Documentation updates.

[loba.git] / process.cpp

diff --git a/process.cpp b/process.cpp
index a74b1149fcdc406358c7ad320aafd85a337d05af..39646cd2c6b493f76dd974c82b42c14e16d1ec0f 100644 (file)
--- a/process.cpp
+++ b/process.cpp
@@ -44,6 +44,8 @@ process::process(int argc, char* argv[])
     close_received = false;
     finalizing = false;
 
     close_received = false;
     finalizing = false;
 

+    comp_iter = lb_iter = 0;
+

     e_xbt_log_priority_t logp = xbt_log_priority_verbose;
     if (!LOG_ISENABLED(logp))
         return;
     e_xbt_log_priority_t logp = xbt_log_priority_verbose;
     if (!LOG_ISENABLED(logp))
         return;


@@ -56,7 +58,7 @@ process::process(int argc, char* argv[])
                        std::tr1::mem_fn(&neighbor::get_name));
         oss << neigh.back().get_name();
     }
                        std::tr1::mem_fn(&neighbor::get_name));
         oss << neigh.back().get_name();
     }

-    LOG1(logp, "Got %s.", oss.str().c_str());
+    XBT_LOG(logp, "Got %s.", oss.str().c_str());

     print_loads(false, logp);
 }
 
     print_loads(false, logp);
 }
 


@@ -64,48 +66,45 @@ process::~process()
 {
     total_load_exit += real_load;
     if (opt::bookkeeping) {
 {
     total_load_exit += real_load;
     if (opt::bookkeeping) {

-        INFO4("Final load after %d:%d iterations: %g ; expected: %g",
-              lb_iter, comp_iter, real_load, expected_load);
+        XBT_INFO("Final load after %d:%d iterations: %g ; expected: %g",
+                 lb_iter, comp_iter, real_load, expected_load);

     } else {
     } else {

-        INFO2("Final load after %d iterations: %g",
-              lb_iter, real_load);
+        XBT_INFO("Final load after %d iterations: %g",
+                 lb_iter, real_load);

         if (lb_iter != comp_iter)
         if (lb_iter != comp_iter)

-            WARN2("lb_iter (%d) and comp_iter (%d) differ!",
-                  lb_iter, comp_iter);
+            XBT_WARN("lb_iter (%d) and comp_iter (%d) differ!",
+                     lb_iter, comp_iter);

     }
     }

-    VERB1("Total computation for this process: %g", comp);
+    XBT_VERB("Total computation for this process: %g", comp);

 }
 
 int process::run()
 {
     double next_iter_after_date = 0.0;
 }
 
 int process::run()
 {
     double next_iter_after_date = 0.0;

-    INFO1("Initial load: %g", real_load);
-    VERB0("Starting...");
-    comp_iter = lb_iter = 0;
+    XBT_INFO("Initial load: %g", real_load);
+    XBT_VERB("Starting...");

     while (true) {
     while (true) {

-        double ld = get_load();
-        if (ld > 0.0) {
+        if (get_load() > 0.0) {

             double now = MSG_get_clock();
             if (now < next_iter_after_date)
                 MSG_process_sleep(next_iter_after_date - now);
             double now = MSG_get_clock();
             if (now < next_iter_after_date)
                 MSG_process_sleep(next_iter_after_date - now);

-            next_iter_after_date = MSG_get_clock() + opt::min_iter_duration;
+            next_iter_after_date = MSG_get_clock() + opt::min_lb_iter_duration;

 
             ++lb_iter;
 
             if (opt::log_rate && lb_iter % opt::log_rate == 0) {
                 if (opt::bookkeeping)
 
             ++lb_iter;
 
             if (opt::log_rate && lb_iter % opt::log_rate == 0) {
                 if (opt::bookkeeping)

-                    INFO4("(%u:%u) current load: %g ; expected: %g",
-                          lb_iter, comp_iter, real_load, expected_load);
+                    XBT_INFO("(%u:%u) current load: %g ; expected: %g",
+                             lb_iter, comp_iter, real_load, expected_load);

                 else
                 else

-                    INFO2("(%u) current load: %g",
-                          lb_iter, real_load);
+                    XBT_INFO("(%u) current load: %g",
+                             lb_iter, real_load);

             }
 
             }
 

-            ld -= load_balance(ld);
+            load_balance();

 
             print_loads(true, xbt_log_priority_debug);
         }
 
             print_loads(true, xbt_log_priority_debug);
         }

-        set_load(ld);

 
         // send load information, and load (data) if any
         send_all();
 
         // send load information, and load (data) if any
         send_all();


@@ -115,15 +114,15 @@ int process::run()
         }
 
         if (opt::lb_maxiter && lb_iter >= opt::lb_maxiter) {
         }
 
         if (opt::lb_maxiter && lb_iter >= opt::lb_maxiter) {

-            VERB2("Reached lb_maxiter: %d/%d", lb_iter, opt::lb_maxiter);
+            XBT_VERB("Reached lb_maxiter: %d/%d", lb_iter, opt::lb_maxiter);

             break;
         }
         if (opt::comp_maxiter && comp_iter >= opt::comp_maxiter) {
             break;
         }
         if (opt::comp_maxiter && comp_iter >= opt::comp_maxiter) {

-            VERB2("Reached comp_maxiter: %d/%d", comp_iter, opt::comp_maxiter);
+            XBT_VERB("Reached comp_maxiter: %d/%d", comp_iter, opt::comp_maxiter);

             break;
         }
         if (opt::time_limit && MSG_get_clock() >= opt::time_limit) {
             break;
         }
         if (opt::time_limit && MSG_get_clock() >= opt::time_limit) {

-            VERB2("Reached time limit: %g/%g", MSG_get_clock(), opt::time_limit);
+            XBT_VERB("Reached time limit: %g/%g", MSG_get_clock(), opt::time_limit);

             break;
         }
 
             break;
         }
 


@@ -132,21 +131,21 @@ int process::run()
         double timeout;
         if (real_load != 0 || get_load() != prev_load_broadcast)
             timeout = 0.0;
         double timeout;
         if (real_load != 0 || get_load() != prev_load_broadcast)
             timeout = 0.0;

-        else if (opt::min_iter_duration)
-            timeout = opt::min_iter_duration;
+        else if (opt::min_lb_iter_duration)
+            timeout = opt::min_lb_iter_duration;

         else
             timeout = 1.0;
         receive(timeout);
 
         // one of our neighbor is finalizing
         if (opt::exit_on_close && close_received) {
         else
             timeout = 1.0;
         receive(timeout);
 
         // one of our neighbor is finalizing
         if (opt::exit_on_close && close_received) {

-            VERB0("Close received");
+            XBT_VERB("Close received");

             break;
         }
 
         // have no load and cannot receive anything
         if (real_load == 0.0 && !may_receive()) {
             break;
         }
 
         // have no load and cannot receive anything
         if (real_load == 0.0 && !may_receive()) {

-            VERB0("I'm a poor lonesome process, and I have no load...");
+            XBT_VERB("I'm a poor lonesome process, and I have no load...");

             break;
         }
 
             break;
         }
 


@@ -155,13 +154,13 @@ int process::run()
         // fixme: should this chunk be moved before call to receive() ?
         if (100.0 * total_load_running / total_load_init <=
             opt::load_ratio_threshold) {
         // fixme: should this chunk be moved before call to receive() ?
         if (100.0 * total_load_running / total_load_init <=
             opt::load_ratio_threshold) {

-            VERB0("No more load to balance in system.");
+            XBT_VERB("No more load to balance in system.");

             break;
         } else {
             break;
         } else {

-            DEBUG1("still %g load to balance, continuing...", total_load_running);
+            XBT_DEBUG("still %g load to balance, continuing...", total_load_running);

         }
     }
         }
     }

-    VERB0("Going to finalize...");
+    XBT_VERB("Going to finalize...");

     finalize();
 
     /* Open Questions :
     finalize();
 
     /* Open Questions :


@@ -170,15 +169,14 @@ int process::run()
      * - how to manage link failures ?
      */
 
      * - how to manage link failures ?
      */
 

-    VERB0("Done.");
+    XBT_VERB("Done.");

     return 0;
 }
 
     return 0;
 }
 

-double process::load_balance(double /*my_load*/)
+void process::load_balance()

 {
     if (lb_iter == 1)           // warn only once
 {
     if (lb_iter == 1)           // warn only once

-        WARN0("process::load_balance() is a no-op!");
-    return 0.0;
+        XBT_WARN("process::load_balance() is a no-op!");

 }
 
 void process::compute()
 }
 
 void process::compute()


@@ -187,22 +185,31 @@ void process::compute()
         double flops = opt::comp_cost(real_load);
         m_task_t task = MSG_task_create("computation", flops, 0.0, NULL);
         TRACE_msg_set_task_category(task, TRACE_CAT_COMP);
         double flops = opt::comp_cost(real_load);
         m_task_t task = MSG_task_create("computation", flops, 0.0, NULL);
         TRACE_msg_set_task_category(task, TRACE_CAT_COMP);

-        DEBUG2("compute %g flop%s", flops, ESSE(flops));
+        XBT_DEBUG("compute %g flop%s", flops, ESSE(flops));

         MSG_task_execute(task);
         comp += flops;
         MSG_task_destroy(task);
     } else {
         MSG_task_execute(task);
         comp += flops;
         MSG_task_destroy(task);
     } else {

-        DEBUG0("nothing to compute !");
+        XBT_DEBUG("nothing to compute !");

     }
 }
 
     }
 }
 

+void process::send(neighbor& nb, double amount)
+{
+    set_load(get_load() - amount);
+    nb.set_to_send(nb.get_to_send() + amount);
+    nb.set_load(nb.get_load() + amount); // fixme: make this optional?
+}
+

 void process::send1_no_bookkeeping(neighbor& nb)
 {
     if (real_load != prev_load_broadcast)
 void process::send1_no_bookkeeping(neighbor& nb)
 {
     if (real_load != prev_load_broadcast)

-        comm.send(nb.get_ctrl_mbox(), new message(message::INFO, real_load));
+        comm.ctrl_send(nb.get_ctrl_mbox(),
+                       new message(message::INFO, real_load));

     double load_to_send = nb.get_to_send();
     if (load_to_send > 0.0) {
     double load_to_send = nb.get_to_send();
     if (load_to_send > 0.0) {

-        comm.send(nb.get_data_mbox(), new message(message::LOAD, load_to_send));
+        comm.data_send(nb.get_data_mbox(),
+                       new message(message::LOAD, load_to_send));

         nb.set_to_send(0.0);
     }
 }
         nb.set_to_send(0.0);
     }
 }


@@ -210,14 +217,14 @@ void process::send1_no_bookkeeping(neighbor& nb)
 void process::send1_bookkeeping(neighbor& nb)
 {
     if (expected_load != prev_load_broadcast)
 void process::send1_bookkeeping(neighbor& nb)
 {
     if (expected_load != prev_load_broadcast)

-        comm.send(nb.get_ctrl_mbox(),
-                  new message(message::INFO, expected_load));
+        comm.ctrl_send(nb.get_ctrl_mbox(),
+                       new message(message::INFO, expected_load));

     double load_to_send;
     double new_debt;
     double debt_to_send = nb.get_to_send();
     if (debt_to_send > 0.0) {
     double load_to_send;
     double new_debt;
     double debt_to_send = nb.get_to_send();
     if (debt_to_send > 0.0) {

-        comm.send(nb.get_ctrl_mbox(),
-                  new message(message::CREDIT, debt_to_send));
+        comm.ctrl_send(nb.get_ctrl_mbox(),
+                       new message(message::CREDIT, debt_to_send));

         nb.set_to_send(0.0);
         new_debt = nb.get_debt() + debt_to_send;
     } else {
         nb.set_to_send(0.0);
         new_debt = nb.get_debt() + debt_to_send;
     } else {


@@ -233,7 +240,8 @@ void process::send1_bookkeeping(neighbor& nb)
         real_load -= load_to_send;
     }
     if (load_to_send > 0.0)
         real_load -= load_to_send;
     }
     if (load_to_send > 0.0)

-        comm.send(nb.get_data_mbox(), new message(message::LOAD, load_to_send));
+        comm.data_send(nb.get_data_mbox(),
+                       new message(message::LOAD, load_to_send));

 }
 
 void process::send_all()
 }
 
 void process::send_all()


@@ -250,7 +258,8 @@ void process::send_all()
                       bind(&process::send1_no_bookkeeping, this, _1));
         prev_load_broadcast = real_load;
     }
                       bind(&process::send1_no_bookkeeping, this, _1));
         prev_load_broadcast = real_load;
     }

-    comm.flush(false);
+    comm.ctrl_flush(false);
+    comm.data_flush(false);

 }
 
 void process::receive(double timeout)
 }
 
 void process::receive(double timeout)


@@ -258,8 +267,9 @@ void process::receive(double timeout)
     message* msg;
     m_host_t from;
 
     message* msg;
     m_host_t from;
 

-    DEBUG2("%sblocking receive (%g)", "\0non-" + !timeout, timeout);
-    while (may_receive() && comm.recv(msg, from, timeout)) {
+    XBT_DEBUG("%sblocking receive (%g)", "\0non-" + !timeout, timeout);
+    while (may_receive() && (comm.ctrl_recv(msg, from, timeout) ||
+                             comm.data_recv(msg, from, timeout))) {

         switch (msg->get_type()) {
         case message::INFO: {
             neighbor* n = rev_neigh[from];
         switch (msg->get_type()) {
         case message::INFO: {
             neighbor* n = rev_neigh[from];


@@ -288,13 +298,14 @@ void process::receive(double timeout)
         delete msg;
         timeout = 0.0;          // only wait on first recv
     }
         delete msg;
         timeout = 0.0;          // only wait on first recv
     }

-    comm.flush(false);
+    comm.ctrl_flush(false);
+    comm.data_flush(false);

 }
 
 void process::finalize1(neighbor& nb)
 {
 }
 
 void process::finalize1(neighbor& nb)
 {

-    comm.send(nb.get_ctrl_mbox(), new message(message::CTRL_CLOSE, 0.0));
-    comm.send(nb.get_data_mbox(), new message(message::DATA_CLOSE, 0.0));
+    comm.ctrl_send(nb.get_ctrl_mbox(), new message(message::CTRL_CLOSE, 0.0));
+    comm.data_send(nb.get_data_mbox(), new message(message::DATA_CLOSE, 0.0));

 }
 
 void process::finalize()
 }
 
 void process::finalize()


@@ -305,26 +316,27 @@ void process::finalize()
     finalizing = true;
     total_load_running -= real_load;
 
     finalizing = true;
     total_load_running -= real_load;
 

-    DEBUG2("send CLOSE to %lu neighbor%s",
-           (unsigned long )neigh.size(), ESSE(neigh.size()));
+    XBT_DEBUG("send CLOSE to %zu neighbor%s", neigh.size(), ESSE(neigh.size()));

     std::for_each(neigh.begin(), neigh.end(),
                   bind(&process::finalize1, this, _1));
 
     std::for_each(neigh.begin(), neigh.end(),
                   bind(&process::finalize1, this, _1));
 

-    DEBUG2("wait for CLOSE from %lu neighbor%s",
-           (unsigned long )neigh.size(), ESSE(neigh.size()));

     while (may_receive()) {
     while (may_receive()) {

-        comm.flush(false);
+        comm.ctrl_flush(false);
+        comm.data_flush(false);
+        XBT_DEBUG("waiting for %d CTRL and %d DATA CLOSE",
+                  ctrl_close_pending, data_close_pending);

         receive(-1.0);
     }
 
         receive(-1.0);
     }
 

-    comm.flush(true);
+    comm.ctrl_flush(true);
+    comm.data_flush(true);

 }
 
 #define print_loads_generic(vec, verbose, logp, cat)                    \
     if (_XBT_LOG_ISENABLEDV((*cat), logp)) {                            \
         using std::tr1::bind;                                           \
         using std::tr1::placeholders::_1;                               \
 }
 
 #define print_loads_generic(vec, verbose, logp, cat)                    \
     if (_XBT_LOG_ISENABLEDV((*cat), logp)) {                            \
         using std::tr1::bind;                                           \
         using std::tr1::placeholders::_1;                               \

-        XCLOG0(cat, logp, "Neighbor loads:");                           \
+        XBT_XCLOG(cat, logp, "Neighbor loads:");                        \

         std::for_each(vec.begin(), vec.end(),                           \
                       bind(&neighbor::print, _1, verbose, logp, cat));  \
     } else ((void)0)
         std::for_each(vec.begin(), vec.end(),                           \
                       bind(&neighbor::print, _1, verbose, logp, cat));  \
     } else ((void)0)