CMake example broken with CUDA backend

[AdamSimpson]

The CMake example no longer appears to build with the CUDA backend after the recent merge of development into master:

$ cd example/cmake_build
$ mkdir build && cd build
$ cmake -DKOKKOS_ENABLE_CUDA=ON -DCMAKE_CXX_COMPILER=/ccs/home/atj/kokkos/bin/nvcc_wrapper ..
-- The CXX compiler identification is GNU 6.4.0
-- The C compiler identification is GNU 4.8.5
-- The Fortran compiler identification is GNU 4.8.5
-- Check for working CXX compiler: /ccs/home/atj/kokkos/bin/nvcc_wrapper
-- Check for working CXX compiler: /ccs/home/atj/kokkos/bin/nvcc_wrapper -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - failed
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working Fortran compiler: /usr/bin/gfortran
-- Check for working Fortran compiler: /usr/bin/gfortran  -- works
-- Detecting Fortran compiler ABI info
-- Detecting Fortran compiler ABI info - done
-- Checking whether /usr/bin/gfortran supports Fortran 90
-- Checking whether /usr/bin/gfortran supports Fortran 90 -- yes
-- 
-- ****************** Kokkos Settings ******************
-- Execution Spaces
--   Device Parallel: Cuda
--     Host Parallel: None
--       Host Serial: Serial
-- 
-- Architectures:
--     None
-- 
-- Enabled options
--   KOKKOS_ENABLE_SERIAL
--   KOKKOS_ENABLE_CUDA
--   KOKKOS_ENABLE_LIBRT
--   KOKKOS_ENABLE_PROFILING
--   KOKKOS_ENABLE_DEPRECATED_CODE
-- 
-- Final kokkos settings variable:
--   env;KOKKOS_SRC_PATH=/ccs/home/atj/kokkos;KOKKOS_PATH=/ccs/home/atj/kokkos;KOKKOS_INSTALL_PATH=/usr/local;KOKKOS_ARCH=None;KOKKOS_DEVICES=Cuda,Serial;KOKKOS_DEBUG=no;KOKKOS_OPTIONS=disable_dualview_modify_check;KOKKOS_USE_TPLS=librt;CUDA_PATH=;PATH="/bin:/sw/sources/lsf-tools/summit/bin:/autofs/nccs-svm1_sw/summit/.swci/0-core/opt/spack/20171006/linux-rhel7-ppc64le/gcc-4.8.5/cmake-3.9.2-lnpnk356fyio3b6rq5bdhr2djjirtsxk/bin:/sw/summit/cuda/9.1.85/bin:/autofs/nccs-svm1_sw/summit/.swci/1-compute/opt/spack/20171006/linux-rhel7-ppc64le/gcc-6.4.0/spectrum-mpi-10.2.0.0-20180110-ly2nyvslpq5p6o5ndkhrcagfhvdg3a3q/bin:/sw/summit/gcc/6.4.0/bin:/ccs/home/atj/.local/bin:/sw/sources/hpss/bin:/opt/ibm/spectrumcomputing/lsf/10.1/linux3.10-glibc2.17-ppc64le-csm/etc:/opt/ibm/spectrumcomputing/lsf/10.1/linux3.10-glibc2.17-ppc64le-csm/bin:/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/opt/ibm/flightlog/bin:/opt/ibutils/bin:/opt/ibm/spectrum_mpi/jsm_pmix/bin:/opt/puppetlabs/bin:/usr/lpp/mmfs/bin"
-- *****************************************************
-- 
-- Submodule build
-- The project name is: Kokkos
CMake Error: The following variables are used in this project, but they are set to NOTFOUND.
Please set them or make sure they are set and tested correctly in the CMake files:
LIB_cudart
    linked by target "kokkos" in directory /ccs/home/atj/kokkos

-- Configuring incomplete, errors occurred!
See also "/ccs/home/atj/kokkos/example/cmake_build/build/CMakeFiles/CMakeOutput.log".
See also "/ccs/home/atj/kokkos/example/cmake_build/build/CMakeFiles/CMakeError.log".

I haven't dug in too deeply yet but it's not immediately clear to me what's causing this.

The CMake backend is also missing support for Volta although that's a much easier fix I believe.

[crtrott]

Hm curious. I look into this.

[crtrott]

I have replicated this. One issue obviously is that we do not have a standalone test running doing the cmake test with CUDA enabled. We do have cmake testing going on but not with CUDA. We also test CUDA with cmake/tribits during integration but not with CMake standalone we need to fix this.
I am tempted to fix this directly and push this both into Master and Trilinos to fix the issue here.

[crtrott]

Interestingly enough it still works on my workstation ...

[ibaned]

@AdamSimpson the develop branch should have fixed this, so if you'd like to test that and let us know if it works, that would be great.

[AdamSimpson]

Awesome! Everything seems to be working in the example as well as our actual application, thanks guys!