+++ /dev/null
-/*
- * vm_workstation.cpp
- *
- * Created on: Nov 12, 2013
- * Author: bedaride
- */
-#include "vm_workstation.hpp"
-#include "cpu_cas01.hpp"
-
-extern "C" {
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_vm_workstation, surf,
- "Logging specific to the SURF VM workstation module");
-}
-
-WorkstationVMModelPtr surf_vm_workstation_model = NULL;
-
-void surf_vm_workstation_model_init_current_default(void){
- if (surf_cpu_model_vm) {
- surf_vm_workstation_model = new WorkstationVMModel();
- ModelPtr model = static_cast<ModelPtr>(surf_vm_workstation_model);
-
- xbt_dynar_push(model_list, &model);
- xbt_dynar_push(model_list_invoke, &model);
- }
-}
-
-/*********
- * Model *
- *********/
-
-WorkstationVMModel::WorkstationVMModel() : WorkstationModel("Virtual Workstation") {
- p_cpuModel = surf_cpu_model_vm;
-}
-
-/* ind means ''indirect'' that this is a reference on the whole dict_elm
- * structure (i.e not on the surf_resource_private infos) */
-
-void WorkstationVMModel::createResource(const char *name, void *ind_phys_workstation)
-{
- WorkstationVM2013LmmPtr ws = new WorkstationVM2013Lmm(this, name, NULL, static_cast<surf_resource_t>(ind_phys_workstation));
-
- xbt_lib_set(host_lib, name, SURF_WKS_LEVEL, static_cast<ResourcePtr>(ws));
-
- /* TODO:
- * - check how network requests are scheduled between distinct processes competing for the same card.
- */
-}
-
-static inline double get_solved_value(CpuActionLmmPtr cpu_action)
-{
- return cpu_action->p_variable->value;
-}
-
-/* In the real world, processes on the guest operating system will be somewhat
- * degraded due to virtualization overhead. The total CPU share that these
- * processes get is smaller than that of the VM process gets on a host
- * operating system. */
-// const double virt_overhead = 0.95;
-const double virt_overhead = 1;
-
-double WorkstationVMModel::shareResources(double now)
-{
- /* TODO: udpate action's cost with the total cost of processes on the VM. */
-
-
- /* 0. Make sure that we already calculated the resource share at the physical
- * machine layer. */
- {
- ModelPtr ws_model = static_cast<ModelPtr>(surf_workstation_model);
- ModelPtr vm_ws_model = static_cast<ModelPtr>(surf_vm_workstation_model);
- unsigned int index_of_pm_ws_model = xbt_dynar_search(model_list_invoke, &ws_model);
- unsigned int index_of_vm_ws_model = xbt_dynar_search(model_list_invoke, &vm_ws_model);
- xbt_assert((index_of_pm_ws_model < index_of_vm_ws_model), "Cannot assume surf_workstation_model comes before");
-
- /* Another option is that we call sub_ws->share_resource() here. The
- * share_resource() function has no side-effect. We can call it here to
- * ensure that. */
- }
-
-
- /* 1. Now we know how many resource should be assigned to each virtual
- * machine. We update constraints of the virtual machine layer.
- *
- *
- * If we have two virtual machine (VM1 and VM2) on a physical machine (PM1).
- * X1 + X2 = C (Equation 1)
- * where
- * the resource share of VM1: X1
- * the resource share of VM2: X2
- * the capacity of PM1: C
- *
- * Then, if we have two process (P1 and P2) on VM1.
- * X1_1 + X1_2 = X1 (Equation 2)
- * where
- * the resource share of P1: X1_1
- * the resource share of P2: X1_2
- * the capacity of VM1: X1
- *
- * Equation 1 was solved in the physical machine layer.
- * Equation 2 is solved in the virtual machine layer (here).
- * X1 must be passed to the virtual machine laye as a constraint value.
- *
- **/
-
- /* iterate for all hosts including virtual machines */
- xbt_lib_cursor_t cursor;
- char *key;
- void **ind_host;
- xbt_lib_foreach(host_lib, cursor, key, ind_host) {
- WorkstationCLM03Ptr ws_clm03 = dynamic_cast<WorkstationCLM03Ptr>(
- static_cast<ResourcePtr>(ind_host[SURF_WKS_LEVEL]));
- CpuCas01LmmPtr cpu_cas01 = dynamic_cast<CpuCas01LmmPtr>(
- static_cast<ResourcePtr>(ind_host[SURF_CPU_LEVEL]));
-
- if (!ws_clm03)
- continue;
- /* skip if it is not a virtual machine */
- if (ws_clm03->p_model != static_cast<ModelPtr>(surf_vm_workstation_model))
- continue;
- xbt_assert(cpu_cas01, "cpu-less workstation");
-
- /* It is a virtual machine, so we can cast it to workstation_VM2013_t */
- WorkstationVM2013Ptr ws_vm2013 = dynamic_cast<WorkstationVM2013Ptr>(ws_clm03);
-
- double solved_value = get_solved_value(ws_vm2013->p_action);
- XBT_DEBUG("assign %f to vm %s @ pm %s", solved_value,
- ws_clm03->m_name, ws_vm2013->p_subWs->m_name);
-
- // TODO: check lmm_update_constraint_bound() works fine instead of the below manual substitution.
- // cpu_cas01->constraint->bound = solved_value;
- xbt_assert(cpu_cas01->p_model == static_cast<ModelPtr>(surf_cpu_model_vm));
- lmm_system_t vcpu_system = cpu_cas01->p_model->p_maxminSystem;
- lmm_update_constraint_bound(vcpu_system, cpu_cas01->p_constraint, virt_overhead * solved_value);
- }
-
-
- /* 2. Calculate resource share at the virtual machine layer. */
- double ret = WorkstationModel::shareResources(now);
-
-
- /* FIXME: 3. do we have to re-initialize our cpu_action object? */
-#if 0
- /* iterate for all hosts including virtual machines */
- xbt_lib_foreach(host_lib, cursor, key, ind_host) {
- WorkstationCLM03Ptr ws_clm03 = ind_host[SURF_WKS_LEVEL];
-
- /* skip if it is not a virtual machine */
- if (!ws_clm03)
- continue;
- if (ws_clm03->p_model != surf_vm_workstation_model)
- continue;
-
- /* It is a virtual machine, so we can cast it to workstation_VM2013_t */
- {
-#if 0
- WorkstationVM2013Ptr ws_vm2013 = (workstation_VM2013_t) ws_clm03;
- XBT_INFO("cost %f remains %f start %f finish %f", ws_vm2013->cpu_action->cost,
- ws_vm2013->cpu_action->remains,
- ws_vm2013->cpu_action->start,
- ws_vm2013->cpu_action->finish
- );
-#endif
-#if 0
- void *ind_sub_host = xbt_lib_get_elm_or_null(host_lib, ws_vm2013->sub_ws->generic_resource.name);
- surf_cpu_model_pm->action_unref(ws_vm2013->cpu_action);
- /* FIXME: this means busy loop? */
- // ws_vm2013->cpu_action = surf_cpu_model_pm->extension.cpu.execute(ind_sub_host, GUESTOS_NOISE);
- ws_vm2013->cpu_action = surf_cpu_model_pm->extension.cpu.execute(ind_sub_host, 0);
-#endif
-
- }
- }
-#endif
-
-
- return ret;
-}
-
-/************
- * Resource *
- ************/
-WorkstationVM2013Lmm::WorkstationVM2013Lmm(WorkstationVMModelPtr model, const char* name, xbt_dict_t props,
- surf_resource_t ind_phys_workstation)
- : Resource(model, name, props),
- WorkstationCLM03(model, name, props, NULL, NULL, NULL),
- WorkstationVM2013(model, name, props, NULL, NULL),
- WorkstationCLM03Lmm(model, name, props, NULL, NULL, NULL) {
- WorkstationCLM03Ptr sub_ws = dynamic_cast<WorkstationCLM03Ptr>(
- static_cast<ResourcePtr>(
- surf_workstation_resource_priv(ind_phys_workstation)));
-
- /* Currently, we assume a VM has no storage. */
- p_storage = NULL;
-
- /* Currently, a VM uses the network resource of its physical host. In
- * host_lib, this network resource object is refered from two different keys.
- * When deregistering the reference that points the network resource object
- * from the VM name, we have to make sure that the system does not call the
- * free callback for the network resource object. The network resource object
- * is still used by the physical machine. */
- p_netElm = static_cast<RoutingEdgePtr>(xbt_lib_get_or_null(host_lib, sub_ws->m_name, ROUTING_HOST_LEVEL));
- xbt_lib_set(host_lib, name, ROUTING_HOST_LEVEL, p_netElm);
-
- p_subWs = sub_ws;
- p_currentState = SURF_VM_STATE_CREATED;
-
- // //// CPU RELATED STUFF ////
- // Roughly, create a vcpu resource by using the values of the sub_cpu one.
- CpuCas01LmmPtr sub_cpu = dynamic_cast<CpuCas01LmmPtr>(
- static_cast<ResourcePtr>(
- surf_cpu_resource_priv(ind_phys_workstation)));
-
- /* We can assume one core and cas01 cpu for the first step.
- * Do xbt_lib_set(host_lib, name, SURF_CPU_LEVEL, cpu) if you get the resource. */
-
- p_cpu = static_cast<CpuCas01ModelPtr>(surf_cpu_model_vm)->createResource(name, // name
- sub_cpu->p_powerPeakList, // host->power_peak,
- sub_cpu->m_pstate,
- 1, // host->power_scale,
- NULL, // host->power_trace,
- 1, // host->core_amount,
- SURF_RESOURCE_ON, // host->initial_state,
- NULL, // host->state_trace,
- NULL); // host->properties,
-
- /* We create cpu_action corresponding to a VM process on the host operating system. */
- /* FIXME: TODO: we have to peridocally input GUESTOS_NOISE to the system? how ? */
- // vm_ws->cpu_action = surf_cpu_model_pm->extension.cpu.execute(ind_phys_workstation, GUESTOS_NOISE);
- p_action = dynamic_cast<CpuActionLmmPtr>(sub_cpu->execute(0));
-
- /* The SURF_WKS_LEVEL at host_lib saves workstation_CLM03 objects. Please
- * note workstation_VM2013 objects, inheriting the workstation_CLM03
- * structure, are also saved there.
- *
- * If you want to get a workstation_VM2013 object from host_lib, see
- * ws->generic_resouce.model->type first. If it is
- * SURF_MODEL_TYPE_VM_WORKSTATION, you can cast ws to vm_ws. */
- XBT_INFO("Create VM(%s)@PM(%s) with %ld mounted disks", name, sub_ws->m_name, xbt_dynar_length(p_storage));
-}
-
-/*
- * A physical host does not disapper in the current SimGrid code, but a VM may
- * disapper during a simulation.
- */
-WorkstationVM2013Lmm::~WorkstationVM2013Lmm()
-{
- /* ind_phys_workstation equals to smx_host_t */
- surf_resource_t ind_vm_workstation = xbt_lib_get_elm_or_null(host_lib, m_name);
-
- /* Before clearing the entries in host_lib, we have to pick up resources. */
- CpuCas01LmmPtr cpu = dynamic_cast<CpuCas01LmmPtr>(
- static_cast<ResourcePtr>(
- surf_cpu_resource_priv(ind_vm_workstation)));
-
- /* We deregister objects from host_lib, without invoking the freeing callback
- * of each level.
- *
- * Do not call xbt_lib_remove() here. It deletes all levels of the key,
- * including MSG_HOST_LEVEL and others. We should unregister only what we know.
- */
- xbt_lib_unset(host_lib, m_name, SURF_CPU_LEVEL, 0);
- xbt_lib_unset(host_lib, m_name, ROUTING_HOST_LEVEL, 0);
- xbt_lib_unset(host_lib, m_name, SURF_WKS_LEVEL, 0);
-
- /* TODO: comment out when VM stroage is implemented. */
- // xbt_lib_unset(host_lib, name, SURF_STORAGE_LEVEL, 0);
-
-
- /* Free the cpu_action of the VM. */
- int ret = p_action->unref();
- xbt_assert(ret == 1, "Bug: some resource still remains");
-
- /* Free the cpu resource of the VM. If using power_trace, we will have to */
- delete cpu;
-
- /* Free the network resource of the VM. */
- // Nothing has to be done, because net_elmts is just a pointer on the physical one
-
- /* Free the storage resource of the VM. */
- // Not relevant yet
-
- /* Free the workstation resource of the VM. */
-}
-
-e_surf_resource_state_t WorkstationVM2013Lmm::getState()
-{
- return (e_surf_resource_state_t) p_currentState;
-}
-
-void WorkstationVM2013Lmm::setState(e_surf_resource_state_t state)
-{
- p_currentState = (e_surf_vm_state_t) state;
-}
-
-void WorkstationVM2013Lmm::suspend()
-{
- p_action->suspend();
- p_currentState = SURF_VM_STATE_SUSPENDED;
-}
-
-void WorkstationVM2013Lmm::resume()
-{
- p_action->resume();
- p_currentState = SURF_VM_STATE_RUNNING;
-}
-
-void WorkstationVM2013Lmm::save()
-{
- p_currentState = SURF_VM_STATE_SAVING;
-
- /* FIXME: do something here */
- p_action->suspend();
- p_currentState = SURF_VM_STATE_SAVED;
-}
-
-void WorkstationVM2013Lmm::restore()
-{
- p_currentState = SURF_VM_STATE_RESTORING;
-
- /* FIXME: do something here */
- p_action->resume();
- p_currentState = SURF_VM_STATE_RUNNING;
-}
-
-/*
- * Update the physical host of the given VM
- */
-void WorkstationVM2013Lmm::migrate(surf_resource_t ind_dst_pm)
-{
- /* ind_phys_workstation equals to smx_host_t */
- WorkstationCLM03Ptr ws_clm03_dst = dynamic_cast<WorkstationCLM03Ptr>(
- static_cast<ResourcePtr>(
- surf_workstation_resource_priv(ind_dst_pm)));
- const char *vm_name = m_name;
- const char *pm_name_src = p_subWs->m_name;
- const char *pm_name_dst = ws_clm03_dst->m_name;
-
- xbt_assert(ws_clm03_dst);
-
- /* do something */
-
- /* update net_elm with that of the destination physical host */
- RoutingEdgePtr old_net_elm = p_netElm;
- RoutingEdgePtr new_net_elm = static_cast<RoutingEdgePtr>(xbt_lib_get_or_null(host_lib, pm_name_dst, ROUTING_HOST_LEVEL));
- xbt_assert(new_net_elm);
-
- /* Unregister the current net_elm from host_lib. Do not call the free callback. */
- xbt_lib_unset(host_lib, vm_name, ROUTING_HOST_LEVEL, 0);
-
- /* Then, resister the new one. */
- p_netElm = new_net_elm;
- xbt_lib_set(host_lib, vm_name, ROUTING_HOST_LEVEL, p_netElm);
-
- p_subWs = ws_clm03_dst;
-
- /* Update vcpu's action for the new pm */
- {
-#if 0
- XBT_INFO("cpu_action->remains %g", p_action->remains);
- XBT_INFO("cost %f remains %f start %f finish %f", p_action->cost,
- p_action->remains,
- p_action->start,
- p_action->finish
- );
- XBT_INFO("cpu_action state %d", surf_action_get_state(p_action));
-#endif
-
- /* create a cpu action bound to the pm model at the destination. */
- CpuActionLmmPtr new_cpu_action = dynamic_cast<CpuActionLmmPtr>(
- dynamic_cast<CpuCas01LmmPtr>(
- static_cast<ResourcePtr>(
- surf_cpu_resource_priv(ind_dst_pm)))->execute(0));
-
- e_surf_action_state_t state = surf_action_get_state(p_action);
- if (state != SURF_ACTION_DONE)
- XBT_CRITICAL("FIXME: may need a proper handling, %d", state);
- if (p_action->m_remains > 0)
- XBT_CRITICAL("FIXME: need copy the state(?), %f", p_action->m_remains);
-
- int ret = p_action->unref();
- xbt_assert(ret == 1, "Bug: some resource still remains");
-
- p_action = new_cpu_action;
- }
-
- XBT_DEBUG("migrate VM(%s): change net_elm (%p to %p)", vm_name, old_net_elm, new_net_elm);
- XBT_DEBUG("migrate VM(%s): change PM (%s to %s)", vm_name, pm_name_src, pm_name_dst);
-}
-
-void WorkstationVM2013Lmm::setBound(double bound){
- p_action->setBound(bound);
-}
-
-void WorkstationVM2013Lmm::setAffinity(CpuLmmPtr cpu, unsigned long mask){
- p_action->setAffinity(cpu, mask);
-}
-
-/*
- * A surf level object will be useless in the upper layer. Returing the
- * dict_elm of the host.
- **/
-surf_resource_t WorkstationVM2013Lmm::getPm()
-{
- return xbt_lib_get_elm_or_null(host_lib, p_subWs->m_name);
-}
-
-/* Adding a task to a VM updates the VCPU task on its physical machine. */
-ActionPtr WorkstationVM2013Lmm::execute(double size)
-{
- double old_cost = p_action->m_cost;
- double new_cost = old_cost + size;
-
- XBT_DEBUG("VM(%s)@PM(%s): update dummy action's cost (%f -> %f)",
- m_name, p_subWs->m_name,
- old_cost, new_cost);
-
- p_action->m_cost = new_cost;
-
- return WorkstationCLM03::execute(size);
-}
-
-/**********
- * Action *
- **********/
-
-//FIME:: handle action cancel
-