Richard,

Which version of freesurfer is being used? You can find out by typing 'bugr'. Does this memory problem occur for all analysis types, or just the one that you describe?

Nick

On Sat, 2008-10-11 at 15:54 -0500, Richard Frye wrote:

I am running qdec on a Mac Pro OS X 10.5.5 with dual quad pentiums mirrored RAID and 16GB memory.

I have followed the instruction for creating the qdec table, loaded the data in successfully and requested an analysis with two continuous variance. The following is the final output before it crashes because it cannot allocate memory. I have the maximum memory in my machine. What can I do?

$Id: mri_glmfit.c,v 1.138.2.1 2007/09/12 15:38:19 nicks Exp $

cwd /Volumes/share/MRI_Data

cmdline mri_glmfit --y /Volumes/share/MRI_Data/qdec/Untitled/y.mgh -- fsgd /Volumes/share/MRI_Data/qdec/Untitled/qdec.fsgd -- glmdir /Volumes/share/MRI_Data/qdec/Untitled --surf fsaverage lh -- label /Volumes/share/MRI_Data/fsaverage/label/lh.cortex.label -- C /Volumes/share/MRI_Data/qdec/Untitled/contrasts/Avg-Intercept- thickness.mat --C /Volumes/share/MRI_Data/qdec/Untitled/contrasts/Avg- thickness-RL-Cor.mat -- C /Volumes/share/MRI_Data/qdec/Untitled/contrasts/Avg-thickness-RC- Cor.mat

sysname Darwin

hostname Macintosh-2.local

machine i386

user stevenhecht

FixVertexAreaFlag = 1

UseMaskWithSmoothing 1

OneSampleGroupMean 0

y /Volumes/share/MRI_Data/qdec/Untitled/y.mgh

logyflag 0

usedti 0

FSGD /Volumes/share/MRI_Data/qdec/Untitled/qdec.fsgd

labelmask /Volumes/share/MRI_Data/fsaverage/label/lh.cortex.label

maskinv 0

glmdir /Volumes/share/MRI_Data/qdec/Untitled

DoFFx 0

Creating output directory /Volumes/share/MRI_Data/qdec/Untitled

Loading y from /Volumes/share/MRI_Data/qdec/Untitled/y.mgh

Matrix condition is 131.103

Found 149955 points in label.

Pruning voxels by frame.

Found 149955 voxels in mask

Saving mask to /Volumes/share/MRI_Data/qdec/Untitled/mask.mgh

search space = 59659.8

DOF = 32

Starting fit and test

10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

Fit completed in 0.0612333 minutes

Computing spatial AR1 on surface

Residual: ar1mn=0.997008, ar1std=0.001276, gstd=6.640355, fwhm=15.636842

Writing results

Avg-Intercept-thickness

maxvox sig=23.8959 F=850.546 at index 105774 0 0 seed=1224021971

Avg-thickness-RL-Cor

maxvox sig=3.8835 F=18.8999 at index 129111 0 0 seed=1224021971

Avg-thickness-RC-Cor

maxvox sig=-3.9267 F=19.2034 at index 152642 0 0 seed=1224021971

mri_glmfit done

ninputs = 3

Checking inputs

nframestot = 3

Allocing output

Writing to /Volumes/share/MRI_Data/qdec/Untitled/contrasts.sig.mgh

Reading in average area /Volumes/share/MRI_Data/fsaverage/surf/lh.white.avg.area.mgh

Reading in average area /Volumes/share/MRI_Data/fsaverage/surf/lh.pial.avg.area.mgh

qdec.bin(9066,0xa049cfa0) malloc: *** mmap(size=1953464320) failed (error code=12)

*** error: can't allocate region

*** set a breakpoint in malloc_error_break to debug

TAGskip: failed to calloc 1953461248 bytes!

Cannot allocate memory

Best Wishes,

Richard E. Frye, M.D., Ph.D., F.A.A.P. Assistant Professor of Pediatrics and Neurology University of Texas Medical School at Houston 7000 Fannin -- UCT 2478 Houston, TX 77030 Office: 713-500-3245 e-mail: richard.frye@gmail.com

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