[#6577] memory issue when running fMRI-CPCA

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State: more information
Open
Date:
2012-05-24 08:15
Priority: more information
3
Submitted By:
Stephen Wilson (sjwilson)
Assigned To: more information
Nobody (None)
Hardware: 
Macintosh
Product: 
None
Operating System: 
MacOS X
Component: 
None
Version: 
None
Severity: 
None
Summary: more information
memory issue when running fMRI-CPCA

Detailed description

To Whom it May Concern:

I am hitting a memory problem in trying to run fMRI-CPCA on a
multi-run/multi-subject data set (specs of data set, machine, and matlab
pasted below).  I'm running on an cpca_8.3.02_Feb_2012  Specifically, I
am having an issue with the creation of GC matrices.  I created and
normalized the Z matrix without an issue, and a GZ matrix was created
for each subject in the GZsegs folder, but the program freezes while
creating the first or second GC matrix each time I try to run analyses. 
I can't seem to figure out a way to get the program to pick up where it
left off; i.e., it rewrites the GZ matrices each time I run analysis,
as opposed to starting with GC.  Is there any way to start with GC, or
are there any other suggestions that you have for addressing the memory
problem?  Thanks very much for your help.

Sincerely,

Steve Wilson



Z: [576450 x 159450]      718.09 Gb

G: [576450 x 1638]        7.38 Gb

C: [1638 x 159450]        2.04 Gb

CC: [1638 x 1638]       20.96 Mb

U: [1638 x 6]       76.78 Kb

F: [576450 x 6]       27.02 Mb

V: [159450 x 6]       27.02 Mb

 

minimum suggested installed memory: 8 GB



  Model Name:    Mac Pro

  Model Identifier:    MacPro5,1

  Processor Name:    Quad-Core Intel Xeon

  Processor Speed:    2.8 GHz

  Number Of Processors:    1

  Total Number Of Cores:    4

  L2 Cache (per core):    256 KB

  L3 Cache:    8 MB

  Memory:    6 GB



Matlab: 7.10.0.499 (R2010a)

32-bit (maci)

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