1 #ifndef SIMGRID_S4U_TASK_H_
2 #define SIMGRID_S4U_TASK_H_
4 #include <simgrid/s4u/Activity.hpp>
5 #include <simgrid/s4u/Io.hpp>
6 #include <xbt/Extendable.hpp>
13 #include <xbt/asserts.h>
15 namespace simgrid::s4u {
18 using TaskPtr = boost::intrusive_ptr<Task>;
19 XBT_PUBLIC void intrusive_ptr_release(Task* o);
20 XBT_PUBLIC void intrusive_ptr_add_ref(Task* o);
22 using ExecTaskPtr = boost::intrusive_ptr<ExecTask>;
24 using CommTaskPtr = boost::intrusive_ptr<CommTask>;
26 using IoTaskPtr = boost::intrusive_ptr<IoTask>;
28 class XBT_PUBLIC Token : public xbt::Extendable<Token> {};
34 std::map<std::string, double> amount_ = {{"instance_0", 0}, {"dispatcher", 0}, {"collector", 0}};
35 std::map<std::string, int> queued_firings_ = {{"instance_0", 0}, {"dispatcher", 0}, {"collector", 0}};
36 std::map<std::string, int> running_instances_ = {{"instance_0", 0}, {"dispatcher", 0}, {"collector", 0}};
37 std::map<std::string, int> count_ = {{"instance_0", 0}, {"dispatcher", 0}, {"collector", 0}};
38 std::map<std::string, int> parallelism_degree_ = {{"instance_0", 1}, {"dispatcher", 1}, {"collector", 1}};
39 std::map<std::string, int> internal_bytes_to_send_ = {{"instance_0", 0}, {"dispatcher", 0}};
41 std::function<std::string()> load_balancing_function_;
43 std::set<Task*> successors_ = {};
44 std::map<Task*, unsigned int> predecessors_ = {};
45 std::atomic_int_fast32_t refcount_{0};
47 bool ready_to_run(std::string instance);
48 void receive(Task* source);
50 std::shared_ptr<Token> token_ = nullptr;
51 std::deque<std::map<TaskPtr, std::shared_ptr<Token>>> tokens_received_;
52 std::map<std::string, std::deque<ActivityPtr>> current_activities_ = {
53 {"instance_0", {}}, {"dispatcher", {}}, {"collector", {}}};
55 inline static xbt::signal<void(Task*)> on_start;
56 xbt::signal<void(Task*)> on_this_start;
57 inline static xbt::signal<void(Task*)> on_completion;
58 xbt::signal<void(Task*)> on_this_completion;
61 explicit Task(const std::string& name);
62 virtual ~Task() = default;
64 virtual void fire(std::string instance);
65 void complete(std::string instance);
67 void store_activity(ActivityPtr a, std::string instance) { current_activities_[instance].push_back(a); }
69 virtual void add_instances(int n);
70 virtual void remove_instances(int n);
73 void set_name(std::string name);
74 const std::string& get_name() const { return name_; }
75 const char* get_cname() const { return name_.c_str(); }
76 void set_amount(double amount, std::string instance = "instance_0");
77 double get_amount(std::string instance = "instance_0") const { return amount_.at(instance); }
78 int get_count(std::string instance = "collector") const { return count_.at(instance); }
79 void set_parallelism_degree(int n, std::string instance = "all");
80 int get_parallelism_degree(std::string instance = "instance_0") const { return parallelism_degree_.at(instance); }
81 void set_internal_bytes(int bytes, std::string instance = "instance_0");
82 double get_internal_bytes(std::string instance = "instance_0") const { return internal_bytes_to_send_.at(instance); }
83 void set_load_balancing_function(std::function<std::string()> func);
85 void set_token(std::shared_ptr<Token> token);
86 std::shared_ptr<Token> get_next_token_from(TaskPtr t) const { return tokens_received_.front().at(t); }
88 void add_successor(TaskPtr t);
89 void remove_successor(TaskPtr t);
90 void remove_all_successors();
91 const std::set<Task*>& get_successors() const { return successors_; }
93 void enqueue_firings(int n);
95 /** Add a callback fired before this task activity starts */
96 void on_this_start_cb(const std::function<void(Task*)>& func) { on_this_start.connect(func); }
97 /** Add a callback fired before a task activity starts.
98 * Triggered after the on_this_start function**/
99 static void on_start_cb(const std::function<void(Task*)>& cb) { on_start.connect(cb); }
100 /** Add a callback fired before this task activity ends */
101 void on_this_completion_cb(const std::function<void(Task*)>& func) { on_this_completion.connect(func); };
102 /** Add a callback fired after a task activity ends.
103 * Triggered after the on_this_end function, but before sending tokens to successors.**/
104 static void on_completion_cb(const std::function<void(Task*)>& cb) { on_completion.connect(cb); }
107 friend void intrusive_ptr_release(Task* o)
109 if (o->refcount_.fetch_sub(1, std::memory_order_release) == 1) {
110 std::atomic_thread_fence(std::memory_order_acquire);
114 friend void intrusive_ptr_add_ref(Task* o) { o->refcount_.fetch_add(1, std::memory_order_relaxed); }
118 class CommTask : public Task {
122 explicit CommTask(const std::string& name);
123 void fire(std::string instance) override;
126 static CommTaskPtr init(const std::string& name);
127 static CommTaskPtr init(const std::string& name, double bytes, Host* source, Host* destination);
129 CommTaskPtr set_source(Host* source);
130 Host* get_source() const { return source_; }
131 CommTaskPtr set_destination(Host* destination);
132 Host* get_destination() const { return destination_; }
133 CommTaskPtr set_bytes(double bytes);
134 double get_bytes() const { return get_amount("instance_0"); }
137 class ExecTask : public Task {
138 std::map<std::string, Host*> host_ = {{"instance_0", nullptr}, {"dispatcher", nullptr}, {"collector", nullptr}};
140 explicit ExecTask(const std::string& name);
141 void fire(std::string instance) override;
144 static ExecTaskPtr init(const std::string& name);
145 static ExecTaskPtr init(const std::string& name, double flops, Host* host);
147 ExecTaskPtr set_host(Host* host, std::string instance = "all");
148 Host* get_host(std::string instance = "instance_0") const { return host_.at(instance); }
149 ExecTaskPtr set_flops(double flops, std::string instance = "instance_0");
150 double get_flops(std::string instance = "instance_0") const { return get_amount(instance); }
152 void add_instances(int n) override;
153 void remove_instances(int n) override;
156 class IoTask : public Task {
159 explicit IoTask(const std::string& name);
160 void fire(std::string instance) override;
163 static IoTaskPtr init(const std::string& name);
164 static IoTaskPtr init(const std::string& name, double bytes, Disk* disk, Io::OpType type);
166 IoTaskPtr set_disk(Disk* disk);
167 Disk* get_disk() const { return disk_; }
168 IoTaskPtr set_bytes(double bytes);
169 double get_bytes() const { return get_amount("instance_0"); }
170 IoTaskPtr set_op_type(Io::OpType type);
171 Io::OpType get_op_type() const { return type_; }
173 } // namespace simgrid::s4u