add automatic building script

.travis.yml

@@ -0,0 +1,49 @@
+language: cpp
+
+sudo: enabled
+
+compiler:
+  - gcc
+
+matrix:
+  include:
+    - name: CUDA 8
+      env:
+      - CUDA=8.0.61-1
+      - CUDA_SHORT=8.0
+      - UBUNTU_VERSION=ubuntu1604
+      dist: xenial
+    - name: CUDA 9
+      env:
+      - CUDA=9.2.148-1
+      - CUDA_SHORT=9.2
+      - UBUNTU_VERSION=ubuntu1604
+      dist: xenial
+    - name: CUDA 10
+      env:
+      - CUDA=10.1.105-1
+      - CUDA_SHORT=10.1
+      - UBUNTU_VERSION=ubuntu1804
+      dist: bionic
+
+before_install:
+  - INSTALLER=cuda-repo-${UBUNTU_VERSION}_${CUDA}_amd64.deb
+  - wget http://developer.download.nvidia.com/compute/cuda/repos/${UBUNTU_VERSION}/x86_64/${INSTALLER}
+  - sudo dpkg -i ${INSTALLER}
+  - wget https://developer.download.nvidia.com/compute/cuda/repos/${UBUNTU_VERSION}/x86_64/7fa2af80.pub
+  - sudo apt-key add 7fa2af80.pub
+  - sudo apt update -qq
+  - sudo apt install -y cuda-core-${CUDA_SHORT/./-} cuda-cudart-dev-${CUDA_SHORT/./-} cuda-cufft-dev-${CUDA_SHORT/./-}
+  - sudo apt clean
+  - CUDA_HOME=/usr/local/cuda-${CUDA_SHORT}
+  - LD_LIBRARY_PATH=${CUDA_HOME}/lib64:${LD_LIBRARY_PATH}
+  - PATH=${CUDA_HOME}/bin:${PATH}:${PWD}
+
+before_script:
+    - mkdir src/build
+    - cd src/build
+    - cmake ..
+
+script:
+    - cd src/build
+    - make