Re: Projects I may be willing to sponsor

  • From: Joseph Ellsworth <joexdobs@xxxxxxxxx>
  • To: luajit@xxxxxxxxxxxxx
  • Date: Wed, 10 Dec 2014 10:15:53 -0800

My not be any different.  In that case it would be a simple project of
creating a new page on the Luajit site that shows the Lua code that does it
with ffi along side the equivalent native C program and some bench marks
that show the results side by side.

The sample / example would   allocate the array,  Fill it with a set of
doubles read from a file,   Run the sum and return both the sum and average
value.     If we are successful the Luajit code and the C code should yield
very similar results when ran across a few million items.   If not then we
know exactly how much slower it will be for this use case.

This seems like a trivial use case but I do a lot of this kind of work in
our ML project and we run this look mil.    We actually have a 3 deep
array  the first two levels contain pointers to the next level array.

On Wed, Dec 10, 2014 at 9:56 AM, Alex <initrd.gz@xxxxxxxxx> wrote:

> > Implement operator to initialize high density array of type  with fact
> access similar to C
>
> How is this different from FFI arrays? I.e. `ffi.new("double[?]", maxele)`
> or `ffi.cast("double*", ffi.C.malloc(ffi.sizeof("double")*maxele))`
>
> --
> Sincerely,
> Alex Parrill
>



-- 
Joseph Ellsworth
Principal Engineer
206-601-2985

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