Memory Limits?

Hello,

I have some vague memory of reading that grasshoper (or maybe Rhino) had a set limit to the amount of memory it could access.

I am using a different computer then I have previously, and I know that it should be much faster, but GH is only marginally improved. Grasshopper performs perfectly until it needs to perform a complex function (i.e. sweep several curvey surfaces) and then it freezes up for ahile. I know thats just part of life, but I have a feeling its not using as much virtual memory as it can due to some setting. I can still open up other heavy applications (ie photoshop) with no problem and they act with 100% speed.

Any ideas?

Replies to This Discussion

Permalink Reply by David Rutten on October 7, 2010 at 2:03pm

Hi Brian,

all software running on Windows 32-bit is limited to 2GB or memory (unless the 3GB switch is set, which we do not recommend). On Windows 64-bit the limit is much, much higher.

This is a per application limitation, so if Rhino is using 1.9GB, you can still start other apps that use a lot of memory. If there is not enough physical RAM in your machine to store all the runtime bytes, they get moved into a paging file, which is basically the hard-disc doubling as memory. As the read/write speed of a harddisc is pathetic compared to RAM, things will run very slowly indeed when this happens.

--
David Rutten
david@mcneel.com
Poprad, Slovakia

Permalink Reply by brian on October 7, 2010 at 2:24pm

Interesting. I'm running Windows 64-bit, but using Rhino 4 SR8. I think that Rhino will run as a 32-bit application even I'm using the 64-bit windows - do you think that has something to do with it?

Thanks for your response,
Brian.

Permalink Reply by David Rutten on October 7, 2010 at 3:09pm

Ah yes, Rhino4 is always a 32-bit application, so it will have a 2GB memory limit. Only Rhino5 has a 64-bit flavour.

--
David Rutten
david@mcneel.com
Poprad, Slovakia

Permalink Reply by Charles Aweida on October 7, 2010 at 3:13pm

You can download the Rhino 5 WIP for free and aces all your RAM, I would also recommend a solid state hard drive (SSD) This will improve your file paging speed tremendously

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