Building fails with GCC error

[legraphista]

.....


    csrc/mlp.cpp:147:48: error: expected primary-expression before ‘)’ token
             grad_o.contiguous().data_ptr<scalar_t>(),
                                                    ^
    /opt/conda/lib/python3.6/site-packages/torch/include/ATen/Dispatch.h:10:12: note: in definition of macro ‘AT_PRIVATE_CASE_TYPE’
         return __VA_ARGS__();                          \
                ^
    csrc/mlp.cpp:123:3: note: in expansion of macro ‘AT_DISPATCH_FLOATING_TYPES_AND_HALF’
       AT_DISPATCH_FLOATING_TYPES_AND_HALF(inputs[0].type(), "mlp_backward", [&] {
       ^
    csrc/mlp.cpp:148:43: error: expected primary-expression before ‘>’ token
             fprop_outputs[1].data_ptr<scalar_t>(),
                                               ^
    /opt/conda/lib/python3.6/site-packages/torch/include/ATen/Dispatch.h:10:12: note: in definition of macro ‘AT_PRIVATE_CASE_TYPE’
         return __VA_ARGS__();                          \
                ^
    csrc/mlp.cpp:123:3: note: in expansion of macro ‘AT_DISPATCH_FLOATING_TYPES_AND_HALF’
       AT_DISPATCH_FLOATING_TYPES_AND_HALF(inputs[0].type(), "mlp_backward", [&] {
       ^
    csrc/mlp.cpp:148:45: error: expected primary-expression before ‘)’ token
             fprop_outputs[1].data_ptr<scalar_t>(),
                                                 ^
    /opt/conda/lib/python3.6/site-packages/torch/include/ATen/Dispatch.h:10:12: note: in definition of macro ‘AT_PRIVATE_CASE_TYPE’
         return __VA_ARGS__();                          \
                ^
    csrc/mlp.cpp:123:3: note: in expansion of macro ‘AT_DISPATCH_FLOATING_TYPES_AND_HALF’
       AT_DISPATCH_FLOATING_TYPES_AND_HALF(inputs[0].type(), "mlp_backward", [&] {
       ^
    csrc/mlp.cpp:149:37: error: expected primary-expression before ‘>’ token
             work_space.data_ptr<scalar_t>(),
                                         ^
    /opt/conda/lib/python3.6/site-packages/torch/include/ATen/Dispatch.h:10:12: note: in definition of macro ‘AT_PRIVATE_CASE_TYPE’
         return __VA_ARGS__();                          \
                ^
    csrc/mlp.cpp:123:3: note: in expansion of macro ‘AT_DISPATCH_FLOATING_TYPES_AND_HALF’
       AT_DISPATCH_FLOATING_TYPES_AND_HALF(inputs[0].type(), "mlp_backward", [&] {
       ^
    csrc/mlp.cpp:149:39: error: expected primary-expression before ‘)’ token
             work_space.data_ptr<scalar_t>(),
                                           ^
    /opt/conda/lib/python3.6/site-packages/torch/include/ATen/Dispatch.h:10:12: note: in definition of macro ‘AT_PRIVATE_CASE_TYPE’
         return __VA_ARGS__();                          \
                ^
    csrc/mlp.cpp:123:3: note: in expansion of macro ‘AT_DISPATCH_FLOATING_TYPES_AND_HALF’
       AT_DISPATCH_FLOATING_TYPES_AND_HALF(inputs[0].type(), "mlp_backward", [&] {
       ^
    error: command 'gcc' failed with exit status 1

python -V:

Python 3.6.8 :: Anaconda, Inc.

gcc -v:

Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/5/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 5.4.0-6ubuntu1~16.04.11' --with-bugurl=file:///usr/share/doc/gcc-5/README.Bugs --enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-5 --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-5-amd64/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-5-amd64 --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-5-amd64 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-objc-gc --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.11) 

using docker image: nvcr.io/nvidia/pytorch:19.04-py3 as detailed in the installation section of https://github.com/NVIDIA/unsupervised-video-interpolation

[super233]

I encountered the same error, did you have solved it?

[5Yesterday]

I meet it too, request answer.

[super233]

Have a look at #802, it's useful for me. @5Yesterday @legraphista

[5Yesterday]

Thanks, it works.

[hhaoyan]

The solution in #802 doesn't work for me because I had to use bug fixes from latest commits.

I found this issue can be solved by commenting the sections in setup.py:

#        ext_modules.append(
#            CUDAExtension(name='mlp_cuda',
#                          sources=['csrc/mlp.cpp',
#                                   'csrc/mlp_cuda.cu'],
#                          extra_compile_args={'cxx': ['-O3'] + version_dependent_macros,
#                                              'nvcc':['-O3'] + version_dependent_macros}))

I think the problem is due to the use of Tensor::data_ptr<typename>() in csrc/mlp.cpp. This method is not supported in at least pytorch 1.2.

@FDecaYed Can this be solved, otherwise it's not officially supporting pytorch 1.2 as stated in project readme?

[FDecaYed]

@hhaoyan Thanks for looking into the problem.
@ptrblck Shall we update readme for minimal pytorch version requirement?

[ptrblck]

Yes, we should update the readme to indicate the working versions.

[rosrad]

can we help to fix this issue.