Investigate and document differences between different compilers

UCL-ARC / fortran-tooling

MIT License

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Open connoraird opened 6 months ago

connoraird commented 6 months ago

Compilers from different suppliers can produce different outputs. We would like to cover this and provide some advice.

qiUip commented 5 months ago

Just to start things off, maybe a list of compiler flags differences could be handy? For instance optimisation: ifort

-O3 -xHost

gfortran

-O3 -march=native

I could start a markdown simply called 'compilers.md' to get this going?