Creating LFortran, an interactive Fortran compiler built on top of LLVM

Re:Creating LFortran, an interactive Fortran compiler built ... by new4thaccount on Thursday May 02, 2019 @01:05PM (#19810005)

Question:

What is a good Fortran compiler/implementation these days?

I know they have Intel and IBM and SimplyFortran as commercial software. GFortran works via GCC. Is it as good? Has anyone on here used this LFortran.

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Re:Creating LFortran, an interactive Fortran compiler built ... by septc on Thursday May 02, 2019 @01:59PM (#19810602)

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).

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Re:Creating LFortran, an interactive Fortran compiler built ... by new4thaccount on Thursday May 02, 2019 @03:07PM (#19811471)

Thanks!

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Re:Creating LFortran, an interactive Fortran compiler built ... by certik on Thursday May 02, 2019 @10:56PM (#19815128)

The best open source implementation is GFortran. Just make sure you use a recent version, as others mentioned.

Regarding commercial implementations, I only have experience with Intel and NAG, both of which are very good.

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Re:Creating LFortran, an interactive Fortran compiler built ... by atemerev on Thursday May 02, 2019 @01:19PM (#19810164)

Everybody I know in public science (physics) uses gfortran, works just fine.

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Re:Creating LFortran, an interactive Fortran compiler built ... by new4thaccount on Thursday May 02, 2019 @03:07PM (#19811466)

Good to know, thanks! I've used software compiled with the Intel compiler, but have only written some toy programs in GFortran and it seems fast enough. I like the revival idea behind LFortran though. Reading scientific C++ is much more difficult than Fortran.

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