Ahh, that did the trick. Thanks!

On Fri, Jul 11, 2014 at 5:30 PM, Bruce Fischl fischl@nmr.mgh.harvard.edu wrote:

Hi Mark

have you tried "conforming" the inputs (making them all 256^3, 1mm iso and 8 bits/voxel)? Bruce

On Fri, 11 Jul 2014, Mark Plantz wrote:

Hello freesurfers,

...

I am running into some sort of memory allocation issue when running mri_ca_train. I am simply using an intensity volume and a segmentation volume to create a GCA atlas. I keep getting this "segmentation fault: 11", which is data allocation error. I have tried using all different environments and can't avoid it. The output is below:

sh-3.2# mri_ca_train -T1 withSkull.mgz -seg seg_edited.mgz atlas_test /hearingbrain/Desktop/atlas_withSkull.gca reading T1 data from subject's mri/withSkull.mgz directory reading segmentation from subject's mri/seg_edited.mgz directory training on 1 subject and writing results to /Volumes/Macintosh HD/Users/hearingbrain/Desktop/atlas_withSkull.gca

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processing subject atlas_test, 1 of 1... reading input 0: /Applications/freesurfer/subjects/atlas_test/mri/ withSkull.mgz gca width modified from 256 to 181 gca height modified from 256 to 217 gca depth modified from 256 to 181 Segmentation fault: 11

Any ideas?

-MP

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