Add statistics on total computation power.

[loba.git] / process.cpp

diff --git a/process.cpp b/process.cpp
index 338f20de49438d0e2f62708d529df4ecdafcbe39..d3d92268c524f87ef67d6db3b4c19d3dfc1073c0 100644 (file)
--- a/process.cpp
+++ b/process.cpp
@@ -33,6 +33,8 @@ process::process(int argc, char* argv[])
         rev_neigh.insert(std::make_pair(host, ptr));
     }
 
         rev_neigh.insert(std::make_pair(host, ptr));
     }
 

+    comp = 0.0;
+

     prev_load_broadcast = -1;   // force sending of load on first send()
     expected_load = load;
     total_load_running += load;
     prev_load_broadcast = -1;   // force sending of load on first send()
     expected_load = load;
     total_load_running += load;


@@ -65,65 +67,85 @@ process::~process()
 
 int process::run()
 {
 
 int process::run()
 {

+    double next_iter_after_date = 0.0;

     INFO1("Initial load: %g", load);
     VERB0("Starting...");
     comp_iter = lb_iter = 0;
     while (true) {
     INFO1("Initial load: %g", load);
     VERB0("Starting...");
     comp_iter = lb_iter = 0;
     while (true) {

-        if (load > 0.0) {
-            ++comp_iter;
-            if (opt::log_rate && comp_iter % opt::log_rate == 0) {
+        if (opt::min_iter_duration) {
+            double now = MSG_get_clock();
+            if (now < next_iter_after_date){
+                double delay = next_iter_after_date - now;
+                DEBUG1("sleeping for %g s", delay);
+                MSG_process_sleep(next_iter_after_date - now);
+            }
+            next_iter_after_date = MSG_get_clock() + opt::min_iter_duration;
+        }
+
+        double ld = lb_load();
+        if (ld > 0.0) {
+            ++lb_iter;
+
+            if (opt::log_rate && lb_iter % opt::log_rate == 0) {

                 if (opt::bookkeeping)
                     INFO4("(%u:%u) current load: %g ; expected: %g",
                 if (opt::bookkeeping)
                     INFO4("(%u:%u) current load: %g ; expected: %g",

-                          comp_iter, lb_iter, load, expected_load);
+                          lb_iter, comp_iter, load, expected_load);

                 else
                     INFO2("(%u) current load: %g",
                 else
                     INFO2("(%u) current load: %g",

-                          comp_iter, load);
+                          lb_iter, load);

             }
 
             }
 

-            if (opt::bookkeeping)
-                expected_load -= load_balance(expected_load);
-            else
-                load -= load_balance(load);
+            ld -= load_balance(ld);

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

+        }
+        lb_load() = ld;

 
 

-            send();
+        // send load information, and load (data) if any
+        send();
+        if (load > 0.0) {
+            ++comp_iter;

             compute();
             compute();

-
-        } else {
-            // send load information, and load when bookkeeping
-            send();

         }
 
         }
 

-        if (opt::comp_maxiter && comp_iter >= opt::comp_maxiter)
+        if (opt::lb_maxiter && lb_iter >= opt::lb_maxiter) {
+            VERB2("Reached lb_maxiter: %d/%d", lb_iter, opt::lb_maxiter);

             break;
             break;

-        if (opt::lb_maxiter && lb_iter >= opt::lb_maxiter)
+        }
+        if (opt::comp_maxiter && comp_iter >= opt::comp_maxiter) {
+            VERB2("Reached comp_maxiter: %d/%d", comp_iter, opt::comp_maxiter);
+            break;
+        }
+        if (opt::time_limit && MSG_get_clock() >= opt::time_limit) {
+            VERB2("Reached time limit: %g/%g", MSG_get_clock(), opt::time_limit);

             break;
             break;

+        }

 
         // block on receiving unless there is something to compute or
         // to send
 
         // block on receiving unless there is something to compute or
         // to send

-        bool wait = (load == 0 &&
-                     ((opt::bookkeeping ? expected_load : load)
-                      == prev_load_broadcast));
+        bool wait = (load == 0 && lb_load() == prev_load_broadcast);

         receive(wait);
 
         // one of our neighbor is finalizing
         receive(wait);
 
         // one of our neighbor is finalizing

-        if (opt::exit_on_close && close_received)
+        if (opt::exit_on_close && close_received) {
+            VERB0("Close received");

             break;
             break;

+        }

 
         // have no load and cannot receive anything
 
         // have no load and cannot receive anything

-        if (load == 0.0 && !may_receive())
+        if (load == 0.0 && !may_receive()) {
+            VERB0("I'm a poor lonesome process, and I have no load...");

             break;
             break;

+        }

 
         // fixme: this check should be implemented with a distributed
         // algorithm, and not a shared global variable!
         // fixme: should this chunk be moved before call to receive() ?
         if (100.0 * total_load_running / total_load_init <=
             opt::load_ratio_threshold) {
 
         // fixme: this check should be implemented with a distributed
         // algorithm, and not a shared global variable!
         // 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, stopping.");
+            VERB0("No more load to balance in system.");

             break;
         }
             break;
         }

-

     }
     VERB0("Going to finalize...");
     finalize();
     }
     VERB0("Going to finalize...");
     finalize();


@@ -135,10 +157,16 @@ int process::run()
      */
 
     VERB0("Done.");
      */
 
     VERB0("Done.");

-    INFO3("Final load after %d iteration%s: %g",
-          comp_iter, ESSE(comp_iter), load);
-    if (opt::bookkeeping)
-        INFO1("Expected load: %g", expected_load);
+    if (opt::bookkeeping) {
+        INFO4("Final load after %d:%d iterations: %g ; expected: %g",
+              lb_iter, comp_iter, load, expected_load);
+    } else {
+        INFO2("Final load after %d iterations: %g",
+              lb_iter, load);
+        if (lb_iter != comp_iter)
+            WARN2("lb_iter (%d) and comp_iter (%d) differ!",
+                  lb_iter, comp_iter);
+    }

     return 0;
 }
 
     return 0;
 }
 


@@ -156,17 +184,18 @@ double process::sum_of_to_send() const
 double process::load_balance(double /*my_load*/)
 {
     if (lb_iter == 1)           // warn only once
 double process::load_balance(double /*my_load*/)
 {
     if (lb_iter == 1)           // warn only once

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

     return 0.0;
 }
 
 void process::compute()
 {
     if (load > 0.0) {
     return 0.0;
 }
 
 void process::compute()
 {
     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));
+        double flops = opt::comp_cost(load);
+        m_task_t task = MSG_task_create("computation", flops, 0.0, NULL);
+        DEBUG2("compute %g flop%s", flops, ESSE(flops));

         MSG_task_execute(task);
         MSG_task_execute(task);

+        comp += flops;

         MSG_task_destroy(task);
     } else {
         DEBUG0("nothing to compute !");
         MSG_task_destroy(task);
     } else {
         DEBUG0("nothing to compute !");


@@ -227,6 +256,7 @@ void process::send()
                       bind(&process::send1_no_bookkeeping, this, _1));
         prev_load_broadcast = load;
     }
                       bind(&process::send1_no_bookkeeping, this, _1));
         prev_load_broadcast = load;
     }

+    comm.flush(false);

 }
 
 void process::receive(bool wait)
 }
 
 void process::receive(bool wait)


@@ -234,7 +264,7 @@ void process::receive(bool wait)
     message* msg;
     m_host_t from;
 
     message* msg;
     m_host_t from;
 

-    if (may_receive() && comm.recv(msg, from, wait)) {
+    while (may_receive() && comm.recv(msg, from, wait)) {

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


@@ -261,7 +291,9 @@ void process::receive(bool wait)
             break;
         }
         delete msg;
             break;
         }
         delete msg;

+        wait = false;           // only wait on first recv

     }
     }

+    comm.flush(false);

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


@@ -285,8 +317,10 @@ void process::finalize()
 
     DEBUG2("wait for CLOSE from %lu neighbor%s",
            (unsigned long )neigh.size(), ESSE(neigh.size()));
 
     DEBUG2("wait for CLOSE from %lu neighbor%s",
            (unsigned long )neigh.size(), ESSE(neigh.size()));

-    while (may_receive())
+    while (may_receive()) {
+        comm.flush(false);

         receive(true);
         receive(true);

+    }

 
     comm.flush(true);
 }
 
     comm.flush(true);
 }