3 #include <simgrid/platf_generator.h>
4 #include "platf_generator_private.h"
7 #include <xbt/RngStream.h>
9 static xbt_graph_t platform_graph = NULL;
11 static RngStream rng_stream = NULL;
13 void platf_random_seed(unsigned long seed[6]) {
15 if(rng_stream == NULL) {
16 //stream not created yet, we do it now
17 rng_stream = RngStream_CreateStream(NULL);
20 RngStream_SetSeed(rng_stream, seed);
24 void platf_graph_init(int node_count) {
26 platform_graph = xbt_graph_new_graph(TRUE, NULL);
27 if(rng_stream == NULL) {
28 rng_stream = RngStream_CreateStream(NULL);
31 for(i=0 ; i<node_count ; i++) {
32 context_node_t node_data = NULL;
33 node_data = xbt_new(s_context_node_t, 1);
36 node_data->degree = 0;
37 node_data->kind = ROUTER;
38 xbt_graph_new_node(platform_graph, (void*) node_data);
42 void platf_graph_uniform(int node_count) {
43 xbt_dynar_t dynar_nodes = NULL;
44 xbt_node_t graph_node = NULL;
45 context_node_t node_data = NULL;
47 platf_graph_init(node_count);
48 dynar_nodes = xbt_graph_get_nodes(platform_graph);
49 xbt_dynar_foreach(dynar_nodes, i, graph_node) {
50 node_data = (context_node_t) xbt_graph_node_get_data(graph_node);
51 node_data->x = RngStream_RandU01(rng_stream);
52 node_data->y = RngStream_RandU01(rng_stream);