X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/9bc2f7734295810a24f98d65169f06705e3ea951..e7ed2d7de564fc46a1e0885e997900370bb811cf:/src/msg/msg_vm.cpp diff --git a/src/msg/msg_vm.cpp b/src/msg/msg_vm.cpp index 3cf519b9e4..00d1d02f14 100644 --- a/src/msg/msg_vm.cpp +++ b/src/msg/msg_vm.cpp @@ -1,4 +1,4 @@ -/* Copyright (c) 2012-2015. The SimGrid Team. +/* Copyright (c) 2012-2017. The SimGrid Team. * All rights reserved. */ /* This program is free software; you can redistribute it and/or modify it @@ -11,23 +11,31 @@ #include -#include "src/instr/instr_private.h" -#include "src/msg/msg_private.h" +#include "src/instr/instr_private.hpp" +#include "src/msg/msg_private.hpp" #include "src/plugins/vm/VirtualMachineImpl.hpp" #include "src/plugins/vm/VmHostExt.hpp" #include "simgrid/host.h" #include "simgrid/simix.hpp" +#include "xbt/string.hpp" -typedef struct dirty_page { - double prev_clock; - double prev_remaining; - msg_task_t task; -} s_dirty_page, *dirty_page_t; +extern "C" { + +struct s_dirty_page { + double prev_clock = 0.0; + double prev_remaining = 0.0; + msg_task_t task = nullptr; +}; +typedef s_dirty_page* dirty_page_t; XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_vm, msg, "Cloud-oriented parts of the MSG API"); /* **** ******** GENERAL ********* **** */ +const char* MSG_vm_get_name(msg_vm_t vm) +{ + return vm->getCname(); +} /** \ingroup m_vm_management * \brief Set the parameters of a given host @@ -37,24 +45,24 @@ XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_vm, msg, "Cloud-oriented parts of the MSG AP */ void MSG_vm_set_params(msg_vm_t vm, vm_params_t params) { - static_cast(vm)->setParameters(params); + vm->setParameters(params); } /** \ingroup m_vm_management * \brief Get the parameters of a given host * - * \param host a host + * \param vm the vm you are interested into * \param params a prameter object */ void MSG_vm_get_params(msg_vm_t vm, vm_params_t params) { - static_cast(vm)->parameters(params); + vm->getParameters(params); } /* **** Check state of a VM **** */ static inline int __MSG_vm_is_state(msg_vm_t vm, e_surf_vm_state_t state) { - return static_cast(vm)->pimpl_vm_->getState() == state; + return vm->pimpl_vm_ != nullptr && vm->pimpl_vm_->getState() == state; } /** @brief Returns whether the given VM has just created, not running. @@ -78,7 +86,7 @@ int MSG_vm_is_running(msg_vm_t vm) */ int MSG_vm_is_migrating(msg_vm_t vm) { - return static_cast(vm)->isMigrating(); + return vm->isMigrating(); } /** @brief Returns whether the given VM is currently suspended, not running. @@ -94,37 +102,37 @@ int MSG_vm_is_suspended(msg_vm_t vm) * @ingroup msg_VMs* * @param pm Physical machine that will host the VM * @param name Must be unique + * @param coreAmount Must be >= 1 * @param ramsize [TODO] * @param mig_netspeed Amount of Mbyte/s allocated to the migration (cannot be larger than net_cap). Use 0 if unsure. * @param dp_intensity Dirty page percentage according to migNetSpeed, [0-100]. Use 0 if unsure. */ -msg_vm_t MSG_vm_create(msg_host_t pm, const char* name, int ramsize, int mig_netspeed, int dp_intensity) +msg_vm_t MSG_vm_create(msg_host_t pm, const char* name, int coreAmount, int ramsize, int mig_netspeed, int dp_intensity) { simgrid::vm::VmHostExt::ensureVmExtInstalled(); /* For the moment, intensity_rate is the percentage against the migration bandwidth */ - double host_speed = MSG_host_get_speed(pm); - double update_speed = ((double)dp_intensity/100) * mig_netspeed; - msg_vm_t vm = MSG_vm_create_core(pm, name); + msg_vm_t vm = new simgrid::s4u::VirtualMachine(name, pm, coreAmount); s_vm_params_t params; - memset(¶ms, 0, sizeof(params)); - params.ramsize = (sg_size_t)ramsize * 1024 * 1024; - params.devsize = 0; - params.skip_stage2 = 0; + params.ncpus = 0; + params.ramsize = static_cast(ramsize) * 1024 * 1024; + params.overcommit = 0; + params.devsize = 0; + params.skip_stage1 = 0; + params.skip_stage2 = 0; params.max_downtime = 0.03; - params.dp_rate = (update_speed * 1024 * 1024) / host_speed; - params.dp_cap = params.ramsize * 0.9; // assume working set memory is 90% of ramsize - params.mig_speed = (double)mig_netspeed * 1024 * 1024; // mig_speed + params.mig_speed = static_cast(mig_netspeed) * 1024 * 1024; // mig_speed + params.dp_intensity = static_cast(dp_intensity) / 100; + params.dp_cap = params.ramsize * 0.9; // assume working set memory is 90% of ramsize - XBT_DEBUG("dp rate %f migspeed : %f intensity mem : %d, updatespeed %f, hostspeed %f", params.dp_rate, - params.mig_speed, dp_intensity, update_speed, host_speed); - static_cast(vm)->setParameters(¶ms); + XBT_DEBUG("migspeed : %f intensity mem : %d", params.mig_speed, dp_intensity); + vm->setParameters(¶ms); return vm; } -/** @brief Create a new VM object. The VM is not yet started. The resource of the VM is allocated upon MSG_vm_start(). +/** @brief Create a new VM object with the default parameters * @ingroup msg_VMs* * * A VM is treated as a host. The name of the VM must be unique among all hosts. @@ -134,7 +142,19 @@ msg_vm_t MSG_vm_create_core(msg_host_t pm, const char* name) xbt_assert(sg_host_by_name(name) == nullptr, "Cannot create a VM named %s: this name is already used by an host or a VM", name); - return new simgrid::s4u::VirtualMachine(name, pm); + return new simgrid::s4u::VirtualMachine(name, pm, 1); +} +/** @brief Create a new VM object with the default parameters, but with a specified amount of cores + * @ingroup msg_VMs* + * + * A VM is treated as a host. The name of the VM must be unique among all hosts. + */ +msg_vm_t MSG_vm_create_multicore(msg_host_t pm, const char* name, int coreAmount) +{ + xbt_assert(sg_host_by_name(name) == nullptr, + "Cannot create a VM named %s: this name is already used by an host or a VM", name); + + return new simgrid::s4u::VirtualMachine(name, pm, coreAmount); } /** @brief Destroy a VM. Destroy the VM object from the simulation. @@ -142,68 +162,35 @@ msg_vm_t MSG_vm_create_core(msg_host_t pm, const char* name) */ void MSG_vm_destroy(msg_vm_t vm) { - if (MSG_vm_is_migrating(vm)) - THROWF(vm_error, 0, "Cannot destroy VM '%s', which is migrating.", vm->cname()); + if (vm->isMigrating()) + THROWF(vm_error, 0, "Cannot destroy VM '%s', which is migrating.", vm->getCname()); /* First, terminate all processes on the VM if necessary */ if (MSG_vm_is_running(vm)) MSG_vm_shutdown(vm); - xbt_assert(MSG_vm_is_created(vm), "shutdown the given VM before destroying it"); - /* Then, destroy the VM object */ - simgrid::simix::kernelImmediate([vm]() { - vm->destroy(); - }); + simgrid::simix::kernelImmediate([vm]() { vm->destroy(); }); if (TRACE_msg_vm_is_enabled()) { - container_t container = PJ_container_get(vm->cname()); - PJ_container_remove_from_parent(container); - PJ_container_free(container); + container_t container = simgrid::instr::Container::byName(vm->getName()); + container->removeFromParent(); + delete container; } } /** @brief Start a vm (i.e., boot the guest operating system) * @ingroup msg_VMs * - * If the VM cannot be started (because of memory overprovisionning), an exception is generated. + * If the VM cannot be started (because of memory over-provisioning), an exception is generated. */ void MSG_vm_start(msg_vm_t vm) { - simgrid::simix::kernelImmediate([vm]() { - simgrid::vm::VmHostExt::ensureVmExtInstalled(); - - simgrid::s4u::VirtualMachine* typedVM = static_cast(vm); - simgrid::s4u::Host* pm = typedVM->pimpl_vm_->getPm(); - if (pm->extension() == nullptr) - pm->extension_set(new simgrid::vm::VmHostExt()); - - long pm_ramsize = pm->extension()->ramsize; - int pm_overcommit = pm->extension()->overcommit; - long vm_ramsize = typedVM->getRamsize(); - - if (pm_ramsize && !pm_overcommit) { /* Only verify that we don't overcommit on need */ - /* Retrieve the memory occupied by the VMs on that host. Yep, we have to traverse all VMs of all hosts for that */ - long total_ramsize_of_vms = 0; - for (simgrid::s4u::VirtualMachine* ws_vm : simgrid::vm::VirtualMachineImpl::allVms_) - if (pm == ws_vm->pimpl_vm_->getPm()) - total_ramsize_of_vms += ws_vm->pimpl_vm_->getRamsize(); - - if (vm_ramsize > pm_ramsize - total_ramsize_of_vms) { - XBT_WARN("cannnot start %s@%s due to memory shortage: vm_ramsize %ld, free %ld, pm_ramsize %ld (bytes).", - vm->cname(), pm->cname(), vm_ramsize, pm_ramsize - total_ramsize_of_vms, pm_ramsize); - THROWF(vm_error, 0, "Memory shortage on host '%s', VM '%s' cannot be started", pm->cname(), vm->cname()); - } - } - - typedVM->pimpl_vm_->setState(SURF_VM_STATE_RUNNING); - }); - + vm->start(); if (TRACE_msg_vm_is_enabled()) { - container_t vm_container = PJ_container_get(vm->cname()); - type_t type = PJ_type_get("MSG_VM_STATE", vm_container->type); - val_t value = PJ_value_get_or_new("start", "0 0 1", type); // start is blue - new_pajePushState(MSG_get_clock(), vm_container, type, value); + simgrid::instr::StateType* state = simgrid::instr::Container::byName(vm->getName())->getState("MSG_VM_STATE"); + state->addEntityValue("start", "0 0 1"); // start is blue + state->pushEvent("start"); } } @@ -216,29 +203,27 @@ void MSG_vm_start(msg_vm_t vm) */ void MSG_vm_shutdown(msg_vm_t vm) { - smx_actor_t issuer=SIMIX_process_self(); - simgrid::simix::kernelImmediate([vm,issuer]() { - static_cast(vm)->pimpl_vm_->shutdown(issuer); - }); + smx_actor_t issuer = SIMIX_process_self(); + simgrid::simix::kernelImmediate([vm, issuer]() { vm->pimpl_vm_->shutdown(issuer); }); - // Make sure that the processes in the VM are killed in this scheduling round before processing - // (eg with the VM destroy) + // Make sure that processes in the VM are killed in this scheduling round before processing (eg with the VM destroy) MSG_process_sleep(0.); } -static inline char *get_mig_process_tx_name(msg_vm_t vm, msg_host_t src_pm, msg_host_t dst_pm) +static std::string get_mig_process_tx_name(msg_vm_t vm, msg_host_t src_pm, msg_host_t dst_pm) { - return bprintf("__pr_mig_tx:%s(%s-%s)", vm->cname(), src_pm->cname(), dst_pm->cname()); + return std::string("__pr_mig_tx:") + vm->getCname() + "(" + src_pm->getCname() + "-" + dst_pm->getCname() + ")"; } -static inline char *get_mig_process_rx_name(msg_vm_t vm, msg_host_t src_pm, msg_host_t dst_pm) +static std::string get_mig_process_rx_name(msg_vm_t vm, msg_host_t src_pm, msg_host_t dst_pm) { - return bprintf("__pr_mig_rx:%s(%s-%s)", vm->cname(), src_pm->cname(), dst_pm->cname()); + return std::string("__pr_mig_rx:") + vm->getCname() + "(" + src_pm->getCname() + "-" + dst_pm->getCname() + ")"; } -static inline char *get_mig_task_name(msg_vm_t vm, msg_host_t src_pm, msg_host_t dst_pm, int stage) +static std::string get_mig_task_name(msg_vm_t vm, msg_host_t src_pm, msg_host_t dst_pm, int stage) { - return bprintf("__task_mig_stage%d:%s(%s-%s)", stage, vm->cname(), src_pm->cname(), dst_pm->cname()); + return std::string("__task_mig_stage") + std::to_string(stage) + ":" + vm->getCname() + "(" + src_pm->getCname() + + "-" + dst_pm->getCname() + ")"; } struct migration_session { @@ -248,9 +233,9 @@ struct migration_session { /* The miration_rx process uses mbox_ctl to let the caller of do_migration() * know the completion of the migration. */ - char *mbox_ctl; + std::string mbox_ctl; /* The migration_rx and migration_tx processes use mbox to transfer migration data. */ - char *mbox; + std::string mbox; }; static int migration_rx_fun(int argc, char *argv[]) @@ -258,28 +243,26 @@ static int migration_rx_fun(int argc, char *argv[]) XBT_DEBUG("mig: rx_start"); // The structure has been created in the do_migration function and should only be freed in the same place ;) - struct migration_session *ms = (migration_session *) MSG_process_get_data(MSG_process_self()); + migration_session* ms = static_cast(MSG_process_get_data(MSG_process_self())); bool received_finalize = false; - char *finalize_task_name = get_mig_task_name(ms->vm, ms->src_pm, ms->dst_pm, 3); - while (!received_finalize) { + std::string finalize_task_name = get_mig_task_name(ms->vm, ms->src_pm, ms->dst_pm, 3); + while (not received_finalize) { msg_task_t task = nullptr; - int ret = MSG_task_recv(&task, ms->mbox); + int ret = MSG_task_recv(&task, ms->mbox.c_str()); if (ret != MSG_OK) { // An error occurred, clean the code and return // The owner did not change, hence the task should be only destroyed on the other side - xbt_free(finalize_task_name); return 0; } - if (strcmp(task->name, finalize_task_name) == 0) + if (finalize_task_name == task->name) received_finalize = 1; MSG_task_destroy(task); } - xbt_free(finalize_task_name); // Here Stage 1, 2 and 3 have been performed. // Hence complete the migration @@ -287,12 +270,11 @@ static int migration_rx_fun(int argc, char *argv[]) // Copy the reference to the vm (if SRC crashes now, do_migration will free ms) // This is clearly ugly but I (Adrien) need more time to do something cleaner (actually we should copy the whole ms // structure at the beginning and free it at the end of each function) - simgrid::s4u::VirtualMachine* vm = static_cast(ms->vm); - msg_host_t src_pm = ms->src_pm; + simgrid::s4u::VirtualMachine* vm = ms->vm; msg_host_t dst_pm = ms->dst_pm; // Make sure that we cannot get interrupted between the migrate and the resume to not end in an inconsistent state - simgrid::simix::kernelImmediate([vm, src_pm, dst_pm]() { + simgrid::simix::kernelImmediate([vm, dst_pm]() { /* Update the vm location */ /* precopy migration makes the VM temporally paused */ xbt_assert(vm->pimpl_vm_->getState() == SURF_VM_STATE_SUSPENDED); @@ -302,51 +284,45 @@ static int migration_rx_fun(int argc, char *argv[]) vm->pimpl_vm_->resume(); }); - { - // Now the VM is running on the new host (the migration is completed) (even if the SRC crash) - vm->pimpl_vm_->isMigrating = false; - XBT_DEBUG("VM(%s) moved from PM(%s) to PM(%s)", ms->vm->cname(), ms->src_pm->cname(), ms->dst_pm->cname()); - - if (TRACE_msg_vm_is_enabled()) { - static long long int counter = 0; - char key[INSTR_DEFAULT_STR_SIZE]; - snprintf(key, INSTR_DEFAULT_STR_SIZE, "%lld", counter++); - - // start link - container_t msg = PJ_container_get(vm->cname()); - type_t type = PJ_type_get("MSG_VM_LINK", PJ_type_get_root()); - new_pajeStartLink(MSG_get_clock(), PJ_container_get_root(), type, msg, "M", key); - - // destroy existing container of this vm - container_t existing_container = PJ_container_get(vm->cname()); - PJ_container_remove_from_parent(existing_container); - PJ_container_free(existing_container); - - // create new container on the new_host location - PJ_container_new(vm->cname(), INSTR_MSG_VM, PJ_container_get(ms->dst_pm->cname())); - - // end link - msg = PJ_container_get(vm->cname()); - type = PJ_type_get("MSG_VM_LINK", PJ_type_get_root()); - new_pajeEndLink(MSG_get_clock(), PJ_container_get_root(), type, msg, "M", key); - } + + // Now the VM is running on the new host (the migration is completed) (even if the SRC crash) + vm->pimpl_vm_->isMigrating = false; + XBT_DEBUG("VM(%s) moved from PM(%s) to PM(%s)", ms->vm->getCname(), ms->src_pm->getCname(), ms->dst_pm->getCname()); + + if (TRACE_msg_vm_is_enabled()) { + static long long int counter = 0; + std::string key = std::to_string(counter); + counter++; + + // start link + container_t msg = simgrid::instr::Container::byName(vm->getName()); + simgrid::instr::Container::getRoot()->getLink("MSG_VM_LINK")->startEvent(msg, "M", key); + + // destroy existing container of this vm + container_t existing_container = simgrid::instr::Container::byName(vm->getName()); + existing_container->removeFromParent(); + delete existing_container; + + // create new container on the new_host location + new simgrid::instr::Container(vm->getCname(), "MSG_VM", simgrid::instr::Container::byName(ms->dst_pm->getName())); + + // end link + msg = simgrid::instr::Container::byName(vm->getName()); + simgrid::instr::Container::getRoot()->getLink("MSG_VM_LINK")->endEvent(msg, "M", key); } + // Inform the SRC that the migration has been correctly performed - { - char *task_name = get_mig_task_name(ms->vm, ms->src_pm, ms->dst_pm, 4); - msg_task_t task = MSG_task_create(task_name, 0, 0, nullptr); - msg_error_t ret = MSG_task_send(task, ms->mbox_ctl); - // xbt_assert(ret == MSG_OK); - if(ret == MSG_HOST_FAILURE){ - // The DST has crashed, this is a problem has the VM since we are not sure whether SRC is considering that the VM - // has been correctly migrated on the DST node - // TODO What does it mean ? What should we do ? - MSG_task_destroy(task); - } else if(ret == MSG_TRANSFER_FAILURE){ - // The SRC has crashed, this is not a problem has the VM has been correctly migrated on the DST node - MSG_task_destroy(task); - } - xbt_free(task_name); + std::string task_name = get_mig_task_name(ms->vm, ms->src_pm, ms->dst_pm, 4); + msg_task_t task = MSG_task_create(task_name.c_str(), 0, 0, nullptr); + msg_error_t ret = MSG_task_send(task, ms->mbox_ctl.c_str()); + if(ret == MSG_HOST_FAILURE){ + // The DST has crashed, this is a problem has the VM since we are not sure whether SRC is considering that the VM + // has been correctly migrated on the DST node + // TODO What does it mean ? What should we do ? + MSG_task_destroy(task); + } else if(ret == MSG_TRANSFER_FAILURE){ + // The SRC has crashed, this is not a problem has the VM has been correctly migrated on the DST node + MSG_task_destroy(task); } XBT_DEBUG("mig: rx_done"); @@ -355,35 +331,30 @@ static int migration_rx_fun(int argc, char *argv[]) static void start_dirty_page_tracking(msg_vm_t vm) { - simgrid::vm::VirtualMachineImpl* pimpl = static_cast(vm)->pimpl_vm_; - - pimpl->dp_enabled = 1; - if (!pimpl->dp_objs) + vm->pimpl_vm_->dp_enabled = 1; + if (vm->pimpl_vm_->dp_objs.empty()) return; - char *key = nullptr; - xbt_dict_cursor_t cursor = nullptr; - dirty_page_t dp = nullptr; - xbt_dict_foreach (pimpl->dp_objs, cursor, key, dp) { - double remaining = MSG_task_get_flops_amount(dp->task); + for (auto const& elm : vm->pimpl_vm_->dp_objs) { + dirty_page_t dp = elm.second; + double remaining = MSG_task_get_remaining_work_ratio(dp->task); dp->prev_clock = MSG_get_clock(); dp->prev_remaining = remaining; - - // XBT_INFO("%s@%s remaining %f", key, sg_host_name(vm), remaining); + XBT_DEBUG("%s@%s remaining %f", elm.first.c_str(), vm->getCname(), remaining); } } static void stop_dirty_page_tracking(msg_vm_t vm) { - static_cast(vm)->pimpl_vm_->dp_enabled = 0; + vm->pimpl_vm_->dp_enabled = 0; } -static double get_computed(char *key, msg_vm_t vm, dirty_page_t dp, double remaining, double clock) +static double get_computed(const std::string& key, msg_vm_t vm, dirty_page_t dp, double remaining, double clock) { double computed = dp->prev_remaining - remaining; double duration = clock - dp->prev_clock; - XBT_DEBUG("%s@%s: computed %f ops (remaining %f -> %f) in %f secs (%f -> %f)", key, vm->cname(), computed, + XBT_DEBUG("%s@%s: computed %f ops (remaining %f -> %f) in %f secs (%f -> %f)", key.c_str(), vm->getCname(), computed, dp->prev_remaining, remaining, duration, dp->prev_clock, clock); return computed; @@ -391,30 +362,27 @@ static double get_computed(char *key, msg_vm_t vm, dirty_page_t dp, double remai static double lookup_computed_flop_counts(msg_vm_t vm, int stage_for_fancy_debug, int stage2_round_for_fancy_debug) { - simgrid::vm::VirtualMachineImpl* pimpl = static_cast(vm)->pimpl_vm_; double total = 0; - char *key = nullptr; - xbt_dict_cursor_t cursor = nullptr; - dirty_page_t dp = nullptr; - xbt_dict_foreach (pimpl->dp_objs, cursor, key, dp) { - double remaining = MSG_task_get_flops_amount(dp->task); + for (auto const& elm : vm->pimpl_vm_->dp_objs) { + const std::string& key = elm.first; + dirty_page_t dp = elm.second; + double remaining = MSG_task_get_remaining_work_ratio(dp->task); double clock = MSG_get_clock(); - // total += calc_updated_pages(key, vm, dp, remaining, clock); total += get_computed(key, vm, dp, remaining, clock); dp->prev_remaining = remaining; dp->prev_clock = clock; } - total += pimpl->dp_updated_by_deleted_tasks; + total += vm->pimpl_vm_->dp_updated_by_deleted_tasks; XBT_DEBUG("mig-stage%d.%d: computed %f flop_counts (including %f by deleted tasks)", stage_for_fancy_debug, - stage2_round_for_fancy_debug, total, pimpl->dp_updated_by_deleted_tasks); + stage2_round_for_fancy_debug, total, vm->pimpl_vm_->dp_updated_by_deleted_tasks); - pimpl->dp_updated_by_deleted_tasks = 0; + vm->pimpl_vm_->dp_updated_by_deleted_tasks = 0; return total; } @@ -427,24 +395,19 @@ void MSG_host_add_task(msg_host_t host, msg_task_t task) simgrid::s4u::VirtualMachine* vm = dynamic_cast(host); if (vm == nullptr) return; - simgrid::vm::VirtualMachineImpl* pimpl = static_cast(vm)->pimpl_vm_; - double remaining = MSG_task_get_flops_amount(task); - char *key = bprintf("%s-%p", task->name, task); + double remaining = MSG_task_get_initial_flops_amount(task); + std::string key = simgrid::xbt::string_printf("%s-%p", task->name, task); - dirty_page_t dp = xbt_new0(s_dirty_page, 1); + dirty_page_t dp = new s_dirty_page; dp->task = task; - if (pimpl->dp_enabled) { + if (vm->pimpl_vm_->dp_enabled) { dp->prev_clock = MSG_get_clock(); dp->prev_remaining = remaining; } - if (!pimpl->dp_objs) - pimpl->dp_objs = xbt_dict_new_homogeneous(nullptr); - xbt_assert(xbt_dict_get_or_null(pimpl->dp_objs, key) == nullptr); - xbt_dict_set(pimpl->dp_objs, key, dp, nullptr); - XBT_DEBUG("add %s on %s (remaining %f, dp_enabled %d)", key, host->cname(), remaining, pimpl->dp_enabled); - - xbt_free(key); + vm->pimpl_vm_->dp_objs.insert({key, dp}); + XBT_DEBUG("add %s on %s (remaining %f, dp_enabled %d)", key.c_str(), host->getCname(), remaining, + vm->pimpl_vm_->dp_enabled); } void MSG_host_del_task(msg_host_t host, msg_task_t task) @@ -452,66 +415,63 @@ void MSG_host_del_task(msg_host_t host, msg_task_t task) simgrid::s4u::VirtualMachine* vm = dynamic_cast(host); if (vm == nullptr) return; - simgrid::vm::VirtualMachineImpl* pimpl = static_cast(vm)->pimpl_vm_; - char *key = bprintf("%s-%p", task->name, task); - dirty_page_t dp = (dirty_page_t)(pimpl->dp_objs ? xbt_dict_get_or_null(pimpl->dp_objs, key) : NULL); - xbt_assert(dp->task == task); + std::string key = simgrid::xbt::string_printf("%s-%p", task->name, task); + dirty_page_t dp = nullptr; + auto dp_obj = vm->pimpl_vm_->dp_objs.find(key); + if (dp_obj != vm->pimpl_vm_->dp_objs.end()) + dp = dp_obj->second; + xbt_assert(dp && dp->task == task); /* If we are in the middle of dirty page tracking, we record how much computation has been done until now, and keep * the information for the lookup_() function that will called soon. */ - if (pimpl->dp_enabled) { - double remaining = MSG_task_get_flops_amount(task); + if (vm->pimpl_vm_->dp_enabled) { + double remaining = MSG_task_get_remaining_work_ratio(task); double clock = MSG_get_clock(); - // double updated = calc_updated_pages(key, host, dp, remaining, clock); - double updated = get_computed(key, host, dp, remaining, clock); + double updated = get_computed(key, vm, dp, remaining, clock); // was host instead of vm - pimpl->dp_updated_by_deleted_tasks += updated; + vm->pimpl_vm_->dp_updated_by_deleted_tasks += updated; } - if (pimpl->dp_objs) - xbt_dict_remove(pimpl->dp_objs, key); - xbt_free(dp); - XBT_DEBUG("del %s on %s", key, host->cname()); - xbt_free(key); + vm->pimpl_vm_->dp_objs.erase(key); + delete dp; + + XBT_DEBUG("del %s on %s", key.c_str(), host->getCname()); } -static sg_size_t send_migration_data(msg_vm_t vm, msg_host_t src_pm, msg_host_t dst_pm, sg_size_t size, char* mbox, - int stage, int stage2_round, double mig_speed, double timeout) +static sg_size_t send_migration_data(msg_vm_t vm, msg_host_t src_pm, msg_host_t dst_pm, sg_size_t size, + const std::string& mbox, int stage, int stage2_round, double mig_speed, + double timeout) { sg_size_t sent = 0; - char *task_name = get_mig_task_name(vm, src_pm, dst_pm, stage); - msg_task_t task = MSG_task_create(task_name, 0, (double)size, nullptr); - - /* TODO: clean up */ + std::string task_name = get_mig_task_name(vm, src_pm, dst_pm, stage); + msg_task_t task = MSG_task_create(task_name.c_str(), 0, static_cast(size), nullptr); double clock_sta = MSG_get_clock(); msg_error_t ret; if (mig_speed > 0) - ret = MSG_task_send_with_timeout_bounded(task, mbox, timeout, mig_speed); + ret = MSG_task_send_with_timeout_bounded(task, mbox.c_str(), timeout, mig_speed); else - ret = MSG_task_send(task, mbox); - - xbt_free(task_name); + ret = MSG_task_send(task, mbox.c_str()); if (ret == MSG_OK) { sent = size; } else if (ret == MSG_TIMEOUT) { - sg_size_t remaining = (sg_size_t)MSG_task_get_remaining_communication(task); + sg_size_t remaining = static_cast(MSG_task_get_remaining_communication(task)); sent = size - remaining; XBT_VERB("timeout (%lf s) in sending_migration_data, remaining %llu bytes of %llu", timeout, remaining, size); } /* FIXME: why try-and-catch is used here? */ if(ret == MSG_HOST_FAILURE){ - //XBT_DEBUG("SRC host failed during migration of %s (stage %d)", sg_host_name(vm), stage); + XBT_DEBUG("SRC host failed during migration of %s (stage %d)", vm->getCname(), stage); MSG_task_destroy(task); - THROWF(host_error, 0, "SRC host failed during migration of %s (stage %d)", vm->cname(), stage); + THROWF(host_error, 0, "SRC host failed during migration of %s (stage %d)", vm->getCname(), stage); }else if(ret == MSG_TRANSFER_FAILURE){ - //XBT_DEBUG("DST host failed during migration of %s (stage %d)", sg_host_name(vm), stage); + XBT_DEBUG("DST host failed during migration of %s (stage %d)", vm->getCname(), stage); MSG_task_destroy(task); - THROWF(host_error, 0, "DST host failed during migration of %s (stage %d)", vm->cname(), stage); + THROWF(host_error, 0, "DST host failed during migration of %s (stage %d)", vm->getCname(), stage); } double clock_end = MSG_get_clock(); @@ -533,12 +493,10 @@ static sg_size_t get_updated_size(double computed, double dp_rate, double dp_cap double updated_size = computed * dp_rate; XBT_DEBUG("updated_size %f dp_rate %f", updated_size, dp_rate); if (updated_size > dp_cap) { - // XBT_INFO("mig-stage2.%d: %f bytes updated, but cap it with the working set size %f", stage2_round, updated_size, - // dp_cap); updated_size = dp_cap; } - return (sg_size_t) updated_size; + return static_cast(updated_size); } static int migration_tx_fun(int argc, char *argv[]) @@ -546,22 +504,23 @@ static int migration_tx_fun(int argc, char *argv[]) XBT_DEBUG("mig: tx_start"); // Note that the ms structure has been allocated in do_migration and hence should be freed in the same function ;) - migration_session *ms = (migration_session *) MSG_process_get_data(MSG_process_self()); + migration_session* ms = static_cast(MSG_process_get_data(MSG_process_self())); + double host_speed = ms->vm->pimpl_vm_->getPm()->getSpeed(); s_vm_params_t params; - static_cast(ms->vm)->parameters(¶ms); + ms->vm->getParameters(¶ms); const sg_size_t ramsize = params.ramsize; const sg_size_t devsize = params.devsize; const int skip_stage1 = params.skip_stage1; int skip_stage2 = params.skip_stage2; - const double dp_rate = params.dp_rate; + const double dp_rate = host_speed ? (params.mig_speed * params.dp_intensity) / host_speed : 1; const double dp_cap = params.dp_cap; const double mig_speed = params.mig_speed; double max_downtime = params.max_downtime; double mig_timeout = 10000000.0; - double remaining_size = (double) (ramsize + devsize); + double remaining_size = static_cast(ramsize + devsize); double threshold = 0.0; /* check parameters */ @@ -578,13 +537,13 @@ static int migration_tx_fun(int argc, char *argv[]) start_dirty_page_tracking(ms->vm); double computed_during_stage1 = 0; - if (!skip_stage1) { + if (not skip_stage1) { double clock_prev_send = MSG_get_clock(); try { /* At stage 1, we do not need timeout. We have to send all the memory pages even though the duration of this * transfer exceeds the timeout value. */ - XBT_VERB("Stage 1: Gonna send %llu", ramsize); + XBT_VERB("Stage 1: Gonna send %llu bytes", ramsize); sg_size_t sent = send_migration_data(ms->vm, ms->src_pm, ms->dst_pm, ramsize, ms->mbox, 1, 0, mig_speed, -1); remaining_size -= sent; computed_during_stage1 = lookup_computed_flop_counts(ms->vm, 1, 0); @@ -618,7 +577,7 @@ static int migration_tx_fun(int argc, char *argv[]) /* Stage2: send update pages iteratively until the size of remaining states becomes smaller than threshold value. */ - if (!skip_stage2) { + if (not skip_stage2) { int stage2_round = 0; for (;;) { @@ -685,20 +644,21 @@ static int migration_tx_fun(int argc, char *argv[]) /* Stage3: stop the VM and copy the rest of states. */ XBT_DEBUG("mig-stage3: remaining_size %f", remaining_size); - simgrid::vm::VirtualMachineImpl* pimpl = static_cast(ms->vm)->pimpl_vm_; + simgrid::vm::VirtualMachineImpl* pimpl = ms->vm->pimpl_vm_; pimpl->setState(SURF_VM_STATE_RUNNING); // FIXME: this bypass of the checks in suspend() is not nice pimpl->isMigrating = false; // FIXME: this bypass of the checks in suspend() is not nice pimpl->suspend(SIMIX_process_self()); stop_dirty_page_tracking(ms->vm); try { - XBT_DEBUG("Stage 3: Gonna send %f", remaining_size); - send_migration_data(ms->vm, ms->src_pm, ms->dst_pm, (sg_size_t)remaining_size, ms->mbox, 3, 0, mig_speed, -1); + XBT_DEBUG("Stage 3: Gonna send %f bytes", remaining_size); + send_migration_data(ms->vm, ms->src_pm, ms->dst_pm, static_cast(remaining_size), ms->mbox, 3, 0, + mig_speed, -1); } catch(xbt_ex& e) { //hostfailure (if you want to know whether this is the SRC or the DST check directly in send_migration_data code) // Stop the dirty page tracking an return (there is no memory space to release) - static_cast(ms->vm)->pimpl_vm_->resume(); + ms->vm->pimpl_vm_->resume(); return 0; } @@ -730,56 +690,44 @@ void MSG_vm_migrate(msg_vm_t vm, msg_host_t dst_pm) * The second one would be easier. */ - simgrid::s4u::VirtualMachine* typedVm = static_cast(vm); - simgrid::vm::VirtualMachineImpl* pimpl = typedVm->pimpl_vm_; - msg_host_t src_pm = pimpl->getPm(); + msg_host_t src_pm = vm->pimpl_vm_->getPm(); if (src_pm->isOff()) - THROWF(vm_error, 0, "Cannot migrate VM '%s' from host '%s', which is offline.", vm->cname(), src_pm->cname()); + THROWF(vm_error, 0, "Cannot migrate VM '%s' from host '%s', which is offline.", vm->getCname(), src_pm->getCname()); if (dst_pm->isOff()) - THROWF(vm_error, 0, "Cannot migrate VM '%s' to host '%s', which is offline.", vm->cname(), dst_pm->cname()); - if (!MSG_vm_is_running(vm)) - THROWF(vm_error, 0, "Cannot migrate VM '%s' that is not running yet.", vm->cname()); - if (typedVm->isMigrating()) - THROWF(vm_error, 0, "Cannot migrate VM '%s' that is already migrating.", vm->cname()); + THROWF(vm_error, 0, "Cannot migrate VM '%s' to host '%s', which is offline.", vm->getCname(), dst_pm->getCname()); + if (not MSG_vm_is_running(vm)) + THROWF(vm_error, 0, "Cannot migrate VM '%s' that is not running yet.", vm->getCname()); + if (vm->isMigrating()) + THROWF(vm_error, 0, "Cannot migrate VM '%s' that is already migrating.", vm->getCname()); - pimpl->isMigrating = true; + vm->pimpl_vm_->isMigrating = true; - struct migration_session *ms = xbt_new(struct migration_session, 1); - ms->vm = vm; - ms->src_pm = src_pm; - ms->dst_pm = dst_pm; + migration_session ms; + ms.vm = vm; + ms.src_pm = src_pm; + ms.dst_pm = dst_pm; /* We have two mailboxes. mbox is used to transfer migration data between source and destination PMs. mbox_ctl is used * to detect the completion of a migration. The names of these mailboxes must not conflict with others. */ - ms->mbox_ctl = bprintf("__mbox_mig_ctl:%s(%s-%s)", vm->cname(), src_pm->cname(), dst_pm->cname()); - ms->mbox = bprintf("__mbox_mig_src_dst:%s(%s-%s)", vm->cname(), src_pm->cname(), dst_pm->cname()); + ms.mbox_ctl = + simgrid::xbt::string_printf("__mbox_mig_ctl:%s(%s-%s)", vm->getCname(), src_pm->getCname(), dst_pm->getCname()); + ms.mbox = simgrid::xbt::string_printf("__mbox_mig_src_dst:%s(%s-%s)", vm->getCname(), src_pm->getCname(), + dst_pm->getCname()); - char *pr_rx_name = get_mig_process_rx_name(vm, src_pm, dst_pm); - char *pr_tx_name = get_mig_process_tx_name(vm, src_pm, dst_pm); + std::string pr_rx_name = get_mig_process_rx_name(vm, src_pm, dst_pm); + std::string pr_tx_name = get_mig_process_tx_name(vm, src_pm, dst_pm); - char** argv = xbt_new(char*, 2); - argv[0] = pr_rx_name; - argv[1] = nullptr; - MSG_process_create_with_arguments(pr_rx_name, migration_rx_fun, ms, dst_pm, 1, argv); + MSG_process_create(pr_rx_name.c_str(), migration_rx_fun, &ms, dst_pm); - argv = xbt_new(char*, 2); - argv[0] = pr_tx_name; - argv[1] = nullptr; - MSG_process_create_with_arguments(pr_tx_name, migration_tx_fun, ms, src_pm, 1, argv); + MSG_process_create(pr_tx_name.c_str(), migration_tx_fun, &ms, src_pm); /* wait until the migration have finished or on error has occurred */ XBT_DEBUG("wait for reception of the final ACK (i.e. migration has been correctly performed"); msg_task_t task = nullptr; - msg_error_t ret = MSG_TIMEOUT; - while (ret == MSG_TIMEOUT && dst_pm->isOn()) // The rx will tell me when he gots the VM - ret = MSG_task_receive_with_timeout(&task, ms->mbox_ctl, 4); - - pimpl->isMigrating = false; + msg_error_t ret = MSG_task_receive(&task, ms.mbox_ctl.c_str()); - xbt_free(ms->mbox_ctl); - xbt_free(ms->mbox); - xbt_free(ms); + vm->pimpl_vm_->isMigrating = false; if (ret == MSG_HOST_FAILURE) { // Note that since the communication failed, the owner did not change and the task should be destroyed on the @@ -787,17 +735,16 @@ void MSG_vm_migrate(msg_vm_t vm, msg_host_t dst_pm) XBT_ERROR("SRC crashes, throw an exception (m-control)"); // MSG_process_kill(tx_process); // Adrien, I made a merge on Nov 28th 2014, I'm not sure whether this line is // required or not - THROWF(host_error, 0, "Source host '%s' failed during the migration of VM '%s'.", src_pm->cname(), vm->cname()); + THROWF(host_error, 0, "Source host '%s' failed during the migration of VM '%s'.", src_pm->getCname(), + vm->getCname()); } else if ((ret == MSG_TRANSFER_FAILURE) || (ret == MSG_TIMEOUT)) { // MSG_TIMEOUT here means that MSG_host_is_avail() returned false. XBT_ERROR("DST crashes, throw an exception (m-control)"); - THROWF(host_error, 0, "Destination host '%s' failed during the migration of VM '%s'.", dst_pm->cname(), - vm->cname()); + THROWF(host_error, 0, "Destination host '%s' failed during the migration of VM '%s'.", dst_pm->getCname(), + vm->getCname()); } - char* expected_task_name = get_mig_task_name(vm, src_pm, dst_pm, 4); - xbt_assert(strcmp(task->name, expected_task_name) == 0); - xbt_free(expected_task_name); + xbt_assert(get_mig_task_name(vm, src_pm, dst_pm, 4) == task->name); MSG_task_destroy(task); } @@ -812,17 +759,14 @@ void MSG_vm_migrate(msg_vm_t vm, msg_host_t dst_pm) void MSG_vm_suspend(msg_vm_t vm) { smx_actor_t issuer = SIMIX_process_self(); - simgrid::simix::kernelImmediate([vm,issuer]() { - static_cast(vm)->pimpl_vm_->suspend(issuer); - }); + simgrid::simix::kernelImmediate([vm, issuer]() { vm->pimpl_vm_->suspend(issuer); }); XBT_DEBUG("vm_suspend done"); if (TRACE_msg_vm_is_enabled()) { - container_t vm_container = PJ_container_get(vm->cname()); - type_t type = PJ_type_get("MSG_VM_STATE", vm_container->type); - val_t value = PJ_value_get_or_new("suspend", "1 0 0", type); // suspend is red - new_pajePushState(MSG_get_clock(), vm_container, type, value); + simgrid::instr::StateType* state = simgrid::instr::Container::byName(vm->getName())->getState("MSG_VM_STATE"); + state->addEntityValue("suspend", "1 0 0"); // suspend is red + state->pushEvent("suspend"); } } @@ -833,13 +777,10 @@ void MSG_vm_suspend(msg_vm_t vm) */ void MSG_vm_resume(msg_vm_t vm) { - static_cast(vm)->pimpl_vm_->resume(); + vm->pimpl_vm_->resume(); - if (TRACE_msg_vm_is_enabled()) { - container_t vm_container = PJ_container_get(vm->cname()); - type_t type = PJ_type_get("MSG_VM_STATE", vm_container->type); - new_pajePopState(MSG_get_clock(), vm_container, type); - } + if (TRACE_msg_vm_is_enabled()) + simgrid::instr::Container::byName(vm->getName())->getState("MSG_VM_STATE")->popEvent(); } /** @brief Get the physical host of a given VM. @@ -847,7 +788,7 @@ void MSG_vm_resume(msg_vm_t vm) */ msg_host_t MSG_vm_get_pm(msg_vm_t vm) { - return static_cast(vm)->pm(); + return vm->getPm(); } /** @brief Set a CPU bound for a given VM. @@ -878,6 +819,6 @@ msg_host_t MSG_vm_get_pm(msg_vm_t vm) */ void MSG_vm_set_bound(msg_vm_t vm, double bound) { - simgrid::simix::kernelImmediate( - [vm, bound]() { static_cast(vm)->pimpl_vm_->setBound(bound); }); + simgrid::simix::kernelImmediate([vm, bound]() { vm->pimpl_vm_->setBound(bound); }); +} }