1 /* Copyright (c) 2017-2019. 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 #ifndef SIMGRID_S4U_EXEC_HPP
7 #define SIMGRID_S4U_EXEC_HPP
9 #include <simgrid/forward.h>
10 #include <simgrid/s4u/Activity.hpp>
11 #include <simgrid/s4u/Actor.hpp>
19 /** Computation Activity, representing the asynchronous executions.
21 * They are generated from this_actor::exec_init() or Host::execute(), and can be used to model pools of threads or
24 class XBT_PUBLIC Exec : public Activity {
25 std::string name_ = "";
26 double priority_ = 1.0;
28 double timeout_ = 0.0;
29 std::string tracing_category_ = "";
30 std::atomic_int_fast32_t refcount_{0};
31 Host* host_ = nullptr;
35 virtual ~Exec() = default;
39 Exec(Exec const&) = delete;
40 Exec& operator=(Exec const&) = delete;
44 friend XBT_PUBLIC void intrusive_ptr_release(Exec* e);
45 friend XBT_PUBLIC void intrusive_ptr_add_ref(Exec* e);
47 static xbt::signal<void(Actor const&, Exec const&)> on_start;
48 static xbt::signal<void(Actor const&, Exec const&)> on_completion;
50 virtual Exec* start() override = 0;
51 virtual double get_remaining_ratio() = 0;
52 virtual ExecPtr set_host(Host* host) = 0;
54 Exec* wait() override;
55 Exec* wait_for(double timeout) override;
56 /*! take a vector of s4u::ExecPtr and return when one of them is finished.
57 * The return value is the rank of the first finished ExecPtr. */
58 static int wait_any(std::vector<ExecPtr>* execs) { return wait_any_for(execs, -1); }
59 /*! Same as wait_any, but with a timeout. If the timeout occurs, parameter last is returned.*/
60 static int wait_any_for(std::vector<ExecPtr>* execs, double timeout);
64 ExecPtr set_bound(double bound);
65 ExecPtr set_name(const std::string& name);
66 ExecPtr set_priority(double priority);
67 ExecPtr set_tracing_category(const std::string& category);
68 ExecPtr set_timeout(double timeout);
69 Exec* cancel() override;
70 const std::string& get_name() const { return name_; }
71 const char* get_cname() const { return name_.c_str(); }
72 Host* get_host() const;
73 unsigned int get_host_number() const;
74 double get_start_time() const;
75 double get_finish_time() const;
76 double get_cost() const;
79 class XBT_PUBLIC ExecSeq : public Exec {
80 double flops_amount_ = 0.0;
82 explicit ExecSeq(sg_host_t host, double flops_amount);
85 friend XBT_PUBLIC ExecPtr this_actor::exec_init(double flops_amount);
89 Exec* start() override;
91 ExecPtr set_host(Host* host) override;
94 double get_remaining() override;
95 double get_remaining_ratio() override;
98 class XBT_PUBLIC ExecPar : public Exec {
99 std::vector<s4u::Host*> hosts_;
100 std::vector<double> flops_amounts_;
101 std::vector<double> bytes_amounts_;
102 explicit ExecPar(const std::vector<s4u::Host*>& hosts, const std::vector<double>& flops_amounts,
103 const std::vector<double>& bytes_amounts);
104 ExecPtr set_host(Host*) override { /* parallel exec cannot be moved */ THROW_UNIMPLEMENTED; }
107 ~ExecPar() = default;
108 friend XBT_PUBLIC ExecPtr this_actor::exec_init(const std::vector<s4u::Host*>& hosts,
109 const std::vector<double>& flops_amounts,
110 const std::vector<double>& bytes_amounts);
111 double get_remaining() override;
112 double get_remaining_ratio() override;
113 Exec* start() override;
117 } // namespace simgrid
119 #endif /* SIMGRID_S4U_EXEC_HPP */