Error when compiling SU2 on Raspberry Pi Cluster
 

I am attempting to install SU2 on a raspberry pi cluster with openmpi.
I have the SU2 source in a file share and ran meson.py with using meson had an output of this
I added the export lines to bashrc then ran ninja with However it fails as it cant find mpi.h.


Ninja output link



Can anyone shed some light on this error?


Let me know if i can include any more files or logs.


Thanks

The first thing to check is if mpi.h is actually installed somewhere. It is part of a specific package, if you use a package manager, the package that provides it is probably called something like libopenmpi-dev. Usually, the ***-dev packages in linux are the packages that provide the header files.


When you have installed mpi.h, you can first check with a simple hello-world kind of test to see if you can compile and run an openmpi program.

For instance: https://mpitutorial.com/tutorials/mpi-hello-world/

I have already run C and python in parallel on the cluster using the mpi header file and it works, i have run hello world and a Pi approximation script.



Because it's a raspberry pi they are installed in a non ordinary location.


returns this results
The mpi header file is located in Is ninja looking in a different location for the file?

Try doing
export CC=mpicc
export CXX=mpicxx
Before calling ./meson.py (delete the build folder first)

Thanks
This solved the problem.