torch安装地址
按照官网步骤
git clone https://github.com/torch/distro.git ~/torch --recursive
cd ~/torch
bash install-deps
./install.sh依赖保证安装完毕以后
执行最后一步后出现错误如下：
/home/brian/torch/extra/cutorch/lib/THC/generic/THCTensorMathPairwise.cu(66): error: more than one operator "!=" matches these operands:
function "operator!=(const __half &, const __half &)"
function "operator!=(half, half)"
operand types are: half != half
1 error detected in the compilation of "/tmp/tmpxft_000078f9_00000000-6_THCTensorMathPairwise.cpp1.ii".
CMake Error at THC_generated_THCTensorMathPairwise.cu.o.cmake:267 (message):
Error generating file
/home/brian/torch/extra/cutorch/build/lib/THC/CMakeFiles/THC.dir//./THC_generated_THCTensorMathPairwise.cu.o
lib/THC/CMakeFiles/THC.dir/build.make:140: recipe for target 'lib/THC/CMakeFiles/THC.dir/THC_generated_THCTensorMathPairwise.cu.o' failed
make[2]: *** [lib/THC/CMakeFiles/THC.dir/THC_generated_THCTensorMathPairwise.cu.o] Error 1
make[2]: *** Waiting for unfinished jobs....
/home/brian/torch/extra/cutorch/lib/THC/generic/THCTensorMath.cu(393): error: more than one operator "==" matches these operands:
function "operator==(const __half &, const __half &)"
function "operator==(half, half)"
operand types are: half == half
/home/brian/torch/extra/cutorch/lib/THC/generic/THCTensorMath.cu(414): error: more than one operator "==" matches these operands:
function "operator==(const __half &, const __half &)"
function "operator==(half, half)"
operand types are: half == half
2 errors detected in the compilation of "/tmp/tmpxft_00007911_00000000-6_THCTensorMath.cpp1.ii".
CMake Error at THC_generated_THCTensorMath.cu.o.cmake:267 (message):
Error generating file
/home/brian/torch/extra/cutorch/build/lib/THC/CMakeFiles/THC.dir//./THC_generated_THCTensorMath.cu.o
lib/THC/CMakeFiles/THC.dir/build.make:112: recipe for target 'lib/THC/CMakeFiles/THC.dir/THC_generated_THCTensorMath.cu.o' failed
make[2]: *** [lib/THC/CMakeFiles/THC.dir/THC_generated_THCTensorMath.cu.o] Error 1
CMakeFiles/Makefile2:172: recipe for target 'lib/THC/CMakeFiles/THC.dir/all' failed
make[1]: *** [lib/THC/CMakeFiles/THC.dir/all] Error 2
Makefile:127: recipe for target 'all' failed
make: *** [all] Error 2
此时尝试采用如下命令进行安装：
sudo su
export TORCH_NVCC_FLAGS="-D__CUDA_NO_HALF_OPERATORS__"
bash install-deps
yes | bash ./install.sh按照此方法，对我来讲是有效的，已经成功安装torch
注：如果上述方法还不行，那么建议重新安装ubuntu系统，安装ubuntu16版本的系统，兼容性可能更好。