Thanks for the info, Nick. That is very helpful.

Our install partition has limited size. So the idea is not to get rid of anything, but rather move these big data files somewhere else with much larger disk quota. I guess I could move the whole subject away. As long as SUBJECTS_DIR is set correctly, it should look at the right place when needed. However, can the same method applied to other big directories, e.g. average, lib? I don't see any corresponding environment variables. 

Please advice.

On Tue, Mar 5, 2013 at 4:54 PM, Nick Schmansky <nicks@nmr.mgh.harvard.edu> wrote:
DJ,

Agreed that the distribution has gotten bloated.  In future releases I'd
like to change it to not include most of the data and to have recon-all
or other utilities print a 'wget' command to use to download the data
when needed.

I've updated the ReleaseNotes section with a list of some directories of
stuff that is not used in the default stream.  So deletion depends on
whether you or your local user-base will ever need these, which can be
tough to predict:

  * freesurfer/average/mult-comp-cor - Correction for Multiple
    Comparisons pre-calc - 1.3G
  * freesurfer/subjects/fsaverage? - fsaverage at other iso-levels -
    310M
  * freesurfer/subjects/fsaverage_sym - symmetric fsaverage for
    contra-lateral surface mapping - 197M
  * freesurfer/subjects/cvs_avg* - CVS Combined Volume and Surface
    registration target - 531M
  * freesurfer/trctrain - Tracula training set - 886M

These files in total are about 3GB.

https://surfer.nmr.mgh.harvard.edu/fswiki/ReleaseNotes

Nick


On Tue, 2013-03-05 at 13:43 -0600, Dian Jiao wrote:
> Hi,
>
>
> I was trying to install Freesurfer on a HPC cluster. It seems to be a
> pretty large distribution, ~4.3 GB after unpacking. I wonder if all
> the subfolders are needed for running freesurfer or is there any
> folders could be skipped. Thanks in advance.
>
>
> DJ
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