src/smpi/internals/smpi_dvfs.cpp

   1 /* Copyright (c) 2013-2019. The SimGrid Team. All rights reserved.          */
   2
   3 /* This program is free software; you can redistribute it and/or modify it
   4  * under the terms of the license (GNU LGPL) which comes with this package. */
   5
   6 #include <xbt/log.h>
   7
   8 // FIXME: this plugin should be separated from the core
   9 #include "simgrid/s4u/Host.hpp"
  10 #include <simgrid/plugins/energy.h>
  11 #include <simgrid/simix.h>
  12
  13 #include <smpi/smpi.h>
  14
  15 #include "src/internal_config.h"
  16
  17 #if SMPI_FORTRAN
  18
  19 // FIXME: rework these bindings, or kill them completely
  20
  21 #if defined(__alpha__) || defined(__sparc64__) || defined(__x86_64__) || defined(__ia64__)
  22 typedef int integer;
  23 #else
  24 typedef long int integer;
  25 #endif
  26 typedef double doublereal;
  27
  28 /**
  29  * @brief Return the speed of the processor (in flop/s) at a given pstate
  30  *
  31  * @param pstate_index pstate to test
  32  * @return Returns the processor speed associated with pstate_index
  33  */
  34 extern "C" XBT_PUBLIC doublereal smpi_get_host_power_peak_at_(integer* pstate_index);
  35 doublereal smpi_get_host_power_peak_at_(integer *pstate_index)
  36 {
  37   return static_cast<doublereal>(sg_host_self()->get_pstate_speed(static_cast<int>(*pstate_index)));
  38 }
  39
  40 /**
  41  * @brief Return the current speed of the processor (in flop/s)
  42  *
  43  * @return Returns the current processor speed
  44  */
  45 extern "C" XBT_PUBLIC doublereal smpi_get_host_current_power_peak_();
  46 doublereal smpi_get_host_current_power_peak_()
  47 {
  48   return static_cast<doublereal>(sg_host_self()->get_speed());
  49 }
  50
  51 /**
  52  * @brief Return the number of pstates defined for the current host
  53  */
  54 extern "C" XBT_PUBLIC integer smpi_get_host_nb_pstates_();
  55 integer smpi_get_host_nb_pstates_()
  56 {
  57   return static_cast<integer>(sg_host_self()->get_pstate_count());
  58 }
  59
  60 /**
  61  * @brief Sets the pstate at which the processor should run
  62  *
  63  * @param pstate_index pstate to switch to
  64  */
  65 extern "C" XBT_PUBLIC void smpi_set_host_pstate_(integer* pstate_index);
  66 void smpi_set_host_pstate_(integer *pstate_index)
  67 {
  68   sg_host_set_pstate(sg_host_self(), (static_cast<int>(*pstate_index)));
  69 }
  70
  71 /**
  72  * @brief Gets the pstate at which the processor currently running
  73  */
  74 extern "C" XBT_PUBLIC integer smpi_get_host_pstate_();
  75 integer smpi_get_host_pstate_()
  76 {
  77   return static_cast<integer>(sg_host_get_pstate(sg_host_self()));
  78 }
  79 /**
  80  * @brief Return the total energy consumed by a host (in Joules)
  81  *
  82  * @return Returns the consumed energy
  83  */
  84 extern "C" XBT_PUBLIC doublereal smpi_get_host_consumed_energy_();
  85 doublereal smpi_get_host_consumed_energy_()
  86 {
  87   return static_cast<doublereal>(sg_host_get_consumed_energy(sg_host_self()));
  88 }
  89
  90 #endif