llvm dev - Aug 2017 - cannot build CUDA support with llvm-trunk

Hi,

I try to build the latest version of llvm-trunk with Cmake (gcc-5.3.0
is necessary for CUDA) on my "SUSE Linux Enterprise Server 12.2
(x86_64)".
Unfortunately, "libomptarget" for CUDA will not be built with that
version. I use the same configuration command as before.


cmake -DCMAKE_INSTALL_PREFIX:PATH=/usr/local/${LLVM_VERSION} \
   -DCMAKE_BUILD_TYPE:STRING="Release" \
   -DLLVM_PARALLEL_COMPILE_JOBS:STRING="4" \
   -DLLVM_PARALLEL_LINK_JOBS:STRING="4" \
   -DCMAKE_C_COMPILER:STRING="${DIRPREFIX_PROG}/${GCCDIR}/bin/gcc" \
   -DCMAKE_C_FLAGS:STRING="-m64 -I/usr/local/valgrind/include" \
   -DCMAKE_CXX_COMPILER:STRING="${DIRPREFIX_PROG}/${GCCDIR}/bin/g++" \
   -DCMAKE_CXX_FLAGS:STRING="-m64 -I/usr/local/valgrind/include" \
   -DCMAKE_EXE_LINKER_FLAGS:STRING="-m64" \
   -DLLVM_LIBDIR_SUFFIX:STRING="64" \
   -DLLVM_POLLY_LINK_INTO_TOOLS:BOOL=ON \
 
-DLIBOMPTARGET_DEP_LIBELF_INCLUDE_DIR:STRING="/usr/local/elfutils-0.169/include"
\
 
-DLIBOMPTARGET_DEP_LIBELF_LIBRARIES:STRING="/usr/local/elfutils-0.169/lib64/libelf.so"
\
   -DLIBOMPTARGET_DEP_LIBFFI_INCLUDE_DIR:STRING="/usr/include" \
   -DLIBOMPTARGET_DEP_LIBFFI_LIBRARIES:STRING="/usr/lib64/libffi.so" \
   -DCUDA_INCLUDE_DIRS:STRING="/usr/local/cuda/include" \
   -DCUDA_LIBRARIES:STRING="/usr/local/cuda/lib64/libcudart.so" \
   -DBUILD_SHARED_LIBS:BOOL=ON \
   ../llvm \
   |& tee log.cmake


Now I get the following output.

loki build 613 tail -13 log.cmake
-- Generating done
CMake Warning:
   Manually-specified variables were not used by the project:

     CUDA_INCLUDE_DIRS
     CUDA_LIBRARIES
     LIBOMPTARGET_DEP_LIBELF_INCLUDE_DIR
     LIBOMPTARGET_DEP_LIBELF_LIBRARIES
     LIBOMPTARGET_DEP_LIBFFI_INCLUDE_DIR
     LIBOMPTARGET_DEP_LIBFFI_LIBRARIES


-- Build files have been written to: /export2/src/llvm-trunk/build
loki build 614


Do you have any ideas why I cannot build CUDA support any longer? Is it
necessary to change my configuration command to build CUDA support?
Thank you very much for any help in advance.


Kind regards

Siegmar

Hello,

Are you sure it won't build with CUDA support? The logs you linked only say
it does not use some of the variables you defined, not that it failed to
configure the project or build it. It could be due to CMake (since 3.8)
supporting CUDA as a primary language and no longer needing to use
`find_package(CUDA)`. The includes and path to the libraries should be
automatically added, so they no longer use those variables you were setting
manually.

I don't have a computer at hand to check that this is indeed the issue,
though.

See https://cmake.org/cmake/help/v3.8/release/3.8.html#cuda and
https://cmake.org/cmake/help/v3.8/search.html?q=CUDA&check_keywords=yes&area=default
for more details about the new support.

Pierre

> On 4 Aug 2017, at 13:11, Siegmar Gross via llvm-dev <llvm-dev at
lists.llvm.org> wrote:
> 
> Hi,
> 
> I try to build the latest version of llvm-trunk with Cmake (gcc-5.3.0
> is necessary for CUDA) on my "SUSE Linux Enterprise Server 12.2
(x86_64)".
> Unfortunately, "libomptarget" for CUDA will not be built with
that
> version. I use the same configuration command as before.
> 
> 
> cmake -DCMAKE_INSTALL_PREFIX:PATH=/usr/local/${LLVM_VERSION} \
>  -DCMAKE_BUILD_TYPE:STRING="Release" \
>  -DLLVM_PARALLEL_COMPILE_JOBS:STRING="4" \
>  -DLLVM_PARALLEL_LINK_JOBS:STRING="4" \
>  -DCMAKE_C_COMPILER:STRING="${DIRPREFIX_PROG}/${GCCDIR}/bin/gcc"
\
>  -DCMAKE_C_FLAGS:STRING="-m64 -I/usr/local/valgrind/include" \
> 
-DCMAKE_CXX_COMPILER:STRING="${DIRPREFIX_PROG}/${GCCDIR}/bin/g++" \
>  -DCMAKE_CXX_FLAGS:STRING="-m64 -I/usr/local/valgrind/include" \
>  -DCMAKE_EXE_LINKER_FLAGS:STRING="-m64" \
>  -DLLVM_LIBDIR_SUFFIX:STRING="64" \
>  -DLLVM_POLLY_LINK_INTO_TOOLS:BOOL=ON \
>
-DLIBOMPTARGET_DEP_LIBELF_INCLUDE_DIR:STRING="/usr/local/elfutils-0.169/include"
\
>
-DLIBOMPTARGET_DEP_LIBELF_LIBRARIES:STRING="/usr/local/elfutils-0.169/lib64/libelf.so"
\
>  -DLIBOMPTARGET_DEP_LIBFFI_INCLUDE_DIR:STRING="/usr/include" \
> 
-DLIBOMPTARGET_DEP_LIBFFI_LIBRARIES:STRING="/usr/lib64/libffi.so" \
>  -DCUDA_INCLUDE_DIRS:STRING="/usr/local/cuda/include" \
>  -DCUDA_LIBRARIES:STRING="/usr/local/cuda/lib64/libcudart.so" \
>  -DBUILD_SHARED_LIBS:BOOL=ON \
>  ../llvm \
>  |& tee log.cmake
> 
> 
> Now I get the following output.
> 
> loki build 613 tail -13 log.cmake
> -- Generating done
> CMake Warning:
>  Manually-specified variables were not used by the project:
> 
>    CUDA_INCLUDE_DIRS
>    CUDA_LIBRARIES
>    LIBOMPTARGET_DEP_LIBELF_INCLUDE_DIR
>    LIBOMPTARGET_DEP_LIBELF_LIBRARIES
>    LIBOMPTARGET_DEP_LIBFFI_INCLUDE_DIR
>    LIBOMPTARGET_DEP_LIBFFI_LIBRARIES
> 
> 
> -- Build files have been written to: /export2/src/llvm-trunk/build
> loki build 614
> 
> 
> Do you have any ideas why I cannot build CUDA support any longer? Is it
> necessary to change my configuration command to build CUDA support?
> Thank you very much for any help in advance.
> 
> 
> Kind regards
> 
> Siegmar
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
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