X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/fd77edf75909515d711d8be2c27e61e23a72ba74..60b3f1d683ffdc0ec72d8ec1c3bbc57e53b44596:/src/surf/HostImpl.cpp diff --git a/src/surf/HostImpl.cpp b/src/surf/HostImpl.cpp index df99dc0545..09d521b66f 100644 --- a/src/surf/HostImpl.cpp +++ b/src/surf/HostImpl.cpp @@ -1,413 +1,160 @@ -/* Copyright (c) 2013-2015. The SimGrid Team. - * All rights reserved. */ +/* Copyright (c) 2013-2019. The SimGrid Team. All rights reserved. */ /* This program is free software; you can redistribute it and/or modify it * under the terms of the license (GNU LGPL) which comes with this package. */ -#include +#include "src/plugins/vm/VirtualMachineImpl.hpp" +#include "src/simix/smx_private.hpp" -#include "src/simix/smx_private.h" -#include "cpu_cas01.hpp" -#include "src/surf/HostImpl.hpp" -#include "simgrid/sg_config.h" +#include -#include "network_interface.hpp" -#include "virtual_machine.hpp" +XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_host, surf, "Logging specific to the SURF host module"); -XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_host, surf, - "Logging specific to the SURF host module"); - -simgrid::surf::HostModel *surf_host_model = NULL; +simgrid::surf::HostModel *surf_host_model = nullptr; /************* - * Callbacks * + * Callbacks *t *************/ namespace simgrid { namespace surf { -simgrid::xbt::Extension HostImpl::EXTENSION_ID; - /********* * Model * *********/ -HostImpl *HostModel::createHost(const char *name,NetCard *netElm, Cpu *cpu, xbt_dict_t props){ - xbt_dynar_t storageList = (xbt_dynar_t)xbt_lib_get_or_null(storage_lib, name, ROUTING_STORAGE_HOST_LEVEL); - - HostImpl *host = new simgrid::surf::HostImpl(surf_host_model, name, props, storageList, cpu); - XBT_DEBUG("Create host %s with %ld mounted disks", name, xbt_dynar_length(host->p_storage)); - return host; -} - -/* Each VM has a dummy CPU action on the PM layer. This CPU action works as the - * constraint (capacity) of the VM in the PM layer. If the VM does not have any - * active task, the dummy CPU action must be deactivated, so that the VM does - * not get any CPU share in the PM layer. */ -void HostModel::adjustWeightOfDummyCpuActions() +/* Helper function for executeParallelTask */ +static inline double has_cost(const double* array, size_t pos) { - /* iterate for all virtual machines */ - for (VMModel::vm_list_t::iterator iter = - VMModel::ws_vms.begin(); - iter != VMModel::ws_vms.end(); ++iter) { - - VirtualMachine *ws_vm = &*iter; - Cpu *cpu = ws_vm->p_cpu; - - int is_active = lmm_constraint_used(cpu->getModel()->getMaxminSystem(), cpu->getConstraint()); - - if (is_active) { - /* some tasks exist on this VM */ - XBT_DEBUG("set the weight of the dummy CPU action on PM to 1"); - - /* FIXME: we should use lmm_update_variable_weight() ? */ - /* FIXME: If we assign 1.05 and 0.05, the system makes apparently wrong values. */ - ws_vm->p_action->setPriority(1); - - } else { - /* no task exits on this VM */ - XBT_DEBUG("set the weight of the dummy CPU action on PM to 0"); - - ws_vm->p_action->setPriority(0); - } - } + if (array) + return array[pos]; + else + return -1.0; } -Action *HostModel::executeParallelTask(int host_nb, - sg_host_t *host_list, - double *flops_amount, - double *bytes_amount, - double rate){ -#define cost_or_zero(array,pos) ((array)?(array)[pos]:0.0) - Action *action =NULL; - if ((host_nb == 1) - && (cost_or_zero(bytes_amount, 0) == 0.0)){ +kernel::resource::Action* HostModel::execute_parallel(const std::vector& host_list, + const double* flops_amount, const double* bytes_amount, + double rate) +{ + kernel::resource::Action* action = nullptr; + if ((host_list.size() == 1) && (has_cost(bytes_amount, 0) <= 0) && (has_cost(flops_amount, 0) > 0)) { action = host_list[0]->pimpl_cpu->execution_start(flops_amount[0]); - } else if ((host_nb == 1) - && (cost_or_zero(flops_amount, 0) == 0.0)) { - action = surf_network_model->communicate(host_list[0]->pimpl_netcard, - host_list[0]->pimpl_netcard, - bytes_amount[0], rate); - } else if ((host_nb == 2) - && (cost_or_zero(flops_amount, 0) == 0.0) - && (cost_or_zero(flops_amount, 1) == 0.0)) { - int i,nb = 0; + } else if ((host_list.size() == 1) && (has_cost(flops_amount, 0) <= 0)) { + action = surf_network_model->communicate(host_list[0], host_list[0], bytes_amount[0], rate); + } else if ((host_list.size() == 2) && (has_cost(flops_amount, 0) <= 0) && (has_cost(flops_amount, 1) <= 0)) { + int nb = 0; double value = 0.0; - for (i = 0; i < host_nb * host_nb; i++) { - if (cost_or_zero(bytes_amount, i) > 0.0) { + for (size_t i = 0; i < host_list.size() * host_list.size(); i++) { + if (has_cost(bytes_amount, i) > 0.0) { nb++; - value = cost_or_zero(bytes_amount, i); + value = has_cost(bytes_amount, i); } } - if (nb == 1){ - action = surf_network_model->communicate(host_list[0]->pimpl_netcard, - host_list[1]->pimpl_netcard, - value, rate); + if (nb == 1) { + action = surf_network_model->communicate(host_list[0], host_list[1], value, rate); + } else if (nb == 0) { + xbt_die("Cannot have a communication with no flop to exchange in this model. You should consider using the " + "ptask model"); + } else { + xbt_die("Cannot have a communication that is not a simple point-to-point in this model. You should consider " + "using the ptask model"); } - } else - THROW_UNIMPLEMENTED; /* This model does not implement parallel tasks for more than 2 hosts */ -#undef cost_or_zero - xbt_free(host_list); + } else { + xbt_die( + "This model only accepts one of the following. You should consider using the ptask model for the other cases.\n" + " - execution with one host only and no communication\n" + " - Self-comms with one host only\n" + " - Communications with two hosts and no computation"); + } return action; } /************ * Resource * ************/ - - -void HostImpl::classInit() -{ - if (!EXTENSION_ID.valid()) { - EXTENSION_ID = simgrid::s4u::Host::extension_create(); - } -} - -HostImpl::HostImpl(simgrid::surf::HostModel *model, const char *name, xbt_dict_t props, - xbt_dynar_t storage, Cpu *cpu) - : Resource(model, name) - , PropertyHolder(props) - , p_storage(storage), p_cpu(cpu) +HostImpl::HostImpl(s4u::Host* host) : piface_(host) { - p_params.ramsize = 0; + /* The VM wants to reinstall a new HostImpl, but we don't want to leak the previously existing one */ + delete piface_->pimpl_; + piface_->pimpl_ = this; } -HostImpl::HostImpl(simgrid::surf::HostModel *model, const char *name, xbt_dict_t props, lmm_constraint_t constraint, - xbt_dynar_t storage, Cpu *cpu) - : Resource(model, name, constraint) - , PropertyHolder(props) - , p_storage(storage), p_cpu(cpu) -{ - p_params.ramsize = 0; -} - -/** @brief use destroy() instead of this destructor */ HostImpl::~HostImpl() { -} - -void HostImpl::attach(simgrid::s4u::Host* host) -{ - if (p_host != nullptr) - xbt_die("Already attached to host %s", host->name().c_str()); - host->extension_set(this); - p_host = host; -} - -bool HostImpl::isOn() { - return p_cpu->isOn(); -} -bool HostImpl::isOff() { - return p_cpu->isOff(); -} -void HostImpl::turnOn(){ - if (isOff()) { - p_cpu->turnOn(); - simgrid::s4u::Host::onStateChange(*this->p_host); - } -} -void HostImpl::turnOff(){ - if (isOn()) { - p_cpu->turnOff(); - simgrid::s4u::Host::onStateChange(*this->p_host); - } -} - -simgrid::surf::Storage *HostImpl::findStorageOnMountList(const char* mount) -{ - simgrid::surf::Storage *st = NULL; - s_mount_t mnt; - unsigned int cursor; - - XBT_DEBUG("Search for storage name '%s' on '%s'", mount, getName()); - xbt_dynar_foreach(p_storage,cursor,mnt) - { - XBT_DEBUG("See '%s'",mnt.name); - if(!strcmp(mount,mnt.name)){ - st = static_cast(mnt.storage); - break; - } + /* All processes should be gone when the host is turned off (by the end of the simulation). */ + if (not process_list_.empty()) { + std::string msg = std::string("Shutting down host, but it's not empty:"); + for (auto const& process : process_list_) + msg += "\n\t" + std::string(process.get_name()); + + SIMIX_display_process_status(); + THROWF(arg_error, 0, "%s", msg.c_str()); } - if(!st) xbt_die("Can't find mount '%s' for '%s'", mount, getName()); - return st; + for (auto const& arg : actors_at_boot_) + delete arg; + actors_at_boot_.clear(); } -xbt_dict_t HostImpl::getMountedStorageList() +/** Re-starts all the actors that are marked as restartable. + * + * Weird things will happen if you turn on a host that is already on. S4U is fool-proof, not this. + */ +void HostImpl::turn_on() { - s_mount_t mnt; - unsigned int i; - xbt_dict_t storage_list = xbt_dict_new_homogeneous(NULL); - char *storage_name = NULL; - - xbt_dynar_foreach(p_storage,i,mnt){ - storage_name = (char *)static_cast(mnt.storage)->getName(); - xbt_dict_set(storage_list,mnt.name,storage_name,NULL); + for (auto const& arg : actors_at_boot_) { + XBT_DEBUG("Booting Actor %s(%s) right now", arg->name.c_str(), arg->host->get_cname()); + simgrid::kernel::actor::ActorImplPtr actor = simgrid::kernel::actor::ActorImpl::create( + arg->name.c_str(), arg->code, nullptr, arg->host, arg->properties.get(), nullptr); + if (arg->on_exit) + *actor->on_exit = *arg->on_exit; + if (arg->kill_time >= 0) + actor->set_kill_time(arg->kill_time); + if (arg->auto_restart) + actor->set_auto_restart(arg->auto_restart); + if (arg->daemon_) + actor->daemonize(); } - return storage_list; } -xbt_dynar_t HostImpl::getAttachedStorageList() +/** Kill all actors hosted here */ +void HostImpl::turn_off() { - xbt_lib_cursor_t cursor; - char *key; - void **data; - xbt_dynar_t result = xbt_dynar_new(sizeof(void*), NULL); - xbt_lib_foreach(storage_lib, cursor, key, data) { - if(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL) != NULL) { - simgrid::surf::Storage *storage = static_cast(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL)); - if(!strcmp((const char*)storage->p_attach,this->getName())){ - xbt_dynar_push_as(result, void *, (void*)storage->getName()); + if (not process_list_.empty()) { + for (auto& actor : process_list_) { + XBT_DEBUG("Killing Actor %s@%s on behalf of %s which turned off that host.", actor.get_cname(), + actor.get_host()->get_cname(), SIMIX_process_self()->get_cname()); + SIMIX_process_self()->kill(&actor); } } - } - return result; -} - -Action *HostImpl::open(const char* fullpath) { - - simgrid::surf::Storage *st = NULL; - s_mount_t mnt; - unsigned int cursor; - size_t longest_prefix_length = 0; - char *path = NULL; - char *file_mount_name = NULL; - char *mount_name = NULL; - - XBT_DEBUG("Search for storage name for '%s' on '%s'", fullpath, getName()); - xbt_dynar_foreach(p_storage,cursor,mnt) - { - XBT_DEBUG("See '%s'",mnt.name); - file_mount_name = (char *) xbt_malloc ((strlen(mnt.name)+1)); - strncpy(file_mount_name,fullpath,strlen(mnt.name)+1); - file_mount_name[strlen(mnt.name)] = '\0'; - - if(!strcmp(file_mount_name,mnt.name) && strlen(mnt.name)>longest_prefix_length) - {/* The current mount name is found in the full path and is bigger than the previous*/ - longest_prefix_length = strlen(mnt.name); - st = static_cast(mnt.storage); - } - free(file_mount_name); - } - if(longest_prefix_length>0) - { /* Mount point found, split fullpath into mount_name and path+filename*/ - path = (char *) xbt_malloc ((strlen(fullpath)-longest_prefix_length+1)); - mount_name = (char *) xbt_malloc ((longest_prefix_length+1)); - strncpy(mount_name, fullpath, longest_prefix_length+1); - strncpy(path, fullpath+longest_prefix_length, strlen(fullpath)-longest_prefix_length+1); - path[strlen(fullpath)-longest_prefix_length] = '\0'; - mount_name[longest_prefix_length] = '\0'; - } - else - xbt_die("Can't find mount point for '%s' on '%s'", fullpath, getName()); - - XBT_DEBUG("OPEN %s on disk '%s'",path, st->getName()); - Action *action = st->open((const char*)mount_name, (const char*)path); - free((char*)path); - free((char*)mount_name); - return action; -} - -Action *HostImpl::close(surf_file_t fd) { - simgrid::surf::Storage *st = findStorageOnMountList(fd->mount); - XBT_DEBUG("CLOSE %s on disk '%s'",fd->name, st->getName()); - return st->close(fd); -} - -Action *HostImpl::read(surf_file_t fd, sg_size_t size) { - simgrid::surf::Storage *st = findStorageOnMountList(fd->mount); - XBT_DEBUG("READ %s on disk '%s'",fd->name, st->getName()); - return st->read(fd, size); -} - -Action *HostImpl::write(surf_file_t fd, sg_size_t size) { - simgrid::surf::Storage *st = findStorageOnMountList(fd->mount); - XBT_DEBUG("WRITE %s on disk '%s'",fd->name, st->getName()); - return st->write(fd, size); -} - -int HostImpl::unlink(surf_file_t fd) { - if (!fd){ - XBT_WARN("No such file descriptor. Impossible to unlink"); - return -1; - } else { - - simgrid::surf::Storage *st = findStorageOnMountList(fd->mount); - /* Check if the file is on this storage */ - if (!xbt_dict_get_or_null(st->p_content, fd->name)){ - XBT_WARN("File %s is not on disk %s. Impossible to unlink", fd->name, - st->getName()); - return -1; - } else { - XBT_DEBUG("UNLINK %s on disk '%s'",fd->name, st->getName()); - st->m_usedSize -= fd->size; - - // Remove the file from storage - xbt_dict_remove(st->p_content, fd->name); - - xbt_free(fd->name); - xbt_free(fd->mount); - xbt_free(fd); - return 0; - } - } -} - -sg_size_t HostImpl::getSize(surf_file_t fd){ - return fd->size; -} - -xbt_dynar_t HostImpl::getInfo( surf_file_t fd) -{ - simgrid::surf::Storage *st = findStorageOnMountList(fd->mount); - sg_size_t *psize = xbt_new(sg_size_t, 1); - *psize = fd->size; - xbt_dynar_t info = xbt_dynar_new(sizeof(void*), NULL); - xbt_dynar_push_as(info, sg_size_t *, psize); - xbt_dynar_push_as(info, void *, fd->mount); - xbt_dynar_push_as(info, void *, (void *)st->getName()); - xbt_dynar_push_as(info, void *, st->p_typeId); - xbt_dynar_push_as(info, void *, st->p_contentType); - - return info; -} - -sg_size_t HostImpl::fileTell(surf_file_t fd){ - return fd->current_position; -} - -int HostImpl::fileSeek(surf_file_t fd, sg_offset_t offset, int origin){ - - switch (origin) { - case SEEK_SET: - fd->current_position = offset; - return 0; - case SEEK_CUR: - fd->current_position += offset; - return 0; - case SEEK_END: - fd->current_position = fd->size + offset; - return 0; - default: - return -1; - } -} - -int HostImpl::fileMove(surf_file_t fd, const char* fullpath){ - /* Check if the new full path is on the same mount point */ - if(!strncmp((const char*)fd->mount, fullpath, strlen(fd->mount))) { - sg_size_t *psize, *new_psize; - psize = (sg_size_t*) - xbt_dict_get_or_null(findStorageOnMountList(fd->mount)->p_content, - fd->name); - new_psize = xbt_new(sg_size_t, 1); - *new_psize = *psize; - if (psize){// src file exists - xbt_dict_remove(findStorageOnMountList(fd->mount)->p_content, fd->name); - char *path = (char *) xbt_malloc ((strlen(fullpath)-strlen(fd->mount)+1)); - strncpy(path, fullpath+strlen(fd->mount), - strlen(fullpath)-strlen(fd->mount)+1); - xbt_dict_set(findStorageOnMountList(fd->mount)->p_content, path, - new_psize,NULL); - XBT_DEBUG("Move file from %s to %s, size '%llu'",fd->name, fullpath, *psize); - free(path); - return 0; - } else { - XBT_WARN("File %s doesn't exist", fd->name); - return -1; - } - } else { - XBT_WARN("New full path %s is not on the same mount point: %s. Action has been canceled.", - fullpath, fd->mount); - return -1; - } -} - -xbt_dynar_t HostImpl::getVms() + // When a host is turned off, we want to keep only the actors that should restart for when it will boot again. + // Then get rid of the others. + auto elm = remove_if(begin(actors_at_boot_), end(actors_at_boot_), [](kernel::actor::ProcessArg* arg) { + if (arg->auto_restart) + return false; + delete arg; + return true; + }); + actors_at_boot_.erase(elm, end(actors_at_boot_)); +} + +std::vector HostImpl::get_all_actors() { - xbt_dynar_t dyn = xbt_dynar_new(sizeof(simgrid::surf::VirtualMachine*), NULL); - - /* iterate for all virtual machines */ - for (simgrid::surf::VMModel::vm_list_t::iterator iter = - simgrid::surf::VMModel::ws_vms.begin(); - iter != simgrid::surf::VMModel::ws_vms.end(); ++iter) { - - simgrid::surf::VirtualMachine *ws_vm = &*iter; - if (this == ws_vm->p_hostPM->extension(simgrid::surf::HostImpl::EXTENSION_ID)) - xbt_dynar_push(dyn, &ws_vm); - } - - return dyn; + std::vector res; + for (auto& actor : process_list_) + res.push_back(actor.ciface()); + return res; } - -void HostImpl::getParams(vm_params_t params) +size_t HostImpl::get_actor_count() { - *params = p_params; + return process_list_.size(); } - -void HostImpl::setParams(vm_params_t params) +std::vector HostImpl::get_attached_storages() { - /* may check something here. */ - p_params = *params; + std::vector storages; + for (auto const& s : storage_) + if (s.second->getHost() == piface_->get_cname()) + storages.push_back(s.second->piface_.get_cname()); + return storages; } }