-#include "process.h"
-
#include <algorithm>
#include <tr1/functional>
#include <iterator>
#include <sstream>
#include <xbt/log.h>
#include <xbt/time.h>
+
+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;
rev_neigh.insert(std::make_pair(host, ptr));
}
+ prev_load_broadcast = -1; // force sending of load on first send()
expected_load = load;
total_load_init += load;
comm.next_close_on_ctrl_is_last();
comm.next_close_on_data_is_last();
}
- if (neigh.size() > 0)
+ close_received = false;
+ may_receive = (neigh.size() > 0); // the same as (ctrl_close_pending ||
+ // data_close_pending)
+ if (may_receive)
comm.listen();
e_xbt_log_priority_t logp = xbt_log_priority_verbose;
oss << neigh.back().get_name();
}
LOG1(logp, "Got %s.", oss.str().c_str());
- print_loads(logp);
+ print_loads(true, logp);
}
process::~process()
{
INFO1("Initial load: %g", load);
VERB0("Starting...");
- // first send() to inform neighbors about our load (force it)
- prev_load_broadcast = -1;
iter = 0;
bool one_more = true;
do {
INFO2("(%u) current load: %g",
iter, load);
}
- print_loads(xbt_log_priority_debug);
+ print_loads(true, xbt_log_priority_debug);
if (opt::bookkeeping)
expected_load -= load_balance(expected_load);
// 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.
+ // General idea: block on receiving unless there is
+ // something to compute, or to send, or we must exit.
// fixme: review this chunk, and remove this NDS macro!
+ // FIXME: HAD A DEADLOCK HERE...
+
bool recv_wait = (load == 0 && !NDS);
- bool close_received = !receive(recv_wait? WAIT: NO_WAIT);
+ DEBUG1("CALL RECEIVE(%s)", recv_wait? "WAIT": "NO_WAIT");
+ 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);
+ } while (one_more && may_receive && load == 0 && !NDS);
+ DEBUG0("RECEIVE LOOP ENDED");
#undef NDS
} while (one_more);
}
}
-bool process::receive(recv_wait_mode wait)
+void 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;
- bool do_recv = ctrl_close_pending || data_close_pending;
- while (do_recv && comm.recv(msg, from, wait)) {
+ bool do_loop = may_receive;
+ while (do_loop && comm.recv(msg, from, wait)) {
switch (msg->get_type()) {
case message::INFO: {
neighbor* n = rev_neigh[from];
case message::CTRL_CLOSE:
if (--ctrl_close_pending == 1)
comm.next_close_on_ctrl_is_last();
- DEBUG1("ctrl_close_pending = %d", ctrl_close_pending);
- result = false;
+ // DEBUG1("ctrl_close_pending = %d", ctrl_close_pending);
+ close_received = true;
break;
case message::DATA_CLOSE:
if (--data_close_pending == 1)
comm.next_close_on_data_is_last();
- DEBUG1("data_close_pending = %d", data_close_pending);
- result = false;
+ // DEBUG1("data_close_pending = %d", data_close_pending);
+ close_received = true;
break;
}
delete msg;
- do_recv = (wait == WAIT_FOR_CLOSE) &&
- (ctrl_close_pending || data_close_pending);
+ may_receive = (ctrl_close_pending || data_close_pending);
+ do_loop = (wait == WAIT_FOR_CLOSE) && may_receive;
}
- return result;
}
void process::finalize1(neighbor& nb)
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<double>(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:
