septc

I'm interested in the following example (3x speedup), and is it possible to read more details about their project?

(From the hpcwire article) "During his talk, Edelman presented an example in which a group of researchers decided to scrap their legacy climate code in Fortran and write it from scratch in Julia. There was some discussion around performance tradeoffs they might encounter in the move to a high level programming language. The group was willing to accept a 3x slowdown for the flexibility of the language. Instead, said Edelman, the switch produced 3x speedup."

Gfortran is very nice, but I recommend a recent version (at least ver >= 7) rather than old versions (e.g. ver 4.4, which may still be the default on CentOS 6 etc). For performance, I guess Intel fortran is probably better (but also depends on calculations).

Just out of curiosity, what do you use for calling Fortran from Python (e.g. f2py, ctypes)? Do you have any suggestion about how to combine them together (e.g., for parallel calculations)?

The original website is here

https://wg5-fortran.org/

and the temporary survey result (as of 2017-10) can be downloaded here

http://isotc.iso.org/livelink/livelink?func=ll&objId=1929365...