Warning ` __host__ __device__` about the destructor of a `Kokkos::View`

[tpadioleau]

When compiling the tests with Kokkos 4.5.1, cuda 12 and gcc 12 we get the following warnings

Building CXX object tests/CMakeFiles/ddc_tests.dir/storage_discrete_domain.cpp.o
/home/TP026749/ddc/vendor/kokkos/core/src/View/Kokkos_ViewLegacy.hpp(357): warning #20011-D: calling a __host__ function("Kokkos::Impl::ViewTracker< ::Kokkos::View< ::ddc::DiscreteElement< ::_NV_ANON_NAMESPACE::DDimX >  *,  ::Kokkos::CudaUVMSpace > > ::~ViewTracker()") from a __host__ __device__ function("Kokkos::View< ::ddc::DiscreteElement< ::_NV_ANON_NAMESPACE::DDimX >  *,  ::Kokkos::CudaUVMSpace > ::~View") is not allowed

Remark: The warnings can be suppressed with "-diag-suppress <warning-number>"

/home/TP026749/ddc/vendor/kokkos/core/src/View/Kokkos_ViewLegacy.hpp(357): warning #20011-D: calling a __host__ function("Kokkos::Impl::ViewTracker< ::Kokkos::View< ::ddc::DiscreteElement< ::_NV_ANON_NAMESPACE::DDimY >  *,  ::Kokkos::CudaUVMSpace > > ::~ViewTracker()") from a __host__ __device__ function("Kokkos::View< ::ddc::DiscreteElement< ::_NV_ANON_NAMESPACE::DDimY >  *,  ::Kokkos::CudaUVMSpace > ::~View") is not allowed

Note that we need Kokkos inline to get the warning. It does not seem to be reported if Kokkos is installed.

[tpadioleau]

We need to make a reproducer and ask Kokkos team what happens.