* Model *
*********/
-XBT_PUBLIC_DATA simgrid::kernel::resource::DiskModel* surf_disk_model;
-
namespace simgrid {
namespace kernel {
namespace resource {
*********/
class DiskModel : public Model {
public:
- DiskModel();
+ explicit DiskModel(const std::string& name);
DiskModel(const DiskModel&) = delete;
DiskModel& operator=(const DiskModel&) = delete;
- ~DiskModel() override;
- virtual DiskImpl* createDisk(const std::string& id, double read_bw, double write_bw) = 0;
+ virtual DiskImpl* create_disk(const std::string& name, double read_bandwidth, double write_bandwidth) = 0;
+
+ virtual DiskAction* io_start(const DiskImpl* disk, sg_size_t size, s4u::Io::OpType type) = 0;
};
/************
* Resource *
************/
-class DiskImpl : public Resource, public xbt::PropertyHolder {
- s4u::Host* host_ = nullptr;
+class DiskImpl : public Resource_T<DiskImpl>, public xbt::PropertyHolder {
s4u::Disk piface_;
- double read_bw_;
- double write_bw_;
- lmm::Constraint* constraint_write_; /* Constraint for maximum write bandwidth*/
- lmm::Constraint* constraint_read_; /* Constraint for maximum read bandwidth*/
+ s4u::Host* host_ = nullptr;
+ lmm::Constraint* constraint_write_ = nullptr; /* Constraint for maximum write bandwidth*/
+ lmm::Constraint* constraint_read_ = nullptr; /* Constraint for maximum read bandwidth*/
+ std::unordered_map<s4u::Disk::Operation, s4u::Disk::SharingPolicy> sharing_policy_ = {
+ {s4u::Disk::Operation::READ, s4u::Disk::SharingPolicy::LINEAR},
+ {s4u::Disk::Operation::WRITE, s4u::Disk::SharingPolicy::LINEAR},
+ {s4u::Disk::Operation::READWRITE, s4u::Disk::SharingPolicy::LINEAR}};
+ std::unordered_map<s4u::Disk::Operation, s4u::NonLinearResourceCb> sharing_policy_cb_ = {};
+
+ void apply_sharing_policy_cfg();
protected:
~DiskImpl() override = default; // Disallow direct deletion. Call destroy() instead.
public:
- DiskImpl(Model* model, const std::string& name, kernel::lmm::System* maxmin_system, double read_bw, double bwrite_bw);
+ Metric read_bw_ = {0.0, 0, nullptr};
+ Metric write_bw_ = {0.0, 0, nullptr};
+
+ explicit DiskImpl(const std::string& name, double read_bandwidth, double write_bandwidth);
DiskImpl(const DiskImpl&) = delete;
DiskImpl& operator=(const DiskImpl&) = delete;
/** @brief Public interface */
const s4u::Disk* get_iface() const { return &piface_; }
s4u::Disk* get_iface() { return &piface_; }
+ DiskImpl* set_host(s4u::Host* host);
s4u::Host* get_host() const { return host_; }
- void set_host(s4u::Host* host) { host_ = host; }
- double get_read_bandwidth() const { return read_bw_; }
- double get_write_bandwidth() const { return write_bw_; }
+ virtual void set_read_bandwidth(double read_bw) = 0;
+ double get_read_bandwidth() const { return read_bw_.peak * read_bw_.scale; }
+
+ virtual void set_write_bandwidth(double write_bw) = 0;
+ double get_write_bandwidth() const { return write_bw_.peak * write_bw_.scale; }
+
+ DiskImpl* set_read_constraint(lmm::Constraint* constraint_read);
lmm::Constraint* get_read_constraint() const { return constraint_read_; }
+
+ DiskImpl* set_write_constraint(lmm::Constraint* constraint_write);
lmm::Constraint* get_write_constraint() const { return constraint_write_; }
+ DiskImpl* set_read_bandwidth_profile(profile::Profile* profile);
+ DiskImpl* set_write_bandwidth_profile(profile::Profile* profile);
+
+ void set_sharing_policy(s4u::Disk::Operation op, s4u::Disk::SharingPolicy policy, const s4u::NonLinearResourceCb& cb);
+ s4u::Disk::SharingPolicy get_sharing_policy(s4u::Disk::Operation op) const;
+
/** @brief Check if the Disk is used (if an action currently uses its resources) */
bool is_used() const override;
- void apply_event(profile::Event* event, double value) override;
void turn_on() override;
void turn_off() override;
+ void seal() override;
void destroy(); // Must be called instead of the destructor
- virtual DiskAction* io_start(sg_size_t size, s4u::Io::OpType type) = 0;
- virtual DiskAction* read(sg_size_t size) = 0;
- virtual DiskAction* write(sg_size_t size) = 0;
};
/**********
public:
static xbt::signal<void(DiskAction const&, Action::State, Action::State)> on_state_change;
- DiskAction(Model* model, double cost, bool failed, DiskImpl* disk, s4u::Io::OpType type)
- : Action(model, cost, failed), type_(type), disk_(disk){};
-
- /**
- * @brief diskAction constructor
- *
- * @param model The DiskModel associated to this DiskAction
- * @param cost The cost of this DiskAction in bytes
- * @param failed [description]
- * @param var The lmm variable associated to this DiskAction if it is part of a LMM component
- * @param disk The Disk associated to this DiskAction
- * @param type [description]
- */
- DiskAction(kernel::resource::Model* model, double cost, bool failed, kernel::lmm::Variable* var, DiskImpl* disk,
- s4u::Io::OpType type)
- : Action(model, cost, failed, var), type_(type), disk_(disk){};
-
+ using Action::Action;
void set_state(simgrid::kernel::resource::Action::State state) override;
- s4u::Io::OpType type_;
- DiskImpl* disk_;
+ double sharing_penalty_ = {};
};
} // namespace resource
