-/* context_raw - fast context switching inspired from System V ucontexts */
-
-/* Copyright (c) 2009-2015. 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 <math.h>
-#include "smx_private.h"
-#include "xbt/parmap.h"
-#include "xbt/dynar.h"
-#include "mc/mc.h"
-
-typedef char * raw_stack_t;
-typedef void (*rawctx_entry_point_t)(void *);
-
-typedef struct s_smx_ctx_raw {
- s_smx_ctx_base_t super; /* Fields of super implementation */
- char *malloced_stack; /* malloced area containing the stack */
- raw_stack_t stack_top; /* pointer to stack top (within previous area) */
-#ifdef TIME_BENCH_PER_SR
- unsigned int thread; /* Just for measuring purposes */
-#endif
-} s_smx_ctx_raw_t, *smx_ctx_raw_t;
-
-#ifdef CONTEXT_THREADS
-static xbt_parmap_t raw_parmap;
-static smx_ctx_raw_t* raw_workers_context; /* space to save the worker context in each thread */
-static unsigned long raw_threads_working; /* number of threads that have started their work */
-static xbt_os_thread_key_t raw_worker_id_key; /* thread-specific storage for the thread id */
-#endif
-#ifdef ADAPTIVE_THRESHOLD
-#define SCHED_ROUND_LIMIT 5
-xbt_os_timer_t round_time;
-double par_time,seq_time;
-double par_ratio,seq_ratio;
-int reached_seq_limit, reached_par_limit;
-static unsigned int par_proc_that_ran = 0,seq_proc_that_ran = 0; /* Counters of processes that have run in SCHED_ROUND_LIMIT scheduling rounds */
-static unsigned int seq_sched_round=0, par_sched_round=0; /* Amount of SR that ran serial/parallel*/
-/*Varables used to calculate running variance and mean*/
-double prev_avg_par_proc=0,prev_avg_seq_proc=0;
-double delta=0;
-double s_par_proc=0,s_seq_proc=0; /*Standard deviation of number of processes computed in par/seq during the current simulation*/
-double avg_par_proc=0,sd_par_proc=0;
-double avg_seq_proc=0,sd_seq_proc=0;
-long long par_window=(long long)HUGE_VAL,seq_window=0;
-#endif
-
-static unsigned long raw_process_index = 0; /* index of the next process to run in the
- * list of runnable processes */
-static smx_ctx_raw_t raw_maestro_context;
-extern "C" raw_stack_t raw_makecontext(char* malloced_stack, int stack_size,
- rawctx_entry_point_t entry_point, void* arg);
-extern "C" void raw_swapcontext(raw_stack_t* old, raw_stack_t new_context);
-
-#if PROCESSOR_x86_64
-__asm__ (
-#if defined(APPLE)
- ".text\n"
- ".globl _raw_makecontext\n"
- "_raw_makecontext:\n"
-#elif defined(_WIN32)
- ".text\n"
- ".globl raw_makecontext\n"
- "raw_makecontext:\n"
-#else
- ".text\n"
- ".globl raw_makecontext\n"
- ".type raw_makecontext,@function\n"
- "raw_makecontext:\n"/* Calling convention sets the arguments in rdi, rsi, rdx and rcx, respectively */
-#endif
- " mov %rdi,%rax\n" /* stack */
- " add %rsi,%rax\n" /* size */
- " andq $-16, %rax\n" /* align stack */
- " movq $0, -8(%rax)\n" /* @return for func */
- " mov %rdx,-16(%rax)\n" /* func */
- " mov %rcx,-24(%rax)\n" /* arg/rdi */
- " movq $0, -32(%rax)\n" /* rsi */
- " movq $0, -40(%rax)\n" /* rdx */
- " movq $0, -48(%rax)\n" /* rcx */
- " movq $0, -56(%rax)\n" /* r8 */
- " movq $0, -64(%rax)\n" /* r9 */
- " movq $0, -72(%rax)\n" /* rbp */
- " movq $0, -80(%rax)\n" /* rbx */
- " movq $0, -88(%rax)\n" /* r12 */
- " movq $0, -96(%rax)\n" /* r13 */
- " movq $0, -104(%rax)\n" /* r14 */
- " movq $0, -112(%rax)\n" /* r15 */
- " sub $112,%rax\n"
- " ret\n"
-);
-
-__asm__ (
-#if defined(APPLE)
- ".text\n"
- ".globl _raw_swapcontext\n"
- "_raw_swapcontext:\n"
-#elif defined(_WIN32)
- ".text\n"
- ".globl raw_swapcontext\n"
- "raw_swapcontext:\n"
-#else
- ".text\n"
- ".globl raw_swapcontext\n"
- ".type raw_swapcontext,@function\n"
- "raw_swapcontext:\n" /* Calling convention sets the arguments in rdi and rsi, respectively */
-#endif
- " push %rdi\n"
- " push %rsi\n"
- " push %rdx\n"
- " push %rcx\n"
- " push %r8\n"
- " push %r9\n"
- " push %rbp\n"
- " push %rbx\n"
- " push %r12\n"
- " push %r13\n"
- " push %r14\n"
- " push %r15\n"
- " mov %rsp,(%rdi)\n" /* old */
- " mov %rsi,%rsp\n" /* new */
- " pop %r15\n"
- " pop %r14\n"
- " pop %r13\n"
- " pop %r12\n"
- " pop %rbx\n"
- " pop %rbp\n"
- " pop %r9\n"
- " pop %r8\n"
- " pop %rcx\n"
- " pop %rdx\n"
- " pop %rsi\n"
- " pop %rdi\n"
- " ret\n"
-);
-#elif PROCESSOR_i686
-__asm__ (
-#if defined(APPLE) || defined(_WIN32)
- ".text\n"
- ".globl _raw_makecontext\n"
- "_raw_makecontext:\n"
-#else
- ".text\n"
- ".globl raw_makecontext\n"
- ".type raw_makecontext,@function\n"
- "raw_makecontext:\n"
-#endif
- " movl 4(%esp),%eax\n" /* stack */
- " addl 8(%esp),%eax\n" /* size */
- " andl $-16, %eax\n" /* align stack */
- " movl 12(%esp),%ecx\n" /* func */
- " movl 16(%esp),%edx\n" /* arg */
- " movl %edx, -4(%eax)\n"
- " movl $0, -8(%eax)\n" /* @return for func */
- " movl %ecx,-12(%eax)\n"
- " movl $0, -16(%eax)\n" /* ebp */
- " movl $0, -20(%eax)\n" /* ebx */
- " movl $0, -24(%eax)\n" /* esi */
- " movl $0, -28(%eax)\n" /* edi */
- " subl $28,%eax\n"
- " retl\n"
-);
-
-__asm__ (
-#if defined(APPLE) || defined(_WIN32)
- ".text\n"
- ".globl _raw_swapcontext\n"
- "_raw_swapcontext:\n"
-#else
- ".text\n"
- ".globl raw_swapcontext\n"
- ".type raw_swapcontext,@function\n"
- "raw_swapcontext:\n"
-#endif
- " movl 4(%esp),%eax\n" /* old */
- " movl 8(%esp),%edx\n" /* new */
- " pushl %ebp\n"
- " pushl %ebx\n"
- " pushl %esi\n"
- " pushl %edi\n"
- " movl %esp,(%eax)\n"
- " movl %edx,%esp\n"
- " popl %edi\n"
- " popl %esi\n"
- " popl %ebx\n"
- " popl %ebp\n"
- " retl\n"
-);
-#else
-
-
-/* If you implement raw contexts for other processors, don't forget to
- update the definition of HAVE_RAWCTX in tools/cmake/CompleteInFiles.cmake */
-
-raw_stack_t raw_makecontext(char* malloced_stack, int stack_size,
- rawctx_entry_point_t entry_point, void* arg) {
- THROW_UNIMPLEMENTED;
-}
-
-void raw_swapcontext(raw_stack_t* old, raw_stack_t new_context) {
- THROW_UNIMPLEMENTED;
-}
-
-#endif
-
-XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(simix_context);
-
-#ifdef TIME_BENCH_PER_SR
-#include "xbt/xbt_os_time.h"
-#define NUM_THREADS 4
-static xbt_os_timer_t timer;
-static double time_thread_sr[NUM_THREADS];
-static double time_thread_ssr[NUM_THREADS];
-static double time_wasted_sr = 0;
-static double time_wasted_ssr = 0;
-static unsigned int sr_count = 0;
-static unsigned int ssr_count = 0;
-static char new_sr = 0;
-#endif
-
-#ifdef TIME_BENCH_ENTIRE_SRS
-static unsigned int sr_count = 0;
-static xbt_os_timer_t timer;
-#endif
-
-static void smx_ctx_raw_wrapper(smx_ctx_raw_t context);
-static int smx_ctx_raw_factory_finalize(smx_context_factory_t *factory);
-static smx_context_t smx_ctx_raw_create_context(xbt_main_func_t code, int argc,
- char **argv, void_pfn_smxprocess_t cleanup_func, smx_process_t process);
-static void smx_ctx_raw_free(smx_context_t context);
-static void smx_ctx_raw_wrapper(smx_ctx_raw_t context);
-static void smx_ctx_raw_stop(smx_context_t context);
-static void smx_ctx_raw_suspend_serial(smx_context_t context);
-static void smx_ctx_raw_resume_serial(smx_process_t first_process);
-#ifdef TIME_BENCH_PER_SR
-static void smx_ctx_raw_runall_serial(xbt_dynar_t processes);
-void smx_ctx_raw_new_sr(void);
-#else
-static void smx_ctx_raw_runall_serial(void);
-#endif
-static void smx_ctx_raw_suspend_parallel(smx_context_t context);
-static void smx_ctx_raw_resume_parallel(smx_process_t first_process);
-static void smx_ctx_raw_runall_parallel(void);
-static void smx_ctx_raw_runall(void);
-
-/**
- * \brief Initializes the raw context factory.
- * \param factory where to initialize the factory
- */
-void SIMIX_ctx_raw_factory_init(smx_context_factory_t *factory)
-{
-
- XBT_VERB("Using raw contexts. Because the glibc is just not good enough for us.");
- smx_ctx_base_factory_init(factory);
-
- (*factory)->finalize = smx_ctx_raw_factory_finalize;
- (*factory)->create_context = smx_ctx_raw_create_context;
- /* Do not overload that method (*factory)->finalize */
- (*factory)->free = smx_ctx_raw_free;
- (*factory)->stop = smx_ctx_raw_stop;
- (*factory)->name = "smx_raw_context_factory";
-
- if (SIMIX_context_is_parallel()) {
-#ifdef CONTEXT_THREADS
- int nthreads = SIMIX_context_get_nthreads();
- xbt_os_thread_key_create(&raw_worker_id_key);
- raw_parmap = xbt_parmap_new(nthreads, SIMIX_context_get_parallel_mode());
- raw_workers_context = xbt_new(smx_ctx_raw_t, nthreads);
- raw_maestro_context=NULL;
-
-#endif
- if (SIMIX_context_get_parallel_threshold() > 1) {
- /* choose dynamically */
- (*factory)->runall = smx_ctx_raw_runall;
- (*factory)->suspend = NULL;
- }
- else {
- /* always parallel */
- (*factory)->runall = smx_ctx_raw_runall_parallel;
- (*factory)->suspend = smx_ctx_raw_suspend_parallel;
- }
- }
- else {
- /* always serial */
- (*factory)->runall = smx_ctx_raw_runall_serial;
- (*factory)->suspend = smx_ctx_raw_suspend_serial;
- }
-#ifdef TIME_BENCH_ENTIRE_SRS
- (*factory)->runall = smx_ctx_raw_runall;
- (*factory)->suspend = NULL;
- timer = xbt_os_timer_new();
-#endif
-
-#ifdef ADAPTIVE_THRESHOLD
- round_time = xbt_os_timer_new();
- reached_seq_limit = 0;
- reached_par_limit = 0;
-#endif
-
-#ifdef TIME_BENCH_PER_SR
- timer = xbt_os_timer_new();
-#endif
-}
-
-/**
- * \brief Finalizes the raw context factory.
- * \param factory the raw context factory
- */
-static int smx_ctx_raw_factory_finalize(smx_context_factory_t *factory)
-{
-#ifdef TIME_BENCH_PER_SR
- XBT_VERB("Total wasted time in %u SR: %f", sr_count, time_wasted_sr);
- XBT_VERB("Total wasted time in %u SSR: %f", ssr_count, time_wasted_ssr);
-#endif
-
-#ifdef CONTEXT_THREADS
- if (raw_parmap)
- xbt_parmap_destroy(raw_parmap);
- xbt_free(raw_workers_context);
-#endif
- return smx_ctx_base_factory_finalize(factory);
-}
-
-/**
- * \brief Creates a new raw context.
- * \param code main function of this context or NULL to create the maestro
- * context
- * \param argc argument number
- * \param argv arguments to pass to the main function
- * \param cleanup_func a function to call to free the user data when the
- * context finished
- * \param process SIMIX process
- */
-static smx_context_t
-smx_ctx_raw_create_context(xbt_main_func_t code, int argc, char **argv,
- void_pfn_smxprocess_t cleanup_func,
- smx_process_t process)
-{
-
- smx_ctx_raw_t context =
- (smx_ctx_raw_t) smx_ctx_base_factory_create_context_sized(
- sizeof(s_smx_ctx_raw_t),
- code,
- argc,
- argv,
- cleanup_func,
- process);
-
- /* if the user provided a function for the process then use it,
- otherwise it is the context for maestro */
- if (code) {
- context->malloced_stack = (char*) SIMIX_context_stack_new();
- context->stack_top =
- raw_makecontext(context->malloced_stack,
- smx_context_usable_stack_size,
- (void_f_pvoid_t)smx_ctx_raw_wrapper, context);
-
- } else {
- if(process != NULL && raw_maestro_context==NULL)
- raw_maestro_context = context;
-
- if(MC_is_active())
- MC_ignore_heap(&(raw_maestro_context->stack_top), sizeof(raw_maestro_context->stack_top));
-
- }
-
- return (smx_context_t) context;
-}
-
-/**
- * \brief Destroys a raw context.
- * \param context a raw context
- */
-static void smx_ctx_raw_free(smx_context_t context)
-{
- if (context) {
- SIMIX_context_stack_delete(((smx_ctx_raw_t) context)->malloced_stack);
- }
- smx_ctx_base_free(context);
-}
-
-/**
- * \brief Wrapper for the main function of a context.
- * \param context a raw context
- */
-static void smx_ctx_raw_wrapper(smx_ctx_raw_t context)
-{
- (context->super.code) (context->super.argc, context->super.argv);
-
- smx_ctx_raw_stop((smx_context_t) context);
-}
-
-/**
- * \brief Stops a raw context.
- *
- * This function is called when the main function of the context if finished.
- *
- * \param context the current context
- */
-static void smx_ctx_raw_stop(smx_context_t context)
-{
- smx_ctx_base_stop(context);
- simix_global->context_factory->suspend(context);
-}
-
-/**
- * \brief Suspends a running context and resumes another one or returns to
- * maestro.
- * \param context the current context
- */
-static void smx_ctx_raw_suspend_serial(smx_context_t context)
-{
- /* determine the next context */
- smx_context_t next_context;
- unsigned long int i;
-#ifdef TIME_BENCH_PER_SR
- i = ++raw_process_index;
-#else
- i = raw_process_index++;
-#endif
- if (i < xbt_dynar_length(simix_global->process_to_run)) {
- /* execute the next process */
- XBT_DEBUG("Run next process");
- next_context = xbt_dynar_get_as(
- simix_global->process_to_run, i, smx_process_t)->context;
- }
- else {
- /* all processes were run, return to maestro */
- XBT_DEBUG("No more process to run");
- next_context = (smx_context_t) raw_maestro_context;
- }
- SIMIX_context_set_current(next_context);
- raw_swapcontext(&((smx_ctx_raw_t) context)->stack_top,
- ((smx_ctx_raw_t) next_context)->stack_top);
-}
-
-/**
- * \brief Resumes sequentially all processes ready to run.
- * \param first_process the first process to resume
- */
-static void smx_ctx_raw_resume_serial(smx_process_t first_process)
-{
- smx_ctx_raw_t context = (smx_ctx_raw_t) first_process->context;
- SIMIX_context_set_current((smx_context_t) context);
- raw_swapcontext(&raw_maestro_context->stack_top,
- ((smx_ctx_raw_t) context)->stack_top);
-}
-
-#ifdef TIME_BENCH_PER_SR
-static void smx_ctx_raw_runall_serial(xbt_dynar_t processes)
-{
- smx_process_t process;
- unsigned int cursor;
- double elapsed = 0;
- double tmax = 0;
- unsigned long num_proc = xbt_dynar_length(simix_global->process_to_run);
- unsigned int t=0;
- unsigned int data_size = (num_proc / NUM_THREADS) + ((num_proc % NUM_THREADS) ? 1 : 0);
-
- ssr_count++;
- time_thread_ssr[0] = 0;
- xbt_dynar_foreach(processes, cursor, process){
- XBT_VERB("Schedule item %u of %lu",cursor,num_proc);
- if(cursor >= t * data_size + data_size){
- if(time_thread_ssr[t] > tmax)
- tmax = time_thread_ssr[t];
- t++;
- time_thread_ssr[t] = 0;
- }
-
- if(new_sr){
- ((smx_ctx_raw_t)process->context)->thread = t;
- time_thread_sr[t] = 0;
- }
-
- xbt_os_cputimer_start(timer);
- smx_ctx_raw_resume_serial(process);
- xbt_os_cputimer_stop(timer);
- elapsed = xbt_os_timer_elapsed(timer);
- time_thread_ssr[t] += elapsed;
- time_thread_sr[((smx_ctx_raw_t)process->context)->thread] += elapsed;
- }
-
- if(new_sr)
- new_sr = FALSE;
-
- if(time_thread_ssr[t] > tmax)
- tmax = time_thread_ssr[t];
-
- for(cursor=0; cursor <= t; cursor++){
- XBT_VERB("Time SSR thread %u = %f (max %f)", cursor, time_thread_ssr[cursor], tmax);
- time_wasted_ssr += tmax - time_thread_ssr[cursor];
- }
-}
-
-void smx_ctx_raw_new_sr(void)
-{
- int i;
- double tmax = 0;
- new_sr = TRUE;
- sr_count++;
- for(i=0; i < NUM_THREADS; i++){
- if(time_thread_sr[i] > tmax)
- tmax = time_thread_sr[i];
- }
-
- for(i=0; i < NUM_THREADS; i++){
- XBT_CRITICAL("Time SR thread %u = %f (max %f)", i, time_thread_sr[i], tmax);
- time_wasted_sr += tmax - time_thread_sr[i];
- }
-
- XBT_CRITICAL("Total time SR %u = %f, %d", sr_count, tmax, xbt_dynar_length(simix_global->process_that_ran));
- XBT_CRITICAL("New scheduling round");
-}
-#else
-/**
- * \brief Resumes sequentially all processes ready to run.
- */
-static void smx_ctx_raw_runall_serial(void)
-{
- smx_process_t first_process =
- xbt_dynar_get_as(simix_global->process_to_run, 0, smx_process_t);
- raw_process_index = 1;
-
- /* execute the first process */
- smx_ctx_raw_resume_serial(first_process);
-}
-#endif
-
-/**
- * \brief Suspends a running context and resumes another one or returns to
- * the main function of the current worker thread.
- * \param context the context of the current worker thread
- */
-static void smx_ctx_raw_suspend_parallel(smx_context_t context)
-{
-#ifdef CONTEXT_THREADS
- /* determine the next context */
- smx_process_t next_work = (smx_process_t) xbt_parmap_next(raw_parmap);
- smx_context_t next_context;
- raw_stack_t next_stack;
-
- if (next_work != NULL) {
- /* there is a next process to resume */
- XBT_DEBUG("Run next process");
- next_context = next_work->context;
- next_stack = ((smx_ctx_raw_t) next_context)->stack_top;
- }
- else {
- /* all processes were run, go to the barrier */
- XBT_DEBUG("No more processes to run");
-
- unsigned long worker_id =
- (unsigned long)(uintptr_t) xbt_os_thread_get_specific(raw_worker_id_key);
-
- next_context = (smx_context_t)raw_workers_context[worker_id];
- XBT_DEBUG("Restoring worker stack %lu (working threads = %lu)",
- worker_id, raw_threads_working);
- next_stack = ((smx_ctx_raw_t)next_context)->stack_top;
- }
-
- SIMIX_context_set_current(next_context);
- raw_swapcontext(&((smx_ctx_raw_t) context)->stack_top, next_stack);
-#endif
-}
-
-/**
- * \brief Resumes sequentially in the current worker thread the processes ready
- * to run.
- * \param first_process the first process to resume
- */
-static void smx_ctx_raw_resume_parallel(smx_process_t first_process)
-{
-#ifdef CONTEXT_THREADS
- unsigned long worker_id = __sync_fetch_and_add(&raw_threads_working, 1);
- xbt_os_thread_set_specific(raw_worker_id_key, (void*)(uintptr_t) worker_id);
- smx_ctx_raw_t worker_context = (smx_ctx_raw_t)SIMIX_context_self();
- raw_workers_context[worker_id] = worker_context;
- XBT_DEBUG("Saving worker stack %lu", worker_id);
- raw_stack_t* worker_stack = &(worker_context)->stack_top;
-
-
- smx_context_t context = first_process->context;
- SIMIX_context_set_current(context);
- raw_swapcontext(worker_stack, ((smx_ctx_raw_t) context)->stack_top);
-#endif
-}
-
-/**
- * \brief Resumes in parallel all processes ready to run.
- */
-static void smx_ctx_raw_runall_parallel(void)
-{
-#ifdef CONTEXT_THREADS
- raw_threads_working = 0;
- xbt_parmap_apply(raw_parmap, (void_f_pvoid_t) smx_ctx_raw_resume_parallel,
- simix_global->process_to_run);
-#else
- xbt_die("You asked for a parallel execution, but you don't have any threads.");
-#endif
-}
-
-/**
- * \brief Resumes all processes ready to run.
- */
-#ifdef ADAPTIVE_THRESHOLD
-static void smx_ctx_raw_runall(void)
-{
- unsigned long nb_processes = xbt_dynar_length(simix_global->process_to_run);
- unsigned long threshold = SIMIX_context_get_parallel_threshold();
- reached_seq_limit = (seq_sched_round % SCHED_ROUND_LIMIT == 0);
- reached_par_limit = (par_sched_round % SCHED_ROUND_LIMIT == 0);
-
- if(reached_seq_limit && reached_par_limit){
- par_ratio = (par_proc_that_ran != 0) ? (par_time / (double)par_proc_that_ran) : 0;
- seq_ratio = (seq_proc_that_ran != 0) ? (seq_time / (double)seq_proc_that_ran) : 0;
- if(seq_ratio > par_ratio){
- if(nb_processes < avg_par_proc) {
- threshold = (threshold>2) ? threshold - 1 : threshold ;
- SIMIX_context_set_parallel_threshold(threshold);
- }
- } else {
- if(nb_processes > avg_seq_proc){
- SIMIX_context_set_parallel_threshold(threshold+1);
- }
- }
- }
-
- //XBT_CRITICAL("Thresh: %d", SIMIX_context_get_parallel_threshold());
- if (nb_processes >= SIMIX_context_get_parallel_threshold()) {
- simix_global->context_factory->suspend = smx_ctx_raw_suspend_parallel;
- if(nb_processes < par_window){
- par_sched_round++;
- xbt_os_walltimer_start(round_time);
- smx_ctx_raw_runall_parallel();
- xbt_os_walltimer_stop(round_time);
- par_time += xbt_os_timer_elapsed(round_time);
-
- prev_avg_par_proc = avg_par_proc;
- delta = nb_processes - avg_par_proc;
- avg_par_proc = (par_sched_round==1) ? nb_processes : avg_par_proc + delta / (double) par_sched_round;
-
- if(par_sched_round>=2){
- s_par_proc = s_par_proc + (nb_processes - prev_avg_par_proc) * delta;
- sd_par_proc = sqrt(s_par_proc / (par_sched_round-1));
- par_window = (int) (avg_par_proc + sd_par_proc);
- }else{
- sd_par_proc = 0;
- }
-
- par_proc_that_ran += nb_processes;
- } else{
- smx_ctx_raw_runall_parallel();
- }
- } else {
- simix_global->context_factory->suspend = smx_ctx_raw_suspend_serial;
- if(nb_processes > seq_window){
- seq_sched_round++;
- xbt_os_walltimer_start(round_time);
- smx_ctx_raw_runall_serial();
- xbt_os_walltimer_stop(round_time);
- seq_time += xbt_os_timer_elapsed(round_time);
-
- prev_avg_seq_proc = avg_seq_proc;
- delta = (nb_processes-avg_seq_proc);
- avg_seq_proc = (seq_sched_round==1) ? nb_processes : avg_seq_proc + delta / (double) seq_sched_round;
-
- if(seq_sched_round>=2){
- s_seq_proc = s_seq_proc + (nb_processes - prev_avg_seq_proc)*delta;
- sd_seq_proc = sqrt(s_seq_proc / (seq_sched_round-1));
- seq_window = (int) (avg_seq_proc - sd_seq_proc);
- } else {
- sd_seq_proc = 0;
- }
-
- seq_proc_that_ran += nb_processes;
- } else {
- smx_ctx_raw_runall_serial();
- }
- }
-}
-
-#else
-
-static void smx_ctx_raw_runall(void)
-{
-#ifdef TIME_BENCH_ENTIRE_SRS
- sr_count++;
- timer = xbt_os_timer_new();
- double elapsed = 0;
-#endif
- unsigned long nb_processes = xbt_dynar_length(simix_global->process_to_run);
- if (SIMIX_context_is_parallel()
- && (unsigned long) SIMIX_context_get_parallel_threshold() < nb_processes) {
- XBT_DEBUG("Runall // %lu", nb_processes);
- simix_global->context_factory->suspend = smx_ctx_raw_suspend_parallel;
-
- #ifdef TIME_BENCH_ENTIRE_SRS
- xbt_os_walltimer_start(timer);
- #endif
-
- smx_ctx_raw_runall_parallel();
-
- #ifdef TIME_BENCH_ENTIRE_SRS
- xbt_os_walltimer_stop(timer);
- elapsed = xbt_os_timer_elapsed(timer);
- #endif
- } else {
- XBT_DEBUG("Runall serial %lu", nb_processes);
- simix_global->context_factory->suspend = smx_ctx_raw_suspend_serial;
-
- #ifdef TIME_BENCH_PER_SR
- smx_ctx_raw_runall_serial(simix_global->process_to_run);
- #else
-
- #ifdef TIME_BENCH_ENTIRE_SRS
- xbt_os_walltimer_start(timer);
- #endif
-
- smx_ctx_raw_runall_serial();
-
- #ifdef TIME_BENCH_ENTIRE_SRS
- xbt_os_walltimer_stop(timer);
- elapsed = xbt_os_timer_elapsed(timer);
- #endif
- #endif
- }
-
-#ifdef TIME_BENCH_ENTIRE_SRS
- XBT_CRITICAL("Total time SR %u = %f, %d", sr_count, elapsed, nb_processes);
-#endif
-}
-#endif
