X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/loba.git/blobdiff_plain/af35c0c75c52b0cf5d0518656473503f67a79613..31105199e1ac10ed46643c7b861784e8d5e61208:/process.h?ds=inline diff --git a/process.h b/process.h index 152f5ed..14d514f 100644 --- a/process.h +++ b/process.h @@ -4,23 +4,31 @@ #define USE_UNORDERED_MAP 1 //#undef USE_UNORDERED_MAP -#include <vector> +#include <algorithm> +#include <functional> #ifdef USE_UNORDERED_MAP -# include <tr1/unordered_map> -# define MAP_TEMPLATE std::tr1::unordered_map +# include <unordered_map> +# define MAP_TEMPLATE std::unordered_map #else # include <map> # define MAP_TEMPLATE std::map #endif +#include <vector> #include <msg/msg.h> #include <xbt/log.h> +#include "atomic_compat.h" #include "communicator.h" #include "misc.h" +#include "msg_thread.h" #include "neighbor.h" #include "options.h" +#include "synchro.h" class process { public: + static void set_proc_mutex(mutex_t* m) { proc_mutex = m; } + + // Note: normally used with proc_mutex locked. static double get_total_load_init() { return total_load_init; } static double get_total_load_running() { return total_load_running; } static double get_total_load_exit() { return total_load_exit; } @@ -28,8 +36,21 @@ public: process(int argc, char* argv[]); virtual ~process(); - double get_comp() const { return comp; } - double get_real_load() const { return real_load; } + double get_real_load() const { return real_load; } + double get_comp_amount() const { return acc.comp_amount; } + unsigned get_comp_iter() const { return comp_iter; } + unsigned get_all_comp_iter() const { return all_comp_iter; } + double get_iter_deviation() const; + double get_data_send_amount() const { return acc.data_send.amount; } + double get_data_recv_amount() const { return acc.data_recv.amount; } + unsigned get_data_send_count() const { return acc.data_send.count; } + unsigned get_data_recv_count() const { return acc.data_recv.count; } + double get_ctrl_send_amount() const { return acc.ctrl_send.amount; } + double get_ctrl_recv_amount() const { return acc.ctrl_recv.amount; } + unsigned get_ctrl_send_count() const { return acc.ctrl_send.count; } + unsigned get_ctrl_recv_count() const { return acc.ctrl_recv.count; } + double get_idle_duration() const { return idle_duration; } + double get_convergence() const { return convergence; } int run(); @@ -42,13 +63,19 @@ protected: // Get and set current load, which may be real load, or expected // load if opt::bookkeeping is true. - double get_load() const; - void set_load(double load); + double get_load() const { return expected_load; } + + // The load balancing algorithm comes here... + virtual void load_balance(); // Register some amount of load to send to given neighbor. void send(neighbor& nb, double amount); void send(neighbor* nb, double amount) { send(*nb, amount); } + // Sort pneigh by applying comp to their loads + template <typename Compare> + void pneigh_sort_by_load(const Compare& comp); + // Calls neighbor::print(verbose, logp, cat) for each member of neigh. void print_loads(bool verbose = false, e_xbt_log_priority_t logp = xbt_log_priority_info, @@ -60,10 +87,21 @@ protected: xbt_log_category_t cat = _XBT_LOGV(default)) const; private: + static mutex_t *proc_mutex; // protect access to global variables + // (must be set before constructing + // the first object!) + static double total_load_init; // sum of process loads at init static double total_load_running; // sum of loads while running static double total_load_exit; // sum of process loads at exit + static int process_counter; + static double total_load_average; + static double average_load_ratio; + static double load_diff_threshold; + + static std::atomic<int> convergence_counter; + typedef MAP_TEMPLATE<m_host_t, neighbor*> rev_neigh_type; neigh_type neigh; // list of neighbors (do not alter // after construction!) @@ -79,73 +117,101 @@ private: unsigned lb_iter; // counter of load-balancing iterations unsigned comp_iter; // counter of computation iterations - - double comp; // total computing done so far (flops) + unsigned all_comp_iter; // counter of computation iterations + // (counting empty iterations too) double prev_load_broadcast; // used to ensure that we do not send // a same information messages double real_load; // current load double expected_load; // expected load in bookkeeping mode + double received_load; // load received from neighbors + + double idle_duration; // how long we had nothing to compute + double convergence; // date when convergence was achieved, or -1.0 + int local_convergence_counter; // number of iterations since convergence + + mutex_t mutex; // synchronization between threads + condition_t cond; + + struct mesg_accounting { + double amount; // sum of message size + unsigned count; // number of messages + mesg_accounting(): amount(0.0), count(0) { } + }; + struct accounting { + double comp_amount; // total computing done so far (flops) + mesg_accounting data_send; // data messages sent + mesg_accounting data_recv; // data messages received + mesg_accounting ctrl_send; // ctrl message sent + mesg_accounting ctrl_recv; // ctrl message received + accounting(): comp_amount(0.0) { } + }; + accounting acc; // use a structure so that it is + // automatically initialized a + // construction + + void add_comp_amount(double amount) { acc.comp_amount += amount; } + void add_data_send_mesg(double amount) { + ++acc.data_send.count; + acc.data_send.amount += amount; + } + void add_data_recv_mesg(double amount) { + ++acc.data_recv.count; + acc.data_recv.amount += amount; + } + void add_ctrl_send_mesg(double amount) { + ++acc.ctrl_send.count; + acc.ctrl_send.amount += amount; + } + void add_ctrl_recv_mesg(double amount) { + ++acc.ctrl_recv.count; + acc.ctrl_recv.amount += amount; + } - // The load balancing algorithm comes here... - virtual void load_balance(); + // Load-balancing loop + msg_thread* lb_thread; + void load_balance_loop(); - // Virtually do some computation - void compute(); + // Simulate computation loop + void compute_loop(); - // Send procedures, with helpers for bookkeeping mode or not - void send1_no_bookkeeping(neighbor& nb); - void send1_bookkeeping(neighbor& nb); - void send_all(); + // Check for convergence + void convergence_check(); - // Returns true if there remains neighbors to listen for - bool may_receive() const { - return ctrl_close_pending || data_close_pending; - } + // Check if we need to stop + bool still_running(); + + // Returns the sum of "to_send" for all neighbors. + double get_sum_of_to_send() const; + + // Compute load_to_send (for data_send), subject to the execution parameters + static double compute_load_to_send(double desired); + + // Send procedures + void ctrl_send(neighbor& nb); + void data_send(neighbor& nb); + void ctrl_close(neighbor& nb); + void data_close(neighbor& nb); // Receive procedure // Parameter "timeout" may be 0 for non-blocking operation, -1 for // infinite waiting, or any positive timeout. - void receive(double timeout); - - // Finalize sends a "close" message to each neighbor and wait for - // all of them to answer. - void finalize1(neighbor& nb); - void finalize(); + void ctrl_receive(double timeout); + void data_receive(double timeout); + void handle_message(message* msg, m_host_t from); }; -inline -double process::get_load() const +template <typename Compare> +void process::pneigh_sort_by_load(const Compare& comp) { - if (opt::bookkeeping) - return expected_load; - else - return real_load; + using std::placeholders::_1; + using std::placeholders::_2; + std::sort(pneigh.begin(), pneigh.end(), + std::bind(comp, + std::bind(&neighbor::get_load, _1), + std::bind(&neighbor::get_load, _2))); } -inline -void process::set_load(double load) -{ - if (opt::bookkeeping) - expected_load = load; - else - real_load = load; -} - -struct pneigh_load_less { - bool operator()(const neighbor* a, const neighbor* b) - { - return a->get_load() < b->get_load(); - } -}; - -struct pneigh_load_greater { - bool operator()(const neighbor* a, const neighbor* b) - { - return a->get_load() > b->get_load(); - } -}; - #endif // !PROCESS_H // Local variables: