X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/661875a3cf8631bf02abe783b948fb8c0230b67f..9b73466ada27682d1729f394549479da83ef4a99:/src/surf/cpu_cas01.c?ds=inline diff --git a/src/surf/cpu_cas01.c b/src/surf/cpu_cas01.c index aa3379993a..c267e86aa2 100644 --- a/src/surf/cpu_cas01.c +++ b/src/surf/cpu_cas01.c @@ -1,4 +1,4 @@ -/* Copyright (c) 2009-2011. The SimGrid Team. +/* Copyright (c) 2009-2013. The SimGrid Team. * All rights reserved. */ /* This program is free software; you can redistribute it and/or modify it @@ -8,31 +8,38 @@ #include "surf/surf_resource.h" #include "maxmin_private.h" #include "simgrid/sg_config.h" -#include "surf/cpu_cas01_private.h" +#include "cpu_cas01_private.h" + +#include "string.h" +#include "stdlib.h" /* the model objects for physical machines and virtual machines */ surf_model_t surf_cpu_model_pm = NULL; surf_model_t surf_cpu_model_vm = NULL; -#undef GENERIC_LMM_ACTION -#undef GENERIC_ACTION -#undef ACTION_GET_CPU -#define GENERIC_LMM_ACTION(action) action->generic_lmm_action -#define GENERIC_ACTION(action) GENERIC_LMM_ACTION(action).generic_action -#define ACTION_GET_CPU(action) ((surf_action_cpu_Cas01_t) action)->cpu - -typedef struct surf_action_cpu_cas01 { - s_surf_action_lmm_t generic_lmm_action; -} s_surf_action_cpu_Cas01_t, *surf_action_cpu_Cas01_t; - XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_cpu, surf, "Logging specific to the SURF CPU IMPROVED module"); static xbt_swag_t cpu_running_action_set_that_does_not_need_being_checked = NULL; +/* Additionnal callback function to cleanup some data, called from surf_resource_free */ + +static void cpu_cas01_cleanup(void* r){ + cpu_Cas01_t cpu = (cpu_Cas01_t)r; + unsigned int iter; + xbt_dynar_t power_tuple = NULL; + xbt_dynar_foreach(cpu->energy->power_range_watts_list, iter, power_tuple) + xbt_dynar_free(&power_tuple); + xbt_dynar_free(&cpu->energy->power_range_watts_list); + xbt_dynar_free(&cpu->power_peak_list); + xbt_free(cpu->energy); + return; +} -void *cpu_cas01_create_resource(const char *name, double power_peak, +/* This function is registered as a callback to sg_platf_new_host() and never called directly */ +void *cpu_cas01_create_resource(const char *name, xbt_dynar_t power_peak, + int pstate, double power_scale, tmgr_trace_t power_trace, int core, @@ -48,8 +55,18 @@ void *cpu_cas01_create_resource(const char *name, double power_peak, name); cpu = (cpu_Cas01_t) surf_resource_new(sizeof(s_cpu_Cas01_t), cpu_model, name, - cpu_properties); - cpu->power_peak = power_peak; + cpu_properties, &cpu_cas01_cleanup); + cpu->power_peak = xbt_dynar_get_as(power_peak, pstate, double); + cpu->power_peak_list = power_peak; + cpu->pstate = pstate; + + cpu->energy = xbt_new(s_energy_cpu_cas01_t, 1); + cpu->energy->total_energy = 0; + cpu->energy->power_range_watts_list = cpu_get_watts_range_list(cpu); + cpu->energy->last_updated = surf_get_clock(); + + XBT_DEBUG("CPU create: peak=%f, pstate=%d",cpu->power_peak, cpu->pstate); + xbt_assert(cpu->power_peak > 0, "Power has to be >0"); cpu->power_scale = power_scale; cpu->core = core; @@ -101,6 +118,7 @@ static void parse_cpu_init(sg_platf_host_cbarg_t host) * machine layer. */ cpu_cas01_create_resource(host->id, host->power_peak, + host->pstate, host->power_scale, host->power_trace, host->core_amount, @@ -187,6 +205,110 @@ static void cpu_update_actions_state_full(surf_model_t cpu_model, double now, do generic_update_actions_state_full(now, delta, cpu_model); } +xbt_dynar_t cpu_get_watts_range_list(cpu_Cas01_t cpu_model) +{ + xbt_dynar_t power_range_list; + xbt_dynar_t power_tuple; + int i = 0, pstate_nb=0; + xbt_dynar_t current_power_values; + double min_power, max_power; + xbt_dict_t props = cpu_model->generic_resource.properties; + + if (props == NULL) + return NULL; + + char* all_power_values_str = xbt_dict_get_or_null(props, "power_per_state"); + + if (all_power_values_str == NULL) + return NULL; + + + power_range_list = xbt_dynar_new(sizeof(xbt_dynar_t), NULL); + xbt_dynar_t all_power_values = xbt_str_split(all_power_values_str, ","); + + pstate_nb = xbt_dynar_length(all_power_values); + for (i=0; i< pstate_nb; i++) + { + /* retrieve the power values associated with the current pstate */ + current_power_values = xbt_str_split(xbt_dynar_get_as(all_power_values, i, char*), ":"); + xbt_assert(xbt_dynar_length(current_power_values) > 1, + "Power properties incorrectly defined - could not retrieve min and max power values for host %s", + cpu_model->generic_resource.name); + + /* min_power corresponds to the idle power (cpu load = 0) */ + /* max_power is the power consumed at 100% cpu load */ + min_power = atof(xbt_dynar_get_as(current_power_values, 0, char*)); + max_power = atof(xbt_dynar_get_as(current_power_values, 1, char*)); + + power_tuple = xbt_dynar_new(sizeof(double), NULL); + xbt_dynar_push_as(power_tuple, double, min_power); + xbt_dynar_push_as(power_tuple, double, max_power); + + xbt_dynar_push_as(power_range_list, xbt_dynar_t, power_tuple); + xbt_dynar_free(¤t_power_values); + } + xbt_dynar_free(&all_power_values); + return power_range_list; + +} + +/** + * Computes the power consumed by the host according to the current pstate and processor load + * + */ +static double cpu_get_current_watts_value(cpu_Cas01_t cpu_model, double cpu_load) +{ + xbt_dynar_t power_range_list = cpu_model->energy->power_range_watts_list; + + if (power_range_list == NULL) + { + XBT_DEBUG("No power range properties specified for host %s", cpu_model->generic_resource.name); + return 0; + } + xbt_assert(xbt_dynar_length(power_range_list) == xbt_dynar_length(cpu_model->power_peak_list), + "The number of power ranges in the properties does not match the number of pstates for host %s", + cpu_model->generic_resource.name); + + /* retrieve the power values associated with the current pstate */ + xbt_dynar_t current_power_values = xbt_dynar_get_as(power_range_list, cpu_model->pstate, xbt_dynar_t); + + /* min_power corresponds to the idle power (cpu load = 0) */ + /* max_power is the power consumed at 100% cpu load */ + double min_power = xbt_dynar_get_as(current_power_values, 0, double); + double max_power = xbt_dynar_get_as(current_power_values, 1, double); + double power_slope = max_power - min_power; + + double current_power = min_power + cpu_load * power_slope; + + XBT_DEBUG("[get_current_watts] min_power=%f, max_power=%f, slope=%f", min_power, max_power, power_slope); + XBT_DEBUG("[get_current_watts] Current power (watts) = %f, load = %f", current_power, cpu_load); + + return current_power; + +} + +/** + * Updates the total energy consumed as the sum of the current energy and + * the energy consumed by the current action + */ +void cpu_update_energy(cpu_Cas01_t cpu_model, double cpu_load) +{ + + double start_time = cpu_model->energy->last_updated; + double finish_time = surf_get_clock(); + + XBT_DEBUG("[cpu_update_energy] action time interval=(%f-%f), current power peak=%f, current pstate=%d", + start_time, finish_time, cpu_model->power_peak, cpu_model->pstate); + double current_energy = cpu_model->energy->total_energy; + double action_energy = cpu_get_current_watts_value(cpu_model, cpu_load)*(finish_time-start_time); + + cpu_model->energy->total_energy = current_energy + action_energy; + cpu_model->energy->last_updated = finish_time; + + XBT_DEBUG("[cpu_update_energy] old_energy_value=%f, action_energy_value=%f", current_energy, action_energy); + +} + static void cpu_update_resource_state(void *id, tmgr_trace_event_t event_type, double value, double date) @@ -196,8 +318,6 @@ static void cpu_update_resource_state(void *id, lmm_element_t elem = NULL; surf_model_t cpu_model = ((surf_resource_t) cpu)->model; - surf_watched_hosts(); - if (event_type == cpu->power_event) { /* TODO (Hypervisor): do the same thing for constraint_core[i] */ xbt_assert(cpu->core == 1, "FIXME: add power scaling code also for constraint_core[i]"); @@ -224,9 +344,11 @@ static void cpu_update_resource_state(void *id, /* TODO (Hypervisor): do the same thing for constraint_core[i] */ xbt_assert(cpu->core == 1, "FIXME: add state change code also for constraint_core[i]"); - if (value > 0) + if (value > 0) { + if(cpu->state_current == SURF_RESOURCE_OFF) + xbt_dynar_push_as(host_that_restart, char*, (cpu->generic_resource.name)); cpu->state_current = SURF_RESOURCE_ON; - else { + } else { lmm_constraint_t cnst = cpu->constraint; cpu->state_current = SURF_RESOURCE_OFF; @@ -335,6 +457,7 @@ static void cpu_action_set_affinity(surf_action_t action, void *cpu, unsigned lo static surf_action_t cpu_execute(void *cpu, double size) { surf_action_cpu_Cas01_t action = NULL; + //xbt_dict_cursor_t cursor = NULL; cpu_Cas01_t CPU = surf_cpu_resource_priv(cpu); surf_model_t cpu_model = ((surf_resource_t) CPU)->model; @@ -430,6 +553,40 @@ static double cpu_get_available_speed(void *cpu) return ((cpu_Cas01_t)surf_cpu_resource_priv(cpu))->power_scale; } +static double cpu_get_current_power_peak(void *cpu) +{ + return ((cpu_Cas01_t)surf_cpu_resource_priv(cpu))->power_peak; +} + +static double cpu_get_power_peak_at(void *cpu, int pstate_index) +{ + xbt_dynar_t plist = ((cpu_Cas01_t)surf_cpu_resource_priv(cpu))->power_peak_list; + xbt_assert((pstate_index <= xbt_dynar_length(plist)), "Invalid parameters (pstate index out of bounds)"); + + return xbt_dynar_get_as(plist, pstate_index, double); +} + +static int cpu_get_nb_pstates(void *cpu) +{ + return xbt_dynar_length(((cpu_Cas01_t)surf_cpu_resource_priv(cpu))->power_peak_list); +} + +static void cpu_set_power_peak_at(void *cpu, int pstate_index) +{ + cpu_Cas01_t cpu_implem = (cpu_Cas01_t)surf_cpu_resource_priv(cpu); + xbt_dynar_t plist = cpu_implem->power_peak_list; + xbt_assert((pstate_index <= xbt_dynar_length(plist)), "Invalid parameters (pstate index out of bounds)"); + + double new_power_peak = xbt_dynar_get_as(plist, pstate_index, double); + cpu_implem->pstate = pstate_index; + cpu_implem->power_peak = new_power_peak; +} + +static double cpu_get_consumed_energy(void *cpu) +{ + return ((cpu_Cas01_t)surf_cpu_resource_priv(cpu))->energy->total_energy; +} + static void cpu_finalize(surf_model_t cpu_model) { lmm_system_free(cpu_model->model_private->maxmin_system); @@ -522,6 +679,12 @@ static surf_model_t surf_cpu_model_init_cas01(void) cpu_model->extension.cpu.get_speed = cpu_get_speed; cpu_model->extension.cpu.get_available_speed = cpu_get_available_speed; + cpu_model->extension.cpu.get_current_power_peak = cpu_get_current_power_peak; + cpu_model->extension.cpu.get_power_peak_at = cpu_get_power_peak_at; + cpu_model->extension.cpu.get_nb_pstates = cpu_get_nb_pstates; + cpu_model->extension.cpu.set_power_peak_at = cpu_set_power_peak_at; + cpu_model->extension.cpu.get_consumed_energy = cpu_get_consumed_energy; + cpu_model->extension.cpu.add_traces = cpu_add_traces_cpu; if (!cpu_model->model_private->maxmin_system) {