[mvapich-discuss] install question

[Morin, Monique Marlene]

Thank you very much -- this makes sense and is consistent with what we found.

________________________________
From: Ammar Ahmad Awan <ammar.ahmad.awan at gmail.com>
Sent: Wednesday, August 29, 2018 9:24 PM
To: Morin, Monique Marlene
Cc: mvapich-discuss at cse.ohio-state.edu
Subject: Re: [mvapich-discuss] install question

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<mailto: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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