problem：th demo.lua -img ./deepmask/data/testImage.jpg

[Jimjipeng]

/home/jp/torch/install/bin/luajit: /home/jp/torch/install/share/lua/5.1/trepl/init.lua:389: /home/jp/torch/install/share/lua/5.1/trepl/init.lua:389: module 'cunn' not found:No LuaRocks module found for cunn
no field package.preload['cunn']
no file '/home/jp/.luarocks/share/lua/5.1/cunn.lua'
no file '/home/jp/.luarocks/share/lua/5.1/cunn/init.lua'
no file '/home/jp/torch/install/share/lua/5.1/cunn.lua'
no file '/home/jp/torch/install/share/lua/5.1/cunn/init.lua'
no file './cunn.lua'
no file '/home/jp/torch/install/share/luajit-2.1.0-beta1/cunn.lua'
no file '/usr/local/share/lua/5.1/cunn.lua'
no file '/usr/local/share/lua/5.1/cunn/init.lua'
no file '/home/jp/.luarocks/lib/lua/5.1/cunn.so'
no file '/home/jp/torch/install/lib/lua/5.1/cunn.so'
no file '/home/jp/torch/install/lib/cunn.so'
no file './cunn.so'
no file '/usr/local/lib/lua/5.1/cunn.so'
no file '/usr/local/lib/lua/5.1/loadall.so'
stack traceback:
[C]: in function 'error'
/home/jp/torch/install/share/lua/5.1/trepl/init.lua:389: in function 'require'
demo.lua:11: in main chunk
[C]: in function 'dofile'
...e/jp/torch/install/lib/luarocks/rocks/trepl/scm-1/bin/th:150: in main chunk
[C]: at 0x00405d50

[samson-wang]

Did you install cunn?
try luarocks install cunn

[Jimjipeng]

try luarocks install cunn
【result】
CMake Error at /usr/share/cmake-3.5/Modules/FindCUDA.cmake:617 (message):
Specify CUDA_TOOLKIT_ROOT_DIR
Call Stack (most recent call first):
CMakeLists.txt:7 (FIND_PACKAGE)

[samson-wang]

It said Specify CUDA_TOOLKIT_ROOT_DIR
try
CUDA_TOOLKIT_ROOT_DIR=/path/to/cuda/root luarocks install cunn