1 /* Copyright (c) 2008, 2009, 2010. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 /** @addtogroup MSG_examples
9 * @subsection MSG_ex_resources Other resource kinds
11 * This section contains some sparse examples of how to use the other
12 * kind of resources, such as disk or GPU. These resources are quite
13 * experimental for now, but here we go anyway.
15 * - <b>io/file.c</b> Example with the disk resource
18 #define FILENAME1 "./doc/simgrid/examples/platforms/g5k.xml"
19 #define FILENAME2 "./doc/simgrid/examples/platforms/One_cluster_no_backbone.xml"
20 #define FILENAME3 "./doc/simgrid/examples/platforms/g5k_cabinets.xml"
21 #define FILENAME4 "./doc/simgrid/examples/platforms/nancy.xml"
26 #include "surf/surf_private.h"
28 int host(int argc, char *argv[]);
30 XBT_LOG_NEW_DEFAULT_CATEGORY(io_file,
31 "Messages specific for this io example");
33 int host(int argc, char *argv[])
35 msg_file_t file = NULL;
36 char* mount = xbt_strdup("/home");
39 if(!strcmp(MSG_process_get_name(MSG_process_self()),"0")){
40 file = MSG_file_open(mount,FILENAME1);
42 } else if(!strcmp(MSG_process_get_name(MSG_process_self()),"1"))
43 file = MSG_file_open(mount,FILENAME2);
44 else if(!strcmp(MSG_process_get_name(MSG_process_self()),"2"))
45 file = MSG_file_open(mount,FILENAME3);
46 else if(!strcmp(MSG_process_get_name(MSG_process_self()),"3"))
47 file = MSG_file_open(mount,FILENAME4);
48 else xbt_die("FILENAME NOT DEFINED %s",MSG_process_get_name(MSG_process_self()));
50 XBT_INFO("\tOpen file '%s'",file->fullname);
52 read = MSG_file_read(10000000,file); // Read for 10MB
53 XBT_INFO("\tHave read %zu on %s",read,file->fullname);
55 write = MSG_file_write(100000,file); // Write for 100KB
56 XBT_INFO("\tHave written %zu on %s",write,file->fullname);
58 read = MSG_file_read(110000,file); // Read for 110KB
59 XBT_INFO("\tHave read %zu on %s (of size %zu)",read,file->fullname,
60 MSG_file_get_size(file));
62 XBT_INFO("\tClose file '%s'",file->fullname);
69 int main(int argc, char **argv)
72 MSG_init(&argc, argv);
73 MSG_create_environment(argv[1]);
74 xbt_dynar_t hosts = MSG_hosts_as_dynar();
75 MSG_function_register("host", host);
76 unsigned long nb_hosts = xbt_dynar_length(hosts);
77 XBT_INFO("Number of host '%lu'",nb_hosts);
78 for(i = 0 ; i<nb_hosts; i++)
80 char* name_host = bprintf("%d",i);
81 MSG_process_create( name_host, host, NULL, xbt_dynar_get_as(hosts,i,msg_host_t) );
84 xbt_dynar_free(&hosts);
87 XBT_INFO("Simulation time %g", MSG_get_clock());