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Hi,<br>
Maybe Amjad you should closely look at rtkfdk.cxx? I'm happy to
answer a specific question in this piece of code but RTK being open
source, I'm surprised by the question... Just track
args_info.lowmem_flag and args_info.divisions_arg to understand how
we code these options.<br>
Your other question is well answered by Chao (as usual, thanks!).<br>
Good luck,<br>
Simon<br>
<br>
<br>
<div class="moz-cite-prefix">On 21/04/2016 15:02, Chao Wu wrote:<br>
</div>
<blockquote
cite="mid:CAH+sHrVJSgjLRa04SJ0frMzm_7bEz8aAJf1eEXZRqU_5RW1qCQ@mail.gmail.com"
type="cite">
<div dir="ltr">
<div>Hi,</div>
<div><br>
</div>
<div>--lowmem and --subset work for reducing memory footprint
for projection data, and --division for memory usage of
reconstruction calculation.</div>
<div>SetProjectionSubsetSize() does not correspond to --division
but to --subset flag.</div>
<div>If you read the code, you will find without --lowmen the
reader is updated before other part of the pipeline being
executed; whereas with --lowmen flag it is updated together
with the pipeline, thus is streamed.</div>
<div><br>
</div>
<div>Regards,</div>
<div>Chao</div>
<div><br>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">2016-04-21 14:55 GMT+02:00 AMJAD N <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:amjad.n.cet@gmail.com" target="_blank">amjad.n.cet@gmail.com</a>></span>:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<div dir="ltr">Hi Simon,
<div><br>
</div>
<div>How can i use --lowmem as a code? BTW I am using
SetProjectionSubsetSize(16) in my code. Is that what
you meant by -- divisions 8? still it doesn't work for
500^3.</div>
<div><br>
</div>
<div>I also tried by using itk::StreamingImageFilter to
write the reconstructed volume. My requirement is
1024^3 volume.</div>
<div><br>
</div>
<div>Thanks and Regards,</div>
<div><br>
</div>
<div>AMJAD N<br>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Thu, Apr 21, 2016 at
5:50 PM, Simon Rit <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:simon.rit@creatis.insa-lyon.fr"
target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:simon.rit@creatis.insa-lyon.fr">simon.rit@creatis.insa-lyon.fr</a></a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0px
0px 0px
0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<div dir="ltr">
<div>Try --lowmem and if it still doesn't
work, --divisions 8 (the higher this number
the less memory).<br>
</div>
Simon<br>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">
<div>
<div>On Thu, Apr 21, 2016 at 1:44 PM,
AMJAD N <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:amjad.n.cet@gmail.com"
target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:amjad.n.cet@gmail.com">amjad.n.cet@gmail.com</a></a>></span>
wrote:<br>
</div>
</div>
<blockquote class="gmail_quote"
style="margin:0px 0px 0px
0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<div>
<div>
<div dir="ltr">Hi all,
<div><br>
</div>
<div>I tried to run rtkfdk ( ROOSTER
sample ) with following command.</div>
<div><br>
</div>
<div>-p . -r .*.his -o fdk.mha -g
geometry.rtk --hann 0.5 --pad 1.0
--dimension 500 --spacing 2<br>
</div>
<div><br>
</div>
<div>to identify the impact of large
reconstructed volume (500^3).
Still it gives memory allocation
error.</div>
<div>What might be the issue here?</div>
<div><br>
</div>
<div>Thanks and Regards</div>
<span><font color="#888888">
<div><br>
</div>
<div>AMJAD N</div>
</font></span></div>
<br>
</div>
</div>
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