+ * @brief Get the speed of the cpu associated to a host
+ *
+ * @param resource The surf host
+ * @param load [description]
+ *
+ * @return [description]
+ */
+XBT_PUBLIC(double) surf_host_get_speed(surf_resource_t resource, double load);
+
+/**
+ * @brief Get the available speed of cpu associated to a host
+ *
+ * @param resource The surf host
+ * @return [description]
+ */
+XBT_PUBLIC(double) surf_host_get_available_speed(surf_resource_t resource);
+
+/**
+ * @brief Get the number of cores of the cpu associated to a host
+ *
+ * @param resource The surf host
+ * @return The number of cores
+ */
+XBT_PUBLIC(int) surf_host_get_core(surf_resource_t resource);
+
+/**
+ * @brief Execute some quantity of computation
+ *
+ * @param resource The surf host
+ * @param size The value of the processing amount (in flop) needed to process
+ *
+ * @return The surf action corresponding to the processing
+ */
+XBT_PUBLIC(surf_action_t) surf_host_execute(surf_resource_t resource, double size);
+
+/**
+ * @brief Make the host sleep
+ *
+ * @param resource The surf host
+ * @param duration The number of seconds to sleep
+ * @return The surf action corresponding to the sleep
+ */
+XBT_PUBLIC(surf_action_t) surf_host_sleep(surf_resource_t resource, double duration);
+
+/**
+ * @brief Open a file on an host
+ *
+ * @param host The surf host
+ * @param fullpath The path to the file
+ * @return The surf action corresponding to the openning
+ */
+XBT_PUBLIC(surf_action_t) surf_host_open(surf_resource_t host, const char* fullpath);
+
+/**
+ * @brief Close a file descriptor on an host
+ *
+ * @param host The surf host
+ * @param fd The file descriptor
+ *
+ * @return The surf action corresponding to the closing
+ */
+XBT_PUBLIC(surf_action_t) surf_host_close(surf_resource_t host, surf_file_t fd);
+
+/**
+ * @brief Read a file
+ *
+ * @param host The surf host
+ * @param fd The file descriptor to read
+ * @param size The size in bytes to read
+ * @return The surf action corresponding to the reading
+ */
+XBT_PUBLIC(surf_action_t) surf_host_read(surf_resource_t host, surf_file_t fd, sg_size_t size);
+
+/**
+ * @brief Write a file
+ *
+ * @param host The surf host
+ * @param fd The file descriptor to write
+ * @param size The size in bytes to write
+ * @return The surf action corresponding to the writing
+ */
+XBT_PUBLIC(surf_action_t) surf_host_write(surf_resource_t host, surf_file_t fd, sg_size_t size);
+
+/**
+ * @brief Get the informations of a file descriptor
+ * @details The returned xbt_dynar_t contains:
+ * - the size of the file,
+ * - the mount point,
+ * - the storage name,
+ * - the storage typeId,
+ * - the storage content type
+ *
+ * @param host The surf host
+ * @param fd The file descriptor
+ * @return An xbt_dynar_t with the file informations
+ */
+XBT_PUBLIC(xbt_dynar_t) surf_host_get_info(surf_resource_t host, surf_file_t fd);
+
+/**
+ * @brief Get the available space of the storage at the mount point
+ *
+ * @param resource The surf host
+ * @param name The mount point
+ * @return The amount of available space in bytes
+ */
+XBT_PUBLIC(sg_size_t) surf_host_get_free_size(surf_resource_t resource, const char* name);
+
+/**
+ * @brief Get the used space of the storage at the mount point
+ *
+ * @param resource The surf host
+ * @param name The mount point
+ * @return The amount of used space in bytes
+ */
+XBT_PUBLIC(sg_size_t) surf_host_get_used_size(surf_resource_t resource, const char* name);
+
+/**
+ * @brief Get the VMs hosted on the host
+ *
+ * @param resource The surf host
+ * @return The list of VMs on the host
+ */
+XBT_PUBLIC(xbt_dynar_t) surf_host_get_vms(surf_resource_t resource);
+
+/**
+ * @brief [brief description]
+ * @details [long description]
+ *
+ * @param resource [description]
+ * @param params [description]
+ */
+XBT_PUBLIC(void) surf_host_get_params(surf_resource_t resource, ws_params_t params);
+
+/**
+ * @brief [brief description]
+ * @details [long description]
+ *
+ * @param resource [description]
+ * @param params [description]
+ */
+XBT_PUBLIC(void) surf_host_set_params(surf_resource_t resource, ws_params_t params);
+
+/**
+ * @brief Destroy a VM
+ *
+ * @param resource The surf vm
+ */
+XBT_PUBLIC(void) surf_vm_destroy(surf_resource_t resource);
+
+/**
+ * @brief Suspend a VM
+ *
+ * @param resource The surf vm
+ */
+XBT_PUBLIC(void) surf_vm_suspend(surf_resource_t resource);
+
+/**
+ * @brief Resume a VM
+ *
+ * @param resource The surf vm
+ */
+XBT_PUBLIC(void) surf_vm_resume(surf_resource_t resource);
+
+/**
+ * @brief Save the VM (Not yet implemented)
+ *
+ * @param resource The surf vm
+ */
+XBT_PUBLIC(void) surf_vm_save(surf_resource_t resource);
+
+/**
+ * @brief Restore the VM (Not yet implemented)
+ *
+ * @param resource The surf vm
+ */
+XBT_PUBLIC(void) surf_vm_restore(surf_resource_t resource);
+
+/**
+ * @brief Migrate the VM to the destination host
+ *
+ * @param resource The surf vm
+ * @param ind_vm_ws_dest The destination host
+ */
+XBT_PUBLIC(void) surf_vm_migrate(surf_resource_t resource, surf_resource_t ind_vm_ws_dest);
+
+/**
+ * @brief Get the physical machine hosting the VM
+ *
+ * @param resource The surf vm
+ * @return The physical machine hosting the VM
+ */
+XBT_PUBLIC(surf_resource_t) surf_vm_get_pm(surf_resource_t resource);
+
+/**
+ * @brief [brief description]
+ * @details [long description]
+ *
+ * @param resource [description]
+ * @param bound [description]
+ */
+XBT_PUBLIC(void) surf_vm_set_bound(surf_resource_t resource, double bound);
+
+/**
+ * @brief [brief description]
+ * @details [long description]
+ *
+ * @param resource [description]
+ * @param cpu [description]
+ * @param mask [description]
+ */
+XBT_PUBLIC(void) surf_vm_set_affinity(surf_resource_t resource, surf_resource_t cpu, unsigned long mask);
+
+/**
+ * @brief Execute some quantity of computation
+ *
+ * @param cpu The surf cpu
+ * @param size The value of the processing amount (in flop) needed to process
+ * @return The surf action corresponding to the processing
+ */
+XBT_PUBLIC(surf_action_t) surf_cpu_execute(surf_resource_t cpu, double size);
+
+/**
+ * @brief Make the cpu sleep for duration (in seconds)
+ * @details [long description]
+ *
+ * @param cpu The surf cpu
+ * @param duration The number of seconds to sleep
+ * @return The surf action corresponding to the sleeping
+ */
+XBT_PUBLIC(surf_action_t) surf_cpu_sleep(surf_resource_t cpu, double duration);
+
+/**
+ * @brief Get the host power peak
+ * @details [long description]
+ *
+ * @param host The surf host
+ * @return The power peak
+ */
+XBT_PUBLIC(double) surf_host_get_current_power_peak(surf_resource_t host);
+
+/**
+ * @brief [brief description]
+ * @details [long description]
+ *
+ * @param host [description]
+ * @param pstate_index [description]
+ *
+ * @return [description]
+ */
+XBT_PUBLIC(double) surf_host_get_power_peak_at(surf_resource_t host, int pstate_index);
+
+/**
+ * @brief [brief description]
+ * @details [long description]
+ *
+ * @param host [description]
+ * @return [description]
+ */
+XBT_PUBLIC(int) surf_host_get_nb_pstates(surf_resource_t host);
+
+XBT_PUBLIC(void) surf_host_set_pstate(surf_resource_t host, int pstate_index);
+XBT_PUBLIC(int) surf_host_get_pstate(surf_resource_t host);
+XBT_PUBLIC(double) surf_host_get_wattmin_at(surf_resource_t resource, int pstate);
+XBT_PUBLIC(double) surf_host_get_wattmax_at(surf_resource_t resource, int pstate);
+
+/**
+ * @brief Get the consumed energy (in joules) of an host
+ *
+ * @param host The surf host
+ * @return The consumed energy
+ */
+XBT_PUBLIC(double) surf_host_get_consumed_energy(surf_resource_t host);
+
+/**
+ * @brief Get the list of storages mounted on an host
+ *
+ * @param host The surf host
+ * @return Dictionary of mount point, Storage
+ */
+XBT_PUBLIC(xbt_dict_t) surf_host_get_mounted_storage_list(surf_resource_t host);
+
+/**
+ * @brief Get the list of storages attached to an host
+ *
+ * @param host The surf host
+ * @return Dictionary of storage