1 # Copyright (C) 2006, 2007 Michael Creel <michael.creel@uab.es>
2 # under the terms of the GNU General Public License.
4 # This program is free software; you can redistribute it and/or modify
5 # it under the terms of the GNU General Public License as published by
6 # the Free Software Foundation; either version 2 of the License, or
7 # (at your option) any later version.
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 # GNU General Public License for more details.
14 # You should have received a copy of the GNU General Public License
15 # along with this program; If not, see <http://www.gnu.org/licenses/>.
17 # kernel_density_nodes: for internal use by kernel_density - does calculations on nodes
19 function z = kernel_density_nodes(eval_points, data, do_cv, kernel, points_per_node, nslaves, debug)
23 [info, myrank] = MPI_Comm_rank(NEWORLD);
24 else myrank = 0; # if not parallel then do all on master node
27 if myrank == 0 # Do this if I'm master
28 startblock = nslaves*points_per_node + 1;
29 endblock = rows(eval_points);
30 else # this is for the slaves
31 startblock = myrank*points_per_node - points_per_node + 1;
32 endblock = myrank*points_per_node;
35 # the block of eval_points this node does
36 myeval = eval_points(startblock:endblock,:);
40 W = __kernel_weights(data, myeval, kernel);
42 W = W - diag(diag(W));
49 printf("z on node %d: \n", myrank);