X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/39f579ce40d3bd04d9f64a7914b07d1ec3334e4b..7f90173083cea6c05e9a2418bc11c47750d006d8:/src/surf/host_clm03.cpp

diff --git a/src/surf/host_clm03.cpp b/src/surf/host_clm03.cpp
index d7f29954ee..5d1b3f95d5 100644
--- a/src/surf/host_clm03.cpp
+++ b/src/surf/host_clm03.cpp
@@ -1,4 +1,4 @@
-/* Copyright (c) 2013-2019. The SimGrid Team. All rights reserved.          */
+/* Copyright (c) 2013-2020. 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. */
@@ -30,6 +30,7 @@ HostCLM03Model::HostCLM03Model()
 {
   all_existing_models.push_back(this);
 }
+
 double HostCLM03Model::next_occurring_event(double now)
 {
   double min_by_cpu = surf_cpu_model_pm->next_occurring_event(now);
@@ -57,5 +58,51 @@ 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;
+}
+
+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 (size_t i = 0; i < host_list.size() * host_list.size(); i++) {
+      if (has_cost(bytes_amount, i) > 0.0) {
+        nb++;
+        value = has_cost(bytes_amount, i);
+      }
+    }
+    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 {
+    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;
+}
+
 } // namespace surf
 } // namespace simgrid