address space fragmentation. Remember with the
> default 2GB per process limit (regardless of the ram you have) of 32
> bit windows gives you about 1.2 GB maximum single allocation.
> However like Michael Jackson said it will work fine if you have a 64
> bit executable on a 64 bit OS.
>
> John
>
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