[Eeglablist] out of memory

[Gaurav Garg]

Dear Dr. Martin,

I have tried many things but I think the only solution which worked best for me is to move to 64-bit OS with supporting 64-Bit MATLAB as well.

Other solutions are generally, splitting that data in smaller frames/files then using it for processing and then after all the processing with all the frames you need to merge them may help you, also downsampling (e.g. 200Hz) to less number  of data points can reduce the memory requirement as less number of data points will be left there but this step will reduce the resolution as well.

Hope this would be able to solve your problem.

Thanks,

Best Regards,
Gaurav Garg



==================================================
Postgraduate Research Scholar
Room No. MS125
School of Computing and Intelligent Systems
University of Ulster
Magee Campus
Northland Road
Derry
Northern Ireland BT48 7JL



Tel(office): +442871371207
Email: gauravgarg4 at gmail.com<mailto:gauravgarg4 at gmail.com>

________________________________
From: Schecklmann Martin [Martin.Schecklmann at medbo.de]
Sent: 19 May 2010 15:29
To: 'eeglablist at sccn.ucsd.edu'
Subject: [Eeglablist] out of memory

Dear colleagues,

I'm a new user of EEGLAB and I think I have some problems with the RAM. I'm working with MatLab 7.10.0 (R2010a) and EEGLAB v8.0.3.5b. I'm using Windows XP with 3.21 GB RAM. When i want to load a dataset of a colleague in set file format (set file 5 MB und the fdt file with 400 MB) i get the message "out of memory" in a "fread Out error" window. The "memory" command in MatLab shows the following informations:
_______________________________________________________

Maximum possible array:              83 MB (8.720e+007 bytes) *
Memory available for all arrays:    510 MB (5.343e+008 bytes) **
Memory used by MATLAB:              288 MB (3.019e+008 bytes)
Physical Memory (RAM):             3292 MB (3.451e+009 bytes)

*  Limited by contiguous virtual address space available.
** Limited by virtual address space available.
_______________________________________________________

It looks that MatLab gets not enough memory. I already used older EEGLAB version, but that do not work as well. Did you have any advice for me?

Thanks a lot,

best regards,

Martin



________________________________
Medizinische Einrichtungen des Bezirks Oberpfalz GmbH (www.medbo.de)
Geschäftsführer: Kurt Häupl
Aufsichtsratvorsitzender: Bezirkstagspräsident Franz Löffler
Sitz: Universitätsstraße 84, 93053 Regensburg
Registergericht: Regensburg HR-Nr.: B9977
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://sccn.ucsd.edu/pipermail/eeglablist/attachments/20100524/c4fc042f/attachment.html>