title: Issues while verifying cudnn 7.3.0 installation
body: <p>OS: Ubuntu 18.04/ cuda 10.0/ tensorflow-gpu 1.13.1/ cudnn 7.3.0</p>
  <p>When I want to verify the installation of cudnn through <code>./mnistCUDNN</code>, it runs about 20 mins and failed like this:</p>
  <pre><code>
  cudnnGetVersion() : 7300 , CUDNN_VERSION from cudnn.h : 7300 (7.3.0)
  Host compiler version : GCC 7.5.0
  There are 1 CUDA capable devices on your machine :
  device 0 : sms 20  Capabilities 8.6, SmClock 1485.0 Mhz, MemSize (Mb) 3910, MemClock 6001.0 Mhz, Ecc=0, boardGroupID=0
  Using device 0
  
  Testing single precision
  Loading image data/one_28x28.pgm
  Performing forward propagation ...
  Testing cudnnGetConvolutionForwardAlgorithm ...
  Fastest algorithm is Algo 0
  Testing cudnnFindConvolutionForwardAlgorithm ...
  ^^^^ CUDNN_STATUS_SUCCESS for Algo 1: 0.001824 time requiring 100 memory
  ^^^^ CUDNN_STATUS_SUCCESS for Algo 0: 0.010240 time requiring 0 memory
  ^^^^ CUDNN_STATUS_SUCCESS for Algo 2: 0.018432 time requiring 57600 memory
  ^^^^ CUDNN_STATUS_SUCCESS for Algo 4: 0.052224 time requiring 207360 memory
  ^^^^ CUDNN_STATUS_NOT_SUPPORTED for Algo 3: -1.000000 time requiring 0 memory
  Resulting weights from Softmax:
  0.0000000 0.9999399 0.0000000 0.0000000 0.0000561 0.0000000 0.0000012 0.0000017 0.0000010 0.0000000 
  Loading image data/three_28x28.pgm
  Performing forward propagation ...
  Resulting weights from Softmax:
  0.0000000 0.0000000 0.0000000 0.9999288 0.0000000 0.0000711 0.0000000 0.0000000 0.0000000 0.0000000 
  Loading image data/five_28x28.pgm
  Performing forward propagation ...
  Resulting weights from Softmax:
  0.0997550 0.0892810 0.1054468 0.1071846 0.0902156 0.1043498 0.0953814 0.0938049 0.1155469 0.0990339 
  
  Result of classification: 1 3 8
  
  Test failed!
  Prediction mismatch
  mnistCUDNN.cpp:876
  Aborting...
  
  </code></pre>
  <p>But when I use <code>cat /usr/local/cuda/include/cudnn.h | grep CUDNN_MAJOR -A 2</code>, it showed:</p>
  <pre><code>#define CUDNN_MAJOR 7
  #define CUDNN_MINOR 3
  #define CUDNN_PATCHLEVEL 0
  --
  #define CUDNN_VERSION (CUDNN_MAJOR * 1000 + CUDNN_MINOR * 100 + CUDNN_PATCHLEVEL)
  
  #include &quot;driver_types.h&quot;
  </code></pre>
  <p>Also, I tried apt-get like <code>sudo apt-get install libcudnn7-doc=7.3.0.29-1+cuda10.0</code>, they all showed libcudnn7 libcudnn-dev libcudnn-doc are the the newest version (7.3.0.29-1+cuda10.0).</p>
  <p>I don’t know where goes wrong.</p>