Hi, Its C bindings and if I clear the picture a bit more, what it does is partitioning the original matrix in to a set of sub matrices to be processed by the a other processes. And it seems that the only option left is to bundle off in to a temp buffer before sending as you have suggested. It would have been nice if there was a derived data type to do the trick :) ?
Thanks, Prasad. On Tue, Jul 21, 2009 at 12:00 PM, Terry Frankcombe <te...@chem.gu.se> wrote: > Which language bindings? > > For Fortran, consider pack or reshape. (I *think* whether array > sections are bundled off into temporary, contiguous storage is > implementation-dependent.) > > Isn't it easier to broadcast the size first? > > > On Tue, 2009-07-21 at 11:53 +0530, Prasadcse Perera wrote: > > Hi all, > > I'm writing an application which requires sending some variable size > > of sub matrices to a set of processes by a lead process who holds the > > original matrix. Here, the matrices are square matrices and the > > receiving process doesn't know the size of the receiving matrix. In > > MPI_Bcast, I have seen that we can broadcast a whole matrix. Is there > > a similar way to do this with a derived data type for the matrices > > which we can send a matrix without looping the blocks ?. > > > > Thanks, > > Prasad. > > -- > > > http://www.codeproject.com/script/Articles/MemberArticles.aspx?amid=3489381 > > _______________________________________________ > > users mailing list > > us...@open-mpi.org > > http://www.open-mpi.org/mailman/listinfo.cgi/users > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users > -- http://www.codeproject.com/script/Articles/MemberArticles.aspx?amid=3489381
