X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/dd22867177c86db2e9d0b76852cb09e044b1c0c8..4e5def63badcab36ae4c7b58645aa0a65ce4e0d0:/src/simix/smx_vm.c diff --git a/src/simix/smx_vm.c b/src/simix/smx_vm.c index ce340c2082..213c1651f5 100644 --- a/src/simix/smx_vm.c +++ b/src/simix/smx_vm.c @@ -1,4 +1,4 @@ -/* Copyright (c) 2007-2012. The SimGrid Team. +/* Copyright (c) 2007-2014. The SimGrid Team. * All rights reserved. */ /* This program is free software; you can redistribute it and/or modify it @@ -23,7 +23,7 @@ XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_vm, simix, "Logging specific to SIMIX (vms smx_host_t SIMIX_vm_create(const char *name, smx_host_t ind_phys_host) { /* Create surf associated resource */ - surf_vm_workstation_model->extension.vm_workstation.create(name, ind_phys_host); + surf_vm_workstation_model_create(name, ind_phys_host); smx_host_t smx_host = SIMIX_host_create(name, ind_phys_host, NULL); @@ -34,17 +34,11 @@ smx_host_t SIMIX_vm_create(const char *name, smx_host_t ind_phys_host) } -smx_host_t SIMIX_pre_vm_create(smx_simcall_t simcall, const char *name, smx_host_t ind_phys_host) -{ - return SIMIX_vm_create(name, ind_phys_host); -} - - /* works for VMs and PMs */ static long host_get_ramsize(smx_host_t vm, int *overcommit) { s_ws_params_t params; - surf_workstation_model->extension.workstation.get_params(vm, ¶ms); + surf_workstation_get_params(vm, ¶ms); if (overcommit) *overcommit = params.overcommit; @@ -55,7 +49,7 @@ static long host_get_ramsize(smx_host_t vm, int *overcommit) /* **** start a VM **** */ static int __can_be_started(smx_host_t vm) { - smx_host_t pm = surf_vm_workstation_model->extension.vm_workstation.get_pm(vm); + smx_host_t pm = surf_vm_workstation_get_pm(vm); int pm_overcommit = 0; long pm_ramsize = host_get_ramsize(pm, &pm_overcommit); @@ -72,7 +66,7 @@ static int __can_be_started(smx_host_t vm) } long total_ramsize_of_vms = 0; - xbt_dynar_t dyn_vms = surf_workstation_model->extension.workstation.get_vms(pm); + xbt_dynar_t dyn_vms = surf_workstation_get_vms(pm); { unsigned int cursor = 0; smx_host_t another_vm; @@ -96,83 +90,100 @@ static int __can_be_started(smx_host_t vm) void SIMIX_vm_start(smx_host_t ind_vm) { if (__can_be_started(ind_vm)) - SIMIX_vm_set_state(ind_vm, SURF_VM_STATE_RUNNING); + surf_resource_set_state(surf_workstation_resource_priv(ind_vm), + (int)SURF_VM_STATE_RUNNING); else THROWF(vm_error, 0, "The VM %s cannot be started", SIMIX_host_get_name(ind_vm)); } - -void SIMIX_pre_vm_start(smx_simcall_t simcall, smx_host_t ind_vm) -{ - SIMIX_vm_start(ind_vm); - SIMIX_simcall_answer(simcall); -} - -/* ***** set/get state of a VM ***** */ -void SIMIX_vm_set_state(smx_host_t ind_vm, int state) -{ - /* jump to vm_ws_set_state */ - surf_vm_workstation_model->extension.vm_workstation.set_state(ind_vm, state); -} - -void SIMIX_pre_vm_set_state(smx_simcall_t simcall, smx_host_t ind_vm, int state) -{ - SIMIX_vm_set_state(ind_vm, state); -} - int SIMIX_vm_get_state(smx_host_t ind_vm) { - return surf_vm_workstation_model->extension.vm_workstation.get_state(ind_vm); -} - -int SIMIX_pre_vm_get_state(smx_simcall_t simcall, smx_host_t ind_vm) -{ - return SIMIX_vm_get_state(ind_vm); + return surf_resource_get_state(surf_workstation_resource_priv(ind_vm)); } - /** - * \brief Function to migrate a SIMIX VM host. + * \brief Function to migrate a SIMIX VM host. * * \param host the vm host to migrate (a smx_host_t) */ void SIMIX_vm_migrate(smx_host_t ind_vm, smx_host_t ind_dst_pm) { /* precopy migration makes the VM temporally paused */ - e_surf_vm_state_t state = SIMIX_vm_get_state(ind_vm); - xbt_assert(state == SURF_VM_STATE_SUSPENDED); + xbt_assert(SIMIX_vm_get_state(ind_vm) == SURF_VM_STATE_SUSPENDED); - /* jump to vm_ws_migrate(). this will update the vm location. */ - surf_vm_workstation_model->extension.vm_workstation.migrate(ind_vm, ind_dst_pm); + /* jump to vm_ws_xigrate(). this will update the vm location. */ + surf_vm_workstation_migrate(ind_vm, ind_dst_pm); } -void SIMIX_pre_vm_migrate(smx_simcall_t simcall, smx_host_t ind_vm, smx_host_t ind_dst_pm) +/** + * \brief Encompassing simcall to prevent the removal of the src or the dst node at the end of a VM migration + * The simcall actually invokes the following calls: + * simcall_vm_set_affinity(vm, src_pm, 0); + * simcall_vm_migrate(vm, dst_pm); + * simcall_vm_resume(vm); + * + * It is called at the end of the migration_rx_fun function from msg/msg_vm.c + * + * \param vm VM to migrate + * \param src_pm Source physical host + * \param dst_pmt Destination physical host + */ +void SIMIX_vm_migratefrom_resumeto(smx_host_t vm, smx_host_t src_pm, smx_host_t dst_pm) { - SIMIX_vm_migrate(ind_vm, ind_dst_pm); - SIMIX_simcall_answer(simcall); -} + /* deinstall the current affinity setting for the CPU */ + SIMIX_vm_set_affinity(vm, src_pm, 0); + /* Update the vm location */ + SIMIX_vm_migrate(vm, dst_pm); + + /* Resume the VM */ + smx_process_t self = SIMIX_process_self(); + SIMIX_vm_resume(vm, self->simcall.issuer); +} /** - * \brief Function to get the physical host of the given the SIMIX VM host. + * \brief Function to get the physical host of the given SIMIX VM host. * * \param host the vm host to get_phys_host (a smx_host_t) */ void *SIMIX_vm_get_pm(smx_host_t ind_vm) { /* jump to vm_ws_get_pm(). this will return the vm name. */ - return surf_vm_workstation_model->extension.vm_workstation.get_pm(ind_vm); + return surf_vm_workstation_get_pm(ind_vm); } -void *SIMIX_pre_vm_get_pm(smx_simcall_t simcall, smx_host_t ind_vm) +/** + * \brief Function to set the CPU bound of the given SIMIX VM host. + * + * \param host the vm host (a smx_host_t) + * \param bound bound (a double) + */ +void SIMIX_vm_set_bound(smx_host_t ind_vm, double bound) { - return SIMIX_vm_get_pm(ind_vm); + /* jump to vm_ws_set_vm_bound(). */ + surf_vm_workstation_set_bound(ind_vm, bound); +} + +/** + * \brief Function to set the CPU affinity of the given SIMIX VM host. + * + * \param host the vm host (a smx_host_t) + * \param host the pm host (a smx_host_t) + * \param mask affinity mask (a unsigned long) + */ +void SIMIX_vm_set_affinity(smx_host_t ind_vm, smx_host_t ind_pm, unsigned long mask) +{ + /* make sure this at the MSG layer. */ + xbt_assert(SIMIX_vm_get_pm(ind_vm) == ind_pm); + + /* jump to vm_ws_set_vm_affinity(). */ + surf_vm_workstation_set_affinity(ind_vm, ind_pm, mask); } /** - * \brief Function to suspend a SIMIX VM host. This function stops the exection of the + * \brief Function to suspend a SIMIX VM host. This function stops the execution of the * VM. All the processes on this VM will pause. The state of the VM is * preserved on memory. We can later resume it again. * @@ -188,7 +199,7 @@ void SIMIX_vm_suspend(smx_host_t ind_vm, smx_process_t issuer) XBT_DEBUG("suspend VM(%s), where %d processes exist", name, xbt_swag_size(SIMIX_host_priv(ind_vm)->process_list)); /* jump to vm_ws_suspend. The state will be set. */ - surf_vm_workstation_model->extension.vm_workstation.suspend(ind_vm); + surf_vm_workstation_suspend(ind_vm); smx_process_t smx_process, smx_process_safe; xbt_swag_foreach_safe(smx_process, smx_process_safe, SIMIX_host_priv(ind_vm)->process_list) { @@ -199,7 +210,7 @@ void SIMIX_vm_suspend(smx_host_t ind_vm, smx_process_t issuer) XBT_DEBUG("suspend all processes on the VM done done"); } -void SIMIX_pre_vm_suspend(smx_simcall_t simcall, smx_host_t ind_vm) +void simcall_HANDLER_vm_suspend(smx_simcall_t simcall, smx_host_t ind_vm) { if (simcall->issuer->smx_host == ind_vm) { XBT_ERROR("cannot suspend the VM where I run"); @@ -208,16 +219,13 @@ void SIMIX_pre_vm_suspend(smx_simcall_t simcall, smx_host_t ind_vm) SIMIX_vm_suspend(ind_vm, simcall->issuer); - /* without this, simcall_vm_suspend() does not return to the userland. why? */ - SIMIX_simcall_answer(simcall); - - XBT_DEBUG("SIMIX_pre_vm_suspend done"); + XBT_DEBUG("simcall_HANDLER_vm_suspend done"); } /** * \brief Function to resume a SIMIX VM host. This function restart the execution of the - * VM. All the processes on this VM will run again. + * VM. All the processes on this VM will run again. * * \param host the vm host to resume (a smx_host_t) */ @@ -231,7 +239,7 @@ void SIMIX_vm_resume(smx_host_t ind_vm, smx_process_t issuer) XBT_DEBUG("resume VM(%s), where %d processes exist", name, xbt_swag_size(SIMIX_host_priv(ind_vm)->process_list)); /* jump to vm_ws_resume() */ - surf_vm_workstation_model->extension.vm_workstation.resume(ind_vm); + surf_vm_workstation_resume(ind_vm); smx_process_t smx_process, smx_process_safe; xbt_swag_foreach_safe(smx_process, smx_process_safe, SIMIX_host_priv(ind_vm)->process_list) { @@ -240,10 +248,9 @@ void SIMIX_vm_resume(smx_host_t ind_vm, smx_process_t issuer) } } -void SIMIX_pre_vm_resume(smx_simcall_t simcall, smx_host_t ind_vm) +void simcall_HANDLER_vm_resume(smx_simcall_t simcall, smx_host_t ind_vm) { SIMIX_vm_resume(ind_vm, simcall->issuer); - SIMIX_simcall_answer(simcall); } @@ -265,7 +272,7 @@ void SIMIX_vm_save(smx_host_t ind_vm, smx_process_t issuer) XBT_DEBUG("save VM(%s), where %d processes exist", name, xbt_swag_size(SIMIX_host_priv(ind_vm)->process_list)); /* jump to vm_ws_save() */ - surf_vm_workstation_model->extension.vm_workstation.save(ind_vm); + surf_vm_workstation_save(ind_vm); smx_process_t smx_process, smx_process_safe; xbt_swag_foreach_safe(smx_process, smx_process_safe, SIMIX_host_priv(ind_vm)->process_list) { @@ -274,18 +281,15 @@ void SIMIX_vm_save(smx_host_t ind_vm, smx_process_t issuer) } } -void SIMIX_pre_vm_save(smx_simcall_t simcall, smx_host_t ind_vm) +void simcall_HANDLER_vm_save(smx_simcall_t simcall, smx_host_t ind_vm) { SIMIX_vm_save(ind_vm, simcall->issuer); - - /* without this, simcall_vm_suspend() does not return to the userland. why? */ - SIMIX_simcall_answer(simcall); } /** * \brief Function to restore a SIMIX VM host. This function restart the execution of the - * VM. All the processes on this VM will run again. + * VM. All the processes on this VM will run again. * * \param host the vm host to restore (a smx_host_t) */ @@ -299,7 +303,7 @@ void SIMIX_vm_restore(smx_host_t ind_vm, smx_process_t issuer) XBT_DEBUG("restore VM(%s), where %d processes exist", name, xbt_swag_size(SIMIX_host_priv(ind_vm)->process_list)); /* jump to vm_ws_restore() */ - surf_vm_workstation_model->extension.vm_workstation.resume(ind_vm); + surf_vm_workstation_resume(ind_vm); smx_process_t smx_process, smx_process_safe; xbt_swag_foreach_safe(smx_process, smx_process_safe, SIMIX_host_priv(ind_vm)->process_list) { @@ -308,10 +312,9 @@ void SIMIX_vm_restore(smx_host_t ind_vm, smx_process_t issuer) } } -void SIMIX_pre_vm_restore(smx_simcall_t simcall, smx_host_t ind_vm) +void simcall_HANDLER_vm_restore(smx_simcall_t simcall, smx_host_t ind_vm) { SIMIX_vm_restore(ind_vm, simcall->issuer); - SIMIX_simcall_answer(simcall); } @@ -329,22 +332,23 @@ void SIMIX_vm_shutdown(smx_host_t ind_vm, smx_process_t issuer) if (SIMIX_vm_get_state(ind_vm) != SURF_VM_STATE_RUNNING) THROWF(vm_error, 0, "VM(%s) is not running", name); + XBT_DEBUG("shutdown %s", name); XBT_DEBUG("%d processes in the VM", xbt_swag_size(SIMIX_host_priv(ind_vm)->process_list)); smx_process_t smx_process, smx_process_safe; xbt_swag_foreach_safe(smx_process, smx_process_safe, SIMIX_host_priv(ind_vm)->process_list) { - XBT_DEBUG("shutdown %s", name); + XBT_DEBUG("kill %s", smx_process->name); SIMIX_process_kill(smx_process, issuer); } /* FIXME: we may have to do something at the surf layer, e.g., vcpu action */ - SIMIX_vm_set_state(ind_vm, SURF_VM_STATE_CREATED); + surf_resource_set_state(surf_workstation_resource_priv(ind_vm), + (int)SURF_VM_STATE_CREATED); } -void SIMIX_pre_vm_shutdown(smx_simcall_t simcall, smx_host_t ind_vm) +void simcall_HANDLER_vm_shutdown(smx_simcall_t simcall, smx_host_t ind_vm) { SIMIX_vm_shutdown(ind_vm, simcall->issuer); - SIMIX_simcall_answer(simcall); } @@ -360,15 +364,11 @@ void SIMIX_vm_destroy(smx_host_t ind_vm) xbt_assert((ind_vm != NULL), "Invalid parameters"); const char *hostname = SIMIX_host_get_name(ind_vm); + XBT_DEBUG("destroy %s", hostname); + /* this will call the registered callback function, i.e., SIMIX_host_destroy(). */ xbt_lib_unset(host_lib, hostname, SIMIX_HOST_LEVEL, 1); /* jump to vm_ws_destroy(). The surf level resource will be freed. */ - surf_vm_workstation_model->extension.vm_workstation.destroy(ind_vm); -} - -void SIMIX_pre_vm_destroy(smx_simcall_t simcall, smx_host_t ind_vm) -{ - SIMIX_vm_destroy(ind_vm); - SIMIX_simcall_answer(simcall); + surf_vm_workstation_destroy(ind_vm); }