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--- gpu [2018/04/16 11:35]
kocmanek [Performance tests]
+++ gpu [2018/04/23 12:53]
vodrazka [Set-up CUDA and CUDNN]
@@ Line 64: / Line 64: @@
 You also need to use ''qsub -q gpu.q@dll[256]'' because only those machines have drivers which support CUDA 9.
-**Testing configuration (so far on twister2 only)**
+**Testing configuration (so far on twister1 & 2 only)**
-Multiple versions of ''cuda'' and ''cudnn'' can be accessed in ''/opt''.
+Multiple versions of ''cuda'' can be accessed in ''/opt''.
-System default version for both libraries is configured in ''/etc/ld.so.conf.d/cuda.conf'' as:
+System default version for cuda library is configured in ''/etc/ld.so.conf.d/cuda.conf'' as:
   /opt/cuda/lib64
   /opt/cuda/extras/CUPTI/lib64
-  /opt/cudnn/lib64
 Actual version used depends on the link in ''/opt''. For example:
@@ Line 78: / Line 77: @@
   ...
   lrwxrwxrwx 1 root root  8 dub  9 12:30 cuda -> cuda-9.0
-  lrwxrwxrwx 1 root root  9 dub  9 12:32 cudnn -> cudnn-7.1
   ...
-This means that the system is using ''cuda 9.0'' and ''cudnn 7.1''.
+This means that the system is using ''cuda 9.0'' by default.
-If system default version does not work for you, you can set library path from your ''~/.bashrc''.
+If system default version does not work for you, you can set library path from your ''~/.bashrc''. Your LD_LIBRARY_PATH should contain:
+  /opt/cuda-$CUDA_version/lib64
+In order to link specific version of ''cudnn'' your LD_LIBRARY_PATH should contain:
+  /opt/cuda-$CUDA_version/cudnn/$CUDNN_version/lib64
+Please check if required CUDNN_version is available for given CUDA_version.

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