+/** @brief Get the speed of the cpu associated to a host */
+XBT_PUBLIC(double) surf_host_get_speed(sg_host_t resource, double load);
+
+/** @brief Get the available speed of cpu associated to a host */
+XBT_PUBLIC(double) surf_host_get_available_speed(sg_host_t host);
+
+/** @brief Get the number of cores of the cpu associated to a host */
+XBT_PUBLIC(int) surf_host_get_core(sg_host_t host);
+
+/** @brief Create a computation action on the given host */
+XBT_PUBLIC(surf_action_t) surf_host_execute(sg_host_t host, double size);
+
+/** @brief Create a sleep action on the given host */
+XBT_PUBLIC(surf_action_t) surf_host_sleep(sg_host_t host, double duration);
+
+/** @brief Create a file opening action on the given host */
+XBT_PUBLIC(surf_action_t) surf_host_open(sg_host_t host, const char* fullpath);
+
+/** @brief Create a file closing action on the given host */
+XBT_PUBLIC(surf_action_t) surf_host_close(sg_host_t host, surf_file_t fd);
+
+/** @brief Create a file reading action on the given host */
+XBT_PUBLIC(surf_action_t) surf_host_read(sg_host_t host, surf_file_t fd, sg_size_t size);
+
+/** @brief Create a file writing action on the given host */
+XBT_PUBLIC(surf_action_t) surf_host_write(sg_host_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(sg_host_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(sg_host_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(sg_host_t resource, const char* name);
+
+/** @brief Get the list of VMs hosted on the host */
+XBT_PUBLIC(xbt_dynar_t) surf_host_get_vms(sg_host_t resource);
+
+/** @brief Retrieve the params of that VM
+ * @details You can use fields ramsize and overcommit on a PM, too.
+ */
+XBT_PUBLIC(void) surf_host_get_params(sg_host_t resource, vm_params_t params);
+
+/** @brief Sets the params of that VM/PM
+ * @details You can use fields ramsize and overcommit on a PM, too.
+ */
+XBT_PUBLIC(void) surf_host_set_params(sg_host_t resource, vm_params_t params);
+
+/**
+ * @brief Destroy a VM
+ *
+ * @param resource The surf vm
+ */
+XBT_PUBLIC(void) surf_vm_destroy(sg_host_t resource);
+
+/** @brief Suspend a VM */
+XBT_PUBLIC(void) surf_vm_suspend(sg_host_t resource);
+
+/** @brief Resume a VM */
+XBT_PUBLIC(void) surf_vm_resume(sg_host_t resource);
+
+/**
+ * @brief Save the VM (Not yet implemented)
+ *
+ * @param resource The surf vm
+ */
+XBT_PUBLIC(void) surf_vm_save(sg_host_t resource);
+
+/**
+ * @brief Restore the VM (Not yet implemented)
+ *
+ * @param resource The surf vm
+ */
+XBT_PUBLIC(void) surf_vm_restore(sg_host_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(sg_host_t resource, sg_host_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(sg_host_t) surf_vm_get_pm(sg_host_t resource);
+
+/**
+ * @brief [brief description]
+ * @details [long description]
+ *
+ * @param resource [description]
+ * @param bound [description]
+ */
+XBT_PUBLIC(void) surf_vm_set_bound(sg_host_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(sg_host_t resource, sg_host_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(sg_host_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(sg_host_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(sg_host_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(sg_host_t host, int pstate_index);
+
+/**
+ * @brief [brief description]
+ * @details [long description]
+ *
+ * @param host [description]
+ * @return [description]
+ */
+XBT_PUBLIC(int) surf_host_get_nb_pstates(sg_host_t host);
+
+XBT_PUBLIC(void) surf_host_set_pstate(sg_host_t host, int pstate_index);
+XBT_PUBLIC(int) surf_host_get_pstate(sg_host_t host);
+XBT_PUBLIC(double) surf_host_get_wattmin_at(sg_host_t resource, int pstate);
+XBT_PUBLIC(double) surf_host_get_wattmax_at(sg_host_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(sg_host_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(sg_host_t host);
+
+/**
+ * @brief Get the list of storages attached to an host
+ *
+ * @param host The surf host
+ * @return Dictionary of storage
+ */
+XBT_PUBLIC(xbt_dynar_t) surf_host_get_attached_storage_list(sg_host_t host);
+
+/**
+ * @brief Unlink a file descriptor
+ *
+ * @param host The surf host
+ * @param fd The file descriptor
+ *
+ * @return 0 if failed to unlink, 1 otherwise
+ */
+XBT_PUBLIC(int) surf_host_unlink(sg_host_t host, surf_file_t fd);
+
+/**
+ * @brief Get the size of a file on a host
+ *
+ * @param host The surf host
+ * @param fd The file descriptor
+ *
+ * @return The size in bytes of the file
+ */
+XBT_PUBLIC(size_t) surf_host_get_size(sg_host_t host, surf_file_t fd);