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Porting LAPACK is not necessarily slower. C, C++ and D languages have better performance ports that are faster than Fortran based LAPACK (numerical library stil
by teleforce 4y ago
Porting LAPACK is not necessarily slower. C, C++ and D languages have better performance ports that are faster than Fortran based LAPACK (numerical library still being used by Matlab and Julia to this very day) [1][2]. Particularly,
D language has a better performance port of LAPACK since more than 6 years ago and it should be much easier to be understood and maintained compared to Fortran, C or C++ ones [2][3].
Recently D introduced importC feature to natively support C, the de facto language for system programming. You can then just simply import and re-used the existing C programs and libraries as it is with all the bugs without introducing more bugs [4].
I hope already debunked the myth that Fortran is irreplaceable for numerical codes based on your arguments for good.
[1]Vastly outperforming LAPACK with C++ metaprogramming:
https://wordsandbuttons.online/vastly_outperforming_lapack_with_cpp_metaprogramming.html https://wordsandbuttons.online/vastly_outperforming_lapack_w...
[2]Numeric age for D: Mir GLAS is faster than OpenBLAS and Eigen:
http://blog.mir.dlang.io/glas/benchmark/openblas/2016/09/23/glas-gemm-benchmark.html http://blog.mir.dlang.io/glas/benchmark/openblas/2016/09/23/...
[3]Commentary on "Outperforming LAPACK with C++ metaprogramming":
https://news.ycombinator.com/item?id=16257794 https://news.ycombinator.com/item?id=16257794
[4]Your next C compiler is a D compiler: Introducing DMD's ImportC:
https://news.ycombinator.com/item?id=33443615 https://news.ycombinator.com/item?id=33443615
- adgjlsfhk1 4y agoAny chance you can make a PR to julia to give us one of the better LAPACKS? Our medium term goal is to replace LAPACK with pure Julia code but in the meantime, performance improvements are always appreciated.