Not to hijack your question, but I have similar questions.  I have CUDA toolkit 3.1 installed, &quot;cudadetect&quot;  returns: &quot;Detecting CUDA... 32767 CUDA enabled device(s) detected.&quot; but, when I run recon-all, e.g.:<br>
<br>recon-all -subjid PC -all -use-gpu<br><br><br>I get the following errors at the mri_em_register_cuda step:<br><br><blockquote style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;" class="gmail_quote">
/lcn2/lesion_warp.dir/MAP3_Nifti/freesurfer_subs.dir/PC/mri<br><br> mri_em_register_cuda -skull nu.mgz /usr/freesurfer/average/RB_all_withskull_2008-03-26.gca transforms/talairach_with_skull.lta <br><br>mri_em_register_cuda: Command not found.<br>
Linux linux-lvmb 2.6.34-12-desktop #1 SMP PREEMPT 2010-06-29 02:39:08 +0200 x86_64 x86_64 x86_64 GNU/Linux<br></blockquote><div><br>A quick peak in /usr/freesurfer/bin shows that there is no mri_em_register_cuda binary.<br>
<br>Are cuda binaries supposed to be bundled with the new 5.0 release, or are they created on the fly by FreeSurfer, or are they just plain missing?  FWIW, I have CentOS 5 x86_64 version of FreeSurfer installed, running on OpenSuse 11.3<br>
 </div><br>recon-all -s PC exited with ERRORS at Tue Aug 17 11:14:35 CDT 2010<br><br><br><div class="gmail_quote">On Tue, Aug 17, 2010 at 11:07 AM, Gennan Chen <span dir="ltr">&lt;<a href="mailto:gennan.chen@synarc.com">gennan.chen@synarc.com</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">




<div>
<font face="Calibri, Verdana, Helvetica, Arial"><span style="font-size: 11pt;">Hi! <br>
<br>
I will like to try the beta CUDA support in 5.0. And I have some questions here<br>
<br>
</span></font>
<ol>
<li><font face="Calibri, Verdana, Helvetica, Arial"><span style="font-size: 11pt;">Are all needed libraries bundled in the release? Or I need to go to CUDA’s site to get those dependency?  And if I need to, what are those dependency I need to grab and install?
</span></font></li><li><font face="Calibri, Verdana, Helvetica, Arial"><span style="font-size: 11pt;">I have RH 5 64 bit linux box with single NVIDIA FX card and macpro snow leopard box with dual NVIIDA GT 120. Does CUDA support work for both OS? If they do, any idea what the speed
 up will be??<br>
</span></font></li></ol>
<font face="Calibri, Verdana, Helvetica, Arial"><span style="font-size: 11pt;"><br>
Gen</span></font> <br>
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