sarat poluri <sarat.pol...@gmail.com> wrote on 11/10/2009 02:03:23 PM:
> Hi,
>
> How can i distribute a n-dimensional array as blocks across all places
and
> then initialize each element of that array?
>
> i have an array which is first declared as a 5-D array and then inside a
> function the array is initialized with the appropriate distribution
taking
> the bounds of the region from the parameters of that function.
>
> class ATFInitMatrix
> {
> var ATF_dim:Array[Int](1) = Array.make[Int](0..2);
>
> var ATF_rm000:Array[Double](5);
>
> public def ATF_Init_matrix(var px:int, var py:int, var pz:int):boolean
> {
> var dim5:Array[Int](1) = Array.make[Int](0..4);
>
> ATF_dim(0) = px;
> ATF_dim(1) = py;
> ATF_dim(2) = pz;
>
> /* Allocate dynamic arrays */
> dim5(0) = ATF_dim(0)+2;
> dim5(1) = ATF_dim(1)+2;
> dim5(2) = ATF_dim(2)+2;
> dim5(3) = 1;
> dim5(4) = 1;
>
> val R1 = [0..dim5(0), 0..dim5(1),0..dim5(2),0..dim5(3),0..dim5(4)];
> val D1 = Dist.makeBlock(R1, 0);
>
> ATF_rm000 = Array.make[Double](D1);
> }
>
> public def ATF_Reset():boolean
> {
> finish ateach(val p(i,j,k,l,n): Point(5) in ATF_rm000.dist)
> {
> ATF_rm000(p) = 0.0;
> }
> }
>
> The ATF_Reset function throws a badplaceexception. What are the options
> available to do this. should i declare the ATF_rm000 array as a val
instead
> of var, in which case how do i declare first and initialize later or is
> there another approach.
>
> Please advice.
Hi, Sarat,
You are not getting a BadPlaceException because you're accessing the wrong
point in the distribution. You are getting it because you are trying to
access the field ATF_rm000 from the current object, which lives in place
0.
In the below, I'll assume you're using X10 1.7. If you are using X10 2.0,
the solution will be different.
I would make ATFInitMatrix a value class (thus ATF_rm000 becomes a val
field that you have to initialize early). Then you can access all of its
fields at any place.
Igor
--
Igor Peshansky (note the spelling change!)
IBM T.J. Watson Research Center
XJ: No More Pain for XML's Gain (http://www.research.ibm.com/xj/)
X10: Parallel Productivity and Performance (http://x10.sf.net/)
------------------------------------------------------------------------------
Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day
trial. Simplify your report design, integration and deployment - and focus on
what you do best, core application coding. Discover what's new with
Crystal Reports now. http://p.sf.net/sfu/bobj-july
_______________________________________________
X10-users mailing list
X10-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/x10-users
