Why physicists still use Fortran

Re:Why physicists still use Fortran by flamedoge on Sunday December 18, 2016 @07:48PM (#13208685)

Compilers are afraid to optimize around possible UB, even though they can.

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Re:Why physicists still use Fortran by greglindahl on Monday December 19, 2016 @12:36AM (#13209675)

Having worked with key people from the SGI compiler team, and then competed with Intel / PGI / Sun / gcc on x86, I totally disagree.

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Re:Why physicists still use Fortran by flamedoge on Monday December 19, 2016 @01:16AM (#13209779)

I guess I should've looked when I said "Compilers". I only skimmed two and one of them is LLVM.

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Re:Why physicists still use Fortran by flamedoge on Monday December 19, 2016 @02:10AM (#13209954)

I totally see UB as a blessing in disguise for optimizer.

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Re:Why physicists still use Fortran by greglindahl on Monday December 19, 2016 @02:15AM (#13209977)

Usually, yeah. The art is making it debuggable, when the user accidentally strays into UB and needs help not doing that.

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