X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/0c06c178342da8b6df3c53a91107bae2078b45fb..b43c07d35a1a9eff2ad7dd94ca72b62ccfe6d915:/src/msg/global.c diff --git a/src/msg/global.c b/src/msg/global.c index 19b502f5d0..eb92d76959 100644 --- a/src/msg/global.c +++ b/src/msg/global.c @@ -1,53 +1,89 @@ -/* $Id$ */ +/* $Id$ */ -/* Copyright (c) 2002,2003,2004 Arnaud Legrand. All rights reserved. */ +/* Copyright (c) 2002-2007 Arnaud Legrand. */ +/* Copyright (c) 2007 Bruno Donassolo. */ +/* 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"private.h" -#include"xbt/sysdep.h" -#include "xbt/error.h" -XBT_LOG_NEW_DEFAULT_SUBCATEGORY(global, msg, - "Logging specific to MSG (global)"); +#include "msg/private.h" +#include "xbt/sysdep.h" +#include "xbt/log.h" +#include "xbt/virtu.h" +#include "xbt/ex.h" /* ex_backtrace_display */ + +XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_kernel, msg, + "Logging specific to MSG (kernel)"); MSG_Global_t msg_global = NULL; -/* static void MarkAsFailed(m_task_t t, TBX_HashTable_t failedProcessList); */ -/* static xbt_fifo_t MSG_buildFailedHostList(long double a, long double b); */ + +/** \defgroup msg_simulation MSG simulation Functions + * \brief This section describes the functions you need to know to + * set up a simulation. You should have a look at \ref MSG_examples + * to have an overview of their usage. + */ +/** @addtogroup msg_simulation + * \htmlonly \endhtmlonly + */ /********************************* MSG **************************************/ /** \ingroup msg_simulation * \brief Initialize some MSG internal data. */ -void MSG_global_init(void) +void MSG_global_init_args(int *argc, char **argv) { + MSG_global_init(argc, argv); +} + +/** \ingroup msg_simulation + * \brief Initialize some MSG internal data. + */ +void MSG_global_init(int *argc, char **argv) +{ + xbt_getpid = &MSG_process_self_PID; if (!msg_global) { - int argc=0; - char **argv=NULL; + SIMIX_global_init(argc, argv); - msg_global = xbt_new0(s_MSG_Global_t,1); + msg_global = xbt_new0(s_MSG_Global_t, 1); - surf_init(&argc, argv); /* Initialize some common structures */ - xbt_context_init(); msg_global->host = xbt_fifo_new(); - msg_global->process_to_run = xbt_fifo_new(); msg_global->process_list = xbt_fifo_new(); msg_global->max_channel = 0; - msg_global->current_process = NULL; - msg_global->registered_functions = xbt_dict_new(); + msg_global->PID = 1; + + SIMIX_function_register_process_create(_MSG_process_create_from_SIMIX); + SIMIX_function_register_process_cleanup(__MSG_process_cleanup); + SIMIX_function_register_process_kill(_MSG_process_kill_from_SIMIX); } + return; } -/** \ingroup msg_simulation - * \brief Defines the verbosity of the simulation. +/** \ingroup msg_easier_life + * \brief Traces MSG events in the Paje format. */ -void MSG_set_verbosity(MSG_outputmode_t mode) + +void MSG_paje_output(const char *filename) { - CRITICAL0("MSG_set_verbosity : Not implemented yet."); } +/** \defgroup m_channel_management Understanding channels + * \brief This section briefly describes the channel notion of MSG + * (#m_channel_t). + */ +/** @addtogroup m_channel_management + * \htmlonly \endhtmlonly + * + * + * For convenience, the simulator provides the notion of channel + * that is close to the tag notion in MPI. A channel is not a + * socket. It doesn't need to be opened neither closed. It rather + * corresponds to the ports opened on the different machines. + */ + + /** \ingroup m_channel_management * \brief Set the number of channel in the simulation. * @@ -60,35 +96,15 @@ void MSG_set_verbosity(MSG_outputmode_t mode) */ MSG_error_t MSG_set_channel_number(int number) { - MSG_global_init(); - - xbt_assert0((msg_global->max_channel == 0), "Channel number already set!"); + xbt_assert0((msg_global) + && (msg_global->max_channel == 0), + "Channel number already set!"); msg_global->max_channel = number; return MSG_OK; } -/** \ingroup m_simulation - * \brief Set the sharing policy used for the links - * - * This function can be called to change the sharing policy used for the links - (see \ref paper_tcp). By default the store and forward mechanism is used - with a parameter equal to 0.1. This function has to be called before creating - any link. - * \param mode the sharing policy used for the links: can be either - MSG_STORE_AND_FORWARD or MSG_TCP. - * \param param a parameter for the sharing policy. It has to be >0. It is - currently used only for the MSG_STORE_AND_FORWARD flavor and represents the - granularity of the communications (i.e. the packet size). - */ -MSG_error_t MSG_set_sharing_policy(MSG_sharing_t mode, long double param) -{ - CRITICAL0("MSG_set_sharing_policy: this function is now deprecated and useless. Store and forward does not exist anymore. Please stop using it."); - - return MSG_OK; -} - /** \ingroup m_channel_management * \brief Return the number of channel in the simulation. * @@ -98,175 +114,101 @@ MSG_error_t MSG_set_sharing_policy(MSG_sharing_t mode, long double param) */ int MSG_get_channel_number(void) { - MSG_global_init(); - - xbt_assert0((msg_global->max_channel != 0), "Channel number not set yet!"); + xbt_assert0((msg_global) + && (msg_global->max_channel != 0), + "Channel number not set yet!"); return msg_global->max_channel; } +void __MSG_display_process_status(void) +{ +} + + +/* FIXME: Yeah, I'll do it in a portable maner one day [Mt] */ +#include + +static void _XBT_CALL inthandler(int ignored) +{ + INFO0("CTRL-C pressed. Displaying status and bailing out"); + __MSG_display_process_status(); + exit(1); +} + /** \ingroup msg_simulation * \brief Launch the MSG simulation */ MSG_error_t MSG_main(void) { - m_process_t process = NULL; - int nbprocess,i; - long double Before=0.0; - long double Now=0.0; - double elapsed_time = 0.0; + smx_cond_t cond = NULL; + smx_action_t smx_action; + xbt_fifo_t actions_done = xbt_fifo_new(); + xbt_fifo_t actions_failed = xbt_fifo_new(); + + /* Prepare to display some more info when dying on Ctrl-C pressing */ + signal(SIGINT, inthandler); /* Clean IO before the run */ fflush(stdout); fflush(stderr); - surf_solve(); /* Takes traces into account. Returns 0.0 */ -/* xbt_fifo_size(msg_global->process_to_run) */ - while (1) { - xbt_context_empty_trash(); - while ((process = xbt_fifo_pop(msg_global->process_to_run))) { -/* fprintf(stderr,"-> %s (%d)\n",process->name, process->simdata->PID); */ - msg_global->current_process = process; - xbt_context_schedule(process->simdata->context); - msg_global->current_process = NULL; - } - Before = MSG_getClock(); - elapsed_time = surf_solve(); - Now = MSG_getClock(); - -/* fprintf(stderr, "====== %Lg =====\n",Now); */ -/* if (elapsed_time==0.0) { */ -/* fprintf(stderr, "No change in time\n"); */ -/* } */ - if (elapsed_time<0.0) { - break; - } + //surf_solve(); /* Takes traces into account. Returns 0.0 */ + /* xbt_fifo_size(msg_global->process_to_run) */ - { - surf_action_t action = NULL; - surf_resource_t resource = NULL; - m_task_t task = NULL; - - xbt_dynar_foreach(resource_list, i, resource) { - while ((action = - xbt_swag_extract(resource->common_public->states. - failed_action_set))) { - task = action->data; - if(task) { - int _cursor; -/* fprintf(stderr,"** %s **\n",task->name); */ - xbt_dynar_foreach(task->simdata->sleeping,_cursor,process) { - xbt_fifo_unshift(msg_global->process_to_run, process); - } - process=NULL; - } - } - while ((action = - xbt_swag_extract(resource->common_public->states. - done_action_set))) { - task = action->data; - if(task) { - int _cursor; -/* fprintf(stderr,"** %s **\n",task->name); */ - xbt_dynar_foreach(task->simdata->sleeping,_cursor,process) { - xbt_fifo_unshift(msg_global->process_to_run, process); - } - process=NULL; - } - } + while (SIMIX_solve(actions_done, actions_failed) != -1.0) { + + while ((smx_action = xbt_fifo_pop(actions_failed))) { + + + DEBUG1("** %s failed **", smx_action->name); + while ((cond = xbt_fifo_pop(smx_action->cond_list))) { + SIMIX_cond_broadcast(cond); } + /* action finished, destroy it */ + // SIMIX_action_destroy(smx_action); } - } - if ((nbprocess=xbt_fifo_size(msg_global->process_list)) == 0) { - fprintf(stderr, - "MSG: Congratulations ! Simulation terminated : all process are over\n"); - return MSG_OK; - } else { - fprintf(stderr,"MSG: Oops ! Deadlock or code not perfectly clean.\n"); - fprintf(stderr,"MSG: %d processes are still running, waiting for something.\n", - nbprocess); - /* List the process and their state */ - fprintf(stderr,"MSG: () on : .\n"); - while ((process=xbt_fifo_pop(msg_global->process_list))) { - simdata_process_t p_simdata = (simdata_process_t) process->simdata; - simdata_host_t h_simdata=(simdata_host_t)p_simdata->host->simdata; - - fprintf(stderr,"MSG: %s(%d) on %s: ", - process->name,p_simdata->PID, - p_simdata->host->name); - for (i=0; imax_channel; i++) { - if (h_simdata->sleeping[i] == process) { - fprintf(stderr,"Listening on channel %d.\n",i); - break; - } + while ((smx_action = xbt_fifo_pop(actions_done))) { + + DEBUG1("** %s done **", smx_action->name); + while ((cond = xbt_fifo_pop(smx_action->cond_list))) { + SIMIX_cond_broadcast(cond); } - if (i==msg_global->max_channel) { - if(p_simdata->waiting_task) { - if(p_simdata->waiting_task->simdata->compute) - fprintf(stderr,"Waiting for %s to finish.\n",p_simdata->waiting_task->name); - else if (p_simdata->waiting_task->simdata->comm) - fprintf(stderr,"Waiting for %s to be finished transfered.\n", - p_simdata->waiting_task->name); - else - fprintf(stderr,"UNKNOWN STATUS. Please report this bug.\n"); - } - else { /* Must be trying to put a task somewhere */ - if(p_simdata->put_host) { - fprintf(stderr,"Trying to send a task on Host %s, channel %d.\n", - p_simdata->put_host->name, p_simdata->put_channel); - } else { - fprintf(stderr,"UNKNOWN STATUS. Please report this bug.\n"); - } - } - } + /* action finished, destroy it */ + //SIMIX_action_destroy(smx_action); } - return MSG_WARNING; } + xbt_fifo_free(actions_failed); + xbt_fifo_free(actions_done); + return MSG_OK; } -/* static void MarkAsFailed(m_task_t t, TBX_HashTable_t failedProcessList) */ -/* { */ -/* simdata_task_t simdata = NULL; */ -/* xbt_fifo_item_t i = NULL; */ -/* m_process_t p = NULL; */ - -/* xbt_assert0((t!=NULL),"Invalid task"); */ -/* simdata = t->simdata; */ - -/* #define KILL(task) if(task) SG_failTask(task) */ -/* KILL(simdata->compute); */ -/* KILL(simdata->TCP_comm); */ -/* KILL(simdata->s[0]); */ -/* KILL(simdata->s[1]); */ -/* KILL(simdata->s[2]); */ -/* KILL(simdata->s[3]); */ -/* KILL(simdata->sleep); */ -/* #undef KILL */ -/* /\* if(simdata->comm) SG_failEndToEndTransfer(simdata->comm); *\/ */ - -/* xbt_fifo_foreach(simdata->sleeping,i,p,m_process_t) { */ -/* if(!TBX_HashTable_isInList(failedProcessList,p,TBX_basicHash)) */ -/* TBX_HashTable_insert(failedProcessList,p,TBX_basicHash); */ -/* } */ - -/* } */ - -/* static xbt_fifo_t MSG_buildFailedHostList(long double begin, long double end) */ -/* { */ -/* xbt_fifo_t failedHostList = xbt_fifo_new(); */ -/* m_host_t host = NULL; */ -/* xbt_fifo_item_t i; */ - -/* xbt_fifo_foreach(msg_global->host,i,host,m_host_t) { */ -/* SG_Resource r= ((simdata_host_t) (host->simdata))->host; */ - -/* if(SG_evaluateFailureTrace(r->failure_trace,begin,end)!=-1.0) */ -/* xbt_fifo_insert(failedHostList,host); */ -/* } */ - -/* return failedHostList; */ -/* } */ +/** \ingroup msg_simulation + * \brief Kill all running process + + * \param reset_PIDs should we reset the PID numbers. A negative + * number means no reset and a positive number will be used to set the PID + * of the next newly created process. + */ +int MSG_process_killall(int reset_PIDs) +{ + m_process_t p = NULL; + m_process_t self = MSG_process_self(); + + while ((p = xbt_fifo_pop(msg_global->process_list))) { + if (p != self) + MSG_process_kill(p); + } + + if (reset_PIDs > 0) { + msg_global->PID = reset_PIDs; + msg_global->session++; + } + + return msg_global->PID; + +} /** \ingroup msg_simulation * \brief Clean the MSG simulation @@ -275,19 +217,21 @@ MSG_error_t MSG_clean(void) { xbt_fifo_item_t i = NULL; m_host_t h = NULL; + m_process_t p = NULL; - xbt_context_exit(); - xbt_fifo_foreach(msg_global->host,i,h,m_host_t) { + while ((p = xbt_fifo_pop(msg_global->process_list))) { + MSG_process_kill(p); + } + + xbt_fifo_foreach(msg_global->host, i, h, m_host_t) { __MSG_host_destroy(h); } xbt_fifo_free(msg_global->host); - xbt_fifo_free(msg_global->process_to_run); xbt_fifo_free(msg_global->process_list); - xbt_dict_free(&(msg_global->registered_functions)); - xbt_free(msg_global); - surf_finalize(); + free(msg_global); + SIMIX_clean(); return MSG_OK; } @@ -296,7 +240,7 @@ MSG_error_t MSG_clean(void) /** \ingroup msg_easier_life * \brief A clock (in second). */ -long double MSG_getClock(void) { - return surf_get_clock(); +double MSG_get_clock(void) +{ + return SIMIX_get_clock(); } -