Hi Lori, It looks like Chimera is trying to read the full map #0 into memory and it is running out of memory. How big is that map file? If it is several hundred megabytes that is probably the issue. It is difficult to avoid these problems if you work with large data sets. Chimera 32-bit versions can only handle about 1 Gbyte of data. If you have large maps of several hundred Mbytes you can easily exceed that. Or if you have models with a few hundred thousand atoms you will run into trouble (uses about 2 Kbytes per atom, 100,000 atom = 200 Mbytes). It doesn't matter how much memory your machine has -- the limitation is that Chimera uses 32-bit pointers that can only address at most 4 Gbytes of memory (and much of that space is used for things other than your data, eg libraries, stack, ...). The only answer is to close some of your data our use the 64-bit Linux Chimera. We plan to distribute a 64-bit Windows and 64-bit Mac Chimera but that is 6 months or a year away. Tom
Subject: creating more memory From: Lori Nyland Date: Fri, 23 Oct 2009 10:24:10 -0400 To: chimera-users
Hello,
I have attached an image that shows the command line and the command where I am trying to save an image map of one volume relative to another. I received an error when the operation was executed. The error code is in the image. I noticed that there was an error in memory allocation (toward bottom of error script). So I think I need to allocate more memory. How do I do that?
Thanks so much!
Lori