1 /* Copyright (c) 2004-2019. 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/kernel/resource/profile/FutureEvtSet.hpp"
11 #include "src/kernel/resource/profile/Profile.hpp"
12 #include "src/simgrid/version.h"
13 #include "src/surf/HostImpl.hpp"
14 #include "src/surf/xml/platf.hpp"
15 #include "surf/surf.hpp"
16 #include "xbt/module.h"
25 XBT_LOG_NEW_CATEGORY(surf, "All SURF categories");
26 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_kernel, surf, "Logging specific to SURF (kernel)");
32 std::vector<simgrid::kernel::resource::Model*> all_existing_models; /* to destroy models correctly */
34 simgrid::kernel::profile::FutureEvtSet future_evt_set;
35 std::vector<std::string> surf_path;
36 /** set of hosts for which one want to be notified if they ever restart. */
37 std::set<std::string> watched_hosts;
38 extern std::map<std::string, simgrid::kernel::resource::StorageType*> storage_types;
40 std::vector<surf_model_description_t>* surf_plugin_description = nullptr;
42 static void XBT_ATTRIB_DESTRUCTOR(800) simgrid_free_plugin_description()
44 delete surf_plugin_description;
45 surf_plugin_description = nullptr;
48 XBT_PUBLIC void simgrid_add_plugin_description(const char* name, const char* description, void_f_void_t init_fun)
50 if (not surf_plugin_description)
51 surf_plugin_description = new std::vector<surf_model_description_t>;
52 surf_plugin_description->emplace_back(surf_model_description_t{name, description, init_fun});
55 /* Don't forget to update the option description in smx_config when you change this */
56 const std::vector<surf_model_description_t> surf_network_model_description = {
57 {"LV08", "Realistic network analytic model (slow-start modeled by multiplying latency by 13.01, bandwidth by .97; "
58 "bottleneck sharing uses a payload of S=20537 for evaluating RTT). ",
59 &surf_network_model_init_LegrandVelho},
60 {"Constant", "Simplistic network model where all communication take a constant time (one second). This model "
61 "provides the lowest realism, but is (marginally) faster.",
62 &surf_network_model_init_Constant},
63 {"SMPI", "Realistic network model specifically tailored for HPC settings (accurate modeling of slow start with "
64 "correction factors on three intervals: < 1KiB, < 64 KiB, >= 64 KiB)",
65 &surf_network_model_init_SMPI},
66 {"IB", "Realistic network model specifically tailored for HPC settings, with Infiniband contention model",
67 &surf_network_model_init_IB},
68 {"CM02", "Legacy network analytic model (Very similar to LV08, but without corrective factors. The timings of "
69 "small messages are thus poorly modeled).",
70 &surf_network_model_init_CM02},
71 {"NS3", "Network pseudo-model using the NS3 tcp model instead of an analytic model", &surf_network_model_init_NS3},
75 void surf_network_model_init_SMPI() {
76 xbt_die("Please activate SMPI support in cmake to use the SMPI network model.");
78 void surf_network_model_init_IB() {
79 xbt_die("Please activate SMPI support in cmake to use the IB network model.");
83 void surf_network_model_init_NS3() {
84 xbt_die("Please activate NS3 support in cmake and install the dependencies to use the NS3 network model.");
88 const std::vector<surf_model_description_t> surf_cpu_model_description = {
89 {"Cas01", "Simplistic CPU model (time=size/power).", &surf_cpu_model_init_Cas01},
92 const std::vector<surf_model_description_t> surf_host_model_description = {
93 {"default", "Default host model. Currently, CPU:Cas01 and network:LV08 (with cross traffic enabled)",
94 &surf_host_model_init_current_default},
95 {"compound", "Host model that is automatically chosen if you change the network and CPU models",
96 &surf_host_model_init_compound},
97 {"ptask_L07", "Host model somehow similar to Cas01+CM02 but allowing parallel tasks",
98 &surf_host_model_init_ptask_L07},
101 const std::vector<surf_model_description_t> surf_optimization_mode_description = {
102 {"Lazy", "Lazy action management (partial invalidation in lmm + heap in action remaining).", nullptr},
103 {"TI", "Trace integration. Highly optimized mode when using availability traces (only available for the Cas01 CPU "
106 {"Full", "Full update of remaining and variables. Slow but may be useful when debugging.", nullptr},
109 const std::vector<surf_model_description_t> surf_storage_model_description = {
110 {"default", "Simplistic storage model.", &surf_storage_model_init_default},
115 double surf_get_clock()
120 /* returns whether #file_path is a absolute file path. Surprising, isn't it ? */
121 static bool is_absolute_file_path(const std::string& file_path)
124 WIN32_FIND_DATA wfd = {0};
125 HANDLE hFile = FindFirstFile(file_path.c_str(), &wfd);
127 if (INVALID_HANDLE_VALUE == hFile)
133 return (file_path.c_str()[0] == '/');
137 std::ifstream* surf_ifsopen(const std::string& name)
139 xbt_assert(not name.empty());
141 std::ifstream* fs = new std::ifstream();
142 if (is_absolute_file_path(name)) { /* don't mess with absolute file names */
143 fs->open(name.c_str(), std::ifstream::in);
146 /* search relative files in the path */
147 for (auto const& path_elm : surf_path) {
148 std::string buff = path_elm + "/" + name;
149 fs->open(buff.c_str(), std::ifstream::in);
151 if (not fs->fail()) {
152 XBT_DEBUG("Found file at %s", buff.c_str());
160 FILE* surf_fopen(const std::string& name, const char* mode)
162 FILE *file = nullptr;
164 if (is_absolute_file_path(name)) /* don't mess with absolute file names */
165 return fopen(name.c_str(), mode);
167 /* search relative files in the path */
168 for (auto const& path_elm : surf_path) {
169 std::string buff = path_elm + "/" + name;
170 file = fopen(buff.c_str(), mode);
178 /** Displays the long description of all registered models, and quit */
179 void model_help(const char* category, const std::vector<surf_model_description_t>& table)
181 XBT_HELP("Long description of the %s models accepted by this simulator:", category);
182 for (auto const& item : table)
183 XBT_HELP(" %s: %s", item.name, item.description);
186 int find_model_description(const std::vector<surf_model_description_t>& table, const std::string& name)
188 auto pos = std::find_if(table.begin(), table.end(),
189 [&name](const surf_model_description_t& item) { return item.name == name; });
190 if (pos != table.end())
191 return std::distance(table.begin(), pos);
194 xbt_die("No model is valid! This is a bug.");
197 std::string name_list;
198 for (auto const& item : table) {
199 name_list += sep + item.name;
203 xbt_die("Model '%s' is invalid! Valid models are: %s.", name.c_str(), name_list.c_str());
207 void sg_version_check(int lib_version_major, int lib_version_minor, int lib_version_patch)
209 if ((lib_version_major != SIMGRID_VERSION_MAJOR) || (lib_version_minor != SIMGRID_VERSION_MINOR)) {
210 fprintf(stderr, "FATAL ERROR: Your program was compiled with SimGrid version %d.%d.%d, "
211 "and then linked against SimGrid %d.%d.%d. Please fix this.\n",
212 lib_version_major, lib_version_minor, lib_version_patch, SIMGRID_VERSION_MAJOR, SIMGRID_VERSION_MINOR,
213 SIMGRID_VERSION_PATCH);
216 if (lib_version_patch != SIMGRID_VERSION_PATCH) {
217 if (SIMGRID_VERSION_PATCH > 89 || lib_version_patch > 89) {
220 "FATAL ERROR: Your program was compiled with SimGrid version %d.%d.%d, "
221 "and then linked against SimGrid %d.%d.%d. \n"
222 "One of them is a development version, and should not be mixed with the stable release. Please fix this.\n",
223 lib_version_major, lib_version_minor, lib_version_patch, SIMGRID_VERSION_MAJOR, SIMGRID_VERSION_MINOR,
224 SIMGRID_VERSION_PATCH);
227 fprintf(stderr, "Warning: Your program was compiled with SimGrid version %d.%d.%d, "
228 "and then linked against SimGrid %d.%d.%d. Proceeding anyway.\n",
229 lib_version_major, lib_version_minor, lib_version_patch, SIMGRID_VERSION_MAJOR, SIMGRID_VERSION_MINOR,
230 SIMGRID_VERSION_PATCH);
234 void sg_version_get(int* ver_major, int* ver_minor, int* ver_patch)
236 *ver_major = SIMGRID_VERSION_MAJOR;
237 *ver_minor = SIMGRID_VERSION_MINOR;
238 *ver_patch = SIMGRID_VERSION_PATCH;
243 XBT_HELP("This program was linked against %s (git: %s), found in %s.", SIMGRID_VERSION_STRING, SIMGRID_GIT_VERSION,
244 SIMGRID_INSTALL_PREFIX);
247 XBT_HELP(" Model-checking support compiled in.");
249 XBT_HELP(" Model-checking support disabled at compilation.");
253 XBT_HELP(" NS3 support compiled in.");
255 XBT_HELP(" NS3 support disabled at compilation.");
258 #if SIMGRID_HAVE_JEDULE
259 XBT_HELP(" Jedule support compiled in.");
261 XBT_HELP(" Jedule support disabled at compilation.");
265 XBT_HELP(" Lua support compiled in.");
267 XBT_HELP(" Lua support disabled at compilation.");
270 #if SIMGRID_HAVE_MALLOCATOR
271 XBT_HELP(" Mallocator support compiled in.");
273 XBT_HELP(" Mallocator support disabled at compilation.");
276 XBT_HELP("\nTo cite SimGrid in a publication, please use:\n"
277 " Henri Casanova, Arnaud Giersch, Arnaud Legrand, Martin Quinson, Frédéric Suter. \n"
278 " Versatile, Scalable, and Accurate Simulation of Distributed Applications and Platforms. \n"
279 " Journal of Parallel and Distributed Computing, Elsevier, 2014, 74 (10), pp.2899-2917.\n"
280 "The pdf file and a BibTeX entry for LaTeX users can be found at http://hal.inria.fr/hal-01017319");
283 void surf_init(int *argc, char **argv)
285 if (USER_HOST_LEVEL != -1) // Already initialized
288 XBT_DEBUG("Create all Libs");
289 USER_HOST_LEVEL = simgrid::s4u::Host::extension_create(nullptr);
291 xbt_init(argc, argv);
293 sg_config_init(argc, argv);
301 simgrid::s4u::Engine::shutdown();
302 for (auto const& e : storage_types) {
303 simgrid::kernel::resource::StorageType* stype = e.second;
304 delete stype->properties;
305 delete stype->model_properties;
309 for (auto const& model : all_existing_models)
315 NOW = 0; /* Just in case the user plans to restart the simulation afterward */