-#include "surf.hpp"
-#include "workstation.hpp"
-#include "network.hpp"
-#include "instr/instr_private.h"
-
-XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_kernel);
+/* Copyright (c) 2004-2015. 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 "src/portable.h"
+#include "surf_private.h"
+#include "surf_interface.hpp"
+#include "network_interface.hpp"
+#include "cpu_interface.hpp"
+#include "src/surf/HostImpl.hpp"
+#include "src/simix/smx_host_private.h"
+#include "surf_routing.hpp"
+#include "simgrid/sg_config.h"
+#include "mc/mc.h"
+#include "virtual_machine.hpp"
+#include "src/instr/instr_private.h" // TRACE_is_enabled(). FIXME: remove by subscribing tracing to the surf signals
+
+XBT_LOG_NEW_CATEGORY(surf, "All SURF categories");
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_kernel, surf, "Logging specific to SURF (kernel)");
/*********
- * TOOLS *
+ * Utils *
*********/
-extern double NOW;
-char *surf_routing_edge_name(sg_routing_edge_t edge){
- return edge->p_name;
+/* model_list_invoke contains only surf_host and surf_vm.
+ * The callback functions of cpu_model and network_model will be called from those of these host models. */
+xbt_dynar_t all_existing_models = NULL; /* to destroy models correctly */
+xbt_dynar_t model_list_invoke = NULL; /* to invoke callbacks */
+
+simgrid::trace_mgr::future_evt_set *future_evt_set = nullptr;
+xbt_dynar_t surf_path = NULL;
+xbt_dynar_t host_that_restart = xbt_dynar_new(sizeof(char*), NULL);
+xbt_dict_t watched_hosts_lib;
+
+namespace simgrid {
+namespace surf {
+
+simgrid::xbt::signal<void(void)> surfExitCallbacks;
+
+}
}
-#ifdef CONTEXT_THREADS
+#include <simgrid/plugins/energy.h> // FIXME: this plugin should not be linked to the core
+
+s_surf_model_description_t surf_plugin_description[] = {
+ {"Energy", "Cpu energy consumption.", sg_energy_plugin_init},
+ {NULL, NULL, NULL} /* this array must be NULL terminated */
+};
+
+/* Don't forget to update the option description in smx_config when you change this */
+s_surf_model_description_t surf_network_model_description[] = {
+ {"LV08", "Realistic network analytic model (slow-start modeled by multiplying latency by 10.4, bandwidth by .92; bottleneck sharing uses a payload of S=8775 for evaluating RTT). ",
+ surf_network_model_init_LegrandVelho},
+ {"Constant",
+ "Simplistic network model where all communication take a constant time (one second). This model provides the lowest realism, but is (marginally) faster.",
+ surf_network_model_init_Constant},
+ {"SMPI", "Realistic network model specifically tailored for HPC settings (accurate modeling of slow start with correction factors on three intervals: < 1KiB, < 64 KiB, >= 64 KiB)",
+ surf_network_model_init_SMPI},
+ {"IB", "Realistic network model specifically tailored for HPC settings, with Infiniband contention model",
+ surf_network_model_init_IB},
+ {"CM02", "Legacy network analytic model (Very similar to LV08, but without corrective factors. The timings of small messages are thus poorly modeled).",
+ surf_network_model_init_CM02},
+#ifdef HAVE_NS3
+ {"NS3", "Network pseudo-model using the NS3 tcp model instead of an analytic model", surf_network_model_init_NS3},
+#endif
+ {"Reno", "Model from Steven H. Low using lagrange_solve instead of lmm_solve (experts only; check the code for more info).",
+ surf_network_model_init_Reno},
+ {"Reno2", "Model from Steven H. Low using lagrange_solve instead of lmm_solve (experts only; check the code for more info).",
+ surf_network_model_init_Reno2},
+ {"Vegas", "Model from Steven H. Low using lagrange_solve instead of lmm_solve (experts only; check the code for more info).",
+ surf_network_model_init_Vegas},
+ {NULL, NULL, NULL} /* this array must be NULL terminated */
+};
+
+s_surf_model_description_t surf_cpu_model_description[] = {
+ {"Cas01", "Simplistic CPU model (time=size/power).", surf_cpu_model_init_Cas01},
+ {NULL, NULL, NULL} /* this array must be NULL terminated */
+};
+
+s_surf_model_description_t surf_host_model_description[] = {
+ {"default", "Default host model. Currently, CPU:Cas01 and network:LV08 (with cross traffic enabled)", surf_host_model_init_current_default},
+ {"compound", "Host model that is automatically chosen if you change the network and CPU models", surf_host_model_init_compound},
+ {"ptask_L07", "Host model somehow similar to Cas01+CM02 but allowing parallel tasks", surf_host_model_init_ptask_L07},
+ {NULL, NULL, NULL} /* this array must be NULL terminated */
+};
+
+s_surf_model_description_t surf_vm_model_description[] = {
+ {"default", "Default vm model.", surf_vm_model_init_HL13},
+ {NULL, NULL, NULL} /* this array must be NULL terminated */
+};
+
+s_surf_model_description_t surf_optimization_mode_description[] = {
+ {"Lazy", "Lazy action management (partial invalidation in lmm + heap in action remaining).", NULL},
+ {"TI", "Trace integration. Highly optimized mode when using availability traces (only available for the Cas01 CPU model for now).", NULL},
+ {"Full", "Full update of remaining and variables. Slow but may be useful when debugging.", NULL},
+ {NULL, NULL, NULL} /* this array must be NULL terminated */
+};
+
+s_surf_model_description_t surf_storage_model_description[] = {
+ {"default", "Simplistic storage model.", surf_storage_model_init_default},
+ {NULL, NULL, NULL} /* this array must be NULL terminated */
+};
+
+#ifdef HAVE_THREAD_CONTEXTS
static xbt_parmap_t surf_parmap = NULL; /* parallel map on models */
#endif
-static double *surf_mins = NULL; /* return value of share_resources for each model */
-static int surf_min_index; /* current index in surf_mins */
-static double surf_min; /* duration determined by surf_solve */
+double NOW = 0;
-void surf_presolve(void)
+double surf_get_clock(void)
{
- double next_event_date = -1.0;
- tmgr_trace_event_t event = NULL;
- double value = -1.0;
- surf_resource_t resource = NULL;
- surf_model_t model = NULL;
- unsigned int iter;
+ return NOW;
+}
- XBT_DEBUG
- ("First Run! Let's \"purge\" events and put models in the right state");
- while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
- if (next_event_date > NOW)
- break;
- while ((event =
- tmgr_history_get_next_event_leq(history, next_event_date,
- &value,
- (void **) &resource))) {
- if (value >= 0){
- resource->updateState(event, value, NOW);
- }
- }
+#ifdef _XBT_WIN32
+# define FILE_DELIM "\\"
+#else
+# define FILE_DELIM "/" /* FIXME: move to better location */
+#endif
+
+FILE *surf_fopen(const char *name, const char *mode)
+{
+ unsigned int cpt;
+ char *path_elm = NULL;
+ char *buff;
+ FILE *file = NULL;
+
+ xbt_assert(name);
+
+ if (__surf_is_absolute_file_path(name)) /* don't mess with absolute file names */
+ return fopen(name, mode);
+
+ /* search relative files in the path */
+ xbt_dynar_foreach(surf_path, cpt, path_elm) {
+ buff = bprintf("%s" FILE_DELIM "%s", path_elm, name);
+ file = fopen(buff, mode);
+ free(buff);
+
+ if (file)
+ return file;
}
- xbt_dynar_foreach(model_list, iter, model)
- model->updateActionsState(NOW, 0.0);
+ return NULL;
}
-static void surf_share_resources(surf_model_t model)
+#ifdef _XBT_WIN32
+#include <windows.h>
+#define MAX_DRIVE 26
+static const char *disk_drives_letter_table[MAX_DRIVE] = {
+ "A:\\","B:\\","C:\\","D:\\","E:\\","F:\\","G:\\","H:\\","I:\\","J:\\","K:\\","L:\\","M:\\",
+ "N:\\","O:\\","P:\\","Q:\\","R:\\","S:\\","T:\\","U:\\","V:\\","W:\\","X:\\","Y:\\","Z:\\"
+};
+#endif
+
+/*
+ * Returns the initial path. On Windows the initial path is
+ * the current directory for the current process in the other
+ * case the function returns "./" that represents the current
+ * directory on Unix/Linux platforms.
+ */
+
+const char *__surf_get_initial_path(void)
{
- double next_action_end = -1.0;
- int i = __sync_fetch_and_add(&surf_min_index, 1);
- if (strcmp(model->m_name.c_str(), "network NS3")) {
- XBT_DEBUG("Running for Resource [%s]", model->m_name.c_str());
- next_action_end = model->shareResources(NOW);
- XBT_DEBUG("Resource [%s] : next action end = %f",
- model->m_name.c_str(), next_action_end);
+
+#ifdef _XBT_WIN32
+ unsigned i;
+ char current_directory[MAX_PATH + 1] = { 0 };
+ unsigned int len = GetCurrentDirectory(MAX_PATH + 1, current_directory);
+ char root[4] = { 0 };
+
+ if (!len)
+ return NULL;
+
+ strncpy(root, current_directory, 3);
+
+ for (i = 0; i < MAX_DRIVE; i++) {
+ if (toupper(root[0]) == disk_drives_letter_table[i][0])
+ return disk_drives_letter_table[i];
}
- surf_mins[i] = next_action_end;
+
+ return NULL;
+#else
+ return "./";
+#endif
}
-static void surf_update_actions_state(surf_model_t model)
+/* The __surf_is_absolute_file_path() returns 1 if
+ * file_path is a absolute file path, in the other
+ * case the function returns 0.
+ */
+int __surf_is_absolute_file_path(const char *file_path)
{
- model->updateActionsState(NOW, surf_min);
+#ifdef _XBT_WIN32
+ WIN32_FIND_DATA wfd = { 0 };
+ HANDLE hFile = FindFirstFile(file_path, &wfd);
+
+ if (INVALID_HANDLE_VALUE == hFile)
+ return 0;
+
+ FindClose(hFile);
+ return 1;
+#else
+ return (file_path[0] == '/');
+#endif
}
-double surf_solve(double max_date)
+/** Displays the long description of all registered models, and quit */
+void model_help(const char *category, s_surf_model_description_t * table)
{
- surf_min = -1.0; /* duration */
- double next_event_date = -1.0;
- double model_next_action_end = -1.0;
- double value = -1.0;
- surf_resource_t resource = NULL;
- surf_model_t model = NULL;
- tmgr_trace_event_t event = NULL;
- unsigned int iter;
-
- if (max_date != -1.0 && max_date != NOW) {
- surf_min = max_date - NOW;
- }
+ printf("Long description of the %s models accepted by this simulator:\n", category);
+ for (int i = 0; table[i].name; i++)
+ printf(" %s: %s\n", table[i].name, table[i].description);
+}
- XBT_DEBUG("Looking for next action end for all models except NS3");
+int find_model_description(s_surf_model_description_t * table,
+ const char *name)
+{
+ int i;
+ char *name_list = NULL;
- if (surf_mins == NULL) {
- surf_mins = xbt_new(double, xbt_dynar_length(model_list));
+ for (i = 0; table[i].name; i++)
+ if (!strcmp(name, table[i].name)) {
+ return i;
+ }
+ if (!table[0].name)
+ xbt_die("No model is valid! This is a bug.");
+ name_list = xbt_strdup(table[0].name);
+ for (i = 1; table[i].name; i++) {
+ name_list = (char *) xbt_realloc(name_list, strlen(name_list) + strlen(table[i].name) + 3);
+ strcat(name_list, ", ");
+ strcat(name_list, table[i].name);
}
- surf_min_index = 0;
+ xbt_die("Model '%s' is invalid! Valid models are: %s.", name, name_list);
+ return -1;
+}
- /* sequential version */
- xbt_dynar_foreach(model_list, iter, model) {
- surf_share_resources(static_cast<ModelPtr>(model));
- }
+static XBT_INLINE void surf_storage_free(void *r)
+{
+ delete static_cast<simgrid::surf::Storage*>(r);
+}
- unsigned i;
- for (i = 0; i < xbt_dynar_length(model_list); i++) {
- if ((surf_min < 0.0 || surf_mins[i] < surf_min)
- && surf_mins[i] >= 0.0) {
- surf_min = surf_mins[i];
+void sg_version_check(int lib_version_major,int lib_version_minor,int lib_version_patch) {
+ if ((lib_version_major != SIMGRID_VERSION_MAJOR) || (lib_version_minor != SIMGRID_VERSION_MINOR)) {
+ fprintf(stderr,
+ "FATAL ERROR: Your program was compiled with SimGrid version %d.%d.%d, "
+ "and then linked against SimGrid %d.%d.%d. Please fix this.\n",
+ SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH,
+ lib_version_major,lib_version_minor,lib_version_patch);
+ abort();
}
- }
+ if (lib_version_patch != SIMGRID_VERSION_PATCH) {
+ fprintf(stderr,
+ "Warning: Your program was compiled with SimGrid version %d.%d.%d, "
+ "and then linked against SimGrid %d.%d.%d. Proceeding anyway.\n",
+ SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH,
+ lib_version_major,lib_version_minor,lib_version_patch);
+ }
+}
- XBT_DEBUG("Min for resources (remember that NS3 don't update that value) : %f", surf_min);
+void sg_version(int *ver_major,int *ver_minor,int *ver_patch) {
+ *ver_major = SIMGRID_VERSION_MAJOR;
+ *ver_minor = SIMGRID_VERSION_MINOR;
+ *ver_patch = SIMGRID_VERSION_PATCH;
+}
- XBT_DEBUG("Looking for next trace event");
+void surf_init(int *argc, char **argv)
+{
+ XBT_DEBUG("Create all Libs");
+ host_list = xbt_dict_new_homogeneous([](void*p) {
+ simgrid::s4u::Host* host = static_cast<simgrid::s4u::Host*>(p);
+ simgrid::s4u::Host::onDestruction(*host);
+ delete host;
+ });
+ USER_HOST_LEVEL = simgrid::s4u::Host::extension_create(NULL);
- do {
- XBT_DEBUG("Next TRACE event : %f", next_event_date);
+ as_router_lib = xbt_lib_new();
+ storage_lib = xbt_lib_new();
+ storage_type_lib = xbt_lib_new();
+ file_lib = xbt_lib_new();
+ watched_hosts_lib = xbt_dict_new_homogeneous(NULL);
- next_event_date = tmgr_history_next_date(history);
- if(!strcmp(surf_network_model->m_name.c_str(), "network NS3")){//FIXME: add surf_network_model->m_name &&
- if(next_event_date!=-1.0 && surf_min!=-1.0) {
- surf_min = MIN(next_event_date - NOW, surf_min);
- } else{
- surf_min = MAX(next_event_date - NOW, surf_min);
- }
+ XBT_DEBUG("Add routing levels");
+ ROUTING_PROP_ASR_LEVEL = xbt_lib_add_level(as_router_lib, NULL);
- XBT_DEBUG("Run for network at most %f", surf_min);
- // run until min or next flow
- model_next_action_end = surf_network_model->shareResources(surf_min);
+ XBT_DEBUG("Add SURF levels");
+ simgrid::surf::HostImpl::classInit();
+ SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,surf_storage_free);
- XBT_DEBUG("Min for network : %f", model_next_action_end);
- if(model_next_action_end>=0.0)
- surf_min = model_next_action_end;
- }
+ xbt_init(argc, argv);
+ if (!all_existing_models)
+ all_existing_models = xbt_dynar_new(sizeof(simgrid::surf::Model*), NULL);
+ if (!model_list_invoke)
+ model_list_invoke = xbt_dynar_new(sizeof(simgrid::surf::Model*), NULL);
+ if (!future_evt_set)
+ future_evt_set = new simgrid::trace_mgr::future_evt_set();
- if (next_event_date < 0.0) {
- XBT_DEBUG("no next TRACE event. Stop searching for it");
- break;
- }
+ TRACE_add_start_function(TRACE_surf_alloc);
+ TRACE_add_end_function(TRACE_surf_release);
- if ((surf_min == -1.0) || (next_event_date > NOW + surf_min)) break;
-
- XBT_DEBUG("Updating models (min = %g, NOW = %g, next_event_date = %g)", surf_min, NOW, next_event_date);
- while ((event =
- tmgr_history_get_next_event_leq(history, next_event_date,
- &value,
- (void **) &resource))) {
- if (resource->isUsed()) {
- surf_min = next_event_date - NOW;
- XBT_DEBUG
- ("This event will modify model state. Next event set to %f",
- surf_min);
- }
- /* update state of model_obj according to new value. Does not touch lmm.
- It will be modified if needed when updating actions */
- XBT_DEBUG("Calling update_resource_state for resource %s with min %lf",
- resource->p_model->m_name.c_str(), surf_min);
- resource->updateState(event, value, next_event_date);
- }
- } while (1);
+ sg_config_init(argc, argv);
- /* FIXME: Moved this test to here to avoid stopping simulation if there are actions running on cpus and all cpus are with availability = 0.
- * This may cause an infinite loop if one cpu has a trace with periodicity = 0 and the other a trace with periodicity > 0.
- * The options are: all traces with same periodicity(0 or >0) or we need to change the way how the events are managed */
- if (surf_min == -1.0) {
- XBT_DEBUG("No next event at all. Bail out now.");
- return -1.0;
- }
+ if (MC_is_active())
+ MC_memory_init();
+}
+
+void surf_exit(void)
+{
+ unsigned int iter;
+ simgrid::surf::Model *model = NULL;
+
+ TRACE_end(); /* Just in case it was not called by the upper
+ * layer (or there is no upper layer) */
+
+ sg_config_finalize();
+
+ xbt_dynar_free(&host_that_restart);
+ xbt_dynar_free(&surf_path);
+
+ xbt_dict_free(&host_list);
+ xbt_lib_free(&as_router_lib);
+ xbt_lib_free(&storage_lib);
+ sg_link_exit();
+ xbt_lib_free(&storage_type_lib);
+ xbt_lib_free(&file_lib);
+ xbt_dict_free(&watched_hosts_lib);
- XBT_DEBUG("Duration set to %f", surf_min);
+ xbt_dynar_foreach(all_existing_models, iter, model)
+ delete model;
+ xbt_dynar_free(&all_existing_models);
+ xbt_dynar_free(&model_list_invoke);
+ routing_exit();
- NOW = NOW + surf_min;
+ simgrid::surf::surfExitCallbacks();
- /* sequential version */
- xbt_dynar_foreach(model_list, iter, model) {
- surf_update_actions_state(model);
+ if (future_evt_set) {
+ delete future_evt_set;
+ future_evt_set = nullptr;
}
-#ifdef HAVE_TRACING
- TRACE_paje_dump_buffer (0);
+#ifdef HAVE_THREAD_CONTEXTS
+ xbt_parmap_destroy(surf_parmap);
#endif
- return surf_min;
-}
-
-XBT_INLINE double surf_get_clock(void)
-{
- return NOW;
-}
+ tmgr_finalize();
+ sg_platf_exit();
-void routing_get_route_and_latency(sg_routing_edge_t src, sg_routing_edge_t dst,
- xbt_dynar_t * route, double *latency){
- routing_platf->getRouteAndLatency(src, dst, route, latency);
+ NOW = 0; /* Just in case the user plans to restart the simulation afterward */
}
/*********
- * MODEL *
+ * Model *
*********/
-const char *surf_model_name(surf_model_t model){
- return model->m_name.c_str();
-}
+namespace simgrid {
+namespace surf {
-xbt_swag_t surf_model_done_action_set(surf_model_t model){
- return model->p_doneActionSet;
+Model::Model()
+ : p_maxminSystem(NULL)
+{
+ p_readyActionSet = new ActionList();
+ p_runningActionSet = new ActionList();
+ p_failedActionSet = new ActionList();
+ p_doneActionSet = new ActionList();
+
+ p_modifiedSet = NULL;
+ p_actionHeap = NULL;
+ p_updateMechanism = UM_UNDEFINED;
+ m_selectiveUpdate = 0;
}
-xbt_swag_t surf_model_failed_action_set(surf_model_t model){
- return model->p_failedActionSet;
+Model::~Model(){
+ delete p_readyActionSet;
+ delete p_runningActionSet;
+ delete p_failedActionSet;
+ delete p_doneActionSet;
}
-xbt_swag_t surf_model_ready_action_set(surf_model_t model){
- return model->p_readyActionSet;
+double Model::next_occuring_event(double now)
+{
+ //FIXME: set the good function once and for all
+ if (p_updateMechanism == UM_LAZY)
+ return next_occuring_event_lazy(now);
+ else if (p_updateMechanism == UM_FULL)
+ return next_occuring_event_full(now);
+ else
+ xbt_die("Invalid cpu update mechanism!");
}
-xbt_swag_t surf_model_running_action_set(surf_model_t model){
- return model->p_runningActionSet;
+double Model::next_occuring_event_lazy(double now)
+{
+ Action *action = NULL;
+ double min = -1;
+ double share;
+
+ XBT_DEBUG
+ ("Before share resources, the size of modified actions set is %zd",
+ p_modifiedSet->size());
+
+ lmm_solve(p_maxminSystem);
+
+ XBT_DEBUG
+ ("After share resources, The size of modified actions set is %zd",
+ p_modifiedSet->size());
+
+ while(!p_modifiedSet->empty()) {
+ action = &(p_modifiedSet->front());
+ p_modifiedSet->pop_front();
+ int max_dur_flag = 0;
+
+ if (action->getStateSet() != p_runningActionSet)
+ continue;
+
+ /* bogus priority, skip it */
+ if (action->getPriority() <= 0 || action->getHat()==LATENCY)
+ continue;
+
+ action->updateRemainingLazy(now);
+
+ min = -1;
+ share = lmm_variable_getvalue(action->getVariable());
+
+ if (share > 0) {
+ double time_to_completion;
+ if (action->getRemains() > 0) {
+ time_to_completion = action->getRemainsNoUpdate() / share;
+ } else {
+ time_to_completion = 0.0;
+ }
+ min = now + time_to_completion; // when the task will complete if nothing changes
+ }
+
+ if ((action->getMaxDuration() != NO_MAX_DURATION)
+ && (min == -1
+ || action->getStartTime() +
+ action->getMaxDuration() < min)) {
+ min = action->getStartTime() +
+ action->getMaxDuration(); // when the task will complete anyway because of the deadline if any
+ max_dur_flag = 1;
+ }
+
+
+ XBT_DEBUG("Action(%p) corresponds to variable %d", action, action->getVariable()->id_int);
+
+ XBT_DEBUG("Action(%p) Start %f. May finish at %f (got a share of %f). Max_duration %f", action,
+ action->getStartTime(), min, share,
+ action->getMaxDuration());
+
+ if (min != -1) {
+ action->heapUpdate(p_actionHeap, min, max_dur_flag ? MAX_DURATION : NORMAL);
+ XBT_DEBUG("Insert at heap action(%p) min %f now %f", action, min,
+ now);
+ } else DIE_IMPOSSIBLE;
+ }
+
+ //hereafter must have already the min value for this resource model
+ if (xbt_heap_size(p_actionHeap) > 0)
+ min = xbt_heap_maxkey(p_actionHeap) - now;
+ else
+ min = -1;
+
+ XBT_DEBUG("The minimum with the HEAP %f", min);
+
+ return min;
}
-surf_action_t surf_workstation_model_execute_parallel_task(surf_workstation_model_t model,
- int workstation_nb,
- void **workstation_list,
- double *computation_amount,
- double *communication_amount,
- double rate){
- return model->executeParallelTask(workstation_nb, workstation_list, computation_amount, communication_amount, rate);
+double Model::next_occuring_event_full(double /*now*/) {
+ THROW_UNIMPLEMENTED;
}
-surf_action_t surf_workstation_model_communicate(surf_workstation_model_t model, surf_workstation_CLM03_t src, surf_workstation_CLM03_t dst, double size, double rate){
- model->communicate(src, dst, size, rate);
+double Model::shareResourcesMaxMin(ActionList *running_actions,
+ lmm_system_t sys,
+ void (*solve) (lmm_system_t))
+{
+ Action *action = NULL;
+ double min = -1;
+ double value = -1;
+
+ solve(sys);
+
+ ActionList::iterator it(running_actions->begin()), itend(running_actions->end());
+ for(; it != itend ; ++it) {
+ action = &*it;
+ value = lmm_variable_getvalue(action->getVariable());
+ if ((value > 0) || (action->getMaxDuration() >= 0))
+ break;
+ }
+
+ if (!action)
+ return -1.0;
+
+ if (value > 0) {
+ if (action->getRemains() > 0)
+ min = action->getRemainsNoUpdate() / value;
+ else
+ min = 0.0;
+ if ((action->getMaxDuration() >= 0) && (action->getMaxDuration() < min))
+ min = action->getMaxDuration();
+ } else
+ min = action->getMaxDuration();
+
+
+ for (++it; it != itend; ++it) {
+ action = &*it;
+ value = lmm_variable_getvalue(action->getVariable());
+ if (value > 0) {
+ if (action->getRemains() > 0)
+ value = action->getRemainsNoUpdate() / value;
+ else
+ value = 0.0;
+ if (value < min) {
+ min = value;
+ XBT_DEBUG("Updating min (value) with %p: %f", action, min);
+ }
+ }
+ if ((action->getMaxDuration() >= 0) && (action->getMaxDuration() < min)) {
+ min = action->getMaxDuration();
+ XBT_DEBUG("Updating min (duration) with %p: %f", action, min);
+ }
+ }
+ XBT_DEBUG("min value : %f", min);
+
+ return min;
}
-xbt_dynar_t surf_workstation_model_get_route(surf_workstation_model_t model,
- surf_workstation_t src, surf_workstation_t dst){
- return model->getRoute((WorkstationCLM03Ptr)surf_workstation_resource_priv(src),(WorkstationCLM03Ptr)surf_workstation_resource_priv(dst));
+void Model::updateActionsState(double now, double delta)
+{
+ if (p_updateMechanism == UM_FULL)
+ updateActionsStateFull(now, delta);
+ else if (p_updateMechanism == UM_LAZY)
+ updateActionsStateLazy(now, delta);
+ else
+ xbt_die("Invalid cpu update mechanism!");
}
-surf_action_t surf_network_model_communicate(surf_network_model_t model, sg_routing_edge_t src, sg_routing_edge_t dst, double size, double rate){
- model->communicate(src, dst, size, rate);
+void Model::updateActionsStateLazy(double /*now*/, double /*delta*/)
+{
+ THROW_UNIMPLEMENTED;
}
-const char *surf_resource_name(surf_resource_t resource){
- return resource->m_name;
+void Model::updateActionsStateFull(double /*now*/, double /*delta*/)
+{
+ THROW_UNIMPLEMENTED;
}
-xbt_dict_t surf_resource_get_properties(surf_resource_t resource){
- return resource->m_properties;
}
+}
+
+/************
+ * Resource *
+ ************/
+
+namespace simgrid {
+namespace surf {
+
+Resource::Resource(Model *model, const char *name)
+ : Resource(model, name, 1/*ON*/)
+{}
+
+Resource::Resource(Model *model, const char *name, lmm_constraint_t constraint)
+ : Resource(model, name, constraint, 1/*ON*/)
+{}
+
+Resource::Resource(Model *model, const char *name, lmm_constraint_t constraint, int initiallyOn)
+ : p_name(xbt_strdup(name))
+ , p_model(model)
+ , m_isOn(initiallyOn)
+ , p_constraint(constraint)
+{}
+
+Resource::Resource(Model *model, const char *name, int initiallyOn)
+ : p_name(xbt_strdup(name))
+ , p_model(model)
+ , m_isOn(initiallyOn)
+{}
+
-e_surf_resource_state_t surf_resource_get_state(surf_resource_t resource){
- return resource->getState();
+Resource::~Resource() {
+ xbt_free((void*)p_name);
}
-surf_action_t surf_workstation_sleep(surf_workstation_t resource, double duration){
- return ((surf_workstation_CLM03_t)surf_workstation_resource_priv(resource))->sleep(duration);
+bool Resource::isOn() {
+ return m_isOn;
+}
+bool Resource::isOff() {
+ return ! m_isOn;
}
-double surf_workstation_get_speed(surf_workstation_t resource, double load){
- return ((surf_workstation_CLM03_t)surf_workstation_resource_priv(resource))->getSpeed(load);
+void Resource::turnOn()
+{
+ if (!m_isOn) {
+ m_isOn = true;
+ }
}
-double surf_workstation_get_available_speed(surf_workstation_t resource){
- return ((surf_workstation_CLM03_t)surf_workstation_resource_priv(resource))->getAvailableSpeed();
+void Resource::turnOff()
+{
+ if (m_isOn) {
+ m_isOn = false;
+ }
}
-int surf_workstation_get_core(surf_workstation_t resource){
- return ((surf_workstation_CLM03_t)surf_workstation_resource_priv(resource))->getCore();
+Model *Resource::getModel() {
+ return p_model;
}
-surf_action_t surf_workstation_execute(surf_workstation_t resource, double size){
- return ((surf_workstation_CLM03_t)surf_workstation_resource_priv(resource))->execute(size);
+const char *Resource::getName() {
+ return p_name;
}
-surf_action_t surf_workstation_communicate(surf_workstation_t workstation_src, surf_workstation_t workstation_dst, double size, double rate){
- return surf_workstation_model->communicate((surf_workstation_CLM03_t)surf_workstation_resource_priv(workstation_src),(surf_workstation_CLM03_t)surf_workstation_resource_priv(workstation_dst), size, rate);
+lmm_constraint_t Resource::getConstraint() {
+ return p_constraint;
}
-surf_action_t surf_workstation_open(surf_workstation_t workstation, const char* mount, const char* path){
- return ((surf_workstation_CLM03_t)surf_workstation_resource_priv(workstation))->open(mount, path);
+}
}
-surf_action_t surf_workstation_close(surf_workstation_t workstation, surf_file_t fd){
- return ((surf_workstation_CLM03_t)surf_workstation_resource_priv(workstation))->close(fd);
+/**********
+ * Action *
+ **********/
+
+const char *surf_action_state_names[6] = {
+ "SURF_ACTION_READY",
+ "SURF_ACTION_RUNNING",
+ "SURF_ACTION_FAILED",
+ "SURF_ACTION_DONE",
+ "SURF_ACTION_TO_FREE",
+ "SURF_ACTION_NOT_IN_THE_SYSTEM"
+};
+
+/* added to manage the communication action's heap */
+void surf_action_lmm_update_index_heap(void *action, int i) {
+ static_cast<simgrid::surf::Action*>(action)->updateIndexHeap(i);
}
-int surf_workstation_unlink(surf_workstation_t workstation, surf_file_t fd){
- return ((surf_workstation_CLM03_t)surf_workstation_resource_priv(workstation))->unlink(fd);
+namespace simgrid {
+namespace surf {
+
+void Action::initialize(simgrid::surf::Model *model, double cost, bool failed,
+ lmm_variable_t var)
+{
+ m_remains = cost;
+ m_start = surf_get_clock();
+ m_cost = cost;
+ p_model = model;
+ p_variable = var;
+ if (failed)
+ p_stateSet = getModel()->getFailedActionSet();
+ else
+ p_stateSet = getModel()->getRunningActionSet();
+
+ p_stateSet->push_back(*this);
}
-surf_action_t surf_workstation_ls(surf_workstation_t workstation, const char* mount, const char *path){
- return ((surf_workstation_CLM03_t)surf_workstation_resource_priv(workstation))->ls(mount, path);
+Action::Action(simgrid::surf::Model *model, double cost, bool failed)
+{
+ initialize(model, cost, failed);
}
-size_t surf_workstation_get_size(surf_workstation_t workstation, surf_file_t fd){
- return ((surf_workstation_CLM03_t)surf_workstation_resource_priv(workstation))->getSize(fd);
+Action::Action(simgrid::surf::Model *model, double cost, bool failed, lmm_variable_t var)
+{
+ initialize(model, cost, failed, var);
}
-surf_action_t surf_workstation_read(surf_workstation_t resource, void *ptr, size_t size, surf_file_t fd){
- return ((surf_workstation_CLM03_t)surf_workstation_resource_priv(resource))->read(ptr, size, fd);
+Action::~Action() {
+ xbt_free(p_category);
}
-surf_action_t surf_workstation_write(surf_workstation_t resource, const void *ptr, size_t size, surf_file_t fd){
- return ((surf_workstation_CLM03_t)surf_workstation_resource_priv(resource))->write(ptr, size, fd);
+void Action::finish() {
+ m_finish = surf_get_clock();
}
-int surf_network_link_is_shared(surf_network_link_t link){
- return link->isShared();
+e_surf_action_state_t Action::getState()
+{
+ if (p_stateSet == getModel()->getReadyActionSet())
+ return SURF_ACTION_READY;
+ if (p_stateSet == getModel()->getRunningActionSet())
+ return SURF_ACTION_RUNNING;
+ if (p_stateSet == getModel()->getFailedActionSet())
+ return SURF_ACTION_FAILED;
+ if (p_stateSet == getModel()->getDoneActionSet())
+ return SURF_ACTION_DONE;
+ return SURF_ACTION_NOT_IN_THE_SYSTEM;
+}
+
+void Action::setState(e_surf_action_state_t state)
+{
+ //surf_action_state_t action_state = &(action->model_type->states);
+ XBT_IN("(%p,%s)", this, surf_action_state_names[state]);
+ p_stateSet->erase(p_stateSet->iterator_to(*this));
+ if (state == SURF_ACTION_READY)
+ p_stateSet = getModel()->getReadyActionSet();
+ else if (state == SURF_ACTION_RUNNING)
+ p_stateSet = getModel()->getRunningActionSet();
+ else if (state == SURF_ACTION_FAILED)
+ p_stateSet = getModel()->getFailedActionSet();
+ else if (state == SURF_ACTION_DONE)
+ p_stateSet = getModel()->getDoneActionSet();
+ else
+ p_stateSet = NULL;
+
+ if (p_stateSet)
+ p_stateSet->push_back(*this);
+ XBT_OUT();
+}
+
+double Action::getBound()
+{
+ return (p_variable) ? lmm_variable_getbound(p_variable) : 0;
}
-double surf_network_link_get_bandwidth(surf_network_link_t link){
- return link->getBandwidth();
+void Action::setBound(double bound)
+{
+ XBT_IN("(%p,%g)", this, bound);
+ if (p_variable)
+ lmm_update_variable_bound(getModel()->getMaxminSystem(), p_variable, bound);
+
+ if (getModel()->getUpdateMechanism() == UM_LAZY && getLastUpdate()!=surf_get_clock())
+ heapRemove(getModel()->getActionHeap());
+ XBT_OUT();
}
-double surf_network_link_get_latency(surf_network_link_t link){
- return link->getLatency();
+double Action::getStartTime()
+{
+ return m_start;
}
-const char *surf_cpu_name(surf_cpu_t resource){
- return resource->m_name;
+double Action::getFinishTime()
+{
+ /* keep the function behavior, some models (cpu_ti) change the finish time before the action end */
+ return m_remains == 0 ? m_finish : -1;
}
-surf_action_t surf_cpu_execute(surf_cpu_t cpu, double size){
- return cpu->execute(size);
+void Action::setData(void* data)
+{
+ p_data = data;
}
-surf_action_t surf_cpu_sleep(surf_cpu_t cpu, double duration){
- return cpu->sleep(duration);
+void Action::setCategory(const char *category)
+{
+ XBT_IN("(%p,%s)", this, category);
+ p_category = xbt_strdup(category);
+ XBT_OUT();
}
-double surf_action_get_start_time(surf_action_t action){
- return action->m_start;
+void Action::ref(){
+ m_refcount++;
}
-double surf_action_get_finish_time(surf_action_t action){
- return action->m_finish;
+void Action::setMaxDuration(double duration)
+{
+ XBT_IN("(%p,%g)", this, duration);
+ m_maxDuration = duration;
+ if (getModel()->getUpdateMechanism() == UM_LAZY) // remove action from the heap
+ heapRemove(getModel()->getActionHeap());
+ XBT_OUT();
}
-double surf_action_get_remains(surf_action_t action){
- return action->m_remains;
+void Action::gapRemove() {}
+
+void Action::setPriority(double priority)
+{
+ XBT_IN("(%p,%g)", this, priority);
+ m_priority = priority;
+ lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), priority);
+
+ if (getModel()->getUpdateMechanism() == UM_LAZY)
+ heapRemove(getModel()->getActionHeap());
+ XBT_OUT();
}
-void surf_action_unref(surf_action_t action){
- action->unref();
+void Action::cancel(){
+ setState(SURF_ACTION_FAILED);
+ if (getModel()->getUpdateMechanism() == UM_LAZY) {
+ if (action_lmm_hook.is_linked())
+ getModel()->getModifiedSet()->erase(getModel()->getModifiedSet()->iterator_to(*this));
+ heapRemove(getModel()->getActionHeap());
+ }
}
-void surf_action_suspend(surf_action_t action){
- action->suspend();
+int Action::unref(){
+ m_refcount--;
+ if (!m_refcount) {
+ if (action_hook.is_linked())
+ p_stateSet->erase(p_stateSet->iterator_to(*this));
+ if (getVariable())
+ lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
+ if (getModel()->getUpdateMechanism() == UM_LAZY) {
+ /* remove from heap */
+ heapRemove(getModel()->getActionHeap());
+ if (action_lmm_hook.is_linked())
+ getModel()->getModifiedSet()->erase(getModel()->getModifiedSet()->iterator_to(*this));
+ }
+ delete this;
+ return 1;
+ }
+ return 0;
}
-void surf_action_resume(surf_action_t action){
- action->suspend();
+void Action::suspend()
+{
+ XBT_IN("(%p)", this);
+ if (m_suspended != 2) {
+ lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
+ m_suspended = 1;
+ if (getModel()->getUpdateMechanism() == UM_LAZY)
+ heapRemove(getModel()->getActionHeap());
+ }
+ XBT_OUT();
}
-void surf_action_cancel(surf_action_t action){
- action->cancel();
+void Action::resume()
+{
+ XBT_IN("(%p)", this);
+ if (m_suspended != 2) {
+ lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), m_priority);
+ m_suspended = 0;
+ if (getModel()->getUpdateMechanism() == UM_LAZY)
+ heapRemove(getModel()->getActionHeap());
+ }
+ XBT_OUT();
}
-void surf_action_set_priority(surf_action_t action, double priority){
- action->setPriority(priority);
+bool Action::isSuspended()
+{
+ return m_suspended == 1;
+}
+/* insert action on heap using a given key and a hat (heap_action_type)
+ * a hat can be of three types for communications:
+ *
+ * NORMAL = this is a normal heap entry stating the date to finish transmitting
+ * LATENCY = this is a heap entry to warn us when the latency is payed
+ * MAX_DURATION =this is a heap entry to warn us when the max_duration limit is reached
+ */
+void Action::heapInsert(xbt_heap_t heap, double key, enum heap_action_type hat)
+{
+ m_hat = hat;
+ xbt_heap_push(heap, this, key);
}
-void surf_action_set_category(surf_action_t action, const char *category){
- action->setCategory(category);
+void Action::heapRemove(xbt_heap_t heap)
+{
+ m_hat = NOTSET;
+ if (m_indexHeap >= 0) {
+ xbt_heap_remove(heap, m_indexHeap);
+ }
}
-void *surf_action_get_data(surf_action_t action){
- return action->p_data;
+void Action::heapUpdate(xbt_heap_t heap, double key, enum heap_action_type hat)
+{
+ m_hat = hat;
+ if (m_indexHeap >= 0) {
+ xbt_heap_update(heap, m_indexHeap, key);
+ }else{
+ xbt_heap_push(heap, this, key);
+ }
}
-void surf_action_set_data(surf_action_t action, void *data){
- action->p_data = data;
+void Action::updateIndexHeap(int i) {
+ m_indexHeap = i;
}
-e_surf_action_state_t surf_action_get_state(surf_action_t action){
- return action->getState();
+double Action::getRemains()
+{
+ XBT_IN("(%p)", this);
+ /* update remains before return it */
+ if (getModel()->getUpdateMechanism() == UM_LAZY) /* update remains before return it */
+ updateRemainingLazy(surf_get_clock());
+ XBT_OUT();
+ return m_remains;
}
-int surf_action_get_cost(surf_action_t action){
- return action->m_cost;
+double Action::getRemainsNoUpdate()
+{
+ return m_remains;
}
-surf_file_t surf_storage_action_get_file(surf_storage_action_lmm_t action){
- return action->p_file;
+//FIXME split code in the right places
+void Action::updateRemainingLazy(double now)
+{
+ double delta = 0.0;
+
+ if(getModel() == surf_network_model)
+ {
+ if (m_suspended != 0)
+ return;
+ }
+ else
+ {
+ xbt_assert(p_stateSet == getModel()->getRunningActionSet(),
+ "You're updating an action that is not running.");
+
+ /* bogus priority, skip it */
+ xbt_assert(m_priority > 0,
+ "You're updating an action that seems suspended.");
+ }
+
+ delta = now - m_lastUpdate;
+
+ if (m_remains > 0) {
+ XBT_DEBUG("Updating action(%p): remains was %f, last_update was: %f", this, m_remains, m_lastUpdate);
+ double_update(&m_remains, m_lastValue * delta, sg_surf_precision*sg_maxmin_precision);
+
+ if (getModel() == surf_cpu_model_pm && TRACE_is_enabled()) {
+ simgrid::surf::Resource *cpu = static_cast<simgrid::surf::Resource*>(
+ lmm_constraint_id(lmm_get_cnst_from_var(getModel()->getMaxminSystem(), getVariable(), 0)));
+ TRACE_surf_host_set_utilization(cpu->getName(), getCategory(), m_lastValue, m_lastUpdate, now - m_lastUpdate);
+ }
+ XBT_DEBUG("Updating action(%p): remains is now %f", this, m_remains);
+ }
+
+ if(getModel() == surf_network_model)
+ {
+ if (m_maxDuration != NO_MAX_DURATION)
+ double_update(&m_maxDuration, delta, sg_surf_precision);
+
+ //FIXME: duplicated code
+ if ((m_remains <= 0) &&
+ (lmm_get_variable_weight(getVariable()) > 0)) {
+ finish();
+ setState(SURF_ACTION_DONE);
+ heapRemove(getModel()->getActionHeap());
+ } else if (((m_maxDuration != NO_MAX_DURATION)
+ && (m_maxDuration <= 0))) {
+ finish();
+ setState(SURF_ACTION_DONE);
+ heapRemove(getModel()->getActionHeap());
+ }
+ }
+
+ m_lastUpdate = now;
+ m_lastValue = lmm_variable_getvalue(getVariable());
}
-xbt_dict_t surf_storage_action_get_ls_dict(surf_storage_action_lmm_t action){
- return action->p_lsDict;
+}
}
