X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/ebd53cac243186b83457179668123ae1ddbd47a2..d73cc63ed2740fe67bf9c0ada4e70ca826600963:/src/smpi/smpi_global.c

diff --git a/src/smpi/smpi_global.c b/src/smpi/smpi_global.c
index 4dac16053e..1b98966471 100644
--- a/src/smpi/smpi_global.c
+++ b/src/smpi/smpi_global.c
@@ -1,377 +1,297 @@
-#include <stdio.h>
+/* Copyright (c) 2007, 2008, 2009, 2010. 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 <stdint.h>
+#include <stdlib.h>
 
 #include "private.h"
+#include "smpi_mpi_dt_private.h"
+#include "mc/mc.h"
+#include "surf/surf.h"
 
 XBT_LOG_NEW_CATEGORY(smpi, "All SMPI categories");
 
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_kernel, smpi,
                                 "Logging specific to SMPI (kernel)");
 
-smpi_global_t smpi_global = NULL;
+typedef struct s_smpi_process_data {
+  int index;
+  int* argc;
+  char*** argv;
+  smx_rdv_t mailbox;
+  xbt_os_timer_t timer;
+  double simulated;
+  MPI_Comm comm_self;
+} s_smpi_process_data_t;
 
-void *smpi_request_new(void);
+static smpi_process_data_t *process_data = NULL;
+static int process_count = 0;
 
-void *smpi_request_new()
-{
-  smpi_mpi_request_t request = xbt_new(s_smpi_mpi_request_t, 1);
+MPI_Comm MPI_COMM_WORLD = MPI_COMM_NULL;
 
-  request->buf = NULL;
-  request->completed = 0;
-  request->mutex = SIMIX_mutex_init();
-  request->cond = SIMIX_cond_init();
-  request->data = NULL;
-  request->forward = 0;
+#define MAILBOX_NAME_MAXLEN (5 + sizeof(int) * 2 + 1)
 
-  return request;
+static char* get_mailbox_name(char* str, int index) {
+  snprintf(str, MAILBOX_NAME_MAXLEN, "SMPI-%0*x", (int)(sizeof(int) * 2), index);
+  return str;
 }
 
-void smpi_request_free(void *pointer);
-
-void smpi_request_free(void *pointer)
+void smpi_process_init(int *argc, char ***argv)
 {
+  int index;
+  smpi_process_data_t data;
+  smx_process_t proc;
+
+  if(argc && argv) {
+    proc = SIMIX_process_self();
+    index = atoi((*argv)[1]);
+    data = smpi_process_remote_data(index);
+    SIMIX_req_process_set_data(proc, data);
+    if (*argc > 2) {
+      free((*argv)[1]);
+      memmove(&(*argv)[1], &(*argv)[2], sizeof(char *) * (*argc - 2));
+      (*argv)[(*argc) - 1] = NULL;
+    }
+    (*argc)--;
+    data->argc = argc;
+    data->argv = argv;
+    XBT_DEBUG("<%d> New process in the game: %p", index, proc);
+  }
+}
 
-  smpi_mpi_request_t request = pointer;
-
-  SIMIX_cond_destroy(request->cond);
-  SIMIX_mutex_destroy(request->mutex);
-  xbt_free(request);
+void smpi_process_destroy(void)
+{
+  int index = smpi_process_index();
 
-  return;
+  XBT_DEBUG("<%d> Process left the game", index);
 }
 
-void smpi_request_reset(void *pointer);
+int smpi_process_argc(void) {
+  smpi_process_data_t data = smpi_process_data();
 
-void smpi_request_reset(void *pointer)
-{
-  smpi_mpi_request_t request = pointer;
+  return data->argc ? *(data->argc) - 1 : 0;
+}
 
-  request->buf = NULL;
-  request->completed = 0;
-  request->data = NULL;
-  request->forward = 0;
+int smpi_process_getarg(integer* index, char* dst, ftnlen len) {
+  smpi_process_data_t data = smpi_process_data();
+  char* arg;
+  ftnlen i;
 
-  return;
+  if(!data->argc || !data->argv
+     || *index < 1 || *index >= *(data->argc)) {
+    return -1;
+  }
+  arg = (*data->argv)[*index];
+  for(i = 0; i < len && arg[i] != '\0'; i++) {
+    dst[i] = arg[i];
+  }
+  for(; i < len; i++) {
+    dst[i] = ' ';
+  }
+  return 0;
 }
 
+int smpi_global_size(void) {
+   char* value = getenv("SMPI_GLOBAL_SIZE");
 
-void *smpi_message_new(void);
-
-void *smpi_message_new()
-{
-  smpi_received_message_t message = xbt_new(s_smpi_received_message_t, 1);
-  message->buf = NULL;
-  return message;
+   if(!value) {
+      abort();
+   }
+   return atoi(value);
 }
 
-void smpi_message_free(void *pointer);
-
-void smpi_message_free(void *pointer)
+smpi_process_data_t smpi_process_data(void)
 {
-  xbt_free(pointer);
-  return;
+  return SIMIX_process_self_get_data();
 }
 
-void smpi_message_reset(void *pointer);
-
-void smpi_message_reset(void *pointer)
+smpi_process_data_t smpi_process_remote_data(int index)
 {
-  smpi_received_message_t message = pointer;
-  message->buf = NULL;
-  return;
+  return process_data[index];
 }
 
-int smpi_create_request(void *buf, int count, smpi_mpi_datatype_t datatype,
-                        int src, int dst, int tag,
-                        smpi_mpi_communicator_t comm,
-                        smpi_mpi_request_t * requestptr)
+int smpi_process_count(void)
 {
-  int retval = MPI_SUCCESS;
-
-  smpi_mpi_request_t request = NULL;
-
-  // parameter checking prob belongs in smpi_mpi, but this is less repeat code
-  if (NULL == buf) {
-    retval = MPI_ERR_INTERN;
-  } else if (0 > count) {
-    retval = MPI_ERR_COUNT;
-  } else if (NULL == datatype) {
-    retval = MPI_ERR_TYPE;
-  } else if (MPI_ANY_SOURCE != src && (0 > src || comm->size <= src)) {
-    retval = MPI_ERR_RANK;
-  } else if (0 > dst || comm->size <= dst) {
-    retval = MPI_ERR_RANK;
-  } else if (MPI_ANY_TAG != tag && 0 > tag) {
-    retval = MPI_ERR_TAG;
-  } else if (NULL == comm) {
-    retval = MPI_ERR_COMM;
-  } else if (NULL == requestptr) {
-    retval = MPI_ERR_ARG;
-  } else {
-    request = xbt_mallocator_get(smpi_global->request_mallocator);
-    request->comm = comm;
-    request->src = src;
-    request->dst = dst;
-    request->tag = tag;
-    request->buf = buf;
-    request->datatype = datatype;
-    request->count = count;
-
-    *requestptr = request;
-  }
-  return retval;
+  return process_count;
 }
-/* FIXME: understand what they do and put the prototypes in a header file (live in smpi_base.c) */
-void smpi_mpi_land_func(void *a, void *b, int *length,
-                        MPI_Datatype * datatype);
-void smpi_mpi_sum_func(void *a, void *b, int *length,
-                       MPI_Datatype * datatype);
 
-void smpi_global_init()
+int smpi_process_index(void)
 {
-  int i;
-
-  int size = SIMIX_host_get_number();
-
-  /* Connect our log channels: that must be done manually under windows */
-#ifdef XBT_LOG_CONNECT
-  XBT_LOG_CONNECT(smpi_base, smpi);
-  XBT_LOG_CONNECT(smpi_bench, smpi);
-  XBT_LOG_CONNECT(smpi_kernel, smpi);
-  XBT_LOG_CONNECT(smpi_mpi, smpi);
-  XBT_LOG_CONNECT(smpi_receiver, smpi);
-  XBT_LOG_CONNECT(smpi_sender, smpi);
-  XBT_LOG_CONNECT(smpi_util, smpi);
-#endif
+  smpi_process_data_t data = smpi_process_data();
 
-  smpi_global = xbt_new(s_smpi_global_t, 1);
-  // config variable
-  smpi_global->reference_speed = SMPI_DEFAULT_SPEED;
-
-  smpi_global->root_ready = 0;
-  smpi_global->ready_process_count = 0;
-
-  // start/stop
-  smpi_global->start_stop_mutex = SIMIX_mutex_init();
-  smpi_global->start_stop_cond = SIMIX_cond_init();
-
-  // host info blank until sim starts
-  // FIXME: is this okay?
-  smpi_global->hosts = NULL;
-  smpi_global->host_count = 0;
-
-  // running hosts
-  smpi_global->running_hosts_count_mutex = SIMIX_mutex_init();
-  smpi_global->running_hosts_count = 0;
-
-  // mallocators
-  smpi_global->request_mallocator =
-    xbt_mallocator_new(SMPI_REQUEST_MALLOCATOR_SIZE, smpi_request_new,
-                       smpi_request_free, smpi_request_reset);
-  smpi_global->message_mallocator =
-    xbt_mallocator_new(SMPI_MESSAGE_MALLOCATOR_SIZE, smpi_message_new,
-                       smpi_message_free, smpi_message_reset);
-
-  // queues
-  smpi_global->pending_send_request_queues = xbt_new(xbt_fifo_t, size);
-  smpi_global->pending_send_request_queues_mutexes =
-    xbt_new(smx_mutex_t, size);
-  smpi_global->pending_recv_request_queues = xbt_new(xbt_fifo_t, size);
-  smpi_global->pending_recv_request_queues_mutexes =
-    xbt_new(smx_mutex_t, size);
-  smpi_global->received_message_queues = xbt_new(xbt_fifo_t, size);
-  smpi_global->received_message_queues_mutexes = xbt_new(smx_mutex_t, size);
-
-  // sender/receiver processes
-  smpi_global->sender_processes = xbt_new(smx_process_t, size);
-  smpi_global->receiver_processes = xbt_new(smx_process_t, size);
-
-  // timers
-  smpi_global->timer = xbt_os_timer_new();
-  smpi_global->timer_mutex = SIMIX_mutex_init();
-  smpi_global->timer_cond = SIMIX_cond_init();
-
-  smpi_global->do_once_duration_nodes = NULL;
-  smpi_global->do_once_duration = NULL;
-  smpi_global->do_once_mutex = SIMIX_mutex_init();
-
-  for (i = 0; i < size; i++) {
-    smpi_global->pending_send_request_queues[i] = xbt_fifo_new();
-    smpi_global->pending_send_request_queues_mutexes[i] = SIMIX_mutex_init();
-    smpi_global->pending_recv_request_queues[i] = xbt_fifo_new();
-    smpi_global->pending_recv_request_queues_mutexes[i] = SIMIX_mutex_init();
-    smpi_global->received_message_queues[i] = xbt_fifo_new();
-    smpi_global->received_message_queues_mutexes[i] = SIMIX_mutex_init();
-  }
+  return data->index;
+}
 
-  smpi_global->hosts = SIMIX_host_get_table();
-  smpi_global->host_count = SIMIX_host_get_number();
-
-  smpi_mpi_global = xbt_new(s_smpi_mpi_global_t, 1);
-
-  // global communicator
-  smpi_mpi_global->mpi_comm_world = xbt_new(s_smpi_mpi_communicator_t, 1);
-  smpi_mpi_global->mpi_comm_world->size = smpi_global->host_count;
-  smpi_mpi_global->mpi_comm_world->barrier_count = 0;
-  smpi_mpi_global->mpi_comm_world->barrier_mutex = SIMIX_mutex_init();
-  smpi_mpi_global->mpi_comm_world->barrier_cond = SIMIX_cond_init();
-  smpi_mpi_global->mpi_comm_world->rank_to_index_map =
-    xbt_new(int, smpi_global->host_count);
-  smpi_mpi_global->mpi_comm_world->index_to_rank_map =
-    xbt_new(int, smpi_global->host_count);
-  for (i = 0; i < smpi_global->host_count; i++) {
-    smpi_mpi_global->mpi_comm_world->rank_to_index_map[i] = i;
-    smpi_mpi_global->mpi_comm_world->index_to_rank_map[i] = i;
-  }
+smx_rdv_t smpi_process_mailbox(void) {
+  smpi_process_data_t data = smpi_process_data();
 
-  // mpi datatypes
-  smpi_mpi_global->mpi_byte = xbt_new(s_smpi_mpi_datatype_t, 1);
-  smpi_mpi_global->mpi_byte->size = (size_t) 1;
-  smpi_mpi_global->mpi_int = xbt_new(s_smpi_mpi_datatype_t, 1);
-  smpi_mpi_global->mpi_int->size = sizeof(int);
-  smpi_mpi_global->mpi_double = xbt_new(s_smpi_mpi_datatype_t, 1);
-  smpi_mpi_global->mpi_double->size = sizeof(double);
+  return data->mailbox;
+}
 
-  // mpi operations
-  smpi_mpi_global->mpi_land = xbt_new(s_smpi_mpi_op_t, 1);
-  smpi_mpi_global->mpi_land->func = smpi_mpi_land_func;
-  smpi_mpi_global->mpi_sum = xbt_new(s_smpi_mpi_op_t, 1);
-  smpi_mpi_global->mpi_sum->func = smpi_mpi_sum_func;
+smx_rdv_t smpi_process_remote_mailbox(int index) {
+  smpi_process_data_t data = smpi_process_remote_data(index);
 
+  return data->mailbox;
 }
 
-void smpi_global_destroy()
+xbt_os_timer_t smpi_process_timer(void)
 {
-  int i;
-
-  int size = SIMIX_host_get_number();
-
-  smpi_do_once_duration_node_t curr, next;
-
-  // start/stop
-  SIMIX_mutex_destroy(smpi_global->start_stop_mutex);
-  SIMIX_cond_destroy(smpi_global->start_stop_cond);
-
-  // processes
-  xbt_free(smpi_global->sender_processes);
-  xbt_free(smpi_global->receiver_processes);
+  smpi_process_data_t data = smpi_process_data();
 
-  // running hosts
-  SIMIX_mutex_destroy(smpi_global->running_hosts_count_mutex);
-
-  // mallocators
-  xbt_mallocator_free(smpi_global->request_mallocator);
-  xbt_mallocator_free(smpi_global->message_mallocator);
-
-  xbt_os_timer_free(smpi_global->timer);
-  SIMIX_mutex_destroy(smpi_global->timer_mutex);
-  SIMIX_cond_destroy(smpi_global->timer_cond);
+  return data->timer;
+}
 
-  for (curr = smpi_global->do_once_duration_nodes; NULL != curr; curr = next) {
-    next = curr->next;
-    xbt_free(curr->file);
-    xbt_free(curr);
-  }
+void smpi_process_simulated_start(void)
+{
+  smpi_process_data_t data = smpi_process_data();
 
-  SIMIX_mutex_destroy(smpi_global->do_once_mutex);
+  data->simulated = SIMIX_get_clock();
+}
 
-  for (i = 0; i < size; i++) {
-    xbt_fifo_free(smpi_global->pending_send_request_queues[i]);
-    SIMIX_mutex_destroy(smpi_global->pending_send_request_queues_mutexes[i]);
-    xbt_fifo_free(smpi_global->pending_recv_request_queues[i]);
-    SIMIX_mutex_destroy(smpi_global->pending_recv_request_queues_mutexes[i]);
-    xbt_fifo_free(smpi_global->received_message_queues[i]);
-    SIMIX_mutex_destroy(smpi_global->received_message_queues_mutexes[i]);
-  }
+double smpi_process_simulated_elapsed(void)
+{
+  smpi_process_data_t data = smpi_process_data();
 
-  xbt_free(smpi_global->pending_send_request_queues);
-  xbt_free(smpi_global->pending_send_request_queues_mutexes);
-  xbt_free(smpi_global->pending_recv_request_queues);
-  xbt_free(smpi_global->pending_recv_request_queues_mutexes);
-  xbt_free(smpi_global->received_message_queues);
-  xbt_free(smpi_global->received_message_queues_mutexes);
+  return SIMIX_get_clock() - data->simulated;
+}
 
-  xbt_free(smpi_global);
+MPI_Comm smpi_process_comm_self(void)
+{
+  smpi_process_data_t data = smpi_process_data();
 
-  smpi_global = NULL;
+  return data->comm_self;
 }
 
-int smpi_host_index()
+void print_request(const char *message, MPI_Request request)
 {
-  smx_host_t host = SIMIX_host_self();
-  smpi_host_data_t hdata = (smpi_host_data_t) SIMIX_host_get_data(host);
-  return hdata->index;
+  XBT_DEBUG("%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);
 }
 
-smx_mutex_t smpi_host_mutex()
+void smpi_global_init(void)
 {
-  smx_host_t host = SIMIX_host_self();
-  smpi_host_data_t hdata = (smpi_host_data_t) SIMIX_host_get_data(host);
-  return hdata->mutex;
+  int i;
+  MPI_Group group;
+  char name[MAILBOX_NAME_MAXLEN];
+
+  SIMIX_comm_set_copy_data_callback
+      (&SIMIX_comm_copy_buffer_callback);
+  process_count = SIMIX_process_count();
+  process_data = xbt_new(smpi_process_data_t, process_count);
+  for (i = 0; i < process_count; i++) {
+    process_data[i] = xbt_new(s_smpi_process_data_t, 1);
+    process_data[i]->index = i;
+    process_data[i]->argc = NULL;
+    process_data[i]->argv = NULL;
+    process_data[i]->mailbox = SIMIX_req_rdv_create(get_mailbox_name(name, i));
+    process_data[i]->timer = xbt_os_timer_new();
+    group = smpi_group_new(1);
+    process_data[i]->comm_self = smpi_comm_new(group);
+    smpi_group_set_mapping(group, i, 0);
+  }
+  group = smpi_group_new(process_count);
+  MPI_COMM_WORLD = smpi_comm_new(group);
+  for (i = 0; i < process_count; i++) {
+    smpi_group_set_mapping(group, i, i);
+  }
 }
 
-smx_cond_t smpi_host_cond()
+void smpi_global_destroy(void)
 {
-  smx_host_t host = SIMIX_host_self();
-  smpi_host_data_t hdata = (smpi_host_data_t) SIMIX_host_get_data(host);
-  return hdata->cond;
+  int count = smpi_process_count();
+  int i;
+
+  smpi_bench_destroy();
+  smpi_comm_destroy(MPI_COMM_WORLD);
+  MPI_COMM_WORLD = MPI_COMM_NULL;
+  for (i = 0; i < count; i++) {
+    smpi_comm_destroy(process_data[i]->comm_self);
+    xbt_os_timer_free(process_data[i]->timer);
+    SIMIX_req_rdv_destroy(process_data[i]->mailbox);
+    xbt_free(process_data[i]);
+  }
+  xbt_free(process_data);
+  process_data = NULL;
 }
 
-int smpi_run_simulation(int *argc, char **argv)
-{
-  smx_cond_t cond = NULL;
-  smx_action_t action = NULL;
+/* Fortran specific stuff */
+/* With smpicc, the following weak symbols are used */
+/* With smpiff, the following weak symbols are replaced by those in libf2c */
+int __attribute__((weak)) xargc;
+char** __attribute__((weak)) xargv;
 
-  xbt_fifo_t actions_failed = xbt_fifo_new();
-  xbt_fifo_t actions_done = xbt_fifo_new();
+int __attribute__((weak)) main(int argc, char** argv) {
+   xargc = argc;
+   xargv = argv;
+   return MAIN__();
+}
 
+int MAIN__(void)
+{
   srand(SMPI_RAND_SEED);
 
-  SIMIX_global_init(argc, argv);
+  double default_reference_speed = 20000.0;
+  xbt_cfg_register(&_surf_cfg_set, "smpi/running_power",
+                   "Power of the host running the simulation (in flop/s). Used to bench the operations.",
+                   xbt_cfgelm_double, &default_reference_speed, 1, 1, NULL,
+                   NULL);
+
+  int default_display_timing = 0;
+  xbt_cfg_register(&_surf_cfg_set, "smpi/display_timing",
+                   "Boolean indicating whether we should display the timing after simulation.",
+                   xbt_cfgelm_int, &default_display_timing, 1, 1, NULL,
+                   NULL);
+
+  double default_threshold = 1e-6;
+  xbt_cfg_register(&_surf_cfg_set, "smpi/cpu_threshold",
+                   "Minimal computation time (in seconds) not discarded.",
+                   xbt_cfgelm_double, &default_threshold, 1, 1, NULL,
+                   NULL);
+
+  if(getenv("SMPI_PRETEND_CC") != NULL) {
+    return 0;
+  }
+
+#ifdef HAVE_TRACING
+  TRACE_global_init(&xargc, xargv);
+#endif
+
+  SIMIX_global_init(&xargc, xargv);
+
+#ifdef HAVE_TRACING
+  TRACE_smpi_start();
+#endif
 
   // parse the platform file: get the host list
-  SIMIX_create_environment(argv[1]);
+  SIMIX_create_environment(xargv[1]);
 
   SIMIX_function_register("smpi_simulated_main", smpi_simulated_main);
-  SIMIX_function_register("smpi_sender", smpi_sender);
-  SIMIX_function_register("smpi_receiver", smpi_receiver);
-  SIMIX_launch_application(argv[2]);
+  SIMIX_launch_application(xargv[2]);
 
-  // must initialize globals between creating environment and launching app....
   smpi_global_init();
 
-  /* Prepare to display some more info when dying on Ctrl-C pressing */
-  // FIXME: doesn't work
-  //signal(SIGINT, inthandler);
-
   /* Clean IO before the run */
   fflush(stdout);
   fflush(stderr);
-  SIMIX_init();
-
-  while (SIMIX_solve(actions_done, actions_failed) != -1.0) {
-    while ((action = xbt_fifo_pop(actions_failed))) {
-      DEBUG1("** %s failed **", action->name);
-      while ((cond = xbt_fifo_pop(action->cond_list))) {
-        SIMIX_cond_broadcast(cond);
-      }
-    }
-    while ((action = xbt_fifo_pop(actions_done))) {
-      DEBUG1("** %s done **", action->name);
-      while ((cond = xbt_fifo_pop(action->cond_list))) {
-        SIMIX_cond_broadcast(cond);
-      }
-    }
-  }
 
-  // FIXME: cleanup incomplete
-  xbt_fifo_free(actions_failed);
-  xbt_fifo_free(actions_done);
+  if (MC_IS_ENABLED)
+    MC_modelcheck();
+  else
+    SIMIX_run();
 
-  INFO1("simulation time %g", SIMIX_get_clock());
+  if (xbt_cfg_get_int(_surf_cfg_set, "smpi/display_timing"))
+    XBT_INFO("simulation time %g", SIMIX_get_clock());
 
   smpi_global_destroy();
 
-  SIMIX_clean();
+#ifdef HAVE_TRACING
+  TRACE_smpi_release();
+#endif
 
+  SIMIX_clean();
   return 0;
 }