Re: LuaJIT2 performance for number crunching

[Leo Razoumov <slonik.az@...>]

On Thu, Feb 17, 2011 at 17:42, T T <t34www@googlemail.com> wrote:
> I ported your
> rk4-unroll.lua to MATLAB and performance was terrible.  But for an ODE
> of large dimension it will perform OK, because this overhead won't
> matter that much.
>

In more complex cases like heavy event processing with lots of
branching MATLAB JIT is easily defeated (LuaJIT possibly would not do
great either). Couple of years ago we did a WiMAX system level
simulator in MATLAB. Or boy, it was slow.
Finally most of the heavy lifting was done in C-code and MATLAB just
became an IO and configuration shell.

--Leo--

P.S. And you pay through the noise as you go: for each CPU core, for
each toolbox, for updates (via contract) etc.