Compilation on ARM

[Z10Frank]

Hello,
I tried to compile the code on my Mac, following the instructions to use home-brew in the documentation, and using

export CXX=g++-12
export CC=gcc-12

I obtain a long error message at the linking phase, does the code support ARM architectures?

[100%] Linking CXX executable bin/hipace.MPI.OMP.DP.LF
Undefined symbols for architecture arm64:
  "__ZN6adios22IO12SetParameterENSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_", referenced from:
      __ZN7openPMD6detail15BufferedActions17configure_IO_ReadESt8optionalIbE in libopenPMD.a(ADIOS2IOHandler.cpp.o)
...

[SeverinDiederichs]

Hi Francesco,
thank you for reaching out.

The error seems to come from the openPMD-api, so I'll ping @ax3l, so he can have a look when he is back.

In the meantime, could you try without ADIOS2? If you install both ADIOS2 and HDF5 you can choose the backend. Only one is required and here there seems to be a problem with ADIOS2, so you could remove it from your brew setup and try just with HDF5.

The code does support ARM architectures, I run on my Macbook with an M1 chip, but I used Spack for installing the dependencies of HiPACE++.

[Z10Frank]

Thank you for the quick answer, I will try!