/* 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 <simgrid/s4u/host.hpp>
-
-#include "src/simix/smx_private.h"
-#include "cpu_cas01.hpp"
-#include "src/surf/HostImpl.hpp"
-#include "simgrid/sg_config.h"
-
-#include "network_interface.hpp"
#include "src/plugins/vm/VirtualMachineImpl.hpp"
+#include "src/surf/FileImpl.hpp"
+#include <string>
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_host, surf, "Logging specific to the SURF host module");
* 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()
+void HostModel::ignoreEmptyVmInPmLMM()
{
/* iterate for all virtual machines */
- for (VirtualMachineImpl* ws_vm : VirtualMachineImpl::allVms_) {
-
- Cpu* cpu = ws_vm->piface_->pimpl_cpu;
-
- int is_active = lmm_constraint_used(cpu->getModel()->getMaxminSystem(), cpu->getConstraint());
+ for (s4u::VirtualMachine* ws_vm : vm::VirtualMachineImpl::allVms_) {
+ Cpu* cpu = ws_vm->pimpl_cpu;
+ int active_tasks = lmm_constraint_get_variable_amount(cpu->constraint());
- if (is_active) {
- /* some tasks exist on this VM */
- XBT_DEBUG("set the weight of the dummy CPU action on PM to 1");
+ /* The impact of the VM over its PM is the min between its vCPU amount and the amount of tasks it contains */
+ int impact = std::min(active_tasks, ws_vm->pimpl_vm_->coreAmount());
- /* 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->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->action_->setPriority(0);
- }
+ XBT_DEBUG("set the weight of the dummy CPU action of VM%p on PM to %d (#tasks: %d)", ws_vm, impact, active_tasks);
+ ws_vm->pimpl_vm_->action_->setPriority(impact);
}
}
+/* Helper function for executeParallelTask */
+static inline double has_cost(double* array, int pos)
+{
+ if (array)
+ return array[pos];
+ else
+ return -1.0;
+}
+
Action* HostModel::executeParallelTask(int host_nb, simgrid::s4u::Host** host_list, double* flops_amount,
- double* bytes_amount, double rate)
+ double* bytes_amount, double rate)
{
-#define cost_or_zero(array,pos) ((array)?(array)[pos]:0.0)
Action* action = nullptr;
- if ((host_nb == 1) && (cost_or_zero(bytes_amount, 0) == 0.0)) {
+ if ((host_nb == 1) && (has_cost(bytes_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)) {
+ } else if ((host_nb == 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_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_nb == 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 (int i = 0; i < host_nb * host_nb; 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], 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");
+ "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");
+ "using the ptask model");
}
} 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");
-#undef cost_or_zero
+ 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");
xbt_free(host_list);
return action;
}
/************
* Resource *
************/
-HostImpl::HostImpl(s4u::Host* host, xbt_dynar_t storage) : storage_(storage), piface_(host)
+HostImpl::HostImpl(s4u::Host* host) : piface_(host)
{
+ /* 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;
}
-/** @brief use destroy() instead of this destructor */
-HostImpl::~HostImpl() = default;
-
-simgrid::surf::Storage* HostImpl::findStorageOnMountList(const char* mount)
+simgrid::surf::StorageImpl* HostImpl::findStorageOnMountList(const char* mount)
{
- simgrid::surf::Storage* st = nullptr;
- s_mount_t mnt;
- unsigned int cursor;
+ XBT_DEBUG("Search for storage name '%s' on '%s'", mount, piface_->cname());
+ if (storage_.find(mount) == storage_.end())
+ xbt_die("Can't find mount '%s' for '%s'", mount, piface_->cname());
- XBT_DEBUG("Search for storage name '%s' on '%s'", mount, piface_->name().c_str());
- xbt_dynar_foreach (storage_, cursor, mnt) {
- XBT_DEBUG("See '%s'", mnt.name);
- if (!strcmp(mount, mnt.name)) {
- st = static_cast<simgrid::surf::Storage*>(mnt.storage);
- break;
- }
- }
- if (!st)
- xbt_die("Can't find mount '%s' for '%s'", mount, piface_->name().c_str());
- return st;
+ return storage_.at(mount);
}
-xbt_dict_t HostImpl::getMountedStorageList()
+void HostImpl::getAttachedStorageList(std::vector<const char*>* storages)
{
- s_mount_t mnt;
- unsigned int i;
- xbt_dict_t storage_list = xbt_dict_new_homogeneous(nullptr);
- char* storage_name = nullptr;
-
- xbt_dynar_foreach (storage_, i, mnt) {
- storage_name = (char*)static_cast<simgrid::surf::Storage*>(mnt.storage)->getName();
- xbt_dict_set(storage_list, mnt.name, storage_name, nullptr);
- }
- return storage_list;
+ for (auto s : storage_)
+ if (s.second->attach_ == piface_->cname())
+ storages->push_back(s.second->piface_.name());
}
-xbt_dynar_t HostImpl::getAttachedStorageList()
+Action* HostImpl::close(surf_file_t fd)
{
- xbt_lib_cursor_t cursor;
- char* key;
- void** data;
- xbt_dynar_t result = xbt_dynar_new(sizeof(void*), nullptr);
- 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) != nullptr) {
- simgrid::surf::Storage* storage = static_cast<simgrid::surf::Storage*>(
- xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL));
- if (!strcmp((const char*)storage->attach_, piface_->name().c_str())) {
- xbt_dynar_push_as(result, void*, (void*)storage->getName());
- }
- }
- }
- return result;
- }
-
- Action* HostImpl::open(const char* fullpath)
- {
-
- simgrid::surf::Storage* st = nullptr;
- s_mount_t mnt;
- unsigned int cursor;
- size_t longest_prefix_length = 0;
- char* path = nullptr;
- char* file_mount_name = nullptr;
- char* mount_name = nullptr;
-
- XBT_DEBUG("Search for storage name for '%s' on '%s'", fullpath, piface_->name().c_str());
- xbt_dynar_foreach (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<simgrid::surf::Storage*>(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, piface_->name().c_str());
-
- 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->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->usedSize_ -= fd->size;
-
- // Remove the file from storage
- xbt_dict_remove(st->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;
- }
+ simgrid::surf::StorageImpl* st = findStorageOnMountList(fd->mount());
+ XBT_DEBUG("CLOSE %s on disk '%s'", fd->cname(), st->cname());
+ return st->close(fd);
+}
- 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*), nullptr);
- 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->typeId_);
- xbt_dynar_push_as(info, void*, st->contentType_);
+Action* HostImpl::read(surf_file_t fd, sg_size_t size)
+{
+ simgrid::surf::StorageImpl* st = findStorageOnMountList(fd->mount());
+ XBT_DEBUG("READ %s on disk '%s'", fd->cname(), st->cname());
+ return st->read(fd, size);
+}
- return info;
- }
+Action* HostImpl::write(surf_file_t fd, sg_size_t size)
+{
+ simgrid::surf::StorageImpl* st = findStorageOnMountList(fd->mount());
+ XBT_DEBUG("WRITE %s on disk '%s'", fd->cname(), st->cname());
+ return st->write(fd, size);
+}
- sg_size_t HostImpl::fileTell(surf_file_t fd)
- {
- return fd->current_position;
- }
+int HostImpl::unlink(surf_file_t fd)
+{
+ if (not fd) {
+ XBT_WARN("No such file descriptor. Impossible to unlink");
+ return -1;
+ } else {
+
+ simgrid::surf::StorageImpl* st = findStorageOnMountList(fd->mount());
+ /* Check if the file is on this storage */
+ if (st->content_->find(fd->cname()) == st->content_->end()) {
+ XBT_WARN("File %s is not on disk %s. Impossible to unlink", fd->cname(), st->cname());
+ return -1;
+ } else {
+ XBT_DEBUG("UNLINK %s on disk '%s'", fd->cname(), st->cname());
+ st->usedSize_ -= fd->size();
- int HostImpl::fileSeek(surf_file_t fd, sg_offset_t offset, int origin)
- {
+ // Remove the file from storage
+ st->content_->erase(fd->cname());
- 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;
- }
+ return 0;
}
+ }
+}
- 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)->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)->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)->content_, path, new_psize, nullptr);
- 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;
- }
+int HostImpl::fileMove(surf_file_t fd, const char* fullpath)
+{
+ /* Check if the new full path is on the same mount point */
+ if (not strncmp(fd->mount(), fullpath, strlen(fd->mount()))) {
+ std::map<std::string, sg_size_t>* content = findStorageOnMountList(fd->mount())->content_;
+ if (content->find(fd->name()) != content->end()) { // src file exists
+ sg_size_t new_size = content->at(fd->name());
+ content->erase(fd->name());
+ std::string path = std::string(fullpath).substr(strlen(fd->mount()), strlen(fullpath));
+ content->insert({path.c_str(), new_size});
+ XBT_DEBUG("Move file from %s to %s, size '%llu'", fd->cname(), fullpath, new_size);
+ return 0;
+ } else {
+ XBT_WARN("File %s doesn't exist", fd->cname());
+ 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;
+ }
+}
- }
- }
+}
+}
