Hi Bruce,

I'm using the current dev build:

ProgramName: mri_ca_label  ProgramArguments: --all-info  ProgramVersion: $Name: 
 $  TimeStamp: 2016/07/21-13:42:39-GMT  BuildTimeStamp: Jul 12 2016 13:31:56  
CVS: $Id: mri_ca_label.c,v 1.113 2016/05/13 18:02:49 fischl Exp $  User: 
luesebrink  Machine: reco  Platform: Linux  PlatformVersion: 3.16.0-4-amd64  
CompilerName: GCC  CompilerVersion: 40400

and in the log it says to use 12 threads

== Number of threads available to mri_ca_label for OpenMP = 12 == 

however, at least while saving the intensity scale

saving intensity scales to aseg.auto_noCCseg.label_intensities.txt
saving sequentially combined intensity scales to 
aseg.auto_noCCseg.label_intensities.txt

it doesn't seem to help.

Best,
Falk

________________________________________
Von: Bruce Fischl [fis...@nmr.mgh.harvard.edu]
Gesendet: Donnerstag, 21. Juli 2016 15:30
An: Falk Lüsebrink
Cc: Freesurfer support list
Betreff: Re: AW: [Freesurfer] mri_ca_label with high resolution data

Hi Falk

the dev version of mri_ca_label does use openmp, so should be faster.

cheers
Bruce
On
Thu, 21 Jul 2016, Falk Lüsebrink wrote:

> Hi Bruce,
>
> I started the process again with openmp set to 12 using the dev build from 
> 12th July. However, mri_ca_label uses only 1 thread at that point. So I don't 
> assume any faster processing.
>
> Best,
> Falk
>
>
> -----Ursprüngliche Nachricht-----
> Von: freesurfer-boun...@nmr.mgh.harvard.edu 
> [mailto:freesurfer-boun...@nmr.mgh.harvard.edu] Im Auftrag von Bruce Fischl
> Gesendet: Dienstag, 19. Juli 2016 15:37
> An: Freesurfer support list
> Betreff: Re: [Freesurfer] mri_ca_label with high resolution data
>
> Hi Falk
>
> I think openmp will help with this in V6, but probably not before Bruce
>
> On Tue, 19
> Jul 2016, Falk Lüsebrink wrote:
>
>>
>> Hi all,
>>
>>
>>
>> I’m currently processing a 250 µm MPRAGE with a dev build from mid of May.
>> Running recon-all with default parameters ran flawlessly. Afterwards I
>> added the -hires flag to process the data without conformation.
>> However, since Saturday morning it is kind of stuck at mri_ca_label stating:
>>
>>
>>
>> saving sequentially combined intensity scales to
>> aseg.auto_noCCseg.label_intensities.txt
>>
>>
>>
>> while  consuming around 30 GB of memory. I ran something similar
>> before and processing works, it’s just terribly slow. Maybe this
>> particular stage is just not very efficient as it does take a few minutes on 
>> 1 mm data only?
>> Would it help to add the openmp flag in that case?
>>
>>
>>
>> Best,
>>
>> Falk
>>
>>
>>
>> ----------------------------------------
>>
>> Falk Lüsebrink, M. Sc.
>>
>>
>>
>> Otto-von-Guericke-Universität Magdeburg
>>
>> Forschungscampus STIMULATE
>>
>> http://www.forschungscampus-stimulate.de/
>>
>>
>>
>> Universitätsplatz 2
>>
>> 39106 Magdeburg
>>
>>
>>
>> Raum:    ExFa - 4.06
>>
>> Telefon: 0391-67-19366
>>
>> Fax:       0391-67-19347
>>
>>
>>
>>
>>
>
>
>


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