omp_simd error in step-67 when installing deal.ii 9.2.0 with spack

[Ester Comellas]

Hi,

I successfully installed the latest deal.ii version on my laptop (MacOSX) and my office computer (Debian GNU/Linux on a WinOS). However, I'm running into issues when trying to install it in the cluster at my university using spack (https://rc.northeastern.edu/systems/hardware-2/).

Looking at the spack build log, the error points to "omp_simd" in line cc:1516 of step-67. I attach a summary of the installation process I followed and the complete build log. Here is an excerpt of the log, where the error is described:

/tmp/ecomellas/spack-stage/spack-stage-dealii-9.2.0-tplhihkkvrmlg5zyapdbsgbxebll4bvq/spack-src/examples/step-67/step-67.cc: In lambda function:

/tmp/ecomellas/spack-stage/spack-stage-dealii-9.2.0-tplhihkkvrmlg5zyapdbsgbxebll4bvq/spack-src/examples/step-67/step-67.cc:1516:9: sorry, unimplemented: unexpected AST of kind omp_simd

         });

         ^

/tmp/ecomellas/spack-stage/spack-stage-dealii-9.2.0-tplhihkkvrmlg5zyapdbsgbxebll4bvq/spack-src/examples/step-67/step-67.cc:1516: confused by earlier errors, bailing out

make[2]: *** [examples/CMakeFiles/step-67.debug.dir/step-67/step-67.cc.o] Error 1

I suppose it is a problem with the packages I'm loading in spack, which aren't compatible with the omp_simd command, but I've already tried everything I could think of. I'd appreciate if someone could point me in the right direction towards solving this issue.

Thanks!

Ester

[Jean-Paul Pelteret]

Hi Ester,

There’s a quick workaround for this. You should just edit this line of the deal.II spack package:

https://github.com/spack/spack/blob/develop/var/spack/repos/builtin/packages/dealii/package.py#L252

i.e. make it '-DDEAL_II_COMPONENT_EXAMPLES=OFF’

I’ve also found that unconditionally building the examples might not be the best thing for the spack package, and its a bit frustrating to find a problem right at the end of the build too. So I’ll be pushing a patch to make this an option/variant that will allow one to dynamically control in the future.

I hope that this “solves” the issue for you!

Best,

J-P

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[Ester Comellas]

Thanks, J-P. It worked like a charm! My deal.ii code is now up and running. Thanks once again!

Ester

El dia dimecres, 22 de juliol de 2020 a les 18:21:57 UTC+2, Jean-Paul Pelteret va escriure: