X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/5a97de8c98502af9f74cfceb924fa02e0fd80925..c85e43e7cc3034aefc758257a387d32026c05ef4:/src/msg/msg_vm.c

diff --git a/src/msg/msg_vm.c b/src/msg/msg_vm.c
index 4d83a7d308..e68d1dd22d 100644
--- a/src/msg/msg_vm.c
+++ b/src/msg/msg_vm.c
@@ -16,6 +16,7 @@
 #include "xbt/sysdep.h"
 #include "xbt/log.h"
 #include "simgrid/platf.h"
+#include "simgrid/host.h"
 
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_vm, msg,
                                 "Cloud-oriented parts of the MSG API");
@@ -75,7 +76,7 @@ void MSG_vm_set_property_value(msg_vm_t vm, const char *name, void *value, void_
 
 msg_vm_t MSG_vm_get_by_name(const char *name)
 {
-  return MSG_get_host_by_name(name);
+  return MSG_host_by_name(name);
 }
 
 /** \ingroup m_vm_management
@@ -118,7 +119,7 @@ int MSG_vm_is_running(msg_vm_t vm)
  */
 int MSG_vm_is_migrating(msg_vm_t vm)
 {
-  msg_host_priv_t priv = msg_host_resource_priv(vm);
+  msg_host_priv_t priv = sg_host_msg(vm);
   return priv->is_migrating;
 }
 
@@ -205,7 +206,7 @@ msg_vm_t MSG_vm_create_core(msg_host_t ind_pm, const char *name)
   /* make sure the VM of the same name does not exit */
   {
     xbt_dictelm_t ind_host_tmp = xbt_lib_get_elm_or_null(host_lib, name);
-    if (ind_host_tmp && xbt_lib_get_level(ind_host_tmp, SIMIX_HOST_LEVEL) != NULL) {
+    if (ind_host_tmp && sg_host_simix(ind_host_tmp) != NULL) {
       XBT_ERROR("host %s already exits", name);
       return NULL;
     }
@@ -221,9 +222,7 @@ msg_vm_t MSG_vm_create_core(msg_host_t ind_pm, const char *name)
 
   XBT_DEBUG("A new VM (%s) has been created", name);
 
-  #ifdef HAVE_TRACING
   TRACE_msg_vm_create(name, ind_pm);
-  #endif
 
   return ind_vm;
 }
@@ -250,9 +249,7 @@ void MSG_vm_destroy(msg_vm_t vm)
 
   __MSG_host_destroy(vm);
 
-  #ifdef HAVE_TRACING
   TRACE_msg_vm_end(vm);
-  #endif
 }
 
 
@@ -266,9 +263,7 @@ void MSG_vm_start(msg_vm_t vm)
 {
   simcall_vm_start(vm);
 
-  #ifdef HAVE_TRACING
   TRACE_msg_vm_start(vm);
-  #endif
 }
 
 
@@ -284,9 +279,7 @@ void MSG_vm_shutdown(msg_vm_t vm)
   /* msg_vm_t equals to msg_host_t */
   simcall_vm_shutdown(vm);
 
-  // #ifdef HAVE_TRACING
   // TRACE_msg_vm_(vm);
-  // #endif
 }
 
 
@@ -398,18 +391,20 @@ static int migration_rx_fun(int argc, char *argv[])
    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
-// I should check with Takahiro in order to make this portion of code atomic
-  /* deinstall the current affinity setting for the CPU */
-  simcall_vm_set_affinity(vm, src_pm, 0);
-
-  /* Update the vm location */
-  simcall_vm_migrate(vm, dst_pm);
- 
-  /* Resume the VM */
-  simcall_vm_resume(vm);
+   msg_host_priv_t priv = sg_host_msg(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
+// // I should check with Takahiro in order to make this portion of code atomic
+//  /* deinstall the current affinity setting for the CPU */
+//  simcall_vm_set_affinity(vm, src_pm, 0);
+//
+//  /* Update the vm location */
+//  simcall_vm_migrate(vm, dst_pm);
+// 
+//  /* Resume the VM */
+//  simcall_vm_resume(vm);
+//
+   simcall_vm_migratefrom_resumeto(vm, src_pm, dst_pm); 
 
   /* install the affinity setting of the VM on the destination pm */
   {
@@ -422,13 +417,10 @@ static int migration_rx_fun(int argc, char *argv[])
   {
 
    // Now the VM is running on the new host (the migration is completed) (even if the SRC crash)
-   msg_host_priv_t priv = msg_host_resource_priv(vm);
+   msg_host_priv_t priv = sg_host_msg(vm);
    priv->is_migrating = 0;
    XBT_DEBUG("VM(%s) moved from PM(%s) to PM(%s)", ms->vm->key, ms->src_pm->key, ms->dst_pm->key);
-   #ifdef HAVE_TRACING
-    TRACE_msg_vm_change_host(ms->vm, ms->src_pm, ms->dst_pm);
-   #endif
-
+   TRACE_msg_vm_change_host(ms->vm, ms->src_pm, ms->dst_pm);
   }
   // Inform the SRC that the migration has been correctly performed
   {
@@ -458,13 +450,13 @@ static int migration_rx_fun(int argc, char *argv[])
 
 static void reset_dirty_pages(msg_vm_t vm)
 {
-  msg_host_priv_t priv = msg_host_resource_priv(vm);
+  msg_host_priv_t priv = sg_host_msg(vm);
 
   char *key = NULL;
   xbt_dict_cursor_t cursor = NULL;
   dirty_page_t dp = NULL;
   xbt_dict_foreach(priv->dp_objs, cursor, key, dp) {
-    double remaining = MSG_task_get_remaining_computation(dp->task);
+    double remaining = MSG_task_get_flops_amount(dp->task);
     dp->prev_clock = MSG_get_clock();
     dp->prev_remaining = remaining;
 
@@ -474,7 +466,7 @@ static void reset_dirty_pages(msg_vm_t vm)
 
 static void start_dirty_page_tracking(msg_vm_t vm)
 {
-  msg_host_priv_t priv = msg_host_resource_priv(vm);
+  msg_host_priv_t priv = sg_host_msg(vm);
   priv->dp_enabled = 1;
 
   reset_dirty_pages(vm);
@@ -482,7 +474,7 @@ static void start_dirty_page_tracking(msg_vm_t vm)
 
 static void stop_dirty_page_tracking(msg_vm_t vm)
 {
-  msg_host_priv_t priv = msg_host_resource_priv(vm);
+  msg_host_priv_t priv = sg_host_msg(vm);
   priv->dp_enabled = 0;
 }
 
@@ -518,14 +510,14 @@ 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)
 {
-  msg_host_priv_t priv = msg_host_resource_priv(vm);
+  msg_host_priv_t priv = sg_host_msg(vm);
   double total = 0;
 
   char *key = NULL;
   xbt_dict_cursor_t cursor = NULL;
   dirty_page_t dp = NULL;
   xbt_dict_foreach(priv->dp_objs, cursor, key, dp) {
-    double remaining = MSG_task_get_remaining_computation(dp->task);
+    double remaining = MSG_task_get_flops_amount(dp->task);
 
     double clock = MSG_get_clock();
 
@@ -555,8 +547,8 @@ static double lookup_computed_flop_counts(msg_vm_t vm, int stage_for_fancy_debug
 // msg_process_t MSG_process_create(const char *name, xbt_main_func_t code, void *data, msg_host_t host)
 void MSG_host_add_task(msg_host_t host, msg_task_t task)
 {
-  msg_host_priv_t priv = msg_host_resource_priv(host);
-  double remaining = MSG_task_get_remaining_computation(task);
+  msg_host_priv_t priv = sg_host_msg(host);
+  double remaining = MSG_task_get_flops_amount(task);
   char *key = bprintf("%s-%p", task->name, task);
 
   dirty_page_t dp = xbt_new0(s_dirty_page, 1);
@@ -577,7 +569,7 @@ void MSG_host_add_task(msg_host_t host, msg_task_t task)
 
 void MSG_host_del_task(msg_host_t host, msg_task_t task)
 {
-  msg_host_priv_t priv = msg_host_resource_priv(host);
+  msg_host_priv_t priv = sg_host_msg(host);
 
   char *key = bprintf("%s-%p", task->name, task);
 
@@ -588,7 +580,7 @@ void MSG_host_del_task(msg_host_t host, msg_task_t task)
    * computation has been done until now, and keep the information for the
    * lookup_() function that will called soon. */
   if (priv->dp_enabled) {
-    double remaining = MSG_task_get_remaining_computation(task);
+    double remaining = MSG_task_get_flops_amount(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);
@@ -814,7 +806,7 @@ static int migration_tx_fun(int argc, char *argv[])
     sg_size_t sent = 0;
     double clock_prev_send = MSG_get_clock();
     TRY {
-      XBT_INFO("Stage 2, gonna send %llu", updated_size);
+      XBT_DEBUG("Stage 2, gonna send %llu", updated_size);
       sent = send_migration_data(ms->vm, ms->src_pm, ms->dst_pm, updated_size, ms->mbox, 2, stage2_round, mig_speed, mig_timeout);
     } CATCH_ANONYMOUS {
       //hostfailure (if you want to know whether this is the SRC or the DST please check directly in send_migration_data code)
@@ -858,7 +850,7 @@ stage3:
   stop_dirty_page_tracking(ms->vm);
 
   TRY {
-    XBT_INFO("Stage 3: Gonna send %f", remaining_size);
+    XBT_DEBUG("Stage 3: Gonna send %f", remaining_size);
     send_migration_data(ms->vm, ms->src_pm, ms->dst_pm, remaining_size, ms->mbox, 3, 0, mig_speed, -1);
   } CATCH_ANONYMOUS {
     //hostfailure (if you want to know whether this is the SRC or the DST please check directly in send_migration_data code)
@@ -868,7 +860,7 @@ stage3:
   }
 
   // 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_INFO("mig: tx_done");
+  XBT_DEBUG("mig: tx_done");
 
   return 0;
 }
@@ -975,13 +967,19 @@ void MSG_vm_migrate(msg_vm_t vm, msg_host_t new_pm)
 
   msg_host_t old_pm = simcall_vm_get_pm(vm);
 
+  if(MSG_host_is_off(old_pm))
+    THROWF(vm_error, 0, "SRC host(%s) seems off, cannot start a migration", sg_host_name(old_pm));
+ 
+  if(MSG_host_is_off(new_pm))
+    THROWF(vm_error, 0, "DST host(%s) seems off, cannot start a migration", sg_host_name(new_pm));
+  
   if (!MSG_vm_is_running(vm))
     THROWF(vm_error, 0, "VM(%s) is not running", sg_host_name(vm));
 
   if (MSG_vm_is_migrating(vm))
     THROWF(vm_error, 0, "VM(%s) is already migrating", sg_host_name(vm));
 
-  msg_host_priv_t priv = msg_host_resource_priv(vm);
+  msg_host_priv_t priv = sg_host_msg(vm);
   priv->is_migrating = 1;
 
   {
@@ -1000,9 +998,7 @@ void MSG_vm_migrate(msg_vm_t vm, msg_host_t new_pm)
   // This part is done in the RX code, to handle the corner case where SRC can crash just at the end of the migration process
   // In that case, the VM has been already assigned to the DST node.
   //XBT_DEBUG("VM(%s) moved from PM(%s) to PM(%s)", vm->key, old_pm->key, new_pm->key);
-  //#ifdef HAVE_TRACING
   //TRACE_msg_vm_change_host(vm, old_pm, new_pm);
-  //#endif
 }
 
 
@@ -1023,9 +1019,7 @@ void MSG_vm_suspend(msg_vm_t vm)
 
   XBT_DEBUG("vm_suspend done");
 
-  #ifdef HAVE_TRACING
   TRACE_msg_vm_suspend(vm);
-  #endif
 }
 
 
@@ -1038,9 +1032,7 @@ void MSG_vm_resume(msg_vm_t vm)
 {
   simcall_vm_resume(vm);
 
-  #ifdef HAVE_TRACING
   TRACE_msg_vm_resume(vm);
-  #endif
 }
 
 
@@ -1060,9 +1052,7 @@ void MSG_vm_save(msg_vm_t vm)
     THROWF(vm_error, 0, "VM(%s) is migrating", sg_host_name(vm));
 
   simcall_vm_save(vm);
-  #ifdef HAVE_TRACING
   TRACE_msg_vm_save(vm);
-  #endif
 }
 
 /** @brief Restore the execution of the VM. All processes on the VM run again.
@@ -1076,9 +1066,7 @@ void MSG_vm_restore(msg_vm_t vm)
 {
   simcall_vm_restore(vm);
 
-  #ifdef HAVE_TRACING
   TRACE_msg_vm_restore(vm);
-  #endif
 }
 
 
@@ -1139,7 +1127,7 @@ void MSG_vm_set_bound(msg_vm_t vm, double bound)
  */
 void MSG_vm_set_affinity(msg_vm_t vm, msg_host_t pm, unsigned long mask)
 {
-  msg_host_priv_t priv = msg_host_resource_priv(vm);
+  msg_host_priv_t priv = sg_host_msg(vm);
 
   if (mask == 0)
     xbt_dict_remove_ext(priv->affinity_mask_db, (char *) pm, sizeof(pm));