A look at Chapel, D, and Julia using kernel matrix calculations

[welkam]

Nice article. It shows that you put a lot of work into it. The 
one thing I want to point out is that --O5 is the same as --O3.

 From ldc2 --help

   Setting the optimization level:
       -O                                   - Equivalent to -O3
       --O0                                  - No optimizations 
(default)
       --O1                                  - Simple optimizations
       --O2                                  - Good optimizations
       --O3                                  - Aggressive 
optimizations
       --O4                                  - Equivalent to -O3
       --O5                                  - Equivalent to -O3
       --Os                                  - Like -O2 with extra 
optimizations for size
       --Oz                                  - Like -Os but 
reduces code size further