X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/8937f1426cc4c3bbe77178ce3a9cdc0687263a8e..d1283facbb31a936d01dd2c14982724aa30d3661:/src/s4u/s4u_Host.cpp

diff --git a/src/s4u/s4u_Host.cpp b/src/s4u/s4u_Host.cpp
index 6c27ca36db..3c5e613344 100644
--- a/src/s4u/s4u_Host.cpp
+++ b/src/s4u/s4u_Host.cpp
@@ -1,4 +1,4 @@
-/* Copyright (c) 2006-2018. The SimGrid Team. All rights reserved.          */
+/* Copyright (c) 2006-2019. 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. */
@@ -196,6 +196,22 @@ void Host::set_property(std::string key, std::string value)
 {
   simgrid::simix::simcall([this, key, value] { this->pimpl_->set_property(key, value); });
 }
+/** Specify a profile turning the host on and off according to a exhaustive list or a stochastic law.
+ * The profile must contain boolean values. */
+void Host::set_state_profile(kernel::profile::Profile* p)
+{
+  return simgrid::simix::simcall([this, p] { pimpl_cpu->set_state_profile(p); });
+}
+/** Specify a profile modeling the external load according to a exhaustive list or a stochastic law.
+ *
+ * Each event of the profile represent a peak speed change that is due to external load. The values are given as a rate
+ * of the initial value. This means that the actual value is obtained by multiplying the initial value (the peek speed
+ * at this pstate level) by the rate coming from the profile.
+ */
+void Host::set_speed_profile(kernel::profile::Profile* p)
+{
+  return simgrid::simix::simcall([this, p] { pimpl_cpu->set_speed_profile(p); });
+}
 
 /** @brief Get the peak processor speed (in flops/s), at the specified pstate  */
 double Host::get_pstate_speed(int pstate_index) const
@@ -203,13 +219,13 @@ double Host::get_pstate_speed(int pstate_index) const
   return simgrid::simix::simcall([this, pstate_index] { return this->pimpl_cpu->get_pstate_peak_speed(pstate_index); });
 }
 
-/** @brief Get the peak computing speed in flops/s at the current pstate, taking the external load into account.
+/** @brief Get the peak computing speed in flops/s at the current pstate, NOT taking the external load into account.
  *
  *  The amount of flops per second available for computing depends on several things:
  *    - The current pstate determines the maximal peak computing speed (use @ref get_pstate_speed() to retrieve the
  *      computing speed you would get at another pstate)
- *    - If you declared an external load, then this reduces the available computing speed
- *      (see @ref simgrid::surf::Cpu::set_speed_trace())
+ *    - If you declared an external load (with @ref simgrid::surf::Cpu::set_speed_profile()), you must multiply the
+ * result of get_speed() by get_available_speed() to retrieve what a new computation would get.
  *
  *  The remaining speed is then shared between the executions located on this host.
  *  You can retrieve the amount of tasks currently running on this host with @ref get_load().
@@ -233,7 +249,7 @@ double Host::get_load() const
 }
 /** @brief Get the available speed ratio, between 0 and 1.
  *
- * This accounts for external load (see @ref simgrid::surf::Cpu::set_speed_trace()).
+ * This accounts for external load (see @ref simgrid::surf::Cpu::set_speed_profile()).
  */
 double Host::get_available_speed() const
 {
@@ -295,6 +311,7 @@ void Host::execute(double flops)
 {
   execute(flops, 1.0 /* priority */);
 }
+
 void Host::execute(double flops, double priority)
 {
   this_actor::exec_init(flops)->set_host(this)->set_priority(1 / priority)->start()->wait();