[petsc-users] Kokkos error at NERSC

[Mark Adams]

This runs on Summit with Cuda-10. This error was at NERSc with Cuda-11

On Sat, Apr 24, 2021 at 3:02 PM Mark Adams <mfadams at lbl.gov> wrote:

> Thanks,
> I now see this. I recall this error being posted recently ...
>
> nvcc warning : The 'compute_35', 'compute_37', 'compute_50', 'sm_35',
> 'sm_37' and 'sm_50' architectures are deprecated, and may be removed in a
> future release (Use -Wno-deprecated-gpu-targets to suppress warning).
> /global/homes/m/madams/petsc/arch-cori-gpu-opt-kokkos-gcc/include/Cuda/Kokkos_Cuda_Half.hpp(220):
> error: more than one conversion function from
> "Kokkos::Experimental::half_t::impl_type" to a built-in type applies:
>             function "__half::operator float() const"
>             function "__half::operator short() const"
>             function "__half::operator unsigned short() const"
>             function "__half::operator int() const"
>             function "__half::operator unsigned int() const"
>             function "__half::operator long long() const"
>             function "__half::operator unsigned long long() const"
>             function "__half::operator __nv_bool() const"
>
>
> On Sat, Apr 24, 2021 at 1:09 PM Barry Smith <bsmith at petsc.dev> wrote:
>
>>
>>    In kokkos-kernels.py comment out
>>
>> #self.includes         = ['KokkosBlas.hpp','KokkosSparse_CrsMatrix.hpp']
>>
>>
>>    I don't know why this didn't hit has a long long time ago.
>>
>>
>>
>> On Apr 24, 2021, at 8:21 AM, Mark Adams <mfadams at lbl.gov> wrote:
>>
>> I don't see this in kokkos-kernels.py.
>> I seem to get past Kokkos but it does in KK.
>>
>> On Fri, Apr 23, 2021 at 4:41 PM Junchao Zhang <junchao.zhang at gmail.com>
>> wrote:
>>
>>> Hi, Mark,
>>>   It is because in configure check of CUDA, we compile conftest.cc
>>> (which includes kokkos headers) with mpicxx. Kokkos complains it was
>>> configured with cuda but now is not compiled with cudac.
>>>
>>>   A workaround is in kokkos.py and kokkos-kernels.py, comment out lines
>>> as follows, to disable the check.
>>> #self.includes = ['Kokkos_Macros.hpp']
>>>
>>> --Junchao Zhang
>>>
>>>
>>> On Fri, Apr 23, 2021 at 1:59 PM Mark Adams <mfadams at lbl.gov> wrote:
>>>
>>>> I had Kokkos working here but I seemed to have broken it:
>>>>
>>>> global/homes/m/madams/petsc/arch-cori-gpu-opt-kokkos-gcc/include/setup/Kokkos_Setup_Cuda.hpp:54:2:
>>>> error: #error "KOKKOS_ENABLE_CUDA defined but the compiler is not defining
>>>> the __CUDACC__ macro as expected"
>>>>  #error \
>>>>
>>>> Any ideas?
>>>>
>>> <configure.log>
>>
>>
>>
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