X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/loba.git/blobdiff_plain/de9d56dddba96f345ba109a8cdb0a2986cd59292..a243be6b0e0af216b0bd53bc82d6cd315d43b181:/process.cpp diff --git a/process.cpp b/process.cpp index 470ad41..54fea8a 100644 --- a/process.cpp +++ b/process.cpp @@ -1,6 +1,7 @@ #include #include #include +#include #include #include #include @@ -20,7 +21,7 @@ double process::total_load_exit = 0.0; namespace { - void sleep_until_date(double& date, double duration = 0.0) + void sleep_until_date(double& date, double duration) { double sleep_duration = date - MSG_get_clock(); if (sleep_duration > 0.0) @@ -45,8 +46,6 @@ process::process(int argc, char* argv[]) rev_neigh.insert(std::make_pair(host, ptr)); } - comp = 0.0; - prev_load_broadcast = -1; // force sending of load on first send_all() expected_load = real_load; total_load_running += real_load; @@ -87,7 +86,7 @@ process::~process() XBT_INFO("Final load after %d:%d iterations: %g", lb_iter, comp_iter, real_load); XBT_VERB("Expected load was: %g", expected_load); - XBT_VERB("Total computation for this process: %g", comp); + XBT_VERB("Total computation for this process: %g", get_comp_amount()); } int process::run() @@ -127,25 +126,30 @@ void process::load_balance_loop() ++lb_iter; } + mutex.acquire(); + if (!opt::bookkeeping) + expected_load = real_load - get_sum_of_to_send(); + // nothing to do with opt::bookkeeping + if (opt::log_rate && lb_iter % opt::log_rate == 0) { XBT_INFO("(%u:%u) current load: %g", lb_iter, comp_iter, real_load); XBT_VERB("... expected load: %g", expected_load); } - if (get_load() > 0.0) + if (expected_load > 0.0) load_balance(); print_loads(true, xbt_log_priority_debug); // send + comm.ctrl_flush(false); std::for_each(neigh.begin(), neigh.end(), bind(&process::ctrl_send, this, _1)); - prev_load_broadcast = get_load(); + prev_load_broadcast = expected_load; + mutex.release(); sleep_until_date(next_iter_after_date, opt::min_lb_iter_duration); ctrl_receive(0.0); - - comm.ctrl_flush(false); } XBT_VERB("Going to finalize for %s...", __func__); @@ -169,20 +173,23 @@ void process::compute_loop() double next_iter_after_date = MSG_get_clock() + opt::min_comp_iter_duration; while (still_running()) { // receive + mutex.acquire(); if (real_load > 0.0) data_receive(0.0); else data_receive(opt::min_comp_iter_duration); + mutex.release(); + // send comm.data_flush(false); + mutex.acquire(); + std::for_each(neigh.begin(), neigh.end(), + bind(&process::data_send, this, _1)); + mutex.release(); if (real_load == 0.0) continue; - // send - std::for_each(neigh.begin(), neigh.end(), - bind(&process::data_send, this, _1)); - // compute ++comp_iter; double flops = opt::comp_cost(real_load); @@ -190,7 +197,7 @@ void process::compute_loop() TRACE_msg_set_task_category(task, TRACE_CAT_COMP); XBT_DEBUG("compute %g flop%s", flops, ESSE(flops)); MSG_task_execute(task); - comp += flops; + add_comp_amount(flops); MSG_task_destroy(task); sleep_until_date(next_iter_after_date, opt::min_comp_iter_duration); @@ -221,6 +228,10 @@ bool process::still_running() if (!last_status) { /* nop */ + } else if (opt::exit_request) { + XBT_VERB("Global exit requested"); + last_status = false; + } else if (opt::time_limit && MSG_get_clock() >= opt::time_limit) { XBT_VERB("Reached time limit: %g/%g", MSG_get_clock(), opt::time_limit); last_status = false; @@ -252,6 +263,17 @@ bool process::still_running() return last_status; } +double process::get_sum_of_to_send() const +{ + using std::tr1::bind; + using std::tr1::placeholders::_1; + using std::tr1::placeholders::_2; + + return std::accumulate(neigh.begin(), neigh.end(), 0.0, + bind(std::plus(), + _1, bind(&neighbor::get_to_send, _2))); +} + void process::load_balance() { if (lb_iter == 1) // warn only once @@ -260,24 +282,27 @@ void process::load_balance() void process::send(neighbor& nb, double amount) { - set_load(get_load() - amount); + expected_load -= amount; nb.set_to_send(nb.get_to_send() + amount); nb.set_load(nb.get_load() + amount); } void process::ctrl_send(neighbor& nb) { - double info_to_send = get_load(); - if (info_to_send != prev_load_broadcast) - comm.ctrl_send(nb.get_ctrl_mbox(), - new message(message::INFO, info_to_send)); + double info_to_send = expected_load; + if (info_to_send != prev_load_broadcast) { + message* msg = new message(message::INFO, info_to_send); + add_ctrl_send_mesg(msg->get_size()); + comm.ctrl_send(nb.get_ctrl_mbox(), msg); + } if (opt::bookkeeping) { double debt_to_send = nb.get_to_send(); if (debt_to_send > 0.0) { nb.set_to_send(0.0); nb.set_debt(nb.get_debt() + debt_to_send); - comm.ctrl_send(nb.get_ctrl_mbox(), - new message(message::CREDIT, debt_to_send)); + message* msg = new message(message::CREDIT, debt_to_send); + add_ctrl_send_mesg(msg->get_size()); + comm.ctrl_send(nb.get_ctrl_mbox(), msg); } } } @@ -286,23 +311,33 @@ void process::data_send(neighbor& nb) { double load_to_send; if (opt::bookkeeping) { - if (real_load <= nb.get_debt()) { - load_to_send = real_load; + load_to_send = std::min(real_load, nb.get_debt()); + if (load_to_send >= opt::min_transfer_amount) { nb.set_debt(nb.get_debt() - load_to_send); - real_load = 0.0; - } else { - load_to_send = nb.get_debt(); - nb.set_debt(0.0); real_load -= load_to_send; + } else { + load_to_send = 0.0; } } else { load_to_send = nb.get_to_send(); - nb.set_to_send(0.0); - // do not update real_load here + if (load_to_send >= opt::min_transfer_amount) { + nb.set_to_send(0.0); + real_load -= load_to_send; + } else { + load_to_send = 0.0; + } + } + while (load_to_send > 0.0) { + double amount; + if (opt::max_transfer_amount) + amount = std::min(load_to_send, opt::max_transfer_amount); + else + amount = load_to_send; + message* msg = new message(message::LOAD, amount); + add_data_send_mesg(msg->get_size()); + comm.data_send(nb.get_data_mbox(), msg); + load_to_send -= amount; } - if (load_to_send > 0.0) - comm.data_send(nb.get_data_mbox(), - new message(message::LOAD, load_to_send)); } void process::ctrl_close(neighbor& nb) @@ -322,6 +357,8 @@ void process::ctrl_receive(double timeout) XBT_DEBUG("%sblocking receive on ctrl (%g)", "\0non-" + !timeout, timeout); while (ctrl_close_pending && comm.ctrl_recv(msg, from, timeout)) { + if (msg->get_type() != message::CTRL_CLOSE) + add_ctrl_recv_mesg(msg->get_size()); handle_message(msg, from); timeout = 0.0; } @@ -334,6 +371,8 @@ void process::data_receive(double timeout) XBT_DEBUG("%sblocking receive on data (%g)", "\0non-" + !timeout, timeout); while (data_close_pending && comm.data_recv(msg, from, timeout)) { + if (msg->get_type() != message::DATA_CLOSE) + add_data_recv_mesg(msg->get_size()); handle_message(msg, from); timeout = 0.0; } @@ -344,7 +383,7 @@ void process::handle_message(message* msg, m_host_t from) switch (msg->get_type()) { case message::INFO: { neighbor* n = rev_neigh[from]; - n->set_load(msg->get_amount()); + n->set_load(msg->get_amount() + n->get_to_send()); break; } case message::CREDIT: