X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/6476a16657a34172e7d1098f581c8f920ba7f791..731c4a5371dc691c8eb833f7d4617c7a94f91680:/src/smpi/smpi_dvfs.cpp

diff --git a/src/smpi/smpi_dvfs.cpp b/src/smpi/smpi_dvfs.cpp
new file mode 100644
index 0000000000..c0b01ac9ed
--- /dev/null
+++ b/src/smpi/smpi_dvfs.cpp
@@ -0,0 +1,119 @@
+/* Copyright (c) 2013-2015. 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 "simgrid/plugins/energy.h" // FIXME: this plugin should be separated from the core
+#include "xbt/log.h"
+#include "simgrid/simix.h"
+#include "smpi/smpi.h"
+#include "src/internal_config.h"
+
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_dvfs, smpi,
+                                "Logging specific to SMPI (experimental DVFS support)");
+
+/**
+ * \brief Return the speed of the processor (in flop/s) at a given pstate
+ *
+ * \param pstate_index pstate to test
+ * \return Returns the processor speed associated with pstate_index
+ */
+double smpi_get_host_power_peak_at(int pstate_index)
+{
+  return simcall_host_get_power_peak_at(SIMIX_host_self(), pstate_index);
+}
+
+/**
+ * \brief Return the current speed of the processor (in flop/s)
+ *
+ * \return Returns the current processor speed
+ */
+double smpi_get_host_current_power_peak(void)
+{
+  return simcall_host_get_current_power_peak(SIMIX_host_self());
+}
+
+/**
+ * \brief Return the number of pstates defined for the current host
+ */
+int smpi_get_host_nb_pstates(void)
+{
+  return sg_host_get_nb_pstates(SIMIX_host_self());
+}
+
+/**
+ * \brief Sets the pstate at which the processor should run
+ *
+ * \param pstate_index pstate to switch to
+ */
+void smpi_set_host_pstate(int pstate_index)
+{
+  sg_host_set_pstate(SIMIX_host_self(), pstate_index);
+}
+/**
+ * \brief Gets the pstate at which the processor currently running
+ *
+ * \param pstate_index pstate to switch to
+ */
+int smpi_get_host_pstate() {
+  return sg_host_get_pstate(SIMIX_host_self());
+}
+
+/**
+ * \brief Return the total energy consumed by a host (in Joules)
+ *
+ * \return Returns the consumed energy
+ */
+double smpi_get_host_consumed_energy(void) {
+  return sg_host_get_consumed_energy(SIMIX_host_self());
+}
+
+
+#ifdef SMPI_FORTRAN
+
+#if defined(__alpha__) || defined(__sparc64__) || defined(__x86_64__) || defined(__ia64__)
+typedef int integer;
+typedef unsigned int uinteger;
+#else
+typedef long int integer;
+typedef unsigned long int uinteger;
+#endif
+typedef char *address;
+typedef short int shortint;
+typedef float real;
+typedef double doublereal;
+typedef struct { real r, i; } complex;
+typedef struct { doublereal r, i; } doublecomplex;
+
+extern "C" XBT_PUBLIC(doublereal) smpi_get_host_power_peak_at_(integer *pstate_index);
+doublereal smpi_get_host_power_peak_at_(integer *pstate_index)
+{
+  return (doublereal)smpi_get_host_power_peak_at((int)*pstate_index);
+}
+
+extern "C" XBT_PUBLIC(doublereal) smpi_get_host_current_power_peak_(void);
+doublereal smpi_get_host_current_power_peak_(void)
+{
+  return smpi_get_host_current_power_peak();
+}
+
+extern "C" XBT_PUBLIC(integer) smpi_get_host_nb_pstates_(void);
+integer smpi_get_host_nb_pstates_(void)
+{
+  return (integer)smpi_get_host_nb_pstates();
+}
+
+extern "C" XBT_PUBLIC(void) smpi_set_host_pstate_(integer *pstate_index);
+void smpi_set_host_pstate_(integer *pstate_index)
+{
+  smpi_set_host_pstate((int)*pstate_index);
+}
+
+extern "C" XBT_PUBLIC(doublereal) smpi_get_host_consumed_energy_(void);
+doublereal smpi_get_host_consumed_energy_(void)
+{
+  return (doublereal)smpi_get_host_consumed_energy();
+}
+
+#endif