[Homer-users] HomER- New Release!

[thuppert]

What is the size of the data?  (i.e. how many Src-Det
channels/wavelengths/sample frequency/time points )

Were you able to process the sample data??

Was this a problem loading the data, filtering it (updating), or only with
averaging?  If this was a problem with averaging, were you preforming
deconvolution (i.e the deconvution check box was checked)?

Deconvolution is the most memory exhaustive process, since it requires the
inversion of a matrix which is <number of time points > ^2.  For 300s of
data at 100 Hz, that's (100 x 300)^2 x 16bit = 14GB of RAM!!!   (at 10Hz,
that's only 150Mb).  I typically use data at 10Hz sample frequencies,
especially if I am doing event-related stimulus designs, which require
deconvolution.  Some of the statistics also requires similar inversions.

The memmory usuage I quoted was just to run the program (its what the Matlab
Runtime uses)... the actual usuage depends on the size/ammount of data.



Ted Huppert, M.Sc.

PhD student-Harvard Univ.
Dept of Biophysics
Photon Migration Imaging lab
Mass General Hospital/CNY

Tele: (617)726-1223
Cell: (617) 869-1205

thuppert at nmr.mgh.harvard.edu







-----Original Message-----
From: yzhu [mailto:yzhu at nlpr.ia.ac.cn]
Sent: Wednesday, September 14, 2005 11:21 PM
To: thuppert at nmr.mgh.harvard.edu
Subject: Re: [Homer-users] HomER- New Release!


Hello,when I run Homer to process my NIRS data,
a waring dialog which said out of memory appeared .
When I use averaging--options--(re)Calculate Statistics, it appeared.
I want to know the reason why it can't operate.
My OS is win2000, and memory is 1GB.
----- Original Message -----
From: "thuppert" <thuppert at nmr.mgh.harvard.edu>
To: <homer-users at nmr.mgh.harvard.edu>
Sent: Thursday, September 15, 2005 2:53 AM
Subject: RE: [Homer-users] HomER- New Release!


> You have the right version.  The new version of HomER runs under the
Matlab
> Runtime Component.  This is seperate from the normal Matlab program that
> most people are familar with.  The Runtime Component is a seperate
program,
> which I have supplied with the download of HomER. This program allows the
> execution of matlab scripts (*.m files) WITHOUT runing under normal matlab
> (i.e. so the computer doesn't need to have the full licensed version of
> Matlab installed or any toolboxes).
>
> After you download HomER and install, check the box to install the Runtime
> Component at the end of the installation process.  A seperate installation
> package will deploy and walk you through that set-up.  When this is
> finished, you will find that there is an icon for HomER.exe on the
desktop.
> Click on this to start HomER.  HomER will start in its own window (the
> normal Matlab program is not being run!!).  It takes a few moments the
first
> time you run HomER since there is a few house-keeping things to do the
first
> time it deploys (all subsequent times will be faster!)
>
>
> -Ted
>
>
> Ted Huppert, M.Sc.
>
> PhD student-Harvard Univ.
> Dept of Biophysics
> Photon Migration Imaging lab
> Mass General Hospital/CNY
>
> Tele: (617)726-1223
> Cell: (617) 869-1205
>
> thuppert at nmr.mgh.harvard.edu
>
>
>
>
>
>
>
>
>
> -----Original Message-----
> From: homer-users-bounces at nmr.mgh.harvard.edu
> [mailto:homer-users-bounces at nmr.mgh.harvard.edu]On Behalf Of Margaret
> Duff
> Sent: Wednesday, September 14, 2005 2:33 PM
> To: homer-users at nmr.mgh.harvard.edu
> Subject: Re: [Homer-users] HomER- New Release!
>
>
> Hello,  I downloaded Homer today and at the end it said I needed Matlab
> Component Runtime to be installed.  But here, it said no Matlab was needed
> and nothing would be installed for Matlab.  Did I get the wrong version?
> Or is the Matlab Component Runtime separate from regular matlab?  Thanks,
> Margaret
>
> On Tue, 30 Aug 2005, thuppert wrote:
>
> > We are pleased to announce the newest release of the HomER program for
> NIRS
> > data analysis!  This program is now available for download from the
Photon
> > Migration Imaging Laboratory at the Massachusetts General Hospital:
> >
> > http://www.nmr.mgh.harvard.edu/DOT/resources/homer/home.htm
> >
> >
> > This program is being released in a binary executable format.  This
newest
> > version does NOT require any version of Matlab nor any toolboxes to be
> > installed on your computer.  Also included is a more complete user's
guide
> > detailing the new features of the program, as well as full details on
> > initial installation.
> >
> > Note:  This new version is fully compatible with all previous versions
of
> > the saved data files.  Refer to the user's guide for more details.
> >
> >
> >
> >
>
****************************************************************************
> > **************
> > We would also like to remind people that we ask for registration
> information
> > when you first download HomER.  This information is very important to us
> > because we wish track HomER usage for reporting this information to the
> NIH,
> > which funds this work.  We therefore ask that you be as accurate as
> possible
> > when filling out these forms.
> >
> >
> >
> >
> > Questions and comments can be submitted to the
> > homer-users at nmr.mgh.harvard.edu email list server.
> >
> >
> >
> > Sincerely-
> >
> >
> > Ted Huppert, M.Sc.
> >
> > PhD student-Harvard Univ.
> > Dept of Biophysics
> > Photon Migration Imaging lab
> > Mass General Hospital/CNY
> >
> > Tele: (617)726-1223
> >
> > thuppert at nmr.mgh.harvard.edu
> >
> > _______________________________________________
> > Homer-users mailing list
> > Homer-users at nmr.mgh.harvard.edu
> > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/homer-users
> >
> >
> >
> _______________________________________________
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>
>


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