[mpich-discuss] gather, send

[Ryan Crocker]

Hi all, 

So i don't know what the issue with this code snippet is but i cannot get the scatter call to work.  When i print out the recieve_buffer it comes out as all zeros.   The counters without the underscore are the core domains, with the o, the global domains.

   rec_count  = (imaxo-imino+1)*(jmaxo-jmino+1)*(kmaxo-kmino+1) 
   send_count = (imax_-imin_+1)*(jmax_-jmin_+1)*(kmax_-kmin_+1) 

   call MPI_GATHER  (send_buffer, send_count, MPI_REAL, gsend_buffer, send_count, MPI_REAL, iroot, comm, ierr)

   rec_count  = (imaxo-imino+1)*(jmaxo-jmino+1)*(kmaxo-kmino+1) 
   send_count = (imaxo-imino+1)*(jmaxo-jmino+1)*(kmaxo-kmino+1) 

   call MPI_SCATTER (gsend_buffer, send_count, MPI_REAL, recieve_buffer, rec_count, MPI_REAL, iroot, comm, ierr)

thanks for the help.

Ryan Crocker
University of Vermont, School of Engineering
Mechanical Engineering Department
rcrocker at uvm.edu