+/* Copyright (c) 2006, 2007, 2008, 2009, 2010. 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 "private.h"
#include "simdag/simdag.h"
#include "xbt/dict.h"
#include "xbt/sysdep.h"
#include "surf/surf.h"
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(sd_workstation, sd,
+ "Logging specific to SimDag (workstation)");
+
/* Creates a workstation and registers it in SD.
*/
-SD_workstation_t __SD_workstation_create(void *surf_workstation, void *data) {
+SD_workstation_t __SD_workstation_create(void *surf_workstation, void *data)
+{
+
+ SD_workstation_t workstation;
+ const char *name;
SD_CHECK_INIT_DONE();
xbt_assert0(surf_workstation != NULL, "surf_workstation is NULL !");
- SD_workstation_t workstation = xbt_new0(s_SD_workstation_t, 1);
+ workstation = xbt_new(s_SD_workstation_t, 1);
workstation->surf_workstation = surf_workstation;
- workstation->data = data; /* user data */
- SD_workstation_set_access_mode(workstation, SD_WORKSTATION_SHARED_ACCESS); /* default mode is shared */
+ workstation->data = data; /* user data */
+ workstation->access_mode = SD_WORKSTATION_SHARED_ACCESS; /* default mode is shared */
workstation->task_fifo = NULL;
-
- const char *name = SD_workstation_get_name(workstation);
- xbt_dict_set(sd_global->workstations, name, workstation, __SD_workstation_destroy); /* add the workstation to the dictionary */
+ workstation->current_task = NULL;
+
+ name = SD_workstation_get_name(workstation);
+ xbt_dict_set(sd_global->workstations, name, workstation, __SD_workstation_destroy); /* add the workstation to the dictionary */
sd_global->workstation_count++;
return workstation;
* \param name workstation name
* \return the workstation, or \c NULL if there is no such workstation
*/
-SD_workstation_t SD_workstation_get_by_name(const char *name) {
+SD_workstation_t SD_workstation_get_by_name(const char *name)
+{
SD_CHECK_INIT_DONE();
xbt_assert0(name != NULL, "Invalid parameter");
* \return an array of \ref SD_workstation_t containing all workstations
* \see SD_workstation_get_number()
*/
-const SD_workstation_t* SD_workstation_get_list(void) {
- SD_CHECK_INIT_DONE();
- xbt_assert0(SD_workstation_get_number() > 0, "There is no workstation!");
+const SD_workstation_t *SD_workstation_get_list(void)
+{
xbt_dict_cursor_t cursor;
char *key;
void *data;
int i;
- if (sd_global->workstation_list == NULL) { /* this is the first time the function is called */
- sd_global->workstation_list = xbt_new0(SD_workstation_t, sd_global->workstation_count);
-
+ SD_CHECK_INIT_DONE();
+ xbt_assert0(SD_workstation_get_number() > 0, "There is no workstation!");
+
+
+
+ if (sd_global->workstation_list == NULL) { /* this is the first time the function is called */
+ sd_global->workstation_list =
+ xbt_new(SD_workstation_t, sd_global->workstation_count);
+
i = 0;
xbt_dict_foreach(sd_global->workstations, cursor, key, data) {
sd_global->workstation_list[i++] = (SD_workstation_t) data;
* \return the number of existing workstations
* \see SD_workstation_get_list()
*/
-int SD_workstation_get_number(void) {
+int SD_workstation_get_number(void)
+{
SD_CHECK_INIT_DONE();
return sd_global->workstation_count;
}
* \return the user data associated with this workstation (can be \c NULL)
* \see SD_workstation_set_data()
*/
-void* SD_workstation_get_data(SD_workstation_t workstation) {
+void *SD_workstation_get_data(SD_workstation_t workstation)
+{
SD_CHECK_INIT_DONE();
xbt_assert0(workstation != NULL, "Invalid parameter");
return workstation->data;
* \param data the new data you want to associate with this workstation
* \see SD_workstation_get_data()
*/
-void SD_workstation_set_data(SD_workstation_t workstation, void *data) {
+void SD_workstation_set_data(SD_workstation_t workstation, void *data)
+{
SD_CHECK_INIT_DONE();
xbt_assert0(workstation != NULL, "Invalid parameter");
workstation->data = data;
* \param workstation a workstation
* \return the name of this workstation (cannot be \c NULL)
*/
-const char* SD_workstation_get_name(SD_workstation_t workstation) {
+const char *SD_workstation_get_name(SD_workstation_t workstation)
+{
SD_CHECK_INIT_DONE();
xbt_assert0(workstation != NULL, "Invalid parameter");
- return surf_workstation_resource->common_public->get_resource_name(workstation->surf_workstation);
+ return surf_resource_name(workstation->surf_workstation);
+}
+
+/**
+ * \brief Returns the value of a given workstation property
+ *
+ * \param ws a workstation
+ * \param name a property name
+ * \return value of a property (or NULL if property not set)
+ */
+const char *SD_workstation_get_property_value(SD_workstation_t ws,
+ const char *name)
+{
+ return xbt_dict_get_or_null(SD_workstation_get_properties(ws), name);
}
+
+/**
+ * \brief Returns a #xbt_dict_t consisting of the list of properties assigned to this workstation
+ *
+ * \param workstation a workstation
+ * \return the dictionary containing the properties associated with the workstation
+ */
+xbt_dict_t SD_workstation_get_properties(SD_workstation_t workstation)
+{
+ SD_CHECK_INIT_DONE();
+ xbt_assert0((workstation != NULL), "Invalid parameters");
+
+ return surf_workstation_model->extension.workstation.get_properties(workstation->surf_workstation);
+
+}
+
+
/**
* \brief Returns the route between two workstations
*
- * Use SD_route_get_size() to know the array size. Don't forget to free the array after use.
+ * Use SD_route_get_size() to know the array size.
*
* \param src a workstation
* \param dst another workstation
* \return a new array of \ref SD_link_t representating the route between these two workstations
* \see SD_route_get_size(), SD_link_t
*/
-SD_link_t* SD_route_get_list(SD_workstation_t src, SD_workstation_t dst) {
+const SD_link_t *SD_route_get_list(SD_workstation_t src, SD_workstation_t dst)
+{
+ void *surf_src;
+ void *surf_dst;
+ xbt_dynar_t surf_route;
+ const char *link_name;
+ void *surf_link;
+ unsigned int cpt;
+
SD_CHECK_INIT_DONE();
- void *surf_src = src->surf_workstation;
- void *surf_dst = dst->surf_workstation;
+ if (sd_global->recyclable_route == NULL) {
+ /* first run */
+ sd_global->recyclable_route = xbt_new(SD_link_t, SD_link_get_number());
+ }
- const void **surf_route = surf_workstation_resource->extension_public->get_route(surf_src, surf_dst);
- int route_size = surf_workstation_resource->extension_public->get_route_size(surf_src, surf_dst);
+ surf_src = src->surf_workstation;
+ surf_dst = dst->surf_workstation;
- SD_link_t* route = xbt_new0(SD_link_t, route_size);
- const char *link_name;
- int i;
- for (i = 0; i < route_size; i++) {
- link_name = surf_workstation_resource->extension_public->get_link_name(surf_route[i]);
- route[i] = xbt_dict_get(sd_global->links, link_name);
+ surf_route =
+ surf_workstation_model->extension.workstation.get_route(surf_src,
+ surf_dst);
+
+ xbt_dynar_foreach(surf_route, cpt, surf_link) {
+ link_name = surf_resource_name(surf_link);
+ sd_global->recyclable_route[cpt] =
+ xbt_dict_get(sd_global->links, link_name);
}
- return route;
+ return sd_global->recyclable_route;
}
/**
* \return the number of links on the route between these two workstations
* \see SD_route_get_list()
*/
-int SD_route_get_size(SD_workstation_t src, SD_workstation_t dst) {
+int SD_route_get_size(SD_workstation_t src, SD_workstation_t dst)
+{
SD_CHECK_INIT_DONE();
- return surf_workstation_resource->extension_public->
- get_route_size(src->surf_workstation, dst->surf_workstation);
+ return xbt_dynar_length(surf_workstation_model->extension.workstation.get_route(
+ src->surf_workstation,dst->surf_workstation));
}
/**
* \return the total power of this workstation
* \see SD_workstation_get_available_power()
*/
-double SD_workstation_get_power(SD_workstation_t workstation) {
+double SD_workstation_get_power(SD_workstation_t workstation)
+{
SD_CHECK_INIT_DONE();
xbt_assert0(workstation != NULL, "Invalid parameter");
- return surf_workstation_resource->extension_public->get_speed(workstation->surf_workstation, 1.0);
+ return surf_workstation_model->extension.workstation.
+ get_speed(workstation->surf_workstation, 1.0);
}
/**
* \return the proportion of power currently available in this workstation (normally a number between 0 and 1)
* \see SD_workstation_get_power()
*/
-double SD_workstation_get_available_power(SD_workstation_t workstation) {
+double SD_workstation_get_available_power(SD_workstation_t workstation)
+{
SD_CHECK_INIT_DONE();
xbt_assert0(workstation != NULL, "Invalid parameter");
- return surf_workstation_resource->extension_public->get_available_speed(workstation->surf_workstation);
+ return surf_workstation_model->extension.
+ workstation.get_available_speed(workstation->surf_workstation);
}
/**
* \param computation_amount the computation amount you want to evaluate (in flops)
* \return an approximative astimated computation time for the given computation amount on this workstation (in seconds)
*/
-double SD_workstation_get_computation_time(SD_workstation_t workstation, double computation_amount) {
+double SD_workstation_get_computation_time(SD_workstation_t workstation,
+ double computation_amount)
+{
SD_CHECK_INIT_DONE();
xbt_assert0(workstation != NULL, "Invalid parameter");
- xbt_assert0(computation_amount >= 0, "computation_amount must be greater than or equal to zero");
+ xbt_assert0(computation_amount >= 0,
+ "computation_amount must be greater than or equal to zero");
return computation_amount / SD_workstation_get_power(workstation);
}
* \return the latency of the route between the two workstations (in seconds)
* \see SD_route_get_current_bandwidth()
*/
-double SD_route_get_current_latency(SD_workstation_t src, SD_workstation_t dst) {
+double SD_route_get_current_latency(SD_workstation_t src,
+ SD_workstation_t dst)
+{
+
+ const SD_link_t *links;
+ int nb_links;
+ double latency;
+ int i;
+
SD_CHECK_INIT_DONE();
xbt_assert0(src != NULL && dst != NULL, "Invalid parameter");
- SD_link_t *links = SD_route_get_list(src, dst);
- int nb_links = SD_route_get_size(src, dst);
- double latency = 0.0;
- int i;
-
+ links = SD_route_get_list(src, dst);
+ nb_links = SD_route_get_size(src, dst);
+ latency = 0.0;
+
for (i = 0; i < nb_links; i++) {
latency += SD_link_get_current_latency(links[i]);
}
- free(links);
return latency;
}
* \return the bandwidth of the route between the two workstations (in bytes/second)
* \see SD_route_get_current_latency()
*/
-double SD_route_get_current_bandwidth(SD_workstation_t src, SD_workstation_t dst) {
+double SD_route_get_current_bandwidth(SD_workstation_t src,
+ SD_workstation_t dst)
+{
+
+ const SD_link_t *links;
+ int nb_links;
+ double bandwidth;
+ double min_bandwidth;
+ int i;
+
SD_CHECK_INIT_DONE();
xbt_assert0(src != NULL && dst != NULL, "Invalid parameter");
- SD_link_t *links = SD_route_get_list(src, dst);
- int nb_links = SD_route_get_size(src, dst);
- double bandwidth, min_bandwidth = -1.0;
- int i;
-
+
+ links = SD_route_get_list(src, dst);
+ nb_links = SD_route_get_size(src, dst);
+ bandwidth = min_bandwidth = -1.0;
+
+
for (i = 0; i < nb_links; i++) {
bandwidth = SD_link_get_current_bandwidth(links[i]);
if (bandwidth < min_bandwidth || min_bandwidth == -1.0)
min_bandwidth = bandwidth;
}
- free(links);
return min_bandwidth;
}
* \return an approximative astimated computation time for the given communication amount
* between the workstations (in seconds)
*/
-double SD_route_get_communication_time(SD_workstation_t src, SD_workstation_t dst,
- double communication_amount) {
+double SD_route_get_communication_time(SD_workstation_t src,
+ SD_workstation_t dst,
+ double communication_amount)
+{
+
+
/* total time = latency + transmission time of the slowest link
transmission time of a link = communication amount / link bandwidth */
- SD_CHECK_INIT_DONE();
- xbt_assert0(src != NULL && dst != NULL, "Invalid parameter");
- xbt_assert0(communication_amount >= 0, "communication_amount must be greater than or equal to zero");
- SD_link_t *links;
+ const SD_link_t *links;
int nb_links;
double bandwidth, min_bandwidth;
double latency;
int i;
-
+
+ SD_CHECK_INIT_DONE();
+ xbt_assert0(src != NULL && dst != NULL, "Invalid parameter");
+ xbt_assert0(communication_amount >= 0,
+ "communication_amount must be greater than or equal to zero");
+
+
+
if (communication_amount == 0.0)
return 0.0;
if (bandwidth < min_bandwidth || min_bandwidth == -1.0)
min_bandwidth = bandwidth;
}
- xbt_free(links);
return latency + (communication_amount / min_bandwidth);
}
*
* \see SD_workstation_set_access_mode(), e_SD_workstation_access_mode_t
*/
- e_SD_workstation_access_mode_t SD_workstation_get_access_mode(SD_workstation_t workstation) {
+e_SD_workstation_access_mode_t SD_workstation_get_access_mode(SD_workstation_t
+ workstation)
+{
SD_CHECK_INIT_DONE();
xbt_assert0(workstation != NULL, "Invalid parameter");
return workstation->access_mode;
/**
* \brief Sets the access mode for the tasks that will be executed on a workstation
*
- * By default, a workstation resource is shared, i.e. several tasks
+ * By default, a workstation model is shared, i.e. several tasks
* can be executed at the same time on a workstation. The CPU power of
* the workstation is shared between the running tasks on the workstation.
* In sequential mode, only one task can use the workstation, and the other
*
* \see SD_workstation_get_access_mode(), e_SD_workstation_access_mode_t
*/
-void SD_workstation_set_access_mode(SD_workstation_t workstation, e_SD_workstation_access_mode_t access_mode) {
+void SD_workstation_set_access_mode(SD_workstation_t workstation,
+ e_SD_workstation_access_mode_t
+ access_mode)
+{
SD_CHECK_INIT_DONE();
xbt_assert0(workstation != NULL, "Invalid parameter");
if (access_mode == workstation->access_mode) {
- return; // nothing is changed
+ return; // nothing is changed
}
workstation->access_mode = access_mode;
if (access_mode == SD_WORKSTATION_SHARED_ACCESS) {
xbt_fifo_free(workstation->task_fifo);
workstation->task_fifo = NULL;
- }
- else {
+ } else {
workstation->task_fifo = xbt_fifo_new();
}
}
/* Returns whether a task can start now on a workstation.
- *//*
-int __SD_workstation_can_start(SD_workstation_t workstation, SD_task_t task) {
- SD_CHECK_INIT_DONE();
- xbt_assert0(workstation != NULL && task != NULL, "Invalid parameter");
+ *//*
+ int __SD_workstation_can_start(SD_workstation_t workstation, SD_task_t task) {
+ SD_CHECK_INIT_DONE();
+ xbt_assert0(workstation != NULL && task != NULL, "Invalid parameter");
- return !__SD_workstation_is_busy(workstation) &&
- (xbt_fifo_size(workstation->task_fifo) == 0) || xbt_fifo_get_first_item(workstation->task_fifo) == task);
-}
-*/
+ return !__SD_workstation_is_busy(workstation) &&
+ (xbt_fifo_size(workstation->task_fifo) == 0) || xbt_fifo_get_first_item(workstation->task_fifo) == task);
+ }
+ */
/* Returns whether a workstation is busy. A workstation is busy is it is
* in sequential mode and a task is running on it or the fifo is not empty.
*/
-int __SD_workstation_is_busy(SD_workstation_t workstation) {
+int __SD_workstation_is_busy(SD_workstation_t workstation)
+{
SD_CHECK_INIT_DONE();
xbt_assert0(workstation != NULL, "Invalid parameter");
-
+
+ DEBUG4
+ ("Workstation '%s' access mode: '%s', current task: %s, fifo size: %d",
+ SD_workstation_get_name(workstation),
+ (workstation->access_mode ==
+ SD_WORKSTATION_SHARED_ACCESS) ? "SHARED" : "FIFO",
+ (workstation->current_task ? SD_task_get_name(workstation->current_task)
+ : "none"),
+ (workstation->task_fifo ? xbt_fifo_size(workstation->task_fifo) : 0));
+
return workstation->access_mode == SD_WORKSTATION_SEQUENTIAL_ACCESS &&
- (workstation->current_task != NULL || xbt_fifo_size(workstation->task_fifo) > 0);
+ (workstation->current_task != NULL
+ || xbt_fifo_size(workstation->task_fifo) > 0);
}
/* Destroys a workstation.
*/
-void __SD_workstation_destroy(void *workstation) {
+void __SD_workstation_destroy(void *workstation)
+{
+
+ SD_workstation_t w;
+
SD_CHECK_INIT_DONE();
xbt_assert0(workstation != NULL, "Invalid parameter");
/* workstation->surf_workstation is freed by surf_exit and workstation->data is freed by the user */
- SD_workstation_t w = (SD_workstation_t) workstation;
+ w = (SD_workstation_t) workstation;
if (w->access_mode == SD_WORKSTATION_SEQUENTIAL_ACCESS) {
xbt_fifo_free(w->task_fifo);
}
xbt_free(w);
}
+
+/**
+ * \brief Returns the kind of the task currently running on a workstation
+ * Only call this with sequential access mode set
+ * \param workstation a workstation */
+SD_task_t SD_workstation_get_current_task(SD_workstation_t workstation)
+{
+ SD_CHECK_INIT_DONE();
+ xbt_assert0(workstation != NULL, "Invalid parameter");
+ xbt_assert0(workstation->access_mode == SD_WORKSTATION_SEQUENTIAL_ACCESS,
+ "Access mode must be set to SD_WORKSTATION_SEQUENTIAL_ACCESS"
+ " to use this function");
+
+ return (workstation->current_task);
+}
