Just a couple of things to add to John's reply:

* Most users who segment using Caret, 1Gb of memory is enough, but if your volume is very high resolution or otherwise is very large (e.g., dimensions of 300x300x300 are above those of a typical Caret user; most volumes are something like 150x200x150 or smaller in size). During processing, Caret has multiple volumes in memory concurrently.

* Once at least a year ago, I saw this error when the user's real trouble was disk space. He was working on a network drive that wasn't big enough for the intermediate files. Try running it in a local drive with gigabytes of free space (several times your volume size).

On 09/01/2006 02:55 PM, John Harwell wrote:
Hi Elena,

How old is your version of Caret? The date is listed in the main window titlebar.

There was fix related to crashing during error correction made on 24 Jan 2006.

In any case, an updated snapshot of caret (which contains just the executable) is available at "http://pub:[EMAIL PROTECTED]/pub/caret/". I would suggest that you try the update, and, if the problem still occurs, let me know.

John Harwell

Department of Anatomy and Neurobiology
Washington University School of Medicine
660 S. Euclid Ave. Box 8108
St. Louis, MO 63110 USA

On Sep 1, 2006, at 1:47 PM, Elena Spieker wrote:

While working with CARET on my desktop computer, during the manual error correction, I received a message stating "Out of memory: Caret is unable to get memory that it needs either because the computer lacks sufficient RAM memory or too many files are loaded. If Caret is continued it may crash." This is the second time I have received this message, the first time was on my laptop following the initial segmentation and I had assumed it was perhaps because the laptop was not capable of running the program. Is there a specific amount of memory required for running CARET? Do I simply need a computer with more memory or is there another way I can remedy this problem because the desktop I was working on does not contain much other information/programs? Thank you and I look forward to hearing from you regarding this problem.

Elena Spieker

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Donna L. Dierker
(Formerly Donna Hanlon; no change in marital status -- see 
http://home.att.net/~donna.hanlon for details.)

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