X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/loba.git/blobdiff_plain/431ac6bd7924ab99473c9a621a25ab0c555c3e60..97a4b4dbf628a627e3c2d5689be89265f56074df:/process.cpp?ds=sidebyside diff --git a/process.cpp b/process.cpp index 339938a..214b9d0 100644 --- a/process.cpp +++ b/process.cpp @@ -1,5 +1,3 @@ -#include "process.h" - #include #include #include @@ -8,15 +6,21 @@ #include #include #include + +XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(proc); + #include "misc.h" #include "options.h" -XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(proc); +#include "process.h" + +double process::total_load_init = 0.0; +double process::total_load_exit = 0.0; process::process(int argc, char* argv[]) { if (argc < 2 || !(std::istringstream(argv[1]) >> load)) - throw std::invalid_argument("bad or missing initial load"); + throw std::invalid_argument("bad or missing initial load parameter"); neigh.assign(argv + 2, argv + argc); @@ -29,6 +33,7 @@ process::process(int argc, char* argv[]) } expected_load = load; + total_load_init += load; ctrl_close_pending = data_close_pending = neigh.size(); if (neigh.size() == 1) { @@ -51,24 +56,25 @@ process::process(int argc, char* argv[]) oss << neigh.back().get_name(); } LOG1(logp, "Got %s.", oss.str().c_str()); - print_loads(logp); + print_loads(true, logp); } process::~process() { + total_load_exit += load; } int process::run() { - bool one_more = true; - INFO1("Initial load: %g", load); VERB0("Starting..."); // first send() to inform neighbors about our load (force it) - prev_load_broadcast = !(opt::bookkeeping? expected_load: load); - send(); + prev_load_broadcast = -1; iter = 0; - while (one_more) { + bool one_more = true; + do { + ++iter; + if (opt::log_rate && iter % opt::log_rate == 0) { if (opt::bookkeeping) INFO3("(%u) current load: %g ; expected: %g", @@ -77,15 +83,7 @@ int process::run() INFO2("(%u) current load: %g", iter, load); } - print_loads(xbt_log_priority_debug); - - bool do_compute = load > 0.0; - if (do_compute) { - compute(); - ++iter; - } - - bool close_received = !receive(do_compute? NO_WAIT: WAIT); + print_loads(true, xbt_log_priority_debug); if (opt::bookkeeping) expected_load -= load_balance(expected_load); @@ -93,12 +91,31 @@ int process::run() load -= load_balance(load); send(); + compute(); - if (opt::exit_on_close && close_received) - one_more = false; - if (opt::maxiter && iter >= opt::maxiter) - one_more = false; - } +// NDS for Need To Send +#define NDS ((opt::bookkeeping ? expected_load : load) != prev_load_broadcast) + bool can_recv; + do { + // General idea: do not iterate if there is nothing to + // compute, nor to send. + + // fixme: review this chunk, and remove this NDS macro! + + bool recv_wait = (load == 0 && !NDS); + bool close_received = !receive(recv_wait? WAIT: NO_WAIT); + + if (opt::exit_on_close && close_received) + one_more = false; + else if (opt::maxiter && iter >= opt::maxiter) + one_more = false; + + can_recv = (ctrl_close_pending || data_close_pending); + + } while (one_more && can_recv && load == 0 && !NDS); +#undef NDS + + } while (one_more); VERB0("Going to finalize..."); finalize(); @@ -109,11 +126,9 @@ int process::run() */ VERB0("Done."); + INFO3("Final load after %d iteration%s: %g", iter, ESSE(iter), load); if (opt::bookkeeping) - INFO4("Final load after %d iteration%s: %g ; expected: %g", - iter, ESSE(iter), load, expected_load); - else - INFO3("Final load after %d iteration%s: %g", iter, ESSE(iter), load); + INFO1("Expected load: %g", expected_load); return 0; } @@ -129,16 +144,22 @@ double process::sum_of_to_send() const double process::load_balance(double /*my_load*/) { + if (iter == 1) + WARN0("process::load_balance is a no-op!"); return 0.0; } void process::compute() { - double duration = opt::comp_cost(load); - m_task_t task = MSG_task_create("computation", duration, 0.0, NULL); - DEBUG2("compute %g flop%s.", duration, ESSE(duration)); - MSG_task_execute(task); - MSG_task_destroy(task); + if (load > 0.0) { + double duration = opt::comp_cost(load); + m_task_t task = MSG_task_create("computation", duration, 0.0, NULL); + DEBUG2("compute %g flop%s.", duration, ESSE(duration)); + MSG_task_execute(task); + MSG_task_destroy(task); + } else { + DEBUG0("nothing to compute !"); + } } void process::send1_no_bookkeeping(neighbor& nb) @@ -186,7 +207,6 @@ void process::send() using namespace std::tr1; using namespace std::tr1::placeholders; - // fixme: shall we send data at all iterations? if (opt::bookkeeping) { std::for_each(neigh.begin(), neigh.end(), bind(&process::send1_bookkeeping, this, _1)); @@ -198,9 +218,10 @@ void process::send() } } -// Returns false if a CLOSE message was received. bool process::receive(recv_wait_mode wait) { + // DEBUG1("go for receive(%s)", + // "NO_WAIT\0WAIT\0\0\0\0WAIT_FOR_CLOSE" + 8 * wait); bool result = true; message* msg; m_host_t from; @@ -261,23 +282,31 @@ void process::finalize() comm.flush(true); } -void process::print_loads(e_xbt_log_priority_t logp) +#define print_loads_generic(vec, verbose, logp, cat) \ + if (_XBT_LOG_ISENABLEDV((*cat), logp)) { \ + using namespace std::tr1; \ + using namespace std::tr1::placeholders; \ + XCLOG0(cat, logp, "Neighbor loads:"); \ + std::for_each(vec.begin(), vec.end(), \ + bind(&neighbor::print, _1, verbose, logp, cat)); \ + } else ((void)0) + +void process::print_loads(bool verbose, + e_xbt_log_priority_t logp, + xbt_log_category_t cat) const { - if (!LOG_ISENABLED(logp)) - return; + print_loads_generic(neigh, verbose, logp, cat); +} - std::ostringstream oss; - if (neigh.empty()) { - oss << "no neighbor!"; - } else { - std::transform(neigh.begin(), neigh.end() - 1, - std::ostream_iterator(oss, ", "), - std::tr1::mem_fn(&neighbor::get_load)); - oss << neigh.back().get_load(); - } - LOG1(logp, "Neighbor loads: %s", oss.str().c_str()); +void process::print_loads_p(bool verbose, + e_xbt_log_priority_t logp, + xbt_log_category_t cat) const +{ + print_loads_generic(pneigh, verbose, logp, cat); } +#undef print_loads_generic + // Local variables: // mode: c++ // End: