src/smpi/smpi_bench.c

   1 #include "private.h"
   2
   3 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_bench, smpi,
   4                                 "Logging specific to SMPI (benchmarking)");
   5
   6 static void smpi_execute(double duration) {
   7   smx_host_t host;
   8   smx_action_t action;
   9   smx_mutex_t mutex;
  10   smx_cond_t cond;
  11   e_surf_action_state_t state;
  12
  13   if(duration > 0.001) {
  14     host = SIMIX_host_self();
  15     mutex = SIMIX_mutex_init();
  16     cond = SIMIX_cond_init();
  17     DEBUG1("Sleep for %f to handle real computation time", duration);
  18     duration *= xbt_cfg_get_double(_surf_cfg_set, "reference_speed");
  19     action = SIMIX_action_execute(host, "computation", duration);
  20     SIMIX_mutex_lock(mutex);
  21     SIMIX_register_action_to_condition(action, cond);
  22     for(state = SIMIX_action_get_state(action);
  23         state == SURF_ACTION_READY ||
  24         state == SURF_ACTION_RUNNING; state = SIMIX_action_get_state(action)) {
  25       SIMIX_cond_wait(cond, mutex);
  26     }
  27     SIMIX_unregister_action_to_condition(action, cond);
  28     SIMIX_mutex_unlock(mutex);
  29     SIMIX_action_destroy(action);
  30     SIMIX_cond_destroy(cond);
  31     SIMIX_mutex_destroy(mutex);
  32   }
  33 }
  34
  35 void smpi_bench_begin(int rank, const char* mpi_call) {
  36   double now = SIMIX_get_clock();
  37
  38   if(mpi_call && rank > 0 && xbt_cfg_get_int(_surf_cfg_set, "SMPE")) {
  39     INFO3("SMPE: ts=%f rank=%d type=end et=%s", now, rank, mpi_call);
  40   }
  41   xbt_os_timer_start(smpi_process_timer());
  42 }
  43
  44 void smpi_bench_end(int rank, const char* mpi_call) {
  45   xbt_os_timer_t timer = smpi_process_timer();
  46   double now = SIMIX_get_clock();
  47
  48   xbt_os_timer_stop(timer);
  49   smpi_execute(xbt_os_timer_elapsed(timer));
  50   if(mpi_call && rank > 0 && xbt_cfg_get_int(_surf_cfg_set, "SMPE")) {
  51     INFO3("SMPE: ts=%f rank=%d type=begin et=%s", now, rank, mpi_call);
  52   }
  53 }
  54
  55 /*
  56 TODO
  57 void smpi_do_once_1(const char *file, int line)
  58 {
  59   smpi_do_once_duration_node_t curr, prev;
  60
  61   smpi_bench_end();
  62   SIMIX_mutex_lock(smpi_global->do_once_mutex);
  63   prev = NULL;
  64   for(curr = smpi_global->do_once_duration_nodes;
  65       NULL != curr && (strcmp(curr->file, file) || curr->line != line);
  66       curr = curr->next) {
  67     prev = curr;
  68   }
  69   if(NULL == curr) {
  70     curr = xbt_new(s_smpi_do_once_duration_node_t, 1);
  71     curr->file = xbt_strdup(file);
  72     curr->line = line;
  73     curr->duration = -1;
  74     curr->next = NULL;
  75     if(NULL == prev) {
  76       smpi_global->do_once_duration_nodes = curr;
  77     } else {
  78       prev->next = curr;
  79     }
  80   }
  81   smpi_global->do_once_duration = &curr->duration;
  82 }
  83
  84 int smpi_do_once_2()
  85 {
  86   double duration = *(smpi_global->do_once_duration);
  87
  88   if(0 > duration) {
  89     smpi_start_timer();
  90     return 1;
  91   }
  92   SIMIX_mutex_unlock(smpi_global->do_once_mutex);
  93   smpi_execute(duration);
  94   smpi_bench_begin();
  95   return 0;
  96 }
  97
  98 void smpi_do_once_3()
  99 {
 100   *(smpi_global->do_once_duration) = smpi_stop_timer();
 101 }
 102 */