diff --git a/.travis.yml b/.travis.yml
index fe18df55aee..f63463aebb7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -212,7 +212,7 @@ matrix:
             - libopencv-dev
       env:
         - CUDACXX=/usr/local/cuda-10.0/bin/nvcc
-        - MATRIX_EVAL="wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/7fa2af80.pub && sudo dpkg -i cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1404/x86_64/nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo dpkg -i nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo apt-get -y update && sudo apt-get install -y --no-install-recommends cuda-compiler-10-0 cuda-libraries-dev-10-0 cuda-cudart-dev-10-0 cuda-cublas-dev-10-0 cuda-curand-dev-10-0 && sudo apt-get install -y --no-install-recommends libcudnn7-dev"
+        - MATRIX_EVAL="wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/7fa2af80.pub && sudo dpkg -i cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1404/x86_64/nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo dpkg -i nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo apt-get -y update && sudo apt-get install -y --no-install-recommends cuda-compiler-10-0 cuda-libraries-dev-10-0 cuda-driver-dev-10-0 cuda-cudart-dev-10-0 cuda-cublas-dev-10-0 cuda-curand-dev-10-0 && sudo apt-get install -y --no-install-recommends libcudnn7-dev"
 
     - os: linux
       compiler: clang
@@ -225,7 +225,7 @@ matrix:
             - clang-3.6
       env:
         - CUDACXX=/usr/local/cuda-10.0/bin/nvcc
-        - MATRIX_EVAL="CC=clang-3.6 && CXX=clang++-3.6 && wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/7fa2af80.pub && sudo dpkg -i cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1404/x86_64/nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo dpkg -i nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo apt-get -y update && sudo apt-get install -y --no-install-recommends cuda-compiler-10-0 cuda-libraries-dev-10-0 cuda-cudart-dev-10-0 cuda-cublas-dev-10-0 cuda-curand-dev-10-0 && sudo apt-get install -y --no-install-recommends libcudnn7-dev"
+        - MATRIX_EVAL="CC=clang-3.6 && CXX=clang++-3.6 && wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/7fa2af80.pub && sudo dpkg -i cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1404/x86_64/nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo dpkg -i nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo apt-get -y update && sudo apt-get install -y --no-install-recommends cuda-compiler-10-0 cuda-libraries-dev-10-0 cuda-driver-dev-10-0 cuda-cudart-dev-10-0 cuda-cublas-dev-10-0 cuda-curand-dev-10-0 && sudo apt-get install -y --no-install-recommends libcudnn7-dev"
 
     - os: linux
       compiler: clang
@@ -240,7 +240,7 @@ matrix:
             - clang-3.8
       env:
         - CUDACXX=/usr/local/cuda-10.0/bin/nvcc
-        - MATRIX_EVAL="CC=clang-3.8 && CXX=clang++-3.8 && wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/7fa2af80.pub && sudo dpkg -i cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1404/x86_64/nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo dpkg -i nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo apt-get -y update && sudo apt-get install -y --no-install-recommends cuda-compiler-10-0 cuda-libraries-dev-10-0 cuda-cudart-dev-10-0 cuda-cublas-dev-10-0 cuda-curand-dev-10-0 && sudo apt-get install -y --no-install-recommends libcudnn7-dev"
+        - MATRIX_EVAL="CC=clang-3.8 && CXX=clang++-3.8 && wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/7fa2af80.pub && sudo dpkg -i cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1404/x86_64/nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo dpkg -i nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo apt-get -y update && sudo apt-get install -y --no-install-recommends cuda-compiler-10-0 cuda-libraries-dev-10-0 cuda-driver-dev-10-0 cuda-cudart-dev-10-0 cuda-cublas-dev-10-0 cuda-curand-dev-10-0 && sudo apt-get install -y --no-install-recommends libcudnn7-dev"
 
     - os: linux
       compiler: clang
@@ -255,7 +255,7 @@ matrix:
             - clang-3.9
       env:
         - CUDACXX=/usr/local/cuda-10.0/bin/nvcc
-        - MATRIX_EVAL="CC=clang-3.9 && CXX=clang++-3.9 && wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/7fa2af80.pub && sudo dpkg -i cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1404/x86_64/nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo dpkg -i nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo apt-get -y update && sudo apt-get install -y --no-install-recommends cuda-compiler-10-0 cuda-libraries-dev-10-0 cuda-cudart-dev-10-0 cuda-cublas-dev-10-0 cuda-curand-dev-10-0 && sudo apt-get install -y --no-install-recommends libcudnn7-dev"
+        - MATRIX_EVAL="CC=clang-3.9 && CXX=clang++-3.9 && wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/7fa2af80.pub && sudo dpkg -i cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1404/x86_64/nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo dpkg -i nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo apt-get -y update && sudo apt-get install -y --no-install-recommends cuda-compiler-10-0 cuda-libraries-dev-10-0 cuda-driver-dev-10-0 cuda-cudart-dev-10-0 cuda-cublas-dev-10-0 cuda-curand-dev-10-0 && sudo apt-get install -y --no-install-recommends libcudnn7-dev"
 
     - os: linux
       compiler: clang
@@ -270,7 +270,7 @@ matrix:
             - clang-4.0
       env:
         - CUDACXX=/usr/local/cuda-10.0/bin/nvcc
-        - MATRIX_EVAL="CC=clang-4.0 && CXX=clang++-4.0 && wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/7fa2af80.pub && sudo dpkg -i cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1404/x86_64/nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo dpkg -i nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo apt-get -y update && sudo apt-get install -y --no-install-recommends cuda-compiler-10-0 cuda-libraries-dev-10-0 cuda-cudart-dev-10-0 cuda-cublas-dev-10-0 cuda-curand-dev-10-0 && sudo apt-get install -y --no-install-recommends libcudnn7-dev"
+        - MATRIX_EVAL="CC=clang-4.0 && CXX=clang++-4.0 && wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/7fa2af80.pub && sudo dpkg -i cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1404/x86_64/nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo dpkg -i nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo apt-get -y update && sudo apt-get install -y --no-install-recommends cuda-compiler-10-0 cuda-libraries-dev-10-0 cuda-driver-dev-10-0 cuda-cudart-dev-10-0 cuda-cublas-dev-10-0 cuda-curand-dev-10-0 && sudo apt-get install -y --no-install-recommends libcudnn7-dev"
 
     - os: linux
       compiler: clang
@@ -285,7 +285,7 @@ matrix:
             - clang-5.0
       env:
         - CUDACXX=/usr/local/cuda-10.0/bin/nvcc
-        - MATRIX_EVAL="CC=clang-5.0 && CXX=clang++-5.0 && wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/7fa2af80.pub && sudo dpkg -i cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1404/x86_64/nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo dpkg -i nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo apt-get -y update && sudo apt-get install -y --no-install-recommends cuda-compiler-10-0 cuda-libraries-dev-10-0 cuda-cudart-dev-10-0 cuda-cublas-dev-10-0 cuda-curand-dev-10-0 && sudo apt-get install -y --no-install-recommends libcudnn7-dev"
+        - MATRIX_EVAL="CC=clang-5.0 && CXX=clang++-5.0 && wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/7fa2af80.pub && sudo dpkg -i cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1404/x86_64/nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo dpkg -i nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo apt-get -y update && sudo apt-get install -y --no-install-recommends cuda-compiler-10-0 cuda-libraries-dev-10-0 cuda-driver-dev-10-0 cuda-cudart-dev-10-0 cuda-cublas-dev-10-0 cuda-curand-dev-10-0 && sudo apt-get install -y --no-install-recommends libcudnn7-dev"
 
     - os: linux
       compiler: clang
@@ -301,7 +301,7 @@ matrix:
             - clang-6.0
       env:
         - CUDACXX=/usr/local/cuda-10.0/bin/nvcc
-        - MATRIX_EVAL="CC=clang-6.0 && CXX=clang++-6.0 && wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/7fa2af80.pub && sudo dpkg -i cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1404/x86_64/nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo dpkg -i nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo apt-get -y update && sudo apt-get install -y --no-install-recommends cuda-compiler-10-0 cuda-libraries-dev-10-0 cuda-cudart-dev-10-0 cuda-cublas-dev-10-0 cuda-curand-dev-10-0 && sudo apt-get install -y --no-install-recommends libcudnn7-dev"
+        - MATRIX_EVAL="CC=clang-6.0 && CXX=clang++-6.0 && wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/7fa2af80.pub && sudo dpkg -i cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1404/x86_64/nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo dpkg -i nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo apt-get -y update && sudo apt-get install -y --no-install-recommends cuda-compiler-10-0 cuda-libraries-dev-10-0 cuda-driver-dev-10-0 cuda-cudart-dev-10-0 cuda-cublas-dev-10-0 cuda-curand-dev-10-0 && sudo apt-get install -y --no-install-recommends libcudnn7-dev"
 
     - os: linux
       compiler: gcc
@@ -313,7 +313,7 @@ matrix:
             - libopencv-dev
       env:
         - CUDACXX=/usr/local/cuda-10.0/bin/nvcc
-        - MATRIX_EVAL="wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/7fa2af80.pub && sudo dpkg -i cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1404/x86_64/nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo dpkg -i nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo apt-get -y update && sudo apt-get install -y --no-install-recommends cuda-compiler-10-0 cuda-libraries-dev-10-0 cuda-cudart-dev-10-0 cuda-cublas-dev-10-0 cuda-curand-dev-10-0 && sudo apt-get install -y --no-install-recommends libcudnn7-dev"
+        - MATRIX_EVAL="wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/7fa2af80.pub && sudo dpkg -i cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1404/x86_64/nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo dpkg -i nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo apt-get -y update && sudo apt-get install -y --no-install-recommends cuda-compiler-10-0 cuda-libraries-dev-10-0 cuda-driver-dev-10-0 cuda-cudart-dev-10-0 cuda-cublas-dev-10-0 cuda-curand-dev-10-0 && sudo apt-get install -y --no-install-recommends libcudnn7-dev"
 
     - os: linux
       compiler: gcc
@@ -328,7 +328,7 @@ matrix:
             - g++-4.9
       env:
         - CUDACXX=/usr/local/cuda-10.0/bin/nvcc
-        - MATRIX_EVAL="CC=gcc-4.9 && CXX=g++-4.9 && wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/7fa2af80.pub && sudo dpkg -i cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1404/x86_64/nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo dpkg -i nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo apt-get -y update && sudo apt-get install -y --no-install-recommends cuda-compiler-10-0 cuda-libraries-dev-10-0 cuda-cudart-dev-10-0 cuda-cublas-dev-10-0 cuda-curand-dev-10-0 && sudo apt-get install -y --no-install-recommends libcudnn7-dev"
+        - MATRIX_EVAL="CC=gcc-4.9 && CXX=g++-4.9 && wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/7fa2af80.pub && sudo dpkg -i cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1404/x86_64/nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo dpkg -i nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo apt-get -y update && sudo apt-get install -y --no-install-recommends cuda-compiler-10-0 cuda-libraries-dev-10-0 cuda-driver-dev-10-0 cuda-cudart-dev-10-0 cuda-cublas-dev-10-0 cuda-curand-dev-10-0 && sudo apt-get install -y --no-install-recommends libcudnn7-dev"
 
     - os: linux
       compiler: gcc
@@ -343,7 +343,7 @@ matrix:
             - g++-5
       env:
         - CUDACXX=/usr/local/cuda-10.0/bin/nvcc
-        - MATRIX_EVAL="CC=gcc-5 && CXX=g++-5 && wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/7fa2af80.pub && sudo dpkg -i cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1404/x86_64/nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo dpkg -i nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo apt-get -y update && sudo apt-get install -y --no-install-recommends cuda-compiler-10-0 cuda-libraries-dev-10-0 cuda-cudart-dev-10-0 cuda-cublas-dev-10-0 cuda-curand-dev-10-0 && sudo apt-get install -y --no-install-recommends libcudnn7-dev"
+        - MATRIX_EVAL="CC=gcc-5 && CXX=g++-5 && wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/7fa2af80.pub && sudo dpkg -i cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1404/x86_64/nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo dpkg -i nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo apt-get -y update && sudo apt-get install -y --no-install-recommends cuda-compiler-10-0 cuda-libraries-dev-10-0 cuda-driver-dev-10-0 cuda-cudart-dev-10-0 cuda-cublas-dev-10-0 cuda-curand-dev-10-0 && sudo apt-get install -y --no-install-recommends libcudnn7-dev"
 
     - os: linux
       compiler: gcc
@@ -358,7 +358,7 @@ matrix:
             - libopencv-dev
       env:
         - CUDACXX=/usr/local/cuda-10.0/bin/nvcc
-        - MATRIX_EVAL="CC=gcc-6 && CXX=g++-6 && wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/7fa2af80.pub && sudo dpkg -i cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1404/x86_64/nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo dpkg -i nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo apt-get -y update && sudo apt-get install -y --no-install-recommends cuda-compiler-10-0 cuda-libraries-dev-10-0 cuda-cudart-dev-10-0 cuda-cublas-dev-10-0 cuda-curand-dev-10-0 && sudo apt-get install -y --no-install-recommends libcudnn7-dev"
+        - MATRIX_EVAL="CC=gcc-6 && CXX=g++-6 && wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/7fa2af80.pub && sudo dpkg -i cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1404/x86_64/nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo dpkg -i nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo apt-get -y update && sudo apt-get install -y --no-install-recommends cuda-compiler-10-0 cuda-libraries-dev-10-0 cuda-driver-dev-10-0 cuda-cudart-dev-10-0 cuda-cublas-dev-10-0 cuda-curand-dev-10-0 && sudo apt-get install -y --no-install-recommends libcudnn7-dev"
 
     - os: linux
       compiler: gcc
@@ -373,7 +373,7 @@ matrix:
             - g++-7
       env:
         - CUDACXX=/usr/local/cuda-10.0/bin/nvcc
-        - MATRIX_EVAL="CC=gcc-7 && CXX=g++-7 && wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/7fa2af80.pub && sudo dpkg -i cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1404/x86_64/nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo dpkg -i nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo apt-get -y update && sudo apt-get install -y --no-install-recommends cuda-compiler-10-0 cuda-libraries-dev-10-0 cuda-cudart-dev-10-0 cuda-cublas-dev-10-0 cuda-curand-dev-10-0 && sudo apt-get install -y --no-install-recommends libcudnn7-dev"
+        - MATRIX_EVAL="CC=gcc-7 && CXX=g++-7 && wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/7fa2af80.pub && sudo dpkg -i cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1404/x86_64/nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo dpkg -i nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo apt-get -y update && sudo apt-get install -y --no-install-recommends cuda-compiler-10-0 cuda-libraries-dev-10-0 cuda-driver-dev-10-0 cuda-cudart-dev-10-0 cuda-cublas-dev-10-0 cuda-curand-dev-10-0 && sudo apt-get install -y --no-install-recommends libcudnn7-dev"
 
     - os: linux
       compiler: gcc
@@ -388,7 +388,7 @@ matrix:
             - g++-8
       env:
         - CUDACXX=/usr/local/cuda-10.0/bin/nvcc
-        - MATRIX_EVAL="CC=gcc-8 && CXX=g++-8 && wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/7fa2af80.pub && sudo dpkg -i cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1404/x86_64/nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo dpkg -i nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo apt-get -y update && sudo apt-get install -y --no-install-recommends cuda-compiler-10-0 cuda-libraries-dev-10-0 cuda-cudart-dev-10-0 cuda-cublas-dev-10-0 cuda-curand-dev-10-0 && sudo apt-get install -y --no-install-recommends libcudnn7-dev"
+        - MATRIX_EVAL="CC=gcc-8 && CXX=g++-8 && wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/7fa2af80.pub && sudo dpkg -i cuda-repo-ubuntu1404_10.0.130-1_amd64.deb && wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1404/x86_64/nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo dpkg -i nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb && sudo apt-get -y update && sudo apt-get install -y --no-install-recommends cuda-compiler-10-0 cuda-libraries-dev-10-0 cuda-driver-dev-10-0 cuda-cudart-dev-10-0 cuda-cublas-dev-10-0 cuda-curand-dev-10-0 && sudo apt-get install -y --no-install-recommends libcudnn7-dev"
 
 before_install:
   - travis_retry eval "${MATRIX_EVAL}"
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 54609b19adc..5668b934cc3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -176,7 +176,7 @@ if(ENABLE_CUDA)
       add_definitions(-DZED_STEREO)
       message("ZED Camera support enabled")
     else()
-      message(WARNING "ZED SDK not found !")
+      message("ZED SDK not found !")
       set(ENABLE_ZED_CAMERA "FALSE" CACHE BOOL "Enable ZED Camera support" FORCE)
     endif()
   endif()
diff --git a/README.md b/README.md
index 62795108f2d..05cddf3853a 100644
--- a/README.md
+++ b/README.md
@@ -49,6 +49,10 @@ More details: http://pjreddie.com/darknet/yolo/
 * **GPU with CC >= 3.0**: https://en.wikipedia.org/wiki/CUDA#GPUs_supported
 * on Linux **GCC or Clang**, on Windows **MSVS 2017 (v15)** https://visualstudio.microsoft.com/thank-you-downloading-visual-studio/?sku=Community&rel=15#
 
+Compiling on **Windows** by using `Cmake-GUI` as on this [**IMAGE**](https://user-images.githubusercontent.com/4096485/55107892-6becf380-50e3-11e9-9a0a-556a943c429a.png): Configure -> Optional platform for generator (Set: x64) -> Finish -> Generate -> Open Project -> x64 & Release -> Build -> Build solution
+
+Compiling on **Linux** by using command `make` (or alternative way by using command: `cmake . && make` )
+
 #### Pre-trained models
 
 There are weights-file for different cfg-files (smaller size -> faster speed & lower accuracy:
@@ -69,7 +73,7 @@ You can get cfg-files by path: `darknet/cfg/`
 
 #### Yolo v3 in other frameworks
 
-* Convert `yolov3.weights`/`cfg` model to **TensorFlow**: by using [mystic123](https://github.com/mystic123/tensorflow-yolo-v3) or [jinyu121](https://github.com/jinyu121/DW2TF) projects
+* Convert `yolov3.weights`/`cfg` model to **TensorFlow**: by using [mystic123](https://github.com/mystic123/tensorflow-yolo-v3) or [jinyu121](https://github.com/jinyu121/DW2TF) projects, and [TensorFlow-lite](https://www.tensorflow.org/lite/guide/get_started#2_convert_the_model_format)
 * To use Yolo v3 model in **Intel OpenVINO** (Myriad X / USB Neural Compute Stick / Arria FPGA): read this [manual](https://software.intel.com/en-us/articles/OpenVINO-Using-TensorFlow#converting-a-darknet-yolo-model)
 * **OpenCV-dnn** is very fast DNN implementation on CPU (x86/ARM-Android), use `yolov3.weights`/`cfg` with: [C++ example](https://github.com/opencv/opencv/blob/8c25a8eb7b10fb50cda323ee6bec68aa1a9ce43c/samples/dnn/object_detection.cpp#L192-L221), [Python example](https://github.com/opencv/opencv/blob/8c25a8eb7b10fb50cda323ee6bec68aa1a9ce43c/samples/dnn/object_detection.py#L129-L150)
 
@@ -165,6 +169,10 @@ To run Darknet on Linux use examples from this article, just use `./darknet` ins
 
 ### How to compile on Windows (using `vcpkg`)
 
+If you have installed: MSVS 2015/2017, CUDA 10, cuDNN 7.x, OpenCV 3.x. Then compile Darknet by using `C:\Program Files\CMake\bin\cmake-gui.exe` as on this [**IMAGE**](https://user-images.githubusercontent.com/4096485/55107892-6becf380-50e3-11e9-9a0a-556a943c429a.png): Configure -> Optional platform for generator (Set: x64) -> Finish -> Generate -> Open Project -> x64 & Release -> Build -> Build solution
+
+Otherwise:
+
 1. Install or update Visual Studio to at least version 2017, making sure to have it fully patched (run again the installer if not sure to automatically update to latest version). If you need to install from scratch, download VS from here: [Visual Studio 2017 Community](http://visualstudio.com)
 
 2. Install CUDA and cuDNN
@@ -387,7 +395,7 @@ It will create `.txt`-file for each `.jpg`-image-file - in the same directory an
 
 9. After training is complete - get result `yolo-obj_final.weights` from path `build\darknet\x64\backup\`
 
- * After each 100 iterations you can stop and later start training from this point. For example, after 2000 iterations you can stop training, and later just copy `yolo-obj_2000.weights` from `build\darknet\x64\backup\` to `build\darknet\x64\` and start training using: `darknet.exe detector train data/obj.data yolo-obj.cfg yolo-obj_2000.weights`
+ * After each 100 iterations you can stop and later start training from this point. For example, after 2000 iterations you can stop training, and later just start training using: `darknet.exe detector train data/obj.data yolo-obj.cfg backup\yolo-obj_2000.weights`
 
     (in the original repository https://github.com/pjreddie/darknet the weights-file is saved only once every 10 000 iterations `if(iterations > 1000)`)
 
diff --git a/src/crnn_layer.c b/src/crnn_layer.c
index 59cac509d15..a4016dfb948 100644
--- a/src/crnn_layer.c
+++ b/src/crnn_layer.c
@@ -269,7 +269,7 @@ void forward_crnn_layer_gpu(layer l, network_state state)
     layer self_layer = *(l.self_layer);
     layer output_layer = *(l.output_layer);
 
-/*
+
 #ifdef CUDNN_HALF   // slow and bad for training
     if (!state.train && state.net.cudnn_half) {
         s.index = state.index;
@@ -278,7 +278,6 @@ void forward_crnn_layer_gpu(layer l, network_state state)
         cuda_convert_f32_to_f16(output_layer.weights_gpu, output_layer.c*output_layer.n*output_layer.size*output_layer.size, output_layer.weights_gpu16);
     }
 #endif  //CUDNN_HALF
-*/
 
 
     if (state.train) {
diff --git a/src/dark_cuda.c b/src/dark_cuda.c
index 5b57ea1d3dd..165dad5f284 100644
--- a/src/dark_cuda.c
+++ b/src/dark_cuda.c
@@ -25,6 +25,10 @@ int gpu_index = 0;
 #endif  // USE_CMAKE_LIBS
 #endif  // CUDNN
 
+#if defined(CUDNN_HALF) && !defined(CUDNN)
+#error "If you set CUDNN_HALF=1 then you must set CUDNN=1"
+#endif
+
 void cuda_set_device(int n)
 {
     gpu_index = n;
diff --git a/src/network_kernels.cu b/src/network_kernels.cu
index 298372df21b..7aabc149dd6 100644
--- a/src/network_kernels.cu
+++ b/src/network_kernels.cu
@@ -156,7 +156,7 @@ void forward_backward_network_gpu(network net, float *x, float *y)
     state.delta = 0;
     state.truth = *net.truth_gpu;
     state.train = 1;
-#ifdef CUDNN_HALF
+#if defined(CUDNN_HALF) && defined(CUDNN)
     int i;
     for (i = 0; i < net.n; ++i) {
         layer l = net.layers[i];