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<DIV><SPAN class=002572919-25042005><FONT face=Arial color=#0000ff size=2>What
operating system are you using?</FONT></SPAN></DIV>
<DIV><SPAN class=002572919-25042005><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=002572919-25042005><FONT face=Arial color=#0000ff
size=2>Standard Windows systems only allow a process to access a little over 1GB
of memory. On linux, I this limit is about 3GB. </FONT></SPAN></DIV>
<DIV><SPAN class=002572919-25042005><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=002572919-25042005><FONT face=Arial color=#0000ff size=2>What
filters/algorithms are you trying to use? To process your data, you will
probably need about 1.6GB (800 MB for input and 800 MB for
output).</FONT></SPAN></DIV>
<DIV><SPAN class=002572919-25042005><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=002572919-25042005><FONT face=Arial color=#0000ff
size=2>Options: </FONT></SPAN></DIV>
<DIV><SPAN class=002572919-25042005><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=002572919-25042005><FONT face=Arial color=#0000ff size=2>1.
Some ITK filters can run "in place" where the output overwrites the input.
Depending on the filters you are using, you may be able to set InPlaceOn()
on the filter.</FONT></SPAN></DIV>
<DIV><SPAN class=002572919-25042005><FONT face=Arial color=#0000ff size=2>2. Set
ReleaseDataFlagOn() on filters. This will tell the filter to delete the
input memory once the output is calculated. You will need to be able to
address 1.6 GB of memory since the input and output will have to exist for the
duration of the filter computation. However, if you have a N stage
pipeline, your memory requiresments would remain 1.6GB instead of
N*800MB.</FONT></SPAN></DIV>
<DIV><SPAN class=002572919-25042005><FONT face=Arial color=#0000ff size=2>3.
Streaming. Many ITK filters can stream where portions of the output are
calculated a piece at a time. You may still need to address 1.6 GB of
memory to for hold the input and the final output. Take a look at the
StreamingImageFilter.</FONT></SPAN></DIV>
<DIV><SPAN class=002572919-25042005><FONT face=Arial color=#0000ff size=2>4.
Handle the memory management at the application level. Iteratively read
sections of your data (and process the sections individually or build a lower
resolution dataset).</FONT></SPAN></DIV>
<DIV><SPAN class=002572919-25042005><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=002572919-25042005><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=002572919-25042005><FONT face=Arial color=#0000ff
size=2>Jim</FONT></SPAN></DIV>
<DIV><SPAN class=002572919-25042005><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B>
insight-users-bounces@itk.org [mailto:insight-users-bounces@itk.org]<B>On
Behalf Of </B>Akiko Campbell<BR><B>Sent:</B> Monday, April 25, 2005 9:25
AM<BR><B>To:</B> insight-users@itk.org<BR><B>Subject:</B> [Insight-users]
itk::ExceptionObject (00FEF84C) - Failed toallocate memory for
image<BR><BR></FONT></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Hello,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I’m trying to load about 800MB of
data but I get:<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><SPAN class=SpellE><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">itk::ExceptionObject</SPAN></FONT></SPAN><FONT
face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">
(00FEF84C)<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Location: "<SPAN
class=SpellE>ImportImageContainer::AllocateElements</SPAN>"<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">File: c:\program
files\insighttoolkit-2.0.0\code\common\itkImportImageContainer.txx<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Line:
186<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Description: Failed to allocate
memory for image.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">My physical memory is 1GB and I
allocated 4GB of virtual memory.<SPAN style="mso-spacerun: yes">
</SPAN>Could someone tell me how to solve this problem? <SPAN
style="mso-spacerun: yes"> </SPAN>Thank
you.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Akiko<o:p></o:p></SPAN></FONT></P></DIV><BR>
<P><FONT size=2>--<BR>No virus found in this outgoing message.<BR>Checked by
AVG Anti-Virus.<BR>Version: 7.0.308 / Virus Database: 266.10.2 - Release Date:
2005-04-21<BR></FONT></P></BLOCKQUOTE></BODY></HTML>