msg_vm_t MSG_vm_get_by_name(const char *name)
{
- return MSG_get_host_by_name(name);
+ return MSG_get_host_by_name(name);
}
/** \ingroup m_vm_management
char *finalize_task_name = get_mig_task_name(ms->vm, ms->src_pm, ms->dst_pm, 3);
- int ret = 0;
+ int ret = 0;
for (;;) {
msg_task_t task = NULL;
ret = MSG_task_recv(&task, ms->mbox);
break;
}
- // Here Stage 1, 2 and 3 have been performed.
+ // Here Stage 1, 2 and 3 have been performed.
// Hence complete the migration
// 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 begining and free it at the end of each function)
- msg_vm_t vm = ms->vm;
- msg_host_t src_pm = ms->src_pm;
- msg_host_t dst_pm = ms-> dst_pm;
+ msg_vm_t vm = ms->vm;
+ msg_host_t src_pm = ms->src_pm;
+ msg_host_t dst_pm = ms-> dst_pm;
msg_host_priv_t priv = msg_host_resource_priv(vm);
// TODO: we have an issue, if the DST node is turning off during the three next calls, then the VM is in an inconsistent state
/* Update the vm location */
simcall_vm_migrate(vm, dst_pm);
-
+
/* Resume the VM */
simcall_vm_resume(vm);
#ifdef HAVE_TRACING
TRACE_msg_vm_change_host(ms->vm, ms->src_pm, ms->dst_pm);
#endif
-
+
}
// Inform the SRC that the migration has been correctly performed
{
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);
+ // 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);
- }
+ // 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);
}
xbt_dict_foreach(priv->dp_objs, cursor, key, dp) {
double remaining = MSG_task_get_remaining_computation(dp->task);
- double clock = MSG_get_clock();
+ double clock = MSG_get_clock();
// total += calc_updated_pages(key, vm, dp, remaining, clock);
total += get_computed(key, vm, dp, remaining, clock);
else
ret = MSG_task_send(task, mbox);
-// xbt_assert(ret == MSG_OK);
xbt_free(task_name);
if(ret == MSG_HOST_FAILURE){
//XBT_INFO("SRC host failed during migration of %s (stage %d)", sg_host_name(vm), stage);
MSG_task_destroy(task);
THROWF(host_error, 0, "DST host failed during migration of %s (stage %d)", sg_host_name(vm), stage);
}
-//else
-// XBT_INFO("Ret != FAILURE !!!!");
double clock_end = MSG_get_clock();
double duration = clock_end - clock_sta;
{
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 ;)
+ // Note that the ms structure has been allocated in do_migration and hence should be freed in the same function ;)
struct migration_session *ms = MSG_process_get_data(MSG_process_self());
s_ws_params_t params;
/* send ramsize, but split it */
double clock_prev_send = MSG_get_clock();
- TRY{
- computed_during_stage1 = send_stage1(ms, ramsize, mig_speed, dp_rate, dp_cap);
+ TRY {
+ computed_during_stage1 = send_stage1(ms, ramsize, mig_speed, dp_rate, dp_cap);
} CATCH_ANONYMOUS{
//hostfailure (if you want to know whether this is the SRC or the DST please check directly in send_migration_data code)
- // Stop the dirty page tracking an return (there is no memory space to release)
+ // Stop the dirty page tracking an return (there is no memory space to release)
stop_dirty_page_tracking(vm);
- return 0;
+ return 0;
}
remaining_size -= ramsize;
send_migration_data(ms->vm, ms->src_pm, ms->dst_pm, updated_size, ms->mbox, 2, stage2_round, mig_speed);
}CATCH_ANONYMOUS{
//hostfailure (if you want to know whether this is the SRC or the DST please check directly in send_migration_data code)
- // Stop the dirty page tracking an return (there is no memory space to release)
+ // Stop the dirty page tracking an return (there is no memory space to release)
stop_dirty_page_tracking(vm);
- return 0;
+ return 0;
}
double clock_post_send = MSG_get_clock();
XBT_DEBUG("mig-stage3: remaining_size %f", remaining_size);
simcall_vm_suspend(vm);
stop_dirty_page_tracking(vm);
-
+
TRY{
send_migration_data(ms->vm, ms->src_pm, ms->dst_pm, remaining_size, ms->mbox, 3, 0, mig_speed);
}CATCH_ANONYMOUS{
//hostfailure (if you want to know whether this is the SRC or the DST please check directly in send_migration_data code)
- // Stop the dirty page tracking an return (there is no memory space to release)
+ // Stop the dirty page tracking an return (there is no memory space to release)
simcall_vm_resume(vm);
- return 0;
+ return 0;
}
-
- // At that point the Migration is considered valid for the SRC node but remind that the DST side should relocate effectively the VM on the DST node.
+
+ // At that point the Migration is considered valid for the SRC node but remind that the DST side should relocate effectively the VM on the DST node.
XBT_DEBUG("mig: tx_done");
ms->dst_pm = dst_pm;
ms->mbox_ctl = get_mig_mbox_ctl(vm, src_pm, dst_pm);
ms->mbox = get_mig_mbox_src_dst(vm, src_pm, dst_pm);
-
+
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);
{
XBT_DEBUG("wait for reception of the final ACK (i.e. migration has been correctly performed");
msg_task_t task = NULL;
- msg_error_t ret = MSG_TIMEOUT;
+ msg_error_t ret = MSG_TIMEOUT;
while (ret == MSG_TIMEOUT && MSG_host_is_on(dst_pm)) //Wait while you receive the message o
ret = MSG_task_receive_with_timeout(&task, ms->mbox_ctl, 10);
xbt_free(ms->mbox_ctl);
xbt_free(ms->mbox);
xbt_free(ms);
-
+
//xbt_assert(ret == MSG_OK);
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
//XBT_INFO("SRC crashes, throw an exception (m-control)");
- return -1;
- }
+ return -1;
+ }
else if((ret == MSG_TRANSFER_FAILURE) || (ret == MSG_TIMEOUT)){ // MSG_TIMEOUT here means that MSG_host_is_avail() returned false.
//XBT_INFO("DST crashes, throw an exception (m-control)");
- return -2;
+ return -2;
}
-
+
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);
MSG_task_destroy(task);
- return 0;
+ return 0;
}
}
* physical host.
*
* The second one would be easier.
- *
+ *
*/
msg_host_t old_pm = simcall_vm_get_pm(vm);
priv->is_migrating = 1;
{
-
- int ret = do_migration(vm, old_pm, new_pm);
+
+ int ret = do_migration(vm, old_pm, new_pm);
if (ret == -1){
priv->is_migrating = 0;
THROWF(host_error, 0, "SRC host failed during migration");
}
- else if(ret == -2){
+ else if(ret == -2){
priv->is_migrating = 0;
THROWF(host_error, 0, "DST host failed during migration");
}
* On PM0, there are Task1 and VM0.
* On VM0, there is Task2.
* Now we bound 75% to Task1\@PM0 and bound 25% to Task2\@VM0.
- * Then,
+ * Then,
* Task1\@PM0 gets 50%.
* Task2\@VM0 gets 25%.
* This is NOT 75% for Task1\@PM0 and 25% for Task2\@VM0, respectively.
*/
void MSG_vm_set_bound(msg_vm_t vm, double bound)
{
- return simcall_vm_set_bound(vm, bound);
+ return simcall_vm_set_bound(vm, bound);
}
