Yes, these are all MPI_DOUBLE
On Fri, Aug 22, 2014 at 3:38 PM, Rob Latham <r...@mcs.anl.gov> wrote: > > > On 08/22/2014 10:10 AM, Saliya Ekanayake wrote: > >> Hi, >> >> I've a quick question about the usage of Java binding. >> >> Say there's a 2 dimensional double array (size m x n) that needs to be >> sent to another rank. I see two options to get this done, >> >> 1. Copy values to a direct buffer of size m*n and send it >> 2. Copy values to a 1D array of size m*n and send it >> > > i have no idea about the java mpi bindings, but can you describe the type > with an mpi datatype? > > ==rob > > >> I guess 2 would internally do the copying to a buffer and use it, so >> suggesting 1. is the best option. Is this the case or is there a better >> way to do this? >> >> >> Thank you, >> Saliya >> -- >> Saliya Ekanayake esal...@gmail.com <mailto:esal...@gmail.com> >> >> http://saliya.org >> >> >> _______________________________________________ >> users mailing list >> us...@open-mpi.org >> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users >> Link to this post: http://www.open-mpi.org/community/lists/users/2014/08/ >> 25130.php >> >> > -- > Rob Latham > Mathematics and Computer Science Division > Argonne National Lab, IL USA > > _______________________________________________ > users mailing list > us...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users > Link to this post: http://www.open-mpi.org/community/lists/users/2014/08/ > 25135.php > -- Saliya Ekanayake esal...@gmail.com Cell 812-391-4914 Home 812-961-6383 http://saliya.org
