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;
38 char* mount = bprintf("/home");
41 if(!strcmp(MSG_process_get_name(MSG_process_self()),"0"))
42 file = MSG_file_open(mount,FILENAME1,"rw");
43 else if(!strcmp(MSG_process_get_name(MSG_process_self()),"1"))
44 file = MSG_file_open(mount,FILENAME2,"rw");
45 else if(!strcmp(MSG_process_get_name(MSG_process_self()),"2"))
46 file = MSG_file_open(mount,FILENAME3,"rw");
47 else if(!strcmp(MSG_process_get_name(MSG_process_self()),"3"))
48 file = MSG_file_open(mount,FILENAME4,"rw");
49 else xbt_die("FILENAME NOT DEFINED %s",MSG_process_get_name(MSG_process_self()));
51 XBT_INFO("\tOpen file '%s'",file->name);
53 read = MSG_file_read(ptr,10000000,sizeof(char*),file); // Read for 10Mo
54 XBT_INFO("\tHave read %8.1f on %s",read,file->name);
56 write = MSG_file_write(ptr,100000,sizeof(char*),file); // Write for 100Ko
57 XBT_INFO("\tHave written %8.1f on %s",write,file->name);
59 read = MSG_file_read(ptr,10000000,sizeof(char*),file); // Read for 10Mo
60 XBT_INFO("\tHave read %8.1f on %s",read,file->name);
62 MSG_file_stat(file,&stat);
63 XBT_INFO("\tFile stat %s Size %.1f",file->name,stat.size);
64 MSG_file_free_stat(&stat);
66 XBT_INFO("\tClose file '%s'",file->name);
73 int main(int argc, char **argv)
76 MSG_init(&argc, argv);
77 MSG_create_environment(argv[1]);
78 xbt_dynar_t hosts = MSG_hosts_as_dynar();
79 MSG_function_register("host", host);
80 unsigned long nb_hosts = xbt_dynar_length(hosts);
81 XBT_INFO("Number of host '%lu'",nb_hosts);
82 for(i = 0 ; i<nb_hosts; i++)
84 char* name_host = bprintf("%d",i);
85 MSG_process_create( name_host, host, NULL, xbt_dynar_get_as(hosts,i,msg_host_t) );
88 xbt_dynar_free(&hosts);
91 XBT_INFO("Simulation time %g", MSG_get_clock());