Re: [CMake] CMake with two C++ compilers

[Robert Maynard via CMake]

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  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  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
>> --
>>
>> Powered by www.kitware.com
>>
>> Please keep messages on-topic and check the CMake FAQ at: 
>> http://www.cmake.org/Wiki/CMake_FAQ
>>
>> Kitware offers various services to support the CMake community. For more 
>> information on each offering, please visit:
>>
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>>
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>
>
> --
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Re: [CMake] CMake with two C++ compilers

[JR Cary]

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 > 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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Re: [CMake] CMake with two C++ compilers

[Chuck Atkins via CMake]

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  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
> --
>
> Powered by www.kitware.com
>
> Please keep messages on-topic and check the CMake FAQ at:
> http://www.cmake.org/Wiki/CMake_FAQ
>
> Kitware offers various services to support the CMake community. For more
> information on each offering, please visit:
>
> CMake Support: http://cmake.org/cmake/help/support.html
> CMake Consulting: http://cmake.org/cmake/help/consulting.html
> CMake Training Courses: http://cmake.org/cmake/help/training.html
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Follow this link to subscribe/unsubscribe:
> https://cmake.org/mailman/listinfo/cmake
>
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Re: [CMake] CMake with two C++ compilers

[Sergei Nikulov]

ср, 8 мая 2019 г. в 14:27, JR Cary :
>
> 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

Here is the exact answer to your question
https://devblogs.nvidia.com/building-cuda-applications-cmake/


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Best Regards,
Sergei Nikulov
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Re: [CMake] CMake with two C++ compilers

[Hex]

set the compiler for each build:

set(COMPILER /opt/gcc/bin)
cmake_force_c_compiler(  "${COMPILER}gcc" GNU)
cmake_force_cxx_compiler("${COMPILER}g++" GNU)



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[CMake] CMake with two C++ compilers

[JR Cary]

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
--

Powered by www.kitware.com

Please keep messages on-topic and check the CMake FAQ at: 
http://www.cmake.org/Wiki/CMake_FAQ

Kitware offers various services to support the CMake community. For more 
information on each offering, please visit:

CMake Support: http://cmake.org/cmake/help/support.html
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