-/* Authors: Arnaud Legrand */
+/* $Id$ */
+
+/* Copyright (c) 2004 Arnaud Legrand. 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. */
+ * under the terms of the license (GNU LGPL) which comes with this package. */
#include "cpu_private.h"
-#include "xbt/dict.h"
+
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_cpu, surf,
+ "Logging specific to the SURF CPU module");
surf_cpu_resource_t surf_cpu_resource = NULL;
-static xbt_dict_t cpu_set = NULL;
-static lmm_system_t sys = NULL;
+lmm_system_t cpu_maxmin_system = NULL;
-/* power_scale is the basic power of the cpu when the cpu is
- completely available. initial_power is therefore expected to be
- comprised between 0.0 and 1.0, just as the values of power_trace.
- state_trace values mean SURF_CPU_ON if >0 and SURF_CPU_OFF
- otherwise.
-*/
+xbt_dict_t cpu_set = NULL;
-static void *new_cpu(const char *name, xbt_maxmin_float_t power_scale,
- xbt_maxmin_float_t initial_power, tmgr_trace_t power_trace,
- e_surf_cpu_state_t initial_state, tmgr_trace_t state_trace)
+static void cpu_free(void *cpu)
{
- cpu_t cpu = xbt_new0(s_cpu_t,1);
+ free(((cpu_Cas01_t) cpu)->name);
+ free(cpu);
+}
+static cpu_Cas01_t cpu_new(char *name, double power_scale,
+ double power_initial,
+ tmgr_trace_t power_trace,
+ e_surf_cpu_state_t state_initial,
+ tmgr_trace_t state_trace)
+{
+ cpu_Cas01_t cpu = xbt_new0(s_cpu_Cas01_t, 1);
+
+ cpu->resource = (surf_resource_t) surf_cpu_resource;
cpu->name = name;
cpu->power_scale = power_scale;
- cpu->current_power = initial_power;
- cpu->power_trace = power_trace;
- if(power_trace) tmgr_history_add_trace(history, power_trace, 0.0, 0, cpu);
+ xbt_assert0(cpu->power_scale > 0, "Power has to be >0");
+ cpu->power_current = power_initial;
+ if (power_trace)
+ cpu->power_event =
+ tmgr_history_add_trace(history, power_trace, 0.0, 0, cpu);
- cpu->current_state = initial_state;
- cpu->state_trace = state_trace;
- if(state_trace) tmgr_history_add_trace(history, state_trace, 0.0, 0, cpu);
+ cpu->state_current = state_initial;
+ if (state_trace)
+ cpu->state_event =
+ tmgr_history_add_trace(history, state_trace, 0.0, 0, cpu);
- cpu->constraint = lmm_constraint_new(sys, cpu, cpu->current_power * cpu->power_scale);
+ cpu->constraint =
+ lmm_constraint_new(cpu_maxmin_system, cpu,
+ cpu->power_current * cpu->power_scale);
- xbt_dict_set(cpu_set, name, cpu, NULL);
+ xbt_dict_set(cpu_set, name, cpu, cpu_free);
return cpu;
}
-static void parse_file(const char *file)
+static void parse_cpu(void)
{
- tmgr_trace_t trace_A = tmgr_trace_new("trace_A.txt");
- tmgr_trace_t trace_B = tmgr_trace_new("trace_B.txt");
+ char *name = NULL;
+ double power_scale = 0.0;
+ double power_initial = 0.0;
+ tmgr_trace_t power_trace = NULL;
+ e_surf_cpu_state_t state_initial = SURF_CPU_OFF;
+ tmgr_trace_t state_trace = NULL;
+
+ name = xbt_strdup(A_surfxml_cpu_name);
+ surf_parse_get_double(&power_scale, A_surfxml_cpu_power);
+ surf_parse_get_double(&power_initial, A_surfxml_cpu_availability);
+ surf_parse_get_trace(&power_trace, A_surfxml_cpu_availability_file);
+
+ xbt_assert0((A_surfxml_cpu_state == A_surfxml_cpu_state_ON) ||
+ (A_surfxml_cpu_state == A_surfxml_cpu_state_OFF),
+ "Invalid state");
+ if (A_surfxml_cpu_state == A_surfxml_cpu_state_ON)
+ state_initial = SURF_CPU_ON;
+ if (A_surfxml_cpu_state == A_surfxml_cpu_state_OFF)
+ state_initial = SURF_CPU_OFF;
+ surf_parse_get_trace(&state_trace, A_surfxml_cpu_state_file);
+
+ cpu_new(name, power_scale, power_initial, power_trace, state_initial,
+ state_trace);
+}
- new_cpu("Cpu A", 20.0, 1.0, trace_A, SURF_CPU_ON, NULL);
- new_cpu("Cpu B", 120.0, 1.0, trace_B, SURF_CPU_ON, NULL);
+static void parse_file(const char *file)
+{
+ surf_parse_reset_parser();
+ ETag_surfxml_cpu_fun = parse_cpu;
+ surf_parse_open(file);
+ xbt_assert1((!surf_parse()), "Parse error in %s", file);
+ surf_parse_close();
}
static void *name_service(const char *name)
{
- void *cpu=NULL;
-
- xbt_dict_get(cpu_set, name, &cpu);
-
- return cpu;
+ return xbt_dict_get_or_null(cpu_set, name);
}
static const char *get_resource_name(void *resource_id)
{
- return ((cpu_t) resource_id)->name;
+ return ((cpu_Cas01_t) resource_id)->name;
}
static int resource_used(void *resource_id)
{
- return lmm_constraint_used(sys, ((cpu_t)resource_id)->constraint);
-}
-
-static surf_action_t action_new(void *callback)
-{
- return NULL;
+ return lmm_constraint_used(cpu_maxmin_system,
+ ((cpu_Cas01_t) resource_id)->constraint);
}
-static e_surf_action_state_t action_get_state(surf_action_t action)
+static int action_free(surf_action_t action)
{
- return SURF_ACTION_NOT_IN_THE_SYSTEM;
+ action->using--;
+ if (!action->using) {
+ xbt_swag_remove(action, action->state_set);
+ if (((surf_action_cpu_Cas01_t) action)->variable)
+ lmm_variable_free(cpu_maxmin_system,
+ ((surf_action_cpu_Cas01_t) action)->variable);
+ free(action);
+ return 1;
+ }
+ return 0;
}
-static void action_free(surf_action_t * action)
+static void action_use(surf_action_t action)
{
- return;
+ action->using++;
}
static void action_cancel(surf_action_t action)
{
+ surf_action_change_state(action, SURF_ACTION_FAILED);
return;
}
static void action_recycle(surf_action_t action)
{
- return;
+ DIE_IMPOSSIBLE;
}
-static void action_change_state(surf_action_t action, e_surf_action_state_t state)
+static void action_change_state(surf_action_t action,
+ e_surf_action_state_t state)
{
+/* if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED)) */
+/* if(((surf_action_cpu_Cas01_t)action)->variable) { */
+/* lmm_variable_disable(cpu_maxmin_system, ((surf_action_cpu_Cas01_t)action)->variable); */
+/* ((surf_action_cpu_Cas01_t)action)->variable = NULL; */
+/* } */
+
surf_action_change_state(action, state);
return;
}
-static xbt_heap_float_t share_resources()
+static double share_resources(double now)
{
- surf_action_cpu_t action = NULL;
- xbt_swag_t running_actions= surf_cpu_resource->resource.states.running_action_set;
- xbt_maxmin_float_t min = -1;
- xbt_maxmin_float_t value = -1;
- lmm_solve(sys);
+ s_surf_action_cpu_Cas01_t action;
+ return generic_maxmin_share_resources2(surf_cpu_resource->common_public->
+ states.running_action_set,
+ xbt_swag_offset(action, variable),
+ cpu_maxmin_system, lmm_solve);
+}
- action = xbt_swag_getFirst(running_actions);
- if(!action) return 0.0;
- value = lmm_variable_getvalue(action->variable);
- min = action->generic_action.remains / value ;
+static void update_actions_state(double now, double delta)
+{
+ surf_action_cpu_Cas01_t action = NULL;
+ surf_action_cpu_Cas01_t next_action = NULL;
+ xbt_swag_t running_actions =
+ surf_cpu_resource->common_public->states.running_action_set;
+ /* FIXME: UNUSED
+ xbt_swag_t failed_actions =
+ surf_cpu_resource->common_public->states.failed_action_set;
+ */
- xbt_swag_foreach(action,running_actions) {
- value = action->generic_action.remains /
- lmm_variable_getvalue(action->variable);
- if(value<min) min=value;
+ xbt_swag_foreach_safe(action, next_action, running_actions) {
+ double_update(&(action->generic_action.remains),
+ lmm_variable_getvalue(action->variable) * delta);
+ if (action->generic_action.max_duration != NO_MAX_DURATION)
+ double_update(&(action->generic_action.max_duration), delta);
+ if ((action->generic_action.remains <= 0) &&
+ (lmm_get_variable_weight(action->variable) > 0)) {
+ action->generic_action.finish = surf_get_clock();
+ action_change_state((surf_action_t) action, SURF_ACTION_DONE);
+ } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
+ (action->generic_action.max_duration <= 0)) {
+ action->generic_action.finish = surf_get_clock();
+ action_change_state((surf_action_t) action, SURF_ACTION_DONE);
+ } else { /* Need to check that none of the resource has failed */
+ lmm_constraint_t cnst = NULL;
+ int i = 0;
+ cpu_Cas01_t cpu = NULL;
+
+ while ((cnst =
+ lmm_get_cnst_from_var(cpu_maxmin_system, action->variable,
+ i++))) {
+ cpu = lmm_constraint_id(cnst);
+ if (cpu->state_current == SURF_CPU_OFF) {
+ action->generic_action.finish = surf_get_clock();
+ action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
+ break;
+ }
+ }
+ }
}
- return min;
+ return;
}
-static void update_state(xbt_heap_float_t now,
- xbt_heap_float_t delta)
+static void update_resource_state(void *id,
+ tmgr_trace_event_t event_type,
+ double value)
{
- surf_action_cpu_t action = NULL;
- surf_action_cpu_t next_action = NULL;
- xbt_swag_t running_actions= surf_cpu_resource->resource.states.running_action_set;
-
- xbt_swag_foreach_safe(action, next_action, running_actions) {
- action->generic_action.remains -=
- lmm_variable_getvalue(action->variable)*delta;
-/* if(action->generic_action.remains<.00001) action->generic_action.remains=0; */
- if(action->generic_action.remains<=0) {
- action_change_state((surf_action_t)action, SURF_ACTION_DONE);
- } /* else if(host_failed..) */
+ cpu_Cas01_t cpu = id;
+
+ if (event_type == cpu->power_event) {
+ cpu->power_current = value;
+ lmm_update_constraint_bound(cpu_maxmin_system, cpu->constraint,
+ cpu->power_current * cpu->power_scale);
+ } else if (event_type == cpu->state_event) {
+ if (value > 0)
+ cpu->state_current = SURF_CPU_ON;
+ else
+ cpu->state_current = SURF_CPU_OFF;
+ } else {
+ CRITICAL0("Unknown event ! \n");
+ xbt_abort();
}
return;
}
-static surf_action_t execute(void *cpu, xbt_maxmin_float_t size)
+static surf_action_t execute(void *cpu, double size)
{
- lmm_variable_t var;
- surf_action_cpu_t action = NULL;
+ surf_action_cpu_Cas01_t action = NULL;
+ cpu_Cas01_t CPU = cpu;
+
+ XBT_IN2("(%s,%g)", CPU->name, size);
+ action = xbt_new0(s_surf_action_cpu_Cas01_t, 1);
+
+ action->generic_action.using = 1;
+ action->generic_action.cost = size;
+ action->generic_action.remains = size;
+ action->generic_action.priority = 1.0;
+ action->generic_action.max_duration = NO_MAX_DURATION;
+ action->generic_action.start = surf_get_clock();
+ action->generic_action.finish = -1.0;
+ action->generic_action.resource_type =
+ (surf_resource_t) surf_cpu_resource;
+ action->suspended = 0; /* Should be useless because of the
+ calloc but it seems to help valgrind... */
+
+ if (CPU->state_current == SURF_CPU_ON)
+ action->generic_action.state_set =
+ surf_cpu_resource->common_public->states.running_action_set;
+ else
+ action->generic_action.state_set =
+ surf_cpu_resource->common_public->states.failed_action_set;
+ xbt_swag_insert(action, action->generic_action.state_set);
+
+ action->variable = lmm_variable_new(cpu_maxmin_system, action,
+ action->generic_action.priority,
+ -1.0, 1);
+ lmm_expand(cpu_maxmin_system, CPU->constraint, action->variable, 1.0);
+ XBT_OUT;
+ return (surf_action_t) action;
+}
- action=xbt_new0(s_surf_action_cpu_t,1);
+static surf_action_t action_sleep(void *cpu, double duration)
+{
+ surf_action_cpu_Cas01_t action = NULL;
+
+ XBT_IN2("(%s,%g)", ((cpu_Cas01_t) cpu)->name, duration);
+ action = (surf_action_cpu_Cas01_t) execute(cpu, 1.0);
+ action->generic_action.max_duration = duration;
+ action->suspended = 2;
+ lmm_update_variable_weight(cpu_maxmin_system, action->variable, 0.0);
+ XBT_OUT;
+ return (surf_action_t) action;
+}
- action->generic_action.cost=size;
- action->generic_action.remains=size;
- action->generic_action.start=-1.0;
- action->generic_action.finish=-1.0;
- action->generic_action.callback=cpu;
- action->generic_action.resource_type=(surf_resource_t)surf_cpu_resource;
+static void action_suspend(surf_action_t action)
+{
+ XBT_IN1("(%p)", action);
+ if (((surf_action_cpu_Cas01_t) action)->suspended != 2) {
+ lmm_update_variable_weight(cpu_maxmin_system,
+ ((surf_action_cpu_Cas01_t) action)->
+ variable, 0.0);
+ ((surf_action_cpu_Cas01_t) action)->suspended = 1;
+ }
+ XBT_OUT;
+}
- action->generic_action.state_set=surf_cpu_resource->resource.states.running_action_set;
- xbt_swag_insert(action,action->generic_action.state_set);
+static void action_resume(surf_action_t action)
+{
+ XBT_IN1("(%p)", action);
+ if (((surf_action_cpu_Cas01_t) action)->suspended != 2) {
+ lmm_update_variable_weight(cpu_maxmin_system,
+ ((surf_action_cpu_Cas01_t) action)->
+ variable, action->priority);
+ ((surf_action_cpu_Cas01_t) action)->suspended = 0;
+ }
+ XBT_OUT;
+}
- action->variable = lmm_variable_new(sys, action, 1.0, -1.0, 1);
- lmm_expand(sys, ((cpu_t)cpu)->constraint, action->variable, 1.0);
+static int action_is_suspended(surf_action_t action)
+{
+ return (((surf_action_cpu_Cas01_t) action)->suspended == 1);
+}
- return (surf_action_t) action;
+static void action_set_max_duration(surf_action_t action, double duration)
+{
+ XBT_IN2("(%p,%g)", action, duration);
+ action->max_duration = duration;
+ XBT_OUT;
+}
+
+static void action_set_priority(surf_action_t action, double priority)
+{
+ XBT_IN2("(%p,%g)", action, priority);
+ action->priority = priority;
+ XBT_OUT;
}
static e_surf_cpu_state_t get_state(void *cpu)
{
- return SURF_CPU_OFF;
+ return ((cpu_Cas01_t) cpu)->state_current;
}
-static surf_cpu_resource_t surf_cpu_resource_init_internal(void)
+static double get_speed(void *cpu, double load)
+{
+ return load * (((cpu_Cas01_t) cpu)->power_scale);
+}
+
+static double get_available_speed(void *cpu)
+{
+ /* number between 0 and 1 */
+ return ((cpu_Cas01_t) cpu)->power_current;
+}
+
+static void finalize(void)
+{
+ xbt_dict_free(&cpu_set);
+ xbt_swag_free(surf_cpu_resource->common_public->states.ready_action_set);
+ xbt_swag_free(surf_cpu_resource->common_public->states.
+ running_action_set);
+ xbt_swag_free(surf_cpu_resource->common_public->states.
+ failed_action_set);
+ xbt_swag_free(surf_cpu_resource->common_public->states.done_action_set);
+ free(surf_cpu_resource->common_public);
+ free(surf_cpu_resource->common_private);
+ free(surf_cpu_resource->extension_public);
+
+ free(surf_cpu_resource);
+ surf_cpu_resource = NULL;
+}
+
+static void surf_cpu_resource_init_internal(void)
{
s_surf_action_t action;
- surf_cpu_resource = xbt_new0(s_surf_cpu_resource_t,1);
-
- surf_cpu_resource->resource.states.ready_action_set=
- xbt_swag_new(xbt_swag_offset(action,state_hookup));
- surf_cpu_resource->resource.states.running_action_set=
- xbt_swag_new(xbt_swag_offset(action,state_hookup));
- surf_cpu_resource->resource.states.failed_action_set=
- xbt_swag_new(xbt_swag_offset(action,state_hookup));
- surf_cpu_resource->resource.states.done_action_set=
- xbt_swag_new(xbt_swag_offset(action,state_hookup));
-
- surf_cpu_resource->resource.name_service = name_service;
- surf_cpu_resource->resource.get_resource_name = get_resource_name;
- surf_cpu_resource->resource.resource_used = resource_used;
- surf_cpu_resource->resource.action_get_state=surf_action_get_state;
- surf_cpu_resource->resource.action_free = action_free;
- surf_cpu_resource->resource.action_cancel = action_cancel;
- surf_cpu_resource->resource.action_recycle = action_recycle;
- surf_cpu_resource->resource.action_change_state = action_change_state;
- surf_cpu_resource->resource.share_resources = share_resources;
- surf_cpu_resource->resource.update_state = update_state;
-
- surf_cpu_resource->execute = execute;
- surf_cpu_resource->get_state = get_state;
+ surf_cpu_resource = xbt_new0(s_surf_cpu_resource_t, 1);
+
+ surf_cpu_resource->common_private =
+ xbt_new0(s_surf_resource_private_t, 1);
+ surf_cpu_resource->common_public = xbt_new0(s_surf_resource_public_t, 1);
+
+ surf_cpu_resource->extension_public =
+ xbt_new0(s_surf_cpu_resource_extension_public_t, 1);
+
+ surf_cpu_resource->common_public->states.ready_action_set =
+ xbt_swag_new(xbt_swag_offset(action, state_hookup));
+ surf_cpu_resource->common_public->states.running_action_set =
+ xbt_swag_new(xbt_swag_offset(action, state_hookup));
+ surf_cpu_resource->common_public->states.failed_action_set =
+ xbt_swag_new(xbt_swag_offset(action, state_hookup));
+ surf_cpu_resource->common_public->states.done_action_set =
+ xbt_swag_new(xbt_swag_offset(action, state_hookup));
+
+ surf_cpu_resource->common_public->name_service = name_service;
+ surf_cpu_resource->common_public->get_resource_name = get_resource_name;
+ surf_cpu_resource->common_public->action_get_state =
+ surf_action_get_state;
+ surf_cpu_resource->common_public->action_get_start_time =
+ surf_action_get_start_time;
+ surf_cpu_resource->common_public->action_get_finish_time =
+ surf_action_get_finish_time;
+ surf_cpu_resource->common_public->action_free = action_free;
+ surf_cpu_resource->common_public->action_use = action_use;
+ surf_cpu_resource->common_public->action_cancel = action_cancel;
+ surf_cpu_resource->common_public->action_recycle = action_recycle;
+ surf_cpu_resource->common_public->action_change_state =
+ action_change_state;
+ surf_cpu_resource->common_public->action_set_data = surf_action_set_data;
+ surf_cpu_resource->common_public->name = "CPU";
+
+ surf_cpu_resource->common_private->resource_used = resource_used;
+ surf_cpu_resource->common_private->share_resources = share_resources;
+ surf_cpu_resource->common_private->update_actions_state =
+ update_actions_state;
+ surf_cpu_resource->common_private->update_resource_state =
+ update_resource_state;
+ surf_cpu_resource->common_private->finalize = finalize;
+
+ surf_cpu_resource->common_public->suspend = action_suspend;
+ surf_cpu_resource->common_public->resume = action_resume;
+ surf_cpu_resource->common_public->is_suspended = action_is_suspended;
+ surf_cpu_resource->common_public->set_max_duration =
+ action_set_max_duration;
+ surf_cpu_resource->common_public->set_priority = action_set_priority;
+ surf_cpu_resource->extension_public->execute = execute;
+ surf_cpu_resource->extension_public->sleep = action_sleep;
+
+ surf_cpu_resource->extension_public->get_state = get_state;
+ surf_cpu_resource->extension_public->get_speed = get_speed;
+ surf_cpu_resource->extension_public->get_available_speed =
+ get_available_speed;
cpu_set = xbt_dict_new();
- sys = lmm_system_new();
-
- return surf_cpu_resource;
+ if (!cpu_maxmin_system)
+ cpu_maxmin_system = lmm_system_new();
}
-void surf_cpu_resource_init(const char* filename)
+/*********************************************************************/
+/* Basic sharing model for CPU: that is where all this started... ;) */
+/*********************************************************************/
+/* @InProceedings{casanova01simgrid, */
+/* author = "H. Casanova", */
+/* booktitle = "Proceedings of the IEEE Symposium on Cluster Computing */
+/* and the Grid (CCGrid'01)", */
+/* publisher = "IEEE Computer Society", */
+/* title = "Simgrid: {A} Toolkit for the Simulation of Application */
+/* Scheduling", */
+/* year = "2001", */
+/* month = may, */
+/* note = "Available at */
+/* \url{http://grail.sdsc.edu/papers/simgrid_ccgrid01.ps.gz}." */
+/* } */
+void surf_cpu_resource_init_Cas01(const char *filename)
{
- surf_resource_t CPU = NULL;
-
- surf_cpu_resource=surf_cpu_resource_init_internal();
+ if (surf_cpu_resource)
+ return;
+ surf_cpu_resource_init_internal();
parse_file(filename);
- CPU = &(surf_cpu_resource->resource); /* to make short */
- xbt_dynar_push(resource_list, &CPU);
+ xbt_dynar_push(resource_list, &surf_cpu_resource);
}
