How much memory is useful on WIndows 2000?

[HelgeS]

I have a Labview program running on Windows 2000, SP4. 1 Gbyte RAM was not enough for my application, so I installed 4 Gbyte, and it run much better.

But is 4Gbyte really useful? How much can Labview take advantage of? Windows reported that it had less than 4 Gbyte (IIRC, it was about 3.6 GB). The loss compared to 4 BG is no big deal. I just want to avoid running out of memory in my Labview application.

Can Labview handle more memory on other operating systems, such as XP, Vista or Linux? I use Win2k because it's the standard in my workplace.

Helge

[ThSa]

Hi Helge,

the GPOSs Win2000/WinXP represents 32bit systems. In this case it's possible to address 4GB RAM.
Unfortunately, LV is able to address only 2GB yet. Furthermore, LV needs continuous memory. This means, that the GPOS is not able to split the allocated memory in several parts.

Actually I am not aware what coming versions of LabVIEW may support, but in several LabVIEW upgrade notes you will find specific information about this constraints


BR,
ThSa

[rolfk]

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@Helge Stenstrom wrote:
I have a Labview program running on Windows 2000, SP4. 1 Gbyte RAM was not enough for my application, so I installed 4 Gbyte, and it run much better.

But is 4Gbyte really useful? How much can Labview take advantage of? Windows reported that it had less than 4 Gbyte (IIRC, it was about 3.6 GB). The loss compared to 4 BG is no big deal. I just want to avoid running out of memory in my Labview application.

Can Labview handle more memory on other operating systems, such as XP, Vista or Linux? I use Win2k because it's the standard in my workplace.

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Does your computer have shared graphics memory? Lots of Intel chipsets but also NVidea and ATI have so called low cost graphic chips that take the graphics memory from the main memory to save on graphics memory chips. This while working ok is not a good solution for high performance graphic machines that you would want to have for fast 3D gaming. For LabVIEW however and any office application it would not make any differnce at all.

No LabVIEW currently can only handle 2GB and so can most other 32 bit appilcations (maybe 3GB on Linux with appropriately patched kernel). The other caveats as mentioned in the previous answer apply.

NI has as far as I know not stated their roadmap about a 64 bit version of LabVIEW. Personally I think this will be a major work to do and it will not be doable without breaking some compatibility between 32bit version and 64bit version in certain parts.

Rolf Kalbermatter