[mvapich-discuss] install question

[Ammar Ahmad Awan]

Hi Monique,

CUDA 9.x currently does not support ICC 18 as a host compiler. This can be
seen from the include/crt/host_config.h file in your CUDA toolkit's home
directory.

MVAPICH 2.2 did not have this check so you are able to build it with Intel
Compiler v18+, which is not recommended.

MVAPICH 2.3 has a check to compile using the correct host compiler and that
is why you see a failure in compiling with ICC 18. We recommend you to use
ICC 17 or earlier when building with CUDA 9.x.

Regards,
Amma
r


On Fri, Aug 24, 2018 at 12:41 PM Morin, Monique Marlene <morin at lanl.gov>
wrote:

> Hello,
>
>
> I am writing to ask about something that seems different between the 2.3
> vs 2.2 source tarball of MVAPICH when configuring with cudatoolkit.
>
>
> If we install 2.3 using the Intel compiler version 18+ (and cudatoolkit
> 9.0 or 9.1) we get the following error, apparently generated by cudatoolkit
> (host.config):
>
>
>
> "error: #error directive: -- unsupported ICC configuration! Only ICC 15.0,
> ICC 16.0, and ICC 17.0 on Linux x86_64 are supported!
>   #error -- unsupported ICC configuration! Only ICC 15.0, ICC 16.0, and
> ICC 17.0 on Linux x86_64 are supported!"
>
>
> However, with only changing back (all other versions the same) to 2.2 we
> are fine -- no error, and install completes and OSU BW benchmark works.
>
>
> Wondering if perhaps there was a workaround in 2.2 that did not make it to
> 2.3 source tarball?
>
>
> Has anyone else run into this?
>
>
> Thanks!
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>
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