Error in installing Torch (CUDA 9, Linux Mint 17 Xfce)

[Ais]

Hi!

I'm building from Linux Ming 17 Xfce 64bit with the newly installed CUDA 9.

I'm getting this error whenever I follow the tutorial I got from here during ./install.sh - http://torch.ch/docs/getting-started.html

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Building on 8 cores
-- Found Torch7 in /home/ayumin/torch/install
-- Removing -DNDEBUG from compile flags
-- TH_LIBRARIES: TH
-- MAGMA not found. Compiling without MAGMA support
-- Autodetected CUDA architecture(s): 3.0
-- got cuda version 9.0
-- Found CUDA with FP16 support, compiling with torch.CudaHalfTensor
-- CUDA_NVCC_FLAGS: -gencode;arch=compute_30,code=sm_30;-DCUDA_HAS_FP16=1
-- THC_SO_VERSION: 0
-- Configuring done
-- Generating done
-- Build files have been written to: /home/ayumin/torch/extra/cutorch/build
[  1%] Building NVCC (Device) object lib/THC/CMakeFiles/THC.dir/THC_generated_THCTensorMathPairwise.cu.o
[  2%] Building NVCC (Device) object lib/THC/CMakeFiles/THC.dir/THC_generated_THCTensorMath.cu.o
[  3%] Building NVCC (Device) object lib/THC/CMakeFiles/THC.dir/THC_generated_THCTensorScatterGather.cu.o
[  4%] Building NVCC (Device) object lib/THC/CMakeFiles/THC.dir/THC_generated_THCTensorMode.cu.o
[  5%] Building NVCC (Device) object lib/THC/CMakeFiles/THC.dir/THC_generated_THCTensorSort.cu.o
[  6%] Building NVCC (Device) object lib/THC/CMakeFiles/THC.dir/THC_generated_THCTensorTopK.cu.o
[  7%] Building NVCC (Device) object lib/THC/CMakeFiles/THC.dir/THC_generated_THCTensorTypeUtils.cu.o
[  8%] Building NVCC (Device) object lib/THC/CMakeFiles/THC.dir/THC_generated_THCSortUtils.cu.o
[ 10%] Building NVCC (Device) object lib/THC/CMakeFiles/THC.dir/generated/THC_generated_THCTensorSortByte.cu.o
[ 11%] Building NVCC (Device) object lib/THC/CMakeFiles/THC.dir/generated/THC_generated_THCTensorMathCompareTByte.cu.o
[ 12%] Building NVCC (Device) object lib/THC/CMakeFiles/THC.dir/generated/THC_generated_THCTensorMathPointwiseByte.cu.o
/home/ayumin/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/ayumin/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_000076aa_00000000-4_THCTensorMath.cpp4.ii".
CMake Error at THC_generated_THCTensorMath.cu.o.cmake:267 (message):
  Error generating file
  /home/ayumin/torch/extra/cutorch/build/lib/THC/CMakeFiles/THC.dir//./THC_generated_THCTensorMath.cu.o


lib/THC/CMakeFiles/THC.dir/build.make:2735: 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
make[2]: *** Waiting for unfinished jobs....
/home/ayumin/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_00007679_00000000-4_THCTensorMathPairwise.cpp4.ii".
CMake Error at THC_generated_THCTensorMathPairwise.cu.o.cmake:267 (message):
  Error generating file
  /home/ayumin/torch/extra/cutorch/build/lib/THC/CMakeFiles/THC.dir//./THC_generated_THCTensorMathPairwise.cu.o


lib/THC/CMakeFiles/THC.dir/build.make:4216: 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
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

Error: Build error: Failed building

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Any help how to fix this is greatly appreciated.

Cheers.

[Ais]

Fix'd the problem by downgrading to CUDA 8.0

Also, I was wrong. I was in a Linux Mint 18 machine.

[Jerzy....@sbg.com.pl]

On Github issues ( https://github.com/torch/distro/issues/239 ) page pkuwwt posted fix that worked for me (CUDA 9.1, Linux Mint 18, g++/gcc 6.3, card GF 1050):

./clean.sh
export TORCH_NVCC_FLAGS="-D__CUDA_NO_HALF_OPERATORS__"
./install.sh