--- /dev/null
+## Copyright (C) 2003,2004,2005 Michael Creel <michael.creel@uab.es>
+##
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 2 of the License, or
+## (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program; If not, see <http://www.gnu.org/licenses/>.
+
+function contrib = mle_obj_nodes(theta, data, model, modelargs, nn)
+ global NEWORLD NSLAVES
+
+ # Who am I?
+ [info, rank] = MPI_Comm_rank(NEWORLD);
+ if rank == 0 # Do this if I'm master
+ startblock = NSLAVES*nn + 1;
+ endblock = rows(data);
+ else # this is for the slaves
+ startblock = rank*nn-nn+1;
+ endblock = rank*nn;
+ endif
+
+ data = data(startblock:endblock,:);
+ contrib = feval(model, theta, data, modelargs);
+ contrib = sum(contrib);
+
+endfunction