Hi Brian,
Thank you for the info. It really helped.
cheers,
Rohit
On 27/09/2007, Brian Barrett <brbarret_at_[hidden]> wrote:
>
> On Sep 26, 2007, at 5:15 AM, Rohit Prakash wrote:
>
> > MPI_Send(input_to_p0,SIZE,MPI_2COMPLEX,
> > 1,tag0,MPI_COMM_WORLD);
> >
>
> MPI_2COMPLEX is a special datatype used for MAXLOC and MINLOC
> reductions with Fortran. There is no predefined C datatype to
> describe a complex (since C doesn't have a native complex datatype).
>
> The easiest way to handle this would be to use MPI_TYPE_VECTOR to
> create a datatype that consists of two consecutive MPI_FLOAT datatypes.
>
> Hope this helps,
>
> Brian
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