-/* Copyright (c) 2007-2015. The SimGrid Team.
- * All rights reserved. */
+/* Copyright (c) 2007-2017. 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 <dlfcn.h>
+#include <fcntl.h>
+#include <spawn.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
#include "mc/mc.h"
#include "private.h"
#include "private.hpp"
#include "simgrid/s4u/Mailbox.hpp"
+#include "smpi/smpi_shared_malloc.hpp"
#include "simgrid/sg_config.h"
-#include "smpi_mpi_dt_private.h"
#include "src/kernel/activity/SynchroComm.hpp"
#include "src/mc/mc_record.h"
#include "src/mc/mc_replay.h"
#include "src/msg/msg_private.h"
#include "src/simix/smx_private.h"
+#include "src/surf/surf_interface.hpp"
+#include "src/smpi/SmpiHost.hpp"
#include "surf/surf.h"
-#include "xbt/replay.h"
+#include "xbt/replay.hpp"
+#include <xbt/config.hpp>
#include <float.h> /* DBL_MAX */
#include <fstream>
#include <stdio.h>
#include <stdlib.h>
#include <string>
+#include <utility>
#include <vector>
+#include <memory>
+
+#if HAVE_SENDFILE
+#include <sys/sendfile.h>
+#endif
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_kernel, smpi, "Logging specific to SMPI (kernel)");
#include <boost/tokenizer.hpp>
#include <boost/algorithm/string.hpp> /* trim_right / trim_left */
+#ifndef RTLD_DEEPBIND
+/* RTLD_DEEPBIND is a bad idea of GNU ld that obviously does not exist on other platforms
+ * See https://www.akkadia.org/drepper/dsohowto.pdf
+ * and https://lists.freebsd.org/pipermail/freebsd-current/2016-March/060284.html
+*/
+#define RTLD_DEEPBIND 0
+#endif
+
+/* Mac OSX does not have any header file providing that definition so we have to duplicate it here. Bummers. */
+extern char** environ; /* we use it in posix_spawnp below */
+
#if HAVE_PAPI
#include "papi.h"
const char* papi_default_config_name = "default";
#endif
std::unordered_map<std::string, double> location2speedup;
-typedef struct s_smpi_process_data {
- double simulated;
- int *argc;
- char ***argv;
- simgrid::s4u::MailboxPtr mailbox;
- simgrid::s4u::MailboxPtr mailbox_small;
- xbt_mutex_t mailboxes_mutex;
- xbt_os_timer_t timer;
- MPI_Comm comm_self;
- MPI_Comm comm_intra;
- MPI_Comm* comm_world;
- void *data; /* user data */
- int index;
- char state;
- int sampling; /* inside an SMPI_SAMPLE_ block? */
- char* instance_id;
- bool replaying; /* is the process replaying a trace */
- msg_bar_t finalization_barrier;
- int return_value;
- smpi_trace_call_location_t trace_call_loc;
-#if HAVE_PAPI
- /** Contains hardware data as read by PAPI **/
- int papi_event_set;
- papi_counter_t papi_counter_data;
-#endif
-} s_smpi_process_data_t;
-
-static smpi_process_data_t *process_data = nullptr;
+simgrid::smpi::Process **process_data = nullptr;
int process_count = 0;
int smpi_universe_size = 0;
int* index_to_process_data = nullptr;
extern double smpi_total_benched_time;
-extern xbt_dict_t smpi_type_keyvals;
-extern xbt_dict_t smpi_comm_keyvals;
xbt_os_timer_t global_timer;
MPI_Comm MPI_COMM_WORLD = MPI_COMM_UNINITIALIZED;
MPI_Errhandler *MPI_ERRORS_RETURN = nullptr;
MPI_Errhandler *MPI_ERRORS_ARE_FATAL = nullptr;
MPI_Errhandler *MPI_ERRHANDLER_NULL = nullptr;
+static simgrid::config::Flag<double> smpi_wtime_sleep(
+ "smpi/wtime", "Minimum time to inject inside a call to MPI_Wtime", 0.0);
+static simgrid::config::Flag<double> smpi_init_sleep(
+ "smpi/init", "Time to inject inside a call to MPI_Init", 0.0);
-#define MAILBOX_NAME_MAXLEN (5 + sizeof(int) * 2 + 1)
+void (*smpi_comm_copy_data_callback) (smx_activity_t, void*, size_t) = &smpi_comm_copy_buffer_callback;
-static char *get_mailbox_name(char *str, int index)
-{
- snprintf(str, MAILBOX_NAME_MAXLEN, "SMPI-%0*x", static_cast<int> (sizeof(int) * 2), index);
- return str;
-}
-static char *get_mailbox_name_small(char *str, int index)
-{
- snprintf(str, MAILBOX_NAME_MAXLEN, "small%0*x", static_cast<int> (sizeof(int) * 2), index);
- return str;
-}
-void smpi_process_init(int *argc, char ***argv)
+int smpi_process_count()
{
-
- if (process_data == nullptr){
- printf("SimGrid was not initialized properly before entering MPI_Init. Aborting, please check compilation process and use smpirun\n");
- exit(1);
- }
- if (argc != nullptr && argv != nullptr) {
- smx_actor_t proc = SIMIX_process_self();
- proc->context->set_cleanup(&MSG_process_cleanup_from_SIMIX);
- char* instance_id = (*argv)[1];
- int rank = xbt_str_parse_int((*argv)[2], "Invalid rank: %s");
- int index = smpi_process_index_of_smx_process(proc);
-
- if(index_to_process_data == nullptr){
- index_to_process_data=static_cast<int*>(xbt_malloc(SIMIX_process_count()*sizeof(int)));
- }
-
- if(smpi_privatize_global_variables){
- /* Now using segment index of the process */
- index = proc->segment_index;
- /* Done at the process's creation */
- SMPI_switch_data_segment(index);
- }
-
- MPI_Comm* temp_comm_world;
- msg_bar_t temp_bar;
- smpi_deployment_register_process(instance_id, rank, index, &temp_comm_world, &temp_bar);
- smpi_process_data_t data = smpi_process_remote_data(index);
- data->comm_world = temp_comm_world;
- if(temp_bar != nullptr)
- data->finalization_barrier = temp_bar;
- data->index = index;
- data->instance_id = instance_id;
- data->replaying = false;
-
- simdata_process_t simdata = static_cast<simdata_process_t>(simcall_process_get_data(proc));
- simdata->data = data;
-
- if (*argc > 3) {
- memmove(&(*argv)[0], &(*argv)[2], sizeof(char *) * (*argc - 2));
- (*argv)[(*argc) - 1] = nullptr;
- (*argv)[(*argc) - 2] = nullptr;
- }
- (*argc)-=2;
- data->argc = argc;
- data->argv = argv;
- // set the process attached to the mailbox
- simcall_mbox_set_receiver(data->mailbox_small->getImpl(), proc);
- XBT_DEBUG("<%d> New process in the game: %p", index, proc);
- }
- xbt_assert(smpi_process_data(),
- "smpi_process_data() returned nullptr. You probably gave a nullptr parameter to MPI_Init. "
- "Although it's required by MPI-2, this is currently not supported by SMPI.");
+ return process_count;
}
-void smpi_process_destroy()
+simgrid::smpi::Process* smpi_process()
{
- int index = smpi_process_index();
- if(smpi_privatize_global_variables){
- smpi_switch_data_segment(index);
- }
- process_data[index_to_process_data[index]]->state = SMPI_FINALIZED;
- XBT_DEBUG("<%d> Process left the game", index);
+ smx_actor_t me = SIMIX_process_self();
+ if (me == nullptr) // This happens sometimes (eg, when linking against NS3 because it pulls openMPI...)
+ return nullptr;
+ simgrid::MsgActorExt* msgExt = static_cast<simgrid::MsgActorExt*>(me->data);
+ return static_cast<simgrid::smpi::Process*>(msgExt->data);
}
-/** @brief Prepares the current process for termination. */
-void smpi_process_finalize()
+simgrid::smpi::Process* smpi_process_remote(int index)
{
- // This leads to an explosion of the search graph which cannot be reduced:
- if(MC_is_active() || MC_record_replay_is_active())
- return;
-
- int index = smpi_process_index();
- // wait for all pending asynchronous comms to finish
- MSG_barrier_wait(process_data[index_to_process_data[index]]->finalization_barrier);
+ return process_data[index_to_process_data[index]];
}
-/** @brief Check if a process is finalized */
-int smpi_process_finalized()
-{
- int index = smpi_process_index();
- if (index != MPI_UNDEFINED)
- return (process_data[index_to_process_data[index]]->state == SMPI_FINALIZED);
- else
- return 0;
+MPI_Comm smpi_process_comm_self(){
+ return smpi_process()->comm_self();
}
-/** @brief Check if a process is initialized */
-int smpi_process_initialized()
-{
- if (index_to_process_data == nullptr){
- return false;
- } else{
- int index = smpi_process_index();
- return ((index != MPI_UNDEFINED) && (process_data[index_to_process_data[index]]->state == SMPI_INITIALIZED));
- }
+void smpi_process_init(int *argc, char ***argv){
+ simgrid::smpi::Process::init(argc, argv);
}
-/** @brief Mark a process as initialized (=MPI_Init called) */
-void smpi_process_mark_as_initialized()
-{
- int index = smpi_process_index();
- if ((index != MPI_UNDEFINED) && (process_data[index_to_process_data[index]]->state != SMPI_FINALIZED))
- process_data[index_to_process_data[index]]->state = SMPI_INITIALIZED;
+int smpi_process_index(){
+ return smpi_process()->index();
}
-void smpi_process_set_replaying(bool value){
- int index = smpi_process_index();
- if ((index != MPI_UNDEFINED) && (process_data[index_to_process_data[index]]->state != SMPI_FINALIZED))
- process_data[index_to_process_data[index]]->replaying = value;
+void * smpi_process_get_user_data(){
+ return smpi_process()->get_user_data();
}
-bool smpi_process_get_replaying(){
- int index = smpi_process_index();
- if (index != MPI_UNDEFINED)
- return process_data[index_to_process_data[index]]->replaying;
- else return (_xbt_replay_is_active() != 0);
+void smpi_process_set_user_data(void *data){
+ return smpi_process()->set_user_data(data);
}
+
int smpi_global_size()
{
char *value = getenv("SMPI_GLOBAL_SIZE");
return xbt_str_parse_int(value, "SMPI_GLOBAL_SIZE contains a non-numerical value: %s");
}
-smpi_process_data_t smpi_process_data()
-{
- simdata_process_t simdata = static_cast<simdata_process_t>(SIMIX_process_self_get_data());
- return static_cast<smpi_process_data_t>(simdata->data);
-}
-
-smpi_process_data_t smpi_process_remote_data(int index)
-{
- return process_data[index_to_process_data[index]];
-}
-
-void smpi_process_set_user_data(void *data)
-{
- smpi_process_data_t process_data = smpi_process_data();
- process_data->data = data;
-}
-
-void *smpi_process_get_user_data()
+void smpi_comm_set_copy_data_callback(void (*callback) (smx_activity_t, void*, size_t))
{
- smpi_process_data_t process_data = smpi_process_data();
- return process_data->data;
+ smpi_comm_copy_data_callback = callback;
}
-int smpi_process_count()
-{
- return process_count;
-}
-
-/**
- * \brief Returns a structure that stores the location (filename + linenumber)
- * of the last calls to MPI_* functions.
- *
- * \see smpi_trace_set_call_location
- */
-smpi_trace_call_location_t* smpi_process_get_call_location()
-{
- smpi_process_data_t process_data = smpi_process_data();
- return &process_data->trace_call_loc;
-}
-
-int smpi_process_index()
-{
- smpi_process_data_t data = smpi_process_data();
- //return -1 if not initialized
- return data != nullptr ? data->index : MPI_UNDEFINED;
-}
-
-MPI_Comm smpi_process_comm_world()
-{
- smpi_process_data_t data = smpi_process_data();
- //return MPI_COMM_NULL if not initialized
- return data != nullptr ? *data->comm_world : MPI_COMM_NULL;
-}
-
-smx_mailbox_t smpi_process_mailbox()
-{
- smpi_process_data_t data = smpi_process_data();
- return data->mailbox->getImpl();
-}
-
-smx_mailbox_t smpi_process_mailbox_small()
-{
- smpi_process_data_t data = smpi_process_data();
- return data->mailbox_small->getImpl();
-}
-
-xbt_mutex_t smpi_process_mailboxes_mutex()
-{
- smpi_process_data_t data = smpi_process_data();
- return data->mailboxes_mutex;
-}
-
-smx_mailbox_t smpi_process_remote_mailbox(int index)
-{
- smpi_process_data_t data = smpi_process_remote_data(index);
- return data->mailbox->getImpl();
-}
-
-smx_mailbox_t smpi_process_remote_mailbox_small(int index)
-{
- smpi_process_data_t data = smpi_process_remote_data(index);
- return data->mailbox_small->getImpl();
-}
-
-xbt_mutex_t smpi_process_remote_mailboxes_mutex(int index)
-{
- smpi_process_data_t data = smpi_process_remote_data(index);
- return data->mailboxes_mutex;
-}
-
-#if HAVE_PAPI
-int smpi_process_papi_event_set(void)
-{
- smpi_process_data_t data = smpi_process_data();
- return data->papi_event_set;
-}
-
-papi_counter_t& smpi_process_papi_counters(void)
-{
- smpi_process_data_t data = smpi_process_data();
- return data->papi_counter_data;
-}
-#endif
-
-xbt_os_timer_t smpi_process_timer()
-{
- smpi_process_data_t data = smpi_process_data();
- return data->timer;
-}
-
-void smpi_process_simulated_start()
-{
- smpi_process_data_t data = smpi_process_data();
- data->simulated = SIMIX_get_clock();
-}
-
-double smpi_process_simulated_elapsed()
-{
- smpi_process_data_t data = smpi_process_data();
- return SIMIX_get_clock() - data->simulated;
+static void print(std::vector<std::pair<size_t, size_t>> vec) {
+ std::fprintf(stderr, "{");
+ for (auto elt : vec) {
+ std::fprintf(stderr, "(0x%zx, 0x%zx),", elt.first, elt.second);
+ }
+ std::fprintf(stderr, "}\n");
}
-
-MPI_Comm smpi_process_comm_self()
+static void memcpy_private(void* dest, const void* src, std::vector<std::pair<size_t, size_t>>& private_blocks)
{
- smpi_process_data_t data = smpi_process_data();
- if(data->comm_self==MPI_COMM_NULL){
- MPI_Group group = smpi_group_new(1);
- data->comm_self = smpi_comm_new(group, nullptr);
- smpi_group_set_mapping(group, smpi_process_index(), 0);
+ for(auto block : private_blocks) {
+ memcpy((uint8_t*)dest+block.first, (uint8_t*)src+block.first, block.second-block.first);
}
-
- return data->comm_self;
-}
-
-MPI_Comm smpi_process_get_comm_intra()
-{
- smpi_process_data_t data = smpi_process_data();
- return data->comm_intra;
-}
-
-void smpi_process_set_comm_intra(MPI_Comm comm)
-{
- smpi_process_data_t data = smpi_process_data();
- data->comm_intra = comm;
-}
-
-void smpi_process_set_sampling(int s)
-{
- smpi_process_data_t data = smpi_process_data();
- data->sampling = s;
-}
-
-int smpi_process_get_sampling()
-{
- smpi_process_data_t data = smpi_process_data();
- return data->sampling;
}
-void print_request(const char *message, MPI_Request request)
-{
- XBT_VERB("%s request %p [buf = %p, size = %zu, src = %d, dst = %d, tag = %d, flags = %x]",
- message, request, request->buf, request->size, request->src, request->dst, request->tag, request->flags);
+static void check_blocks(std::vector<std::pair<size_t, size_t>> &private_blocks, size_t buff_size) {
+ for(auto block : private_blocks) {
+ xbt_assert(block.first <= block.second && block.second <= buff_size, "Oops, bug in shared malloc.");
+ }
}
void smpi_comm_copy_buffer_callback(smx_activity_t synchro, void *buff, size_t buff_size)
{
+ simgrid::kernel::activity::Comm *comm = dynamic_cast<simgrid::kernel::activity::Comm*>(synchro);
+ int src_shared = 0;
+ int dst_shared = 0;
+ size_t src_offset = 0;
+ size_t dst_offset = 0;
+ std::vector<std::pair<size_t, size_t>> src_private_blocks;
+ std::vector<std::pair<size_t, size_t>> dst_private_blocks;
XBT_DEBUG("Copy the data over");
+ if((src_shared=smpi_is_shared(buff, src_private_blocks, &src_offset))) {
+ XBT_DEBUG("Sender %p is shared. Let's ignore it.", buff);
+ src_private_blocks = shift_and_frame_private_blocks(src_private_blocks, src_offset, buff_size);
+ }
+ else {
+ src_private_blocks.clear();
+ src_private_blocks.push_back(std::make_pair(0, buff_size));
+ }
+ if((dst_shared=smpi_is_shared((char*)comm->dst_buff, dst_private_blocks, &dst_offset))) {
+ XBT_DEBUG("Receiver %p is shared. Let's ignore it.", (char*)comm->dst_buff);
+ dst_private_blocks = shift_and_frame_private_blocks(dst_private_blocks, dst_offset, buff_size);
+ }
+ else {
+ dst_private_blocks.clear();
+ dst_private_blocks.push_back(std::make_pair(0, buff_size));
+ }
+ check_blocks(src_private_blocks, buff_size);
+ check_blocks(dst_private_blocks, buff_size);
+ auto private_blocks = merge_private_blocks(src_private_blocks, dst_private_blocks);
+ check_blocks(private_blocks, buff_size);
void* tmpbuff=buff;
- simgrid::kernel::activity::Comm *comm = dynamic_cast<simgrid::kernel::activity::Comm*>(synchro);
-
- if((smpi_privatize_global_variables) && (static_cast<char*>(buff) >= smpi_start_data_exe)
+ if((smpi_privatize_global_variables == SMPI_PRIVATIZE_MMAP) && (static_cast<char*>(buff) >= smpi_start_data_exe)
&& (static_cast<char*>(buff) < smpi_start_data_exe + smpi_size_data_exe )
){
XBT_DEBUG("Privatization : We are copying from a zone inside global memory... Saving data to temp buffer !");
-
- smpi_switch_data_segment((static_cast<smpi_process_data_t>((static_cast<simdata_process_t>(SIMIX_process_get_data(comm->src_proc))->data))->index));
+ smpi_switch_data_segment(
+ (static_cast<simgrid::smpi::Process*>((static_cast<simgrid::MsgActorExt*>(comm->src_proc->data)->data))->index()));
tmpbuff = static_cast<void*>(xbt_malloc(buff_size));
- memcpy(tmpbuff, buff, buff_size);
+ memcpy_private(tmpbuff, buff, private_blocks);
}
- if((smpi_privatize_global_variables) && ((char*)comm->dst_buff >= smpi_start_data_exe)
+ if((smpi_privatize_global_variables == SMPI_PRIVATIZE_MMAP) && ((char*)comm->dst_buff >= smpi_start_data_exe)
&& ((char*)comm->dst_buff < smpi_start_data_exe + smpi_size_data_exe )){
XBT_DEBUG("Privatization : We are copying to a zone inside global memory - Switch data segment");
- smpi_switch_data_segment((static_cast<smpi_process_data_t>((static_cast<simdata_process_t>(SIMIX_process_get_data(comm->dst_proc))->data))->index));
+ smpi_switch_data_segment(
+ (static_cast<simgrid::smpi::Process*>((static_cast<simgrid::MsgActorExt*>(comm->dst_proc->data)->data))->index()));
}
+ XBT_DEBUG("Copying %zu bytes from %p to %p", buff_size, tmpbuff,comm->dst_buff);
+ memcpy_private(comm->dst_buff, tmpbuff, private_blocks);
- memcpy(comm->dst_buff, tmpbuff, buff_size);
if (comm->detached) {
// if this is a detached send, the source buffer was duplicated by SMPI
// sender to make the original buffer available to the application ASAP
//xbt_free(comm->comm.src_data);// inside SMPI the request is kept inside the user data and should be free
comm->src_buff = nullptr;
}
-
if(tmpbuff!=buff)xbt_free(tmpbuff);
+
}
void smpi_comm_null_copy_buffer_callback(smx_activity_t comm, void *buff, size_t buff_size)
void smpi_global_init()
{
- int i;
MPI_Group group;
- char name[MAILBOX_NAME_MAXLEN];
- int smpirun=0;
if (!MC_is_active()) {
global_timer = xbt_os_timer_new();
}
}
#endif
+
+ int smpirun = 0;
+ msg_bar_t finalization_barrier = nullptr;
if (process_count == 0){
process_count = SIMIX_process_count();
smpirun=1;
+ finalization_barrier = MSG_barrier_init(process_count);
}
smpi_universe_size = process_count;
- process_data = new smpi_process_data_t[process_count];
- for (i = 0; i < process_count; i++) {
- process_data[i] = new s_smpi_process_data_t;
- process_data[i]->argc = nullptr;
- process_data[i]->argv = nullptr;
- process_data[i]->mailbox = simgrid::s4u::Mailbox::byName(get_mailbox_name(name, i));
- process_data[i]->mailbox_small = simgrid::s4u::Mailbox::byName(get_mailbox_name_small(name, i));
- process_data[i]->mailboxes_mutex = xbt_mutex_init();
- process_data[i]->timer = xbt_os_timer_new();
- if (MC_is_active())
- MC_ignore_heap(process_data[i]->timer, xbt_os_timer_size());
- process_data[i]->comm_self = MPI_COMM_NULL;
- process_data[i]->comm_intra = MPI_COMM_NULL;
- process_data[i]->comm_world = nullptr;
- process_data[i]->state = SMPI_UNINITIALIZED;
- process_data[i]->sampling = 0;
- process_data[i]->finalization_barrier = nullptr;
- process_data[i]->return_value = 0;
-
-#if HAVE_PAPI
- if (xbt_cfg_get_string("smpi/papi-events")[0] != '\0') {
- // TODO: Implement host/process/thread based counters. This implementation
- // just always takes the values passed via "default", like this:
- // "default:COUNTER1:COUNTER2:COUNTER3;".
- auto it = units2papi_setup.find(papi_default_config_name);
- if (it != units2papi_setup.end()) {
- process_data[i]->papi_event_set = it->second.event_set;
- process_data[i]->papi_counter_data = it->second.counter_data;
- XBT_DEBUG("Setting PAPI set for process %i", i);
- } else {
- process_data[i]->papi_event_set = PAPI_NULL;
- XBT_DEBUG("No PAPI set for process %i", i);
- }
- }
-#endif
+ process_data = new simgrid::smpi::Process*[process_count];
+ for (int i = 0; i < process_count; i++) {
+ process_data[i] = new simgrid::smpi::Process(i, finalization_barrier);
}
//if the process was launched through smpirun script we generate a global mpi_comm_world
//if not, we let MPI_COMM_NULL, and the comm world will be private to each mpi instance
- if(smpirun){
- group = smpi_group_new(process_count);
- MPI_COMM_WORLD = smpi_comm_new(group, nullptr);
+ if (smpirun) {
+ group = new simgrid::smpi::Group(process_count);
+ MPI_COMM_WORLD = new simgrid::smpi::Comm(group, nullptr);
MPI_Attr_put(MPI_COMM_WORLD, MPI_UNIVERSE_SIZE, reinterpret_cast<void *>(process_count));
- msg_bar_t bar = MSG_barrier_init(process_count);
- for (i = 0; i < process_count; i++) {
- smpi_group_set_mapping(group, i, i);
- process_data[i]->finalization_barrier = bar;
- }
+ for (int i = 0; i < process_count; i++)
+ group->set_mapping(i, i);
}
}
int count = smpi_process_count();
smpi_bench_destroy();
+ smpi_shared_destroy();
if (MPI_COMM_WORLD != MPI_COMM_UNINITIALIZED){
- while (smpi_group_unuse(smpi_comm_group(MPI_COMM_WORLD)) > 0);
- MSG_barrier_destroy(process_data[0]->finalization_barrier);
+ delete MPI_COMM_WORLD->group();
+ MSG_barrier_destroy(process_data[0]->finalization_barrier());
}else{
smpi_deployment_cleanup_instances();
}
for (int i = 0; i < count; i++) {
- if(process_data[i]->comm_self!=MPI_COMM_NULL){
- smpi_comm_destroy(process_data[i]->comm_self);
+ if(process_data[i]->comm_self()!=MPI_COMM_NULL){
+ simgrid::smpi::Comm::destroy(process_data[i]->comm_self());
}
- if(process_data[i]->comm_intra!=MPI_COMM_NULL){
- smpi_comm_destroy(process_data[i]->comm_intra);
+ if(process_data[i]->comm_intra()!=MPI_COMM_NULL){
+ simgrid::smpi::Comm::destroy(process_data[i]->comm_intra());
}
- xbt_os_timer_free(process_data[i]->timer);
- xbt_mutex_destroy(process_data[i]->mailboxes_mutex);
+ xbt_os_timer_free(process_data[i]->timer());
+ xbt_mutex_destroy(process_data[i]->mailboxes_mutex());
delete process_data[i];
}
delete[] process_data;
process_data = nullptr;
if (MPI_COMM_WORLD != MPI_COMM_UNINITIALIZED){
- smpi_comm_cleanup_smp(MPI_COMM_WORLD);
- smpi_comm_cleanup_attributes(MPI_COMM_WORLD);
- if(smpi_coll_cleanup_callback!=nullptr)
- smpi_coll_cleanup_callback();
- xbt_free(MPI_COMM_WORLD);
+ MPI_COMM_WORLD->cleanup_smp();
+ MPI_COMM_WORLD->cleanup_attr<simgrid::smpi::Comm>();
+ if(simgrid::smpi::Colls::smpi_coll_cleanup_callback!=nullptr)
+ simgrid::smpi::Colls::smpi_coll_cleanup_callback();
+ delete MPI_COMM_WORLD;
}
MPI_COMM_WORLD = MPI_COMM_NULL;
}
xbt_free(index_to_process_data);
- if(smpi_type_keyvals!=nullptr)
- xbt_dict_free(&smpi_type_keyvals);
- if(smpi_comm_keyvals!=nullptr)
- xbt_dict_free(&smpi_comm_keyvals);
- if(smpi_privatize_global_variables)
+ if(smpi_privatize_global_variables == SMPI_PRIVATIZE_MMAP)
smpi_destroy_global_memory_segments();
smpi_free_static();
}
-#ifndef WIN32
-
-void __attribute__ ((weak)) user_main_()
-{
- xbt_die("Should not be in this smpi_simulated_main");
-}
-
-int __attribute__ ((weak)) smpi_simulated_main_(int argc, char **argv)
-{
- smpi_process_init(&argc, &argv);
- user_main_();
- return 0;
-}
-
-inline static int smpi_main_wrapper(int argc, char **argv){
- int ret = smpi_simulated_main_(argc,argv);
- if(ret !=0){
- XBT_WARN("SMPI process did not return 0. Return value : %d", ret);
- smpi_process_data()->return_value=ret;
- }
- return 0;
-}
-
-int __attribute__ ((weak)) main(int argc, char **argv)
-{
- return smpi_main(smpi_main_wrapper, argc, argv);
-}
-
-#endif
-
extern "C" {
+
static void smpi_init_logs(){
/* Connect log categories. See xbt/log.c */
XBT_LOG_CONNECT(smpi); /* Keep this line as soon as possible in this function: xbt_log_appender_file.c depends on it
DO NOT connect this in XBT or so, or it will be useless to xbt_log_appender_file.c */
XBT_LOG_CONNECT(instr_smpi);
- XBT_LOG_CONNECT(smpi_base);
XBT_LOG_CONNECT(smpi_bench);
XBT_LOG_CONNECT(smpi_coll);
XBT_LOG_CONNECT(smpi_colls);
XBT_LOG_CONNECT(smpi_comm);
+ XBT_LOG_CONNECT(smpi_datatype);
XBT_LOG_CONNECT(smpi_dvfs);
XBT_LOG_CONNECT(smpi_group);
XBT_LOG_CONNECT(smpi_kernel);
XBT_LOG_CONNECT(smpi_mpi);
- XBT_LOG_CONNECT(smpi_mpi_dt);
+ XBT_LOG_CONNECT(smpi_memory);
+ XBT_LOG_CONNECT(smpi_op);
XBT_LOG_CONNECT(smpi_pmpi);
+ XBT_LOG_CONNECT(smpi_request);
XBT_LOG_CONNECT(smpi_replay);
XBT_LOG_CONNECT(smpi_rma);
+ XBT_LOG_CONNECT(smpi_shared);
+ XBT_LOG_CONNECT(smpi_utils);
}
}
static void smpi_init_options(){
- int gather_id = find_coll_description(mpi_coll_gather_description, xbt_cfg_get_string("smpi/gather"),"gather");
- mpi_coll_gather_fun = reinterpret_cast<int (*)(void *, int, MPI_Datatype, void *, int, MPI_Datatype, int, MPI_Comm)>
- (mpi_coll_gather_description[gather_id].coll);
-
- int allgather_id = find_coll_description(mpi_coll_allgather_description,
- xbt_cfg_get_string("smpi/allgather"),"allgather");
- mpi_coll_allgather_fun = reinterpret_cast<int (*)(void *, int, MPI_Datatype, void *, int, MPI_Datatype, MPI_Comm)>
- (mpi_coll_allgather_description[allgather_id].coll);
-
- int allgatherv_id = find_coll_description(mpi_coll_allgatherv_description,
- xbt_cfg_get_string("smpi/allgatherv"),"allgatherv");
- mpi_coll_allgatherv_fun = reinterpret_cast<int (*)(void *, int, MPI_Datatype, void *, int *, int *, MPI_Datatype, MPI_Comm)>
- (mpi_coll_allgatherv_description[allgatherv_id].coll);
-
- int allreduce_id = find_coll_description(mpi_coll_allreduce_description,
- xbt_cfg_get_string("smpi/allreduce"),"allreduce");
- mpi_coll_allreduce_fun = reinterpret_cast<int (*)(void *sbuf, void *rbuf, int rcount, MPI_Datatype dtype, MPI_Op op, MPI_Comm comm)>
- (mpi_coll_allreduce_description[allreduce_id].coll);
-
- int alltoall_id = find_coll_description(mpi_coll_alltoall_description,
- xbt_cfg_get_string("smpi/alltoall"),"alltoall");
- mpi_coll_alltoall_fun = reinterpret_cast<int (*)(void *, int, MPI_Datatype, void *, int, MPI_Datatype, MPI_Comm)>
- (mpi_coll_alltoall_description[alltoall_id].coll);
-
- int alltoallv_id = find_coll_description(mpi_coll_alltoallv_description,
- xbt_cfg_get_string("smpi/alltoallv"),"alltoallv");
- mpi_coll_alltoallv_fun = reinterpret_cast<int (*)(void *, int *, int *, MPI_Datatype, void *, int *, int *, MPI_Datatype, MPI_Comm)>
- (mpi_coll_alltoallv_description[alltoallv_id].coll);
-
- int bcast_id = find_coll_description(mpi_coll_bcast_description, xbt_cfg_get_string("smpi/bcast"),"bcast");
- mpi_coll_bcast_fun = reinterpret_cast<int (*)(void *buf, int count, MPI_Datatype datatype, int root, MPI_Comm com)>
- (mpi_coll_bcast_description[bcast_id].coll);
-
- int reduce_id = find_coll_description(mpi_coll_reduce_description, xbt_cfg_get_string("smpi/reduce"),"reduce");
- mpi_coll_reduce_fun = reinterpret_cast<int (*)(void *buf, void *rbuf, int count, MPI_Datatype datatype, MPI_Op op, int root, MPI_Comm comm)>
- (mpi_coll_reduce_description[reduce_id].coll);
-
- int reduce_scatter_id =
- find_coll_description(mpi_coll_reduce_scatter_description,
- xbt_cfg_get_string("smpi/reduce-scatter"),"reduce_scatter");
- mpi_coll_reduce_scatter_fun = reinterpret_cast<int (*)(void *sbuf, void *rbuf, int *rcounts,MPI_Datatype dtype, MPI_Op op, MPI_Comm comm)>
- (mpi_coll_reduce_scatter_description[reduce_scatter_id].coll);
-
- int scatter_id = find_coll_description(mpi_coll_scatter_description, xbt_cfg_get_string("smpi/scatter"),"scatter");
- mpi_coll_scatter_fun = reinterpret_cast<int (*)(void *sendbuf, int sendcount, MPI_Datatype sendtype, void *recvbuf,int recvcount, MPI_Datatype recvtype, int root, MPI_Comm comm)>
- (mpi_coll_scatter_description[scatter_id].coll);
-
- int barrier_id = find_coll_description(mpi_coll_barrier_description, xbt_cfg_get_string("smpi/barrier"),"barrier");
- mpi_coll_barrier_fun = reinterpret_cast<int (*)(MPI_Comm comm)>
- (mpi_coll_barrier_description[barrier_id].coll);
-
- smpi_coll_cleanup_callback=nullptr;
+ //return if already called
+ if (smpi_cpu_threshold > -1)
+ return;
+ simgrid::smpi::Colls::set_collectives();
+ simgrid::smpi::Colls::smpi_coll_cleanup_callback=nullptr;
smpi_cpu_threshold = xbt_cfg_get_double("smpi/cpu-threshold");
smpi_host_speed = xbt_cfg_get_double("smpi/host-speed");
- smpi_privatize_global_variables = xbt_cfg_get_boolean("smpi/privatize-global-variables");
+ const char* smpi_privatize_option = xbt_cfg_get_string("smpi/privatization");
+ if (std::strcmp(smpi_privatize_option, "no") == 0)
+ smpi_privatize_global_variables = SMPI_PRIVATIZE_NONE;
+ else if (std::strcmp(smpi_privatize_option, "yes") == 0)
+ smpi_privatize_global_variables = SMPI_PRIVATIZE_DEFAULT;
+ else if (std::strcmp(smpi_privatize_option, "mmap") == 0)
+ smpi_privatize_global_variables = SMPI_PRIVATIZE_MMAP;
+ else if (std::strcmp(smpi_privatize_option, "dlopen") == 0)
+ smpi_privatize_global_variables = SMPI_PRIVATIZE_DLOPEN;
+
+ // Some compatibility stuff:
+ else if (std::strcmp(smpi_privatize_option, "1") == 0)
+ smpi_privatize_global_variables = SMPI_PRIVATIZE_DEFAULT;
+ else if (std::strcmp(smpi_privatize_option, "0") == 0)
+ smpi_privatize_global_variables = SMPI_PRIVATIZE_NONE;
+
+ else
+ xbt_die("Invalid value for smpi/privatization: '%s'", smpi_privatize_option);
+
+#if defined(__FreeBSD__)
+ if (smpi_privatize_global_variables == SMPI_PRIVATIZE_MMAP) {
+ XBT_INFO("Mixing mmap privatization is broken on FreeBSD, switching to dlopen privatization instead.");
+ smpi_privatize_global_variables = SMPI_PRIVATIZE_DLOPEN;
+ }
+#endif
+
if (smpi_cpu_threshold < 0)
smpi_cpu_threshold = DBL_MAX;
+
+ char* val = xbt_cfg_get_string("smpi/shared-malloc");
+ if (!strcasecmp(val, "yes") || !strcmp(val, "1") || !strcasecmp(val, "on") || !strcasecmp(val, "global")) {
+ smpi_cfg_shared_malloc = shmalloc_global;
+ } else if (!strcasecmp(val, "local")) {
+ smpi_cfg_shared_malloc = shmalloc_local;
+ } else if (!strcasecmp(val, "no") || !strcmp(val, "0") || !strcasecmp(val, "off")) {
+ smpi_cfg_shared_malloc = shmalloc_none;
+ } else {
+ xbt_die("Invalid value '%s' for option smpi/shared-malloc. Possible values: 'on' or 'global', 'local', 'off'",
+ val);
+ }
+}
+
+typedef std::function<int(int argc, char *argv[])> smpi_entry_point_type;
+typedef int (* smpi_c_entry_point_type)(int argc, char **argv);
+typedef void (*smpi_fortran_entry_point_type)();
+
+static int smpi_run_entry_point(smpi_entry_point_type entry_point, std::vector<std::string> args)
+{
+ const int argc = args.size();
+ std::unique_ptr<char*[]> argv(new char*[argc + 1]);
+ for (int i = 0; i != argc; ++i)
+ argv[i] = args[i].empty() ? const_cast<char*>(""): &args[i].front();
+ argv[argc] = nullptr;
+
+ int res = entry_point(argc, argv.get());
+ if (res != 0){
+ XBT_WARN("SMPI process did not return 0. Return value : %d", res);
+ smpi_process()->set_return_value(res);
+ }
+ return 0;
+}
+
+// TODO, remove the number of functions involved here
+static smpi_entry_point_type smpi_resolve_function(void* handle)
+{
+ smpi_fortran_entry_point_type entry_point_fortran = (smpi_fortran_entry_point_type)dlsym(handle, "user_main_");
+ if (entry_point_fortran != nullptr) {
+ return [entry_point_fortran](int argc, char** argv) {
+ smpi_process_init(&argc, &argv);
+ entry_point_fortran();
+ return 0;
+ };
+ }
+
+ smpi_c_entry_point_type entry_point = (smpi_c_entry_point_type)dlsym(handle, "main");
+ if (entry_point != nullptr) {
+ return entry_point;
+ }
+
+ return smpi_entry_point_type();
}
-int smpi_main(int (*realmain) (int argc, char *argv[]), int argc, char *argv[])
+int smpi_main(const char* executable, int argc, char *argv[])
{
srand(SMPI_RAND_SEED);
* configuration tools */
return 0;
}
- smpi_init_logs();
TRACE_global_init(&argc, argv);
- TRACE_add_start_function(TRACE_smpi_alloc);
- TRACE_add_end_function(TRACE_smpi_release);
SIMIX_global_init(&argc, argv);
MSG_init(&argc,argv);
- SMPI_switch_data_segment = smpi_switch_data_segment;
+ SMPI_switch_data_segment = &smpi_switch_data_segment;
- smpi_init_options();
+ simgrid::s4u::Host::onCreation.connect([](simgrid::s4u::Host& host) {
+ host.extension_set(new simgrid::smpi::SmpiHost(&host));
+ });
// parse the platform file: get the host list
SIMIX_create_environment(argv[1]);
- SIMIX_comm_set_copy_data_callback(&smpi_comm_copy_buffer_callback);
- SIMIX_function_register_default(realmain);
- SIMIX_launch_application(argv[2]);
+ SIMIX_comm_set_copy_data_callback(smpi_comm_copy_buffer_callback);
- smpi_global_init();
+ static std::size_t rank = 0;
- smpi_check_options();
+ smpi_init_options();
- if(smpi_privatize_global_variables)
- smpi_initialize_global_memory_segments();
+ if (smpi_privatize_global_variables == SMPI_PRIVATIZE_DLOPEN) {
+
+ std::string executable_copy = executable;
+
+ // Prepare the copy of the binary (get its size)
+ struct stat fdin_stat;
+ stat(executable_copy.c_str(), &fdin_stat);
+ off_t fdin_size = fdin_stat.st_size;
+
+ simix_global->default_function = [executable_copy, fdin_size](std::vector<std::string> args) {
+ return std::function<void()>([executable_copy, fdin_size, args] {
+
+ // Copy the dynamic library:
+ std::string target_executable = executable_copy
+ + "_" + std::to_string(getpid())
+ + "_" + std::to_string(rank++) + ".so";
+
+ int fdin = open(executable_copy.c_str(), O_RDONLY);
+ xbt_assert(fdin >= 0, "Cannot read from %s", executable_copy.c_str());
+ int fdout = open(target_executable.c_str(), O_CREAT | O_RDWR, S_IRWXU);
+ xbt_assert(fdout >= 0, "Cannot write into %s", target_executable.c_str());
+
+#if HAVE_SENDFILE
+ ssize_t sent_size = sendfile(fdout, fdin, NULL, fdin_size);
+ xbt_assert(sent_size == fdin_size,
+ "Error while copying %s: only %zd bytes copied instead of %ld (errno: %d -- %s)",
+ target_executable.c_str(), sent_size, fdin_size, errno, strerror(errno));
+#else
+ XBT_VERB("Copy %d bytes into %s", static_cast<int>(fdin_size), target_executable.c_str());
+ const int bufsize = 1024 * 1024 * 4;
+ char buf[bufsize];
+ while (int got = read(fdin, buf, bufsize)) {
+ if (got == -1) {
+ xbt_assert(errno == EINTR, "Cannot read from %s", executable_copy.c_str());
+ } else {
+ char* p = buf;
+ int todo = got;
+ while (int done = write(fdout, p, todo)) {
+ if (done == -1) {
+ xbt_assert(errno == EINTR, "Cannot write into %s", target_executable.c_str());
+ } else {
+ p += done;
+ todo -= done;
+ }
+ }
+ }
+ }
+#endif
+ close(fdin);
+ close(fdout);
+
+ // Load the copy and resolve the entry point:
+ void* handle = dlopen(target_executable.c_str(), RTLD_LAZY | RTLD_LOCAL | RTLD_DEEPBIND);
+ if (xbt_cfg_get_boolean("smpi/keep-temps") == false)
+ unlink(target_executable.c_str());
+ if (handle == nullptr)
+ xbt_die("dlopen failed: %s (errno: %d -- %s)", dlerror(), errno, strerror(errno));
+ smpi_entry_point_type entry_point = smpi_resolve_function(handle);
+ if (!entry_point)
+ xbt_die("Could not resolve entry point");
+
+ smpi_run_entry_point(entry_point, args);
+ });
+ };
+
+ }
+ else {
+
+ // Load the dynamic library and resolve the entry point:
+ void* handle = dlopen(executable, RTLD_LAZY | RTLD_LOCAL | RTLD_DEEPBIND);
+ if (handle == nullptr)
+ xbt_die("dlopen failed for %s: %s (errno: %d -- %s)", executable, dlerror(), errno, strerror(errno));
+ smpi_entry_point_type entry_point = smpi_resolve_function(handle);
+ if (!entry_point)
+ xbt_die("main not found in %s", executable);
+ // TODO, register the executable for SMPI privatization
+
+ // Execute the same entry point for each simulated process:
+ simix_global->default_function = [entry_point](std::vector<std::string> args) {
+ return std::function<void()>([entry_point, args] {
+ smpi_run_entry_point(entry_point, args);
+ });
+ };
+
+ }
+
+ SIMIX_launch_application(argv[2]);
+
+ SMPI_init();
/* Clean IO before the run */
fflush(stdout);
int count = smpi_process_count();
int i, ret=0;
for (i = 0; i < count; i++) {
- if(process_data[i]->return_value!=0){
- ret=process_data[i]->return_value;//return first non 0 value
+ if(process_data[i]->return_value()!=0){
+ ret=process_data[i]->return_value();//return first non 0 value
break;
}
}
return ret;
}
-// This function can be called from extern file, to initialize logs, options, and processes of smpi
-// without the need of smpirun
+// Called either directly from the user code, or from the code called by smpirun
void SMPI_init(){
smpi_init_logs();
smpi_init_options();
smpi_global_init();
smpi_check_options();
- if (TRACE_is_enabled() && TRACE_is_configured())
- TRACE_smpi_alloc();
- if(smpi_privatize_global_variables)
+ TRACE_smpi_alloc();
+ simgrid::surf::surfExitCallbacks.connect(TRACE_smpi_release);
+ if(smpi_privatize_global_variables == SMPI_PRIVATIZE_MMAP)
smpi_initialize_global_memory_segments();
}
void SMPI_finalize(){
smpi_global_destroy();
}
+
+void smpi_mpi_init() {
+ if(smpi_init_sleep > 0)
+ simcall_process_sleep(smpi_init_sleep);
+}
+
+double smpi_mpi_wtime(){
+ double time;
+ if (smpi_process()->initialized() != 0 && smpi_process()->finalized() == 0 && smpi_process()->sampling() == 0) {
+ smpi_bench_end();
+ time = SIMIX_get_clock();
+ // to avoid deadlocks if used as a break condition, such as
+ // while (MPI_Wtime(...) < time_limit) {
+ // ....
+ // }
+ // because the time will not normally advance when only calls to MPI_Wtime
+ // are made -> deadlock (MPI_Wtime never reaches the time limit)
+ if(smpi_wtime_sleep > 0)
+ simcall_process_sleep(smpi_wtime_sleep);
+ smpi_bench_begin();
+ } else {
+ time = SIMIX_get_clock();
+ }
+ return time;
+}
+
