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<DIV>Thank you.</DIV>
<DIV>I kept the dimension to the same value. I think reducing the spacing will
need less rows in the projections, because the physical length will reduce with
the spacing.</DIV>
<DIV>Interestingly, it also works if I use 0.0462 instead of 0.04623 as
spacing.</DIV>
<DIV>Yes, I use –subsetsize=1 and –division=2 while –lowmem enabled. The origin
is always updated with –0.5*spacing*(size-1);</DIV>
<DIV> </DIV>
<DIV>Best regards,</DIV>
<DIV>Louie</DIV>
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<DIV style="BACKGROUND: #f5f5f5">
<DIV style="font-color: black"><B>From:</B> <A
title=simon.rit@creatis.insa-lyon.fr
href="mailto:simon.rit@creatis.insa-lyon.fr">Simon Rit</A> </DIV>
<DIV><B>Sent:</B> Tuesday, August 04, 2015 12:09 PM</DIV>
<DIV><B>To:</B> <A title=ghostcz@hotmail.com
href="mailto:ghostcz@hotmail.com">ghostcz</A> </DIV>
<DIV><B>Cc:</B> <A title=rtk-users@public.kitware.com
href="mailto:rtk-users@public.kitware.com">rtk-users@public.kitware.com</A>
</DIV>
<DIV><B>Subject:</B> Re: [Rtk-users] CUFFT error</DIV></DIV></DIV>
<DIV> </DIV></DIV>
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<DIV>Hi,<BR></DIV>From <A
href="wlmailhtml:CUFFT_ALLOC_FAILED = 2, // cuFFT failed to allocate GPU or CPU memory Read more at: http://docs.nvidia.com/cuda/cufft/index.html#ixzz3hq6CLu9v Follow us: @GPUComputing on Twitter | NVIDIA on Facebook">this
page</A>, you have<BR><PRE>CUFFT_ALLOC_FAILED = 2, // cuFFT failed to allocate GPU or CPU memory</PRE>
<DIV
style="OVERFLOW: hidden; BORDER-TOP: medium none; BORDER-RIGHT: medium none; BORDER-BOTTOM: medium none; COLOR: rgb(0,0,0); TEXT-ALIGN: left; TEXT-DECORATION: none; BORDER-LEFT: medium none; BACKGROUND-COLOR: rgb(255,255,255)">This
is not suprising that you have a GPU memory issue when decreasing the spacing
because a finer volume spacing might require more rows of the projections
for the reconstruction and therefore you can end up with being out of memory.
Try processing one projection at a time with --subsetsize 1. If it's still too
large, you'll have to change your --dimension to process a smaller volume in the
y direction.<BR></DIV>
<DIV
style="OVERFLOW: hidden; BORDER-TOP: medium none; BORDER-RIGHT: medium none; BORDER-BOTTOM: medium none; COLOR: rgb(0,0,0); TEXT-ALIGN: left; TEXT-DECORATION: none; BORDER-LEFT: medium none; BACKGROUND-COLOR: rgb(255,255,255)">Simon<BR></DIV></DIV>
<DIV class=gmail_extra>
<DIV> </DIV>
<DIV class=gmail_quote>On Tue, Aug 4, 2015 at 10:49 AM, ghostcz <SPAN
dir=ltr><<A href="mailto:ghostcz@hotmail.com"
target=_blank>ghostcz@hotmail.com</A>></SPAN> wrote:<BR>
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style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
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<DIV>Dear rtk users/developers,</DIV>
<DIV> </DIV>
<DIV>I was testing the rtkfdk.exe application.</DIV>
<DIV>The program ran into an error and caught an exception saying:</DIV>
<DIV>“</DIV>
<DIV>itk::ExceptionObject (00000000002EEA60)</DIV>
<DIV>Location: "unknown"</DIV>
<DIV>File: C:/Users/liy/root/RTK/code/rtkCudaFFTRampImageFilter.cu</DIV>
<DIV>Line: 97</DIV>
<DIV>Description: itk::ERROR: CUFFT ERROR #2”</DIV>
<DIV>To save you a trip to the documentation, Line: 97 is here:</DIV>
<DIV>“</DIV>
<DIV>if(fftDimension.z==1)</DIV>
<DIV> result = cufftPlan2d(&fftFwd, inputDimension.y,
inputDimension.x, CUFFT_R2C);</DIV>
<DIV> else</DIV>
<DIV> result = cufftPlan3d(&fftFwd, inputDimension.z,
inputDimension.y, inputDimension.x, CUFFT_R2C);</DIV>
<DIV> CUFFT_CHECK_ERROR(result);</DIV>
<DIV>“</DIV>
<DIV> </DIV>
<DIV>This occurred when --spacing=0.04623, while the program works just fine
if I use --spacing=0.05.</DIV>
<DIV>Is there anyone can help me with this?</DIV>
<DIV> </DIV>
<DIV>Best regards,</DIV>
<DIV>Louie</DIV></DIV></DIV></DIV><BR>_______________________________________________<BR>Rtk-users
mailing list<BR><A
href="mailto:Rtk-users@public.kitware.com">Rtk-users@public.kitware.com</A><BR><A
href="http://public.kitware.com/mailman/listinfo/rtk-users" rel=noreferrer
target=_blank>http://public.kitware.com/mailman/listinfo/rtk-users</A><BR><BR></BLOCKQUOTE></DIV>
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