Re: [Freesurfer] Memory allocation problem trac-all -prior

Hi Rui - Just keep in mind that when you're removing lines from trainlist.txt, you're removing subjects from the atlas. So instead of using a tract atlas that's based on 33 subjects, you are now using a tract atlas based on as many subjects as the lines that remain in trainlist.txt.

a.y

On Tue, 17 Jul 2012, Rui Lavrador wrote:

Hi all,

I think I found the problem. I reduced the number of train files in the trainlist.txt file and it ran without errors. Maybe I will need more memory to run with all train files.

thanks

2012/7/16 Rui Lavrador ruilavrador@gmail.com

  ---------- Forwarded message ----------
  From: Rui Lavrador <ruilavrador@gmail.com>
  Date: 2012/7/16
  Subject: Re: [Freesurfer] Memory allocation problem trac-all
  -prior
  To: Anastasia Yendiki <ayendiki@nmr.mgh.harvard.edu>


  Hi Anastasia,
  Each diffusion volume has 128x128x60 voxels, and there are
  182138 voxels inside of the brain mask.

  Rui
  2012/7/12 Anastasia Yendiki <ayendiki@nmr.mgh.harvard.edu>

        Hi Rui - How many voxels are in your diffusion
        volume? How many of them are inside the mask?

        a.y

        On Thu, 12 Jul 2012, Rui Lavrador wrote:

              Hi all,
              I'm running tracula and when doing the
              step:
              trac-all -prior -c single_subject

              After some time it gives this error:

              MRIalloc(218, 182, 182): could not
              allocate 158704 bytes for 49th slice

              Cannot allocate memory

              I' m running tracula on Ubuntu 10.04,
              with 4GB ram. The diffusion data is
              DTI with 64 directions.

              This happens many times? I need more
              memory?

              Best regards,

              --
              Rui Lavrador

The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.

-- Rui Lavrador

Visual Neuroscience Laboratory IBILI-Faculdade de Medicina Azinhaga de Santa Comba 3000-548 Coimbra, Portugal Phone: +351 964985485 e-mail: rui.lavrador@fmed.uc.pt e-mail2: ruilavrador@gmail.com

-- Rui Lavrador

Visual Neuroscience Laboratory IBILI-Faculdade de Medicina Azinhaga de Santa Comba 3000-548 Coimbra, Portugal Phone: +351 964985485 e-mail: rui.lavrador@fmed.uc.pt e-mail2: ruilavrador@gmail.com

-- Rui Lavrador

Visual Neuroscience Laboratory IBILI-Faculdade de Medicina Azinhaga de Santa Comba 3000-548 Coimbra, Portugal Phone: +351 964985485 e-mail: rui.lavrador@fmed.uc.pt e-mail2: ruilavrador@gmail.com