add user friendly wrapper to set priorities on I/Os

[simgrid.git] / include / simgrid / s4u / Host.hpp

diff --git a/include/simgrid/s4u/Host.hpp b/include/simgrid/s4u/Host.hpp
index 4280793..b3b1821 100644 (file)
--- a/include/simgrid/s4u/Host.hpp
+++ b/include/simgrid/s4u/Host.hpp
@@ -59,13 +59,13 @@ protected:
 public:
   /** Called on each newly created host */
   static xbt::signal<void(Host&)> on_creation;
-  /** Called just before destructing a host */
-  static xbt::signal<void(Host const&)> on_destruction;
   /** Called when the machine is turned on or off (called AFTER the change) */
   static xbt::signal<void(Host const&)> on_state_change;
   /** Called when the speed of the machine is changed (called AFTER the change)
    * (either because of a pstate switch or because of an external load event coming from the profile) */
   static xbt::signal<void(Host const&)> on_speed_change;
+  /** Called just before destructing a host */
+  static xbt::signal<void(Host const&)> on_destruction;
 
   virtual void destroy();
 #ifndef DOXYGEN
@@ -89,6 +89,19 @@ public:
   Host* set_cpu(kernel::resource::CpuImpl* cpu);
   kernel::resource::CpuImpl* get_cpu() const { return pimpl_cpu_; }
   kernel::routing::NetPoint* get_netpoint() const { return pimpl_netpoint_; }
+  /**
+   * @brief Callback to set CPU factor
+   *
+   * This callback offers a flexible way to create variability in CPU executions
+   *
+   * @param flops Execution size in flops
+   * @return Multiply factor
+   */
+  using CpuFactorCb = double(double flops);
+  /**
+   * @brief Configure the factor callback to the CPU associated to this host
+   */
+  Host* set_factor_cb(const std::function<CpuFactorCb>& cb);
 
   size_t get_actor_count() const;
   std::vector<ActorPtr> get_all_actors() const;
@@ -161,6 +174,8 @@ public:
   /**
    * @brief Describes how the CPU is shared between concurrent tasks
    *
+   * Note that the NONLINEAR callback is in the critical path of the solver, so it should be fast.
+   *
    * @param policy Sharing policy
    * @param cb Callback for NONLINEAR policies
    */
@@ -174,10 +189,10 @@ public:
    */
   double get_load() const;
 
-  int get_pstate_count() const;
-  int get_pstate() const;
-  double get_pstate_speed(int pstate_index) const;
-  Host* set_pstate(int pstate_index);
+  unsigned long get_pstate_count() const;
+  unsigned long get_pstate() const;
+  double get_pstate_speed(unsigned long pstate_index) const;
+  Host* set_pstate(unsigned long pstate_index);
   Host* set_coordinates(const std::string& coords);
 
   std::vector<Disk*> get_disks() const;
@@ -198,6 +213,9 @@ public:
   void add_disk(const Disk* disk);
   void remove_disk(const std::string& disk_name);
 
+  VirtualMachine* create_vm(const std::string& name, int core_amount);
+  VirtualMachine* create_vm(const std::string& name, int core_amount, size_t ramsize);
+
   void route_to(const Host* dest, std::vector<Link*>& links, double* latency) const;
   void route_to(const Host* dest, std::vector<kernel::resource::LinkImpl*>& links, double* latency) const;
 
@@ -210,7 +228,6 @@ public:
 #ifndef DOXYGEN
   XBT_ATTRIB_DEPRECATED_v331("Please use Comm::sendto()") void sendto(Host* dest, double byte_amount);
   XBT_ATTRIB_DEPRECATED_v331("Please use Comm::sendto_async()") CommPtr sendto_async(Host* dest, double byte_amount);
-  XBT_ATTRIB_DEPRECATED_v330("Please use Host::sendto()") void send_to(Host* dest, double byte_amount);
 #endif
 
   NetZone* get_englobing_zone() const;