#include "simgrid/host.h"
#include "simgrid/simix.hpp"
+#include "xbt/string.hpp"
extern "C" {
struct s_dirty_page {
- double prev_clock;
- double prev_remaining;
- msg_task_t task;
+ double prev_clock = 0.0;
+ double prev_remaining = 0.0;
+ msg_task_t task = nullptr;
};
typedef s_dirty_page* dirty_page_t;
/* 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[])
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
// Inform the SRC that the migration has been correctly performed
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);
+ 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
for (auto const& elm : vm->pimpl_vm_->dp_objs) {
dirty_page_t dp = elm.second;
- double remaining = MSG_task_get_flops_amount(dp->task);
+ double remaining = MSG_task_get_remaining_work_ratio(dp->task);
dp->prev_clock = MSG_get_clock();
dp->prev_remaining = remaining;
XBT_DEBUG("%s@%s remaining %f", elm.first.c_str(), vm->getCname(), remaining);
vm->pimpl_vm_->dp_enabled = 0;
}
-static double get_computed(const 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->getCname(), 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;
double total = 0;
for (auto const& elm : vm->pimpl_vm_->dp_objs) {
- const char* key = elm.first.c_str();
+ const std::string& key = elm.first;
dirty_page_t dp = elm.second;
- double remaining = MSG_task_get_flops_amount(dp->task);
+ double remaining = MSG_task_get_remaining_work_ratio(dp->task);
double clock = MSG_get_clock();
if (vm == nullptr)
return;
- 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 (vm->pimpl_vm_->dp_enabled) {
dp->prev_clock = MSG_get_clock();
dp->prev_remaining = remaining;
}
vm->pimpl_vm_->dp_objs.insert({key, dp});
- XBT_DEBUG("add %s on %s (remaining %f, dp_enabled %d)", key, host->getCname(), remaining, vm->pimpl_vm_->dp_enabled);
-
- xbt_free(key);
+ 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)
if (vm == nullptr)
return;
- char *key = bprintf("%s-%p", task->name, task);
+ std::string key = simgrid::xbt::string_printf("%s-%p", task->name, task);
dirty_page_t dp = nullptr;
- if (vm->pimpl_vm_->dp_objs.find(key) != vm->pimpl_vm_->dp_objs.end())
- dp = vm->pimpl_vm_->dp_objs.at(key);
+ 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 (vm->pimpl_vm_->dp_enabled) {
- double remaining = MSG_task_get_flops_amount(task);
+ double remaining = MSG_task_get_remaining_work_ratio(task);
double clock = MSG_get_clock();
double updated = get_computed(key, vm, dp, remaining, clock); // was host instead of vm
}
vm->pimpl_vm_->dp_objs.erase(key);
- xbt_free(dp);
+ delete dp;
- XBT_DEBUG("del %s on %s", key, host->getCname());
- xbt_free(key);
+ 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;
std::string task_name = get_mig_task_name(vm, src_pm, dst_pm, stage);
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);
+ ret = MSG_task_send(task, mbox.c_str());
if (ret == MSG_OK) {
sent = size;
vm->pimpl_vm_->isMigrating = true;
- migration_session* ms = xbt_new(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->getCname(), src_pm->getCname(), dst_pm->getCname());
- ms->mbox = bprintf("__mbox_mig_src_dst:%s(%s-%s)", vm->getCname(), src_pm->getCname(), dst_pm->getCname());
+ 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());
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);
- MSG_process_create(pr_rx_name.c_str(), migration_rx_fun, ms, dst_pm);
+ MSG_process_create(pr_rx_name.c_str(), migration_rx_fun, &ms, dst_pm);
- MSG_process_create(pr_tx_name.c_str(), migration_tx_fun, ms, src_pm);
+ 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_task_receive(&task, ms->mbox_ctl);
+ msg_error_t ret = MSG_task_receive(&task, ms.mbox_ctl.c_str());
vm->pimpl_vm_->isMigrating = false;
- xbt_free(ms->mbox_ctl);
- xbt_free(ms->mbox);
- xbt_free(ms);
-
if (ret == MSG_HOST_FAILURE) {
// Note that since the communication failed, the owner did not change and the task should be destroyed on the
// other side. Hence, just throw the execption
