Hi Mark,

As far as I am aware these tests typically pass. We have a got lab CI system you can check to see what builds we typically run under gitlab.nektar.info

Best,
Spencer

Sent from my iPhone

> On 24 Jul 2024, at 17:10, Mark Dixon <mark.c.dixon@durham.ac.uk> wrote:
>
> 
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> Hi there,
>
> We're trying to install nektar++ 5.6.0 from source on our HPC system and are having trouble passing two parallel tests:
>
>  MultiRegions_Helmholtz2D_CG_P7_Modes_AllBCs_iter_ml_par3
>  MultiRegions_Helmholtz3D_CG_Hex_AllBCs_iter_ml_par3
>
> In both cases they hang. Have tried openmpi, intelmpi and mvapich2. Attaching strace to the processes reveals a lot of polling and not much else.
>
> To simplify, I've reproduced this on a separate Rocky 8.10 system + EPEL packages and building against master (7b1aa23bb) in case it has already been fixed. openmpi is 4.1.1:
>
>  git clone http://gitlab.nektar.info/nektar/nektar.git
>  mkdir build
>  cd build
>  cmake -D NEKTAR_USE_MPI=ON ../nektar
>  make -j24
>  ctest
>
> Are these tests known to be problematic, please?
>
> Thanks,
>
> Mark
>
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