1 /* Copyright (c) 2004-2018. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #include "surf_interface.hpp"
8 #include "simgrid/s4u/Engine.hpp"
9 #include "simgrid/sg_config.hpp"
10 #include "src/internal_config.h"
11 #include "src/surf/HostImpl.hpp"
12 #include "src/surf/xml/platf.hpp"
13 #include "surf/surf.hpp"
14 #include "xbt/module.h"
23 XBT_LOG_NEW_CATEGORY(surf, "All SURF categories");
24 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_kernel, surf, "Logging specific to SURF (kernel)");
30 std::vector<simgrid::kernel::resource::Model*> all_existing_models; /* to destroy models correctly */
32 simgrid::trace_mgr::future_evt_set future_evt_set;
33 std::vector<std::string> surf_path;
34 /** set of hosts for which one want to be notified if they ever restart. */
35 std::set<std::string> watched_hosts;
36 extern std::map<std::string, simgrid::surf::StorageType*> storage_types;
38 s_surf_model_description_t* surf_plugin_description = nullptr;
39 XBT_PUBLIC void simgrid_add_plugin_description(const char* name, const char* description, void_f_void_t init_fun)
41 static int plugin_amount = 0;
43 /* no need to check for plugin name conflict: the compiler already ensures that the generated
44 * simgrid_##id##_plugin_register() is unique */
47 surf_plugin_description = static_cast<s_surf_model_description_t*>(
48 xbt_realloc(surf_plugin_description, sizeof(s_surf_model_description_t) * (plugin_amount + 2)));
50 surf_plugin_description[plugin_amount - 1] = {name, description, init_fun};
51 surf_plugin_description[plugin_amount] = {nullptr, nullptr, nullptr}; // this array must be null terminated
54 /* Don't forget to update the option description in smx_config when you change this */
55 s_surf_model_description_t surf_network_model_description[] = {
56 {"LV08", "Realistic network analytic model (slow-start modeled by multiplying latency by 13.01, bandwidth by .97; "
57 "bottleneck sharing uses a payload of S=20537 for evaluating RTT). ",
58 &surf_network_model_init_LegrandVelho},
59 {"Constant", "Simplistic network model where all communication take a constant time (one second). This model "
60 "provides the lowest realism, but is (marginally) faster.",
61 &surf_network_model_init_Constant},
62 {"SMPI", "Realistic network model specifically tailored for HPC settings (accurate modeling of slow start with "
63 "correction factors on three intervals: < 1KiB, < 64 KiB, >= 64 KiB)",
64 &surf_network_model_init_SMPI},
65 {"IB", "Realistic network model specifically tailored for HPC settings, with Infiniband contention model",
66 &surf_network_model_init_IB},
67 {"CM02", "Legacy network analytic model (Very similar to LV08, but without corrective factors. The timings of "
68 "small messages are thus poorly modeled).",
69 &surf_network_model_init_CM02},
70 {"NS3", "Network pseudo-model using the NS3 tcp model instead of an analytic model", &surf_network_model_init_NS3},
72 "Model from Steven H. Low using lagrange_solve instead of lmm_solve (experts only; check the code for more info).",
73 &surf_network_model_init_Reno},
75 "Model from Steven H. Low using lagrange_solve instead of lmm_solve (experts only; check the code for more info).",
76 &surf_network_model_init_Reno2},
78 "Model from Steven H. Low using lagrange_solve instead of lmm_solve (experts only; check the code for more info).",
79 &surf_network_model_init_Vegas},
80 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
84 void surf_network_model_init_SMPI() {
85 xbt_die("Please activate SMPI support in cmake to use the SMPI network model.");
87 void surf_network_model_init_IB() {
88 xbt_die("Please activate SMPI support in cmake to use the IB network model.");
92 void surf_network_model_init_NS3() {
93 xbt_die("Please activate NS3 support in cmake and install the dependencies to use the NS3 network model.");
97 s_surf_model_description_t surf_cpu_model_description[] = {
98 {"Cas01", "Simplistic CPU model (time=size/power).", &surf_cpu_model_init_Cas01},
99 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
102 s_surf_model_description_t surf_host_model_description[] = {
103 {"default", "Default host model. Currently, CPU:Cas01 and network:LV08 (with cross traffic enabled)", &surf_host_model_init_current_default},
104 {"compound", "Host model that is automatically chosen if you change the network and CPU models", &surf_host_model_init_compound},
105 {"ptask_L07", "Host model somehow similar to Cas01+CM02 but allowing parallel tasks", &surf_host_model_init_ptask_L07},
106 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
109 s_surf_model_description_t surf_optimization_mode_description[] = {
110 {"Lazy", "Lazy action management (partial invalidation in lmm + heap in action remaining).", nullptr},
111 {"TI", "Trace integration. Highly optimized mode when using availability traces (only available for the Cas01 CPU model for now).", nullptr},
112 {"Full", "Full update of remaining and variables. Slow but may be useful when debugging.", nullptr},
113 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
116 s_surf_model_description_t surf_storage_model_description[] = {
117 {"default", "Simplistic storage model.", &surf_storage_model_init_default},
118 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
123 double surf_get_clock()
128 /* returns whether #file_path is a absolute file path. Surprising, isn't it ? */
129 static bool is_absolute_file_path(std::string file_path)
132 WIN32_FIND_DATA wfd = {0};
133 HANDLE hFile = FindFirstFile(file_path.c_str(), &wfd);
135 if (INVALID_HANDLE_VALUE == hFile)
141 return (file_path.c_str()[0] == '/');
145 std::ifstream* surf_ifsopen(std::string name)
147 xbt_assert(not name.empty());
149 std::ifstream* fs = new std::ifstream();
150 if (is_absolute_file_path(name)) { /* don't mess with absolute file names */
151 fs->open(name.c_str(), std::ifstream::in);
154 /* search relative files in the path */
155 for (auto const& path_elm : surf_path) {
156 std::string buff = path_elm + "/" + name;
157 fs->open(buff.c_str(), std::ifstream::in);
159 if (not fs->fail()) {
160 XBT_DEBUG("Found file at %s", buff.c_str());
168 FILE* surf_fopen(std::string name, const char* mode)
170 FILE *file = nullptr;
172 if (is_absolute_file_path(name)) /* don't mess with absolute file names */
173 return fopen(name.c_str(), mode);
175 /* search relative files in the path */
176 for (auto const& path_elm : surf_path) {
177 std::string buff = path_elm + "/" + name;
178 file = fopen(buff.c_str(), mode);
186 /** Displays the long description of all registered models, and quit */
187 void model_help(const char *category, s_surf_model_description_t * table)
189 printf("Long description of the %s models accepted by this simulator:\n", category);
190 for (int i = 0; table[i].name; i++)
191 printf(" %s: %s\n", table[i].name, table[i].description);
194 int find_model_description(s_surf_model_description_t* table, std::string name)
196 for (int i = 0; table[i].name; i++)
197 if (name == table[i].name)
200 if (not table[0].name)
201 xbt_die("No model is valid! This is a bug.");
203 std::string name_list = std::string(table[0].name);
204 for (int i = 1; table[i].name; i++)
205 name_list = name_list + ", " + table[i].name;
207 xbt_die("Model '%s' is invalid! Valid models are: %s.", name.c_str(), name_list.c_str());
211 void sg_version_check(int lib_version_major, int lib_version_minor, int lib_version_patch)
213 if ((lib_version_major != SIMGRID_VERSION_MAJOR) || (lib_version_minor != SIMGRID_VERSION_MINOR)) {
214 fprintf(stderr, "FATAL ERROR: Your program was compiled with SimGrid version %d.%d.%d, "
215 "and then linked against SimGrid %d.%d.%d. Please fix this.\n",
216 lib_version_major, lib_version_minor, lib_version_patch, SIMGRID_VERSION_MAJOR, SIMGRID_VERSION_MINOR,
217 SIMGRID_VERSION_PATCH);
220 if (lib_version_patch != SIMGRID_VERSION_PATCH) {
221 if (SIMGRID_VERSION_PATCH >= 90 || lib_version_patch >= 90) {
224 "FATAL ERROR: Your program was compiled with SimGrid version %d.%d.%d, "
225 "and then linked against SimGrid %d.%d.%d. \n"
226 "One of them is a development version, and should not be mixed with the stable release. Please fix this.\n",
227 lib_version_major, lib_version_minor, lib_version_patch, SIMGRID_VERSION_MAJOR, SIMGRID_VERSION_MINOR,
228 SIMGRID_VERSION_PATCH);
231 fprintf(stderr, "Warning: Your program was compiled with SimGrid version %d.%d.%d, "
232 "and then linked against SimGrid %d.%d.%d. Proceeding anyway.\n",
233 lib_version_major, lib_version_minor, lib_version_patch, SIMGRID_VERSION_MAJOR, SIMGRID_VERSION_MINOR,
234 SIMGRID_VERSION_PATCH);
238 void sg_version_get(int* ver_major, int* ver_minor, int* ver_patch)
240 *ver_major = SIMGRID_VERSION_MAJOR;
241 *ver_minor = SIMGRID_VERSION_MINOR;
242 *ver_patch = SIMGRID_VERSION_PATCH;
247 std::printf("This program was linked against %s (git: %s), found in %s.\n",
248 SIMGRID_VERSION_STRING, SIMGRID_GIT_VERSION, SIMGRID_INSTALL_PREFIX);
251 std::printf(" Model-checking support compiled in.\n");
253 std::printf(" Model-checking support disabled at compilation.\n");
257 std::printf(" NS3 support compiled in.\n");
259 std::printf(" NS3 support disabled at compilation.\n");
262 #if SIMGRID_HAVE_JEDULE
263 std::printf(" Jedule support compiled in.\n");
265 std::printf(" Jedule support disabled at compilation.\n");
269 std::printf(" Lua support compiled in.\n");
271 std::printf(" Lua support disabled at compilation.\n");
274 #if SIMGRID_HAVE_MALLOCATOR
275 std::printf(" Mallocator support compiled in.\n");
277 std::printf(" Mallocator support disabled at compilation.\n");
280 std::printf("\nTo cite SimGrid in a publication, please use:\n"
281 " Henri Casanova, Arnaud Giersch, Arnaud Legrand, Martin Quinson, Frédéric Suter. \n"
282 " Versatile, Scalable, and Accurate Simulation of Distributed Applications and Platforms. \n"
283 " Journal of Parallel and Distributed Computing, Elsevier, 2014, 74 (10), pp.2899-2917.\n");
284 std::printf("The pdf file and a BibTeX entry for LaTeX users can be found at http://hal.inria.fr/hal-01017319\n");
287 void surf_init(int *argc, char **argv)
289 if (USER_HOST_LEVEL != -1) // Already initialized
292 XBT_DEBUG("Create all Libs");
293 USER_HOST_LEVEL = simgrid::s4u::Host::extension_create(nullptr);
295 xbt_init(argc, argv);
297 sg_config_init(argc, argv);
305 simgrid::s4u::Engine::shutdown();
306 for (auto const& e : storage_types) {
307 simgrid::surf::StorageType* stype = e.second;
308 delete stype->properties;
309 delete stype->model_properties;
313 for (auto const& model : all_existing_models)
316 xbt_free(surf_plugin_description);
321 NOW = 0; /* Just in case the user plans to restart the simulation afterward */