Dear David,
Thanks for the reply, but I guess my problem is much more easier than
that, I think theres something that I'm missing out,
1) Am I restricted to "*Rail*" types only when I want to integrate arrays as
parameters in a Native code method. for example If I want to
pass an array from X10 to a BLAS routine in C which takes "*double [ ]*" as
a parameter, do I have to convert the array to a "Rail" type?
2) I want to use any Data structure that could be distributed over distinct
places, and I would be able to extract regions of it (like a blocked
distribution e.g a block in place 1) and be capable of sending it as a
parameter to a BLAS routine.
3) What is the type "DistributedRail"? When I look into the documentation I
couldn't really understand how its used.
Thank you all,
Regards,
Mohammed
On Thu, Jul 8, 2010 at 11:08 AM, David P Grove <gro...@us.ibm.com> wrote:
>
>
>
> mohammed elsaeedy <mohammed.elsae...@kaust.edu.sa> wrote on 07/08/2010
> 10:47:57 AM:
> >
> >
> > I'm trying to use the BLAS libraries with X10, and I was able to use
> the
> > rails to be sent as parameters to BLAS routines,
> > now I want to parallelize these rails into places and call in each place
> a
> > BLAS routine.
> >
> > When I call a BLAS routine, I define a native function for example :
> > "*...@native("c++",
> > "run((#1)->raw(), (#2)->raw(), (#3)->raw())")*"
> > these parameters are Arrays "*double[ ]*" in C-BLAS routines, as I
> > understand X10 has to take them in the form of Rail to convert them to
> the
> > back-ends
> > corresponding type basically "arrays", so when I used the "Array" type in
> > X10 I had to call the raw( ) function, but what if I want to use the
> > DistArray, the raw function is
> > protected.
> >
> > Am I missing something?
> >
>
> You could change the raw() method if DistArray to be public for
> experimental purposes.
>
> We are still doing some re-design on the internal of DistArray, so didn't
> want to commit to make the raw() method be part of its public API yet. The
> way distributions map the points in the region into the local storage might
> still be evolving. It will be stablized by X10 2.1.0 (end of August).
>
> --dave
>
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--
Thank you for your concern.
Regards,
Mohammed El Sayed
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