error: identifier "__half_as_ushort" is undefined

[xinario]

Hi, I tried to build from source but the following errors occurred.

[ 2%] Building NVCC (Device) object CMakeFiles/THC.dir/THC_generated_THCTensorTopK.cu.o
[ 2%] Building NVCC (Device) object CMakeFiles/THC.dir/THC_generated_THCSortUtils.cu.o
[ 3%] Building NVCC (Device) object CMakeFiles/THC.dir/THC_generated_THCTensorTypeUtils.cu.o
[ 4%] Building NVCC (Device) object CMakeFiles/THC.dir/THC_generated_THCTensorMode.cu.o
[ 6%] Building NVCC (Device) object CMakeFiles/THC.dir/generated/THC_generated_THCTensorSortByte.cu.o
[ 7%] Building NVCC (Device) object CMakeFiles/THC.dir/generated/THC_generated_THCTensorMathCompareTByte.cu.o
/home/xin_cyber/Documents/pytorch/torch/lib/THC/THCTensorTopK.cuh(122): error: identifier "__half_as_ushort" is undefined

/home/xin_cyber/Documents/pytorch/torch/lib/THC/THCTensorTopK.cuh(134): error: identifier "__ushort_as_half" is undefined

2 errors detected in the compilation of "/tmp/tmpxft_00001796_00000000-7_THCTensorTopK.cpp1.ii".
CMake Error at THC_generated_THCTensorTopK.cu.o.cmake:267 (message):
Error generating file
/home/xin_cyber/Documents/pytorch/torch/lib/build/THC/CMakeFiles/THC.dir//./THC_generated_THCTensorTopK.cu.o

CMakeFiles/THC.dir/build.make:9193: recipe for target 'CMakeFiles/THC.dir/THC_generated_THCTensorTopK.cu.o' failed
make[2]: *** [CMakeFiles/THC.dir/THC_generated_THCTensorTopK.cu.o] Error 1
make[2]: *** Waiting for unfinished jobs....

I'm using cuda V8.0.61

[xinario]

It tends out to be my own installation problem. cuda_fp16.h is not inside /usr/local/cuda/include but I've found it in /usr/local/cuda/targets/x86_64-linux/include. Maybe because I used to have an older version of cuda installed.

Anyway, I completely removed cuda and reinstalled it. All the header files are now in place and built with no problem.