1 /* Copyright (c) 2013-2022. 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 "src/kernel/resource/NetworkModel.hpp"
7 #include "src/surf/HostImpl.hpp"
23 class XBT_PRIVATE HostL07Model;
24 class XBT_PRIVATE CpuL07Model;
25 class XBT_PRIVATE NetworkL07Model;
27 class XBT_PRIVATE CpuL07;
28 class XBT_PRIVATE LinkL07;
30 class XBT_PRIVATE L07Action;
35 class HostL07Model : public HostModel {
37 HostL07Model(const std::string& name, lmm::System* sys);
38 HostL07Model(const HostL07Model&) = delete;
39 HostL07Model& operator=(const HostL07Model&) = delete;
41 double next_occurring_event(double now) override;
42 void update_actions_state(double now, double delta) override;
43 Action* execute_thread(const s4u::Host* host, double flops_amount, int thread_count) override { return nullptr; }
44 CpuAction* execute_parallel(const std::vector<s4u::Host*>& host_list, const double* flops_amount,
45 const double* bytes_amount, double rate) override;
48 class CpuL07Model : public CpuModel {
50 CpuL07Model(const std::string& name, HostL07Model* hmodel, lmm::System* sys);
51 CpuL07Model(const CpuL07Model&) = delete;
52 CpuL07Model& operator=(const CpuL07Model&) = delete;
53 ~CpuL07Model() override;
54 void update_actions_state(double /*now*/, double /*delta*/) override{
55 /* this action is done by HostL07Model which shares the LMM system with the CPU model
56 * Overriding to an empty function here allows us to handle the Cpu07Model as a regular
57 * method in EngineImpl::presolve */
60 CpuImpl* create_cpu(s4u::Host* host, const std::vector<double>& speed_per_pstate) override;
61 HostL07Model* hostModel_;
64 class NetworkL07Model : public NetworkModel {
66 NetworkL07Model(const std::string& name, HostL07Model* hmodel, lmm::System* sys);
67 NetworkL07Model(const NetworkL07Model&) = delete;
68 NetworkL07Model& operator=(const NetworkL07Model&) = delete;
69 ~NetworkL07Model() override;
70 StandardLinkImpl* create_link(const std::string& name, const std::vector<double>& bandwidths) final;
71 StandardLinkImpl* create_wifi_link(const std::string& name, const std::vector<double>& bandwidths) override;
73 Action* communicate(s4u::Host* src, s4u::Host* dst, double size, double rate) override;
74 void update_actions_state(double /*now*/, double /*delta*/) override{
75 /* this action is done by HostL07Model which shares the LMM system with the CPU model
76 * Overriding to an empty function here allows us to handle the Cpu07Model as a regular
77 * method in EngineImpl::presolve */
80 HostL07Model* hostModel_;
87 class CpuL07 : public CpuImpl {
89 using CpuImpl::CpuImpl;
90 CpuL07(const CpuL07&) = delete;
91 CpuL07& operator=(const CpuL07&) = delete;
93 void apply_event(profile::Event* event, double value) override;
94 CpuAction* execution_start(double size, double user_bound) override;
95 CpuAction* execution_start(double, int, double) override
100 CpuAction* sleep(double duration) override;
103 void on_speed_change() override;
106 class LinkL07 : public StandardLinkImpl {
108 LinkL07(const std::string& name, double bandwidth, lmm::System* system);
109 LinkL07(const LinkL07&) = delete;
110 LinkL07& operator=(const LinkL07&) = delete;
112 void apply_event(profile::Event* event, double value) override;
113 void set_bandwidth(double value) override;
114 void set_latency(double value) override;
120 class L07Action : public CpuAction {
121 std::vector<s4u::Host*> hostList_;
122 bool free_arrays_ = false; // By default, computationAmount_ and friends are freed by caller. But not for sequential
123 // exec and regular comms
124 const double* computationAmount_; /* pointer to the data that lives in s4u action -- do not free unless if
126 const double* communicationAmount_; /* pointer to the data that lives in s4u action -- do not free unless if
131 friend CpuAction* CpuL07::execution_start(double size, double user_bound);
132 friend CpuAction* CpuL07::sleep(double duration);
133 friend CpuAction* HostL07Model::execute_parallel(const std::vector<s4u::Host*>& host_list, const double* flops_amount,
134 const double* bytes_amount, double rate);
135 friend Action* NetworkL07Model::communicate(s4u::Host* src, s4u::Host* dst, double size, double rate);
137 * @brief Calculate the CPU bound for the parallel task
139 * The task is bounded by the slowest CPU running the ptask, considering the current pstate of each CPU.
140 * Return MAX_DOUBLE if ptask has no computation.
142 double calculateCpuBound();
145 * @brief Calculate the network bound for the parallel task
147 * The network bound depends on the largest latency between the communication in the ptask.
148 * Return MAX_DOUBLE if latency is 0 (or ptask doesn't have any communication)
150 double calculateNetworkBound();
153 L07Action() = delete;
154 L07Action(Model* model, const std::vector<s4u::Host*>& host_list, const double* flops_amount,
155 const double* bytes_amount, double rate);
156 L07Action(const L07Action&) = delete;
157 L07Action& operator=(const L07Action&) = delete;
158 ~L07Action() override;
161 double get_latency() const { return latency_; }
162 void set_latency(double latency) { latency_ = latency; }
163 void update_latency(double delta, double precision) { double_update(&latency_, delta, precision); }
166 } // namespace resource
167 } // namespace kernel
168 } // namespace simgrid
170 #endif /* HOST_L07_HPP_ */