[CMake] CMake with two C++ compilers

[Robert Maynard]

Currently we don't provide the compiler id and version for the CUDA
host compiler.

If you are interested in having this information can you please create
an issue on the cmake gitlab: https://gitlab.kitware.com/cmake/cmake

On Fri, May 10, 2019 at 12:09 PM JR Cary <cary at txcorp.com> wrote:
>
> Thanks, Chuck.
>
> I was not clear on my question, which is:  When I specify the two compilers, how
> do I get, e.g., CMAKE_CUDA_HOST_COMPILER_ID and CMAKE_CUDA_HOST_COMPILER_VERSION?
>
> I need these to determine consistency between the CUDA version and the host compiler
> version, so that I can disable CUDA when these are incmpatible.
>
> Thanks...John
>
> On 5/10/19 9:17 AM, Chuck Atkins wrote:
>
> Hi John,
> Two different compilers in the same project for the same language is messy, but in your case it's directly supproted as a special case for cuda using the CMAKE_CUDA_HOST_COMPILER CMake variable or the CUDAHOSTCXX environment variable.
>
> ----------
> Chuck Atkins
> Staff R&D Engineer, Scientific Computing
> Kitware, Inc.
>
>
> On Wed, May 8, 2019 at 7:27 AM JR Cary <cary at txcorp.com> wrote:
>>
>> Is there a standard way to deal with 2 C++ compilers?  Getting both
>> there versions, etc.?
>>
>> I need one compiler for compiling ordinary C++ code and a different
>> one to use as the host compiler for CUDA.
>>
>> Thx......John Cary
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