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a bit of cleanup, could go further but not now
[simgrid.git] / src / surf / host_clm03.cpp
index 189f709..18b646e 100644 (file)
-/* Copyright (c) 2013-2015. The SimGrid Team.
- * All rights reserved.                                                     */
+/* Copyright (c) 2013-2019. The SimGrid Team. All rights reserved.          */
 
 /* This program is free software; you can redistribute it and/or modify it
  * under the terms of the license (GNU LGPL) which comes with this package. */
 
-#include <cstdlib>
-
-#include <algorithm>
-
-#include "host_clm03.hpp"
-
-#include "cpu_cas01.hpp"
-#include "simgrid/sg_config.h"
-#include "virtual_machine.hpp"
+#include "src/surf/host_clm03.hpp"
+#include "simgrid/sg_config.hpp"
+#include "surf/surf.hpp"
 
 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_host);
 
-/*************
- * CallBacks *
- *************/
-
-/*********
- * Model *
- *********/
-
-void surf_host_model_init_current_default(void)
+void surf_host_model_init_current_default()
 {
   surf_host_model = new simgrid::surf::HostCLM03Model();
-  xbt_cfg_setdefault_boolean(_sg_cfg_set, "network/crosstraffic", "yes");
+  simgrid::config::set_default<bool>("network/crosstraffic", true);
   surf_cpu_model_init_Cas01();
   surf_network_model_init_LegrandVelho();
-
-  simgrid::surf::Model *model = surf_host_model;
-  xbt_dynar_push(all_existing_models, &model);
 }
 
 void surf_host_model_init_compound()
 {
   xbt_assert(surf_cpu_model_pm, "No CPU model defined yet!");
   xbt_assert(surf_network_model, "No network model defined yet!");
-
   surf_host_model = new simgrid::surf::HostCLM03Model();
-  xbt_dynar_push(all_existing_models, &surf_host_model);
 }
 
 namespace simgrid {
 namespace surf {
-
-Host *HostCLM03Model::createHost(const char *name,RoutingEdge *netElm, Cpu *cpu, xbt_dict_t props){
-  Host *host = new simgrid::surf::HostCLM03(surf_host_model, name, props,
-                 (xbt_dynar_t)xbt_lib_get_or_null(storage_lib, name, ROUTING_STORAGE_HOST_LEVEL),
-                 netElm, cpu);
-  XBT_DEBUG("Create host %s with %ld mounted disks", name, xbt_dynar_length(host->p_storage));
-  return host;
+HostCLM03Model::HostCLM03Model()
+{
+  all_existing_models.push_back(this);
 }
 
-double HostCLM03Model::shareResources(double now){
-  adjustWeightOfDummyCpuActions();
-
-  double min_by_cpu = surf_cpu_model_pm->shareResources(now);
-  double min_by_net = surf_network_model->shareResourcesIsIdempotent() ? surf_network_model->shareResources(now) : -1;
-  double min_by_sto = surf_storage_model->shareResources(now);
-
-  XBT_DEBUG("model %p, %s min_by_cpu %f, %s min_by_net %f, %s min_by_sto %f",
-      this, typeid(surf_cpu_model_pm).name(), min_by_cpu,
-               typeid(surf_network_model).name(), min_by_net,
-                       typeid(surf_storage_model).name(), min_by_sto);
-
-  double res = std::max(std::max(min_by_cpu, min_by_net), min_by_sto);
-  if (min_by_cpu >= 0.0 && min_by_cpu < res)
-       res = min_by_cpu;
-  if (min_by_net >= 0.0 && min_by_net < res)
-       res = min_by_net;
-  if (min_by_sto >= 0.0 && min_by_sto < res)
-       res = min_by_sto;
+double HostCLM03Model::next_occurring_event(double now)
+{
+  double min_by_cpu = surf_cpu_model_pm->next_occurring_event(now);
+  double min_by_net =
+      surf_network_model->next_occurring_event_is_idempotent() ? surf_network_model->next_occurring_event(now) : -1;
+  double min_by_sto = surf_storage_model->next_occurring_event(now);
+  double min_by_dsk = surf_disk_model->next_occurring_event(now);
+
+  XBT_DEBUG("model %p, %s min_by_cpu %f, %s min_by_net %f, %s min_by_sto %f, %s min_by_dsk %f", this,
+            typeid(surf_cpu_model_pm).name(), min_by_cpu, typeid(surf_network_model).name(), min_by_net,
+            typeid(surf_storage_model).name(), min_by_sto, typeid(surf_disk_model).name(), min_by_dsk);
+
+  double res = min_by_cpu;
+  if (res < 0 || (min_by_net >= 0.0 && min_by_net < res))
+    res = min_by_net;
+  if (res < 0 || (min_by_sto >= 0.0 && min_by_sto < res))
+    res = min_by_sto;
+  if (res < 0 || (min_by_dsk >= 0.0 && min_by_dsk < res))
+    res = min_by_dsk;
   return res;
 }
 
-void HostCLM03Model::updateActionsState(double /*now*/, double /*delta*/){
-  return;
+void HostCLM03Model::update_actions_state(double /*now*/, double /*delta*/)
+{
+  /* I've no action to update */
+}
+
+/* Helper function for executeParallelTask */
+static inline double has_cost(const double* array, size_t pos)
+{
+  if (array)
+    return array[pos];
+  return -1.0;
 }
 
-Action *HostCLM03Model::executeParallelTask(int host_nb,
-                                        sg_host_t *host_list,
-                                        double *flops_amount,
-                                        double *bytes_amount,
-                                        double rate){
-#define cost_or_zero(array,pos) ((array)?(array)[pos]:0.0)
-  Action *action =NULL;
-  if ((host_nb == 1)
-      && (cost_or_zero(bytes_amount, 0) == 0.0)){
-    action = surf_host_execute(host_list[0],flops_amount[0]);
-  } else if ((host_nb == 1)
-           && (cost_or_zero(flops_amount, 0) == 0.0)) {
-    action = surf_network_model->communicate(sg_host_edge(host_list[0]),
-                                                sg_host_edge(host_list[0]),
-                                                                                        bytes_amount[0], rate);
-  } else if ((host_nb == 2)
-             && (cost_or_zero(flops_amount, 0) == 0.0)
-             && (cost_or_zero(flops_amount, 1) == 0.0)) {
-    int i,nb = 0;
+kernel::resource::Action* HostCLM03Model::execute_parallel(const std::vector<s4u::Host*>& host_list,
+                                                           const double* flops_amount, const double* bytes_amount,
+                                                           double rate)
+{
+  kernel::resource::Action* action = nullptr;
+  if ((host_list.size() == 1) && (has_cost(bytes_amount, 0) <= 0) && (has_cost(flops_amount, 0) > 0)) {
+    action = host_list[0]->pimpl_cpu->execution_start(flops_amount[0]);
+  } else if ((host_list.size() == 1) && (has_cost(flops_amount, 0) <= 0)) {
+    action = surf_network_model->communicate(host_list[0], host_list[0], bytes_amount[0], rate);
+  } else if ((host_list.size() == 2) && (has_cost(flops_amount, 0) <= 0) && (has_cost(flops_amount, 1) <= 0)) {
+    int nb       = 0;
     double value = 0.0;
 
-    for (i = 0; i < host_nb * host_nb; i++) {
-      if (cost_or_zero(bytes_amount, i) > 0.0) {
+    for (size_t i = 0; i < host_list.size() * host_list.size(); i++) {
+      if (has_cost(bytes_amount, i) > 0.0) {
         nb++;
-        value = cost_or_zero(bytes_amount, i);
+        value = has_cost(bytes_amount, i);
       }
     }
-    if (nb == 1){
-      action = surf_network_model->communicate(sg_host_edge(host_list[0]),
-                                                  sg_host_edge(host_list[1]),
-                                                                                          value, rate);
+    if (nb == 1) {
+      action = surf_network_model->communicate(host_list[0], host_list[1], value, rate);
+    } else if (nb == 0) {
+      xbt_die("Cannot have a communication with no flop to exchange in this model. You should consider using the "
+              "ptask model");
+    } else {
+      xbt_die("Cannot have a communication that is not a simple point-to-point in this model. You should consider "
+              "using the ptask model");
     }
-  } else
-    THROW_UNIMPLEMENTED;      /* This model does not implement parallel tasks for more than 2 hosts */
-#undef cost_or_zero
-  xbt_free(host_list);
+  } else {
+    xbt_die(
+        "This model only accepts one of the following. You should consider using the ptask model for the other cases.\n"
+        " - execution with one host only and no communication\n"
+        " - Self-comms with one host only\n"
+        " - Communications with two hosts and no computation");
+  }
   return action;
 }
 
-/************
- * Resource *
- ************/
-HostCLM03::HostCLM03(HostModel *model, const char* name, xbt_dict_t properties, xbt_dynar_t storage, RoutingEdge *netElm, Cpu *cpu)
-  : Host(model, name, properties, storage, netElm, cpu) {}
-
-bool HostCLM03::isUsed(){
-  THROW_IMPOSSIBLE;             /* This model does not implement parallel tasks */
-  return -1;
-}
-
-void HostCLM03::updateState(tmgr_trace_event_t /*event_type*/, double /*value*/, double /*date*/){
-  THROW_IMPOSSIBLE;             /* This model does not implement parallel tasks */
-}
-
-Action *HostCLM03::execute(double size) {
-  return p_cpu->execute(size);
-}
-
-Action *HostCLM03::sleep(double duration) {
-  return p_cpu->sleep(duration);
-}
-
-e_surf_resource_state_t HostCLM03::getState() {
-  return p_cpu->getState();
-}
-
-/**********
- * Action *
- **********/
-
-}
-}
+} // namespace surf
+} // namespace simgrid