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Hello Vin,



The latest/dev branch of freesurfer builds on Ubuntu 16 without cuda, 
but I have not tried compiling it for cuda on 16.04.  My understanding is 
that cuda builds
 are not officially supported.   I would first make sure that 
everything
 builds and runs w/o cuda.



I would try not to manually copy/change the installation of cuda 
libraries,. i.e., if you need a specific version then I would install 
that version (rather than use the cp command to clobber version 5 with version 
8, which may 
not be entirely backwards compatible and so could also 
cause run time errors).   

If you know what you have for graphics/GPU 
hardware, then you should be able to lookup online what versions of cuda
 it supports, e.g., for Nividia hardware, https://developer.nvidia.com/cuda-gpus


You can also get a currently supported cuda version to install for Ubuntu 16.04 
from 
this link, 
https://developer.nvidia.com/cuda-downloads?target_os=Linux&target_arch=x86_64&target_distro=Ubuntu&target_version=1604&target_type=runfilelocal



- R.






                vin rasa        February 6, 2019 at 12:17    
          External Email - Use 
Caution        Freesurfer Wizards, 
Any thoughts on this? 
Thanks in advance
##
I renamed:
/usr/local/cuda-8.0/lib64$ sudo cp libcudart.so.8.0 libcudart.so.5.0
in the next step:
recon-all -i $sub_dir/$i/"$i".nii -all -sd $output_dir $i -use-gpu..
Testing for CUDA device:
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2012 NVIDIA Corporation
Built on Fri_Sep_21_17:28:58_PDT_2012
Cuda compilation tools, release 5.0, V0.2.1221

Driver : 9.20
Runtime : 8.0

Acquiring CUDA device
Using default device
CUDA device: TITAN Xp
Segmentation fault 
Linux Dond-12 1.25.0-13-generic #36~16.04.1-Ubuntu SMP Wed Aug 15 17:21:05 UTC 
2018 x86_64 x86_64 x86_64 GNU/Linux

recon-all -s 2 exited with ERRORS at Mi 6. Feb 18:14:50 CET 2019

For more details, see the log file 
To report a problem, see http://surfer.nmr.mgh.harvard.edu/fswiki/BugReporting

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