1 /* Copyright (c) 2004-2022. 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 <simgrid/s4u/Engine.hpp>
7 #include <xbt/module.h>
10 #include "simgrid/sg_config.hpp"
11 #include "src/kernel/resource/profile/FutureEvtSet.hpp"
12 #include "src/kernel/resource/profile/Profile.hpp"
13 #include "src/surf/HostImpl.hpp"
14 #include "src/surf/surf_interface.hpp"
23 XBT_LOG_NEW_CATEGORY(surf, "All SURF categories");
24 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_kernel, surf, "Logging specific to SURF (kernel)");
30 simgrid::kernel::profile::FutureEvtSet future_evt_set;
31 std::vector<std::string> surf_path;
33 const std::vector<surf_model_description_t> surf_network_model_description = {
35 "Realistic network analytic model (slow-start modeled by multiplying latency by 13.01, bandwidth by .97; "
36 "bottleneck sharing uses a payload of S=20537 for evaluating RTT). ",
37 &surf_network_model_init_LegrandVelho},
39 "Simplistic network model where all communication take a constant time (one second). This model "
40 "provides the lowest realism, but is (marginally) faster.",
41 &surf_network_model_init_Constant},
43 "Realistic network model specifically tailored for HPC settings (accurate modeling of slow start with "
44 "correction factors on three intervals: < 1KiB, < 64 KiB, >= 64 KiB)",
45 &surf_network_model_init_SMPI},
46 {"IB", "Realistic network model specifically tailored for HPC settings, with Infiniband contention model",
47 &surf_network_model_init_IB},
49 "Legacy network analytic model (Very similar to LV08, but without corrective factors. The timings of "
50 "small messages are thus poorly modeled).",
51 &surf_network_model_init_CM02},
52 {"ns-3", "Network pseudo-model using the ns-3 tcp model instead of an analytic model",
53 &surf_network_model_init_NS3},
57 void surf_network_model_init_SMPI()
59 xbt_die("Please activate SMPI support in cmake to use the SMPI network model.");
61 void surf_network_model_init_IB()
63 xbt_die("Please activate SMPI support in cmake to use the IB network model.");
67 void surf_network_model_init_NS3()
69 xbt_die("Please activate ns-3 support in cmake and install the dependencies to use the NS3 network model.");
73 const std::vector<surf_model_description_t> surf_cpu_model_description = {
74 {"Cas01", "Simplistic CPU model (time=size/speed).", &surf_cpu_model_init_Cas01},
77 const std::vector<surf_model_description_t> surf_host_model_description = {
78 {"default", "Default host model. Currently, CPU:Cas01 and network:LV08 (with cross traffic enabled)",
79 &surf_host_model_init_current_default},
80 {"compound", "Host model that is automatically chosen if you change the network and CPU models",
81 &surf_host_model_init_compound},
82 {"ptask_L07", "Host model somehow similar to Cas01+CM02 but allowing parallel tasks",
83 &surf_host_model_init_ptask_L07},
86 const std::vector<surf_model_description_t> surf_optimization_mode_description = {
87 {"Lazy", "Lazy action management (partial invalidation in lmm + heap in action remaining).", nullptr},
89 "Trace integration. Highly optimized mode when using availability traces (only available for the Cas01 CPU "
92 {"Full", "Full update of remaining and variables. Slow but may be useful when debugging.", nullptr},
95 const std::vector<surf_model_description_t> surf_disk_model_description = {
96 {"default", "Simplistic disk model.", &surf_disk_model_init_default},
99 /* returns whether #file_path is an absolute file path. Surprising, isn't it ? */
100 static bool is_absolute_file_path(const std::string& file_path)
103 WIN32_FIND_DATA wfd = {0};
104 HANDLE hFile = FindFirstFile(file_path.c_str(), &wfd);
106 if (INVALID_HANDLE_VALUE == hFile)
112 return (file_path.c_str()[0] == '/');
116 std::ifstream* surf_ifsopen(const std::string& name)
118 xbt_assert(not name.empty());
120 auto* fs = new std::ifstream();
121 if (is_absolute_file_path(name)) { /* don't mess with absolute file names */
122 fs->open(name.c_str(), std::ifstream::in);
125 /* search relative files in the path */
126 for (auto const& path_elm : surf_path) {
127 std::string buff = path_elm + "/" + name;
128 fs->open(buff.c_str(), std::ifstream::in);
130 if (not fs->fail()) {
131 XBT_DEBUG("Found file at %s", buff.c_str());
139 FILE* surf_fopen(const std::string& name, const char* mode)
141 FILE* file = nullptr;
143 if (is_absolute_file_path(name)) /* don't mess with absolute file names */
144 return fopen(name.c_str(), mode);
146 /* search relative files in the path */
147 for (auto const& path_elm : surf_path) {
148 std::string buff = path_elm + "/" + name;
149 file = fopen(buff.c_str(), mode);
157 /** Displays the long description of all registered models, and quit */
158 void model_help(const char* category, const std::vector<surf_model_description_t>& table)
160 XBT_HELP("Long description of the %s models accepted by this simulator:", category);
161 for (auto const& item : table)
162 XBT_HELP(" %s: %s", item.name, item.description);
165 const surf_model_description_t* find_model_description(const std::vector<surf_model_description_t>& table,
166 const std::string& name)
168 if (auto pos = std::find_if(table.begin(), table.end(),
169 [&name](const surf_model_description_t& item) { return item.name == name; });
174 std::string name_list;
175 for (auto const& item : table) {
176 name_list += sep + item.name;
179 xbt_die("Model '%s' is invalid! Valid models are: %s.", name.c_str(), name_list.c_str());