smx_rdv_t mailbox_small;
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;
+ xbt_bar_t finalization_barrier;
} s_smpi_process_data_t;
static smpi_process_data_t *process_data = NULL;
-static int process_count = 0;
+int process_count = 0;
+int* index_to_process_data = NULL;
-MPI_Comm MPI_COMM_WORLD = MPI_COMM_NULL;
+
+MPI_Comm MPI_COMM_WORLD = MPI_COMM_UNINITIALIZED;
int MPI_UNIVERSE_SIZE;
MPI_Errhandler *MPI_ERRORS_RETURN = NULL;
void smpi_process_init(int *argc, char ***argv)
{
- int index;
+ int index=-1;
smpi_process_data_t data;
smx_process_t proc;
if (argc && argv) {
proc = SIMIX_process_self();
- index = atoi((*argv)[1]);
-#ifdef SMPI_F2C
- smpi_current_rank = index;
-#endif
-
+ //FIXME: dirty cleanup method to avoid using msg cleanup functions on these processes when using MSG+SMPI
+ proc->context->cleanup_func=SIMIX_process_cleanup;
+ char* instance_id = (*argv)[1];
+ int rank = atoi((*argv)[2]);
+ index = smpi_process_index_of_smx_process(proc);
+
+ if(!index_to_process_data){
+ index_to_process_data=(int*)xbt_malloc(SIMIX_process_count()*sizeof(int));
+ }
+ MPI_Comm* temp_comm_world;
+ xbt_bar_t temp_bar;
+ smpi_deployment_register_process(instance_id, rank, index, &temp_comm_world ,&temp_bar);
data = smpi_process_remote_data(index);
+ data->comm_world = temp_comm_world;
+ if(temp_bar != NULL) data->finalization_barrier = temp_bar;
+ data->index = index;
+ data->instance_id = instance_id;
+ xbt_free(simcall_process_get_data(proc));
simcall_process_set_data(proc, data);
- if (*argc > 2) {
+ if (*argc > 3) {
free((*argv)[1]);
- memmove(&(*argv)[1], &(*argv)[2], sizeof(char *) * (*argc - 2));
+ memmove(&(*argv)[0], &(*argv)[2], sizeof(char *) * (*argc - 2));
(*argv)[(*argc) - 1] = NULL;
+ (*argv)[(*argc) - 2] = NULL;
}
- (*argc)--;
+ (*argc)-=2;
data->argc = argc;
data->argv = argv;
// set the process attached to the mailbox
simcall_rdv_set_receiver(data->mailbox_small, proc);
+
XBT_DEBUG("<%d> New process in the game: %p", index, proc);
if(smpi_privatize_global_variables){
- switch_data_segment(index);
+ smpi_switch_data_segment(index);
}
}
{
int index = smpi_process_index();
if(smpi_privatize_global_variables){
- switch_data_segment(index);
+ smpi_switch_data_segment(index);
}
- process_data[index]->state = SMPI_FINALIZED;
+ process_data[index_to_process_data[index]]->state = SMPI_FINALIZED;
XBT_DEBUG("<%d> Process left the game", index);
}
*/
void smpi_process_finalize(void)
{
-#if 0
- // wait for all pending asynchronous comms to finish
- while (SIMIX_process_has_pending_comms(SIMIX_process_self())) {
- simcall_process_sleep(0.01);
- }
-#else
- int i;
- int size = smpi_comm_size(MPI_COMM_WORLD);
- int rank = smpi_comm_rank(MPI_COMM_WORLD);
- /* All non-root send & receive zero-length message. */
- if (rank > 0) {
- smpi_mpi_ssend (NULL, 0, MPI_BYTE, 0,
- COLL_TAG_BARRIER,
- MPI_COMM_WORLD);
- smpi_mpi_recv (NULL, 0, MPI_BYTE, 0,
- COLL_TAG_BARRIER,
- MPI_COMM_WORLD, MPI_STATUS_IGNORE);
- }
- /* The root collects and broadcasts the messages. */
- else {
- MPI_Request* requests;
- requests = (MPI_Request*)malloc( size * sizeof(MPI_Request) );
- for (i = 1; i < size; ++i) {
- requests[i] = smpi_mpi_irecv(NULL, 0, MPI_BYTE, MPI_ANY_SOURCE,
- COLL_TAG_BARRIER, MPI_COMM_WORLD
- );
- }
- smpi_mpi_waitall( size-1, requests+1, MPI_STATUSES_IGNORE );
- for (i = 1; i < size; ++i) {
- requests[i] = smpi_mpi_issend(NULL, 0, MPI_BYTE, i,
- COLL_TAG_BARRIER,
- MPI_COMM_WORLD
- );
- }
- smpi_mpi_waitall( size-1, requests+1, MPI_STATUSES_IGNORE );
- free( requests );
- }
-#endif
+ // This leads to an explosion of the search graph
+ // which cannot be reduced:
+ if(MC_is_active())
+ return;
+
+ int index = smpi_process_index();
+ // wait for all pending asynchronous comms to finish
+ xbt_barrier_wait(process_data[index_to_process_data[index]]->finalization_barrier);
}
/**
{
int index = smpi_process_index();
if (index != MPI_UNDEFINED)
- return (process_data[index]->state == SMPI_FINALIZED);
+ return (process_data[index_to_process_data[index]]->state == SMPI_FINALIZED);
else
return 0;
}
{
int index = smpi_process_index();
return ( (index != MPI_UNDEFINED)
- && (process_data[index]->state == SMPI_INITIALIZED));
+ && (process_data[index_to_process_data[index]]->state == SMPI_INITIALIZED));
}
/**
void smpi_process_mark_as_initialized(void)
{
int index = smpi_process_index();
- if ((index != MPI_UNDEFINED) && (!process_data[index]->state != SMPI_FINALIZED))
- process_data[index]->state = SMPI_INITIALIZED;
+ if ((index != MPI_UNDEFINED) && (process_data[index_to_process_data[index]]->state != SMPI_FINALIZED))
+ process_data[index_to_process_data[index]]->state = SMPI_INITIALIZED;
}
-#ifdef SMPI_F2C
-int smpi_process_argc(void)
-{
- smpi_process_data_t data = smpi_process_data();
- return data->argc ? *(data->argc) - 1 : 0;
-}
-
-int smpi_process_getarg(integer * index, char *dst, ftnlen len)
-{
- smpi_process_data_t data = smpi_process_data();
- char *arg;
- ftnlen i;
-
- 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;
-}
-#endif
-
int smpi_global_size(void)
{
char *value = getenv("SMPI_GLOBAL_SIZE");
smpi_process_data_t smpi_process_remote_data(int index)
{
- return process_data[index];
+ return process_data[index_to_process_data[index]];
}
void smpi_process_set_user_data(void *data)
return data ? data->index : MPI_UNDEFINED;
}
+MPI_Comm smpi_process_comm_world(void)
+{
+ smpi_process_data_t data = smpi_process_data();
+ //return MPI_COMM_NULL if not initialized
+ return data ? *data->comm_world : MPI_COMM_NULL;
+}
+
smx_rdv_t smpi_process_mailbox(void)
{
smpi_process_data_t data = smpi_process_data();
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);
+ data->comm_self = smpi_comm_new(group, NULL);
smpi_group_set_mapping(group, smpi_process_index(), 0);
}
return data->comm_self;
}
+MPI_Comm smpi_process_get_comm_intra(void)
+{
+ 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();
return data->sampling;
}
+
void print_request(const char *message, MPI_Request request)
{
- XBT_DEBUG
+ 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 smpi_comm_copy_buffer_callback(smx_action_t comm,
+void smpi_comm_copy_buffer_callback(smx_action_t comm,
void *buff, size_t buff_size)
{
XBT_DEBUG("Copy the data over");
&& ((char*)buff < start_data_exe + size_data_exe )
){
XBT_DEBUG("Privatization : We are copying from a zone inside global memory... Saving data to temp buffer !");
- switch_data_segment(((smpi_process_data_t)SIMIX_process_get_data(comm->comm.src_proc))->index);
+ smpi_switch_data_segment(((smpi_process_data_t)SIMIX_process_get_data(comm->comm.src_proc))->index);
tmpbuff = (void*)xbt_malloc(buff_size);
memcpy(tmpbuff, buff, buff_size);
}
&& ((char*)comm->comm.dst_buff < start_data_exe + size_data_exe )
){
XBT_DEBUG("Privatization : We are copying to a zone inside global memory - Switch data segment");
- switch_data_segment(((smpi_process_data_t)SIMIX_process_get_data(comm->comm.dst_proc))->index);
+ smpi_switch_data_segment(((smpi_process_data_t)SIMIX_process_get_data(comm->comm.dst_proc))->index);
}
//It seems that the request is used after the call there this should
//be free somewhereelse but where???
//xbt_free(comm->comm.src_data);// inside SMPI the request is keep
- //inside the user data and should be free
+ //inside the user data and should be free
comm->comm.src_buff = NULL;
}
}
+static void smpi_check_options(){
+ //check correctness of MPI parameters
+
+ xbt_assert(sg_cfg_get_int("smpi/async_small_thres") <=
+ sg_cfg_get_int("smpi/send_is_detached_thres"));
+
+ if (sg_cfg_is_default_value("smpi/running_power")) {
+ XBT_INFO("You did not set the power of the host running the simulation. "
+ "The timings will certainly not be accurate. "
+ "Use the option \"--cfg=smpi/running_power:<flops>\" to set its value."
+ "Check http://simgrid.org/simgrid/latest/doc/options.html#options_smpi_bench for more information.");
+ }
+}
+
+int smpi_enabled(void) {
+ return process_data != NULL;
+}
+
void smpi_global_init(void)
{
int i;
MPI_Group group;
char name[MAILBOX_NAME_MAXLEN];
+ int smpirun=0;
- SIMIX_comm_set_copy_data_callback(&smpi_comm_copy_buffer_callback);
- process_count = SIMIX_process_count();
- process_data = xbt_new(smpi_process_data_t, process_count);
+
+ if (process_count == 0){
+ process_count = SIMIX_process_count();
+ smpirun=1;
+ }
+ process_data = xbt_new0(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]->index = i;
process_data[i]->argc = NULL;
process_data[i]->argv = NULL;
process_data[i]->mailbox = simcall_rdv_create(get_mailbox_name(name, i));
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 = NULL;
process_data[i]->state = SMPI_UNINITIALIZED;
process_data[i]->sampling = 0;
+ process_data[i]->finalization_barrier = NULL;
}
- group = smpi_group_new(process_count);
- MPI_COMM_WORLD = smpi_comm_new(group);
- MPI_UNIVERSE_SIZE = smpi_comm_size(MPI_COMM_WORLD);
- for (i = 0; i < process_count; i++) {
- smpi_group_set_mapping(group, i, i);
- }
-
- //check correctness of MPI parameters
-
- xbt_assert(sg_cfg_get_int("smpi/async_small_thres") <=
- sg_cfg_get_int("smpi/send_is_detached_thres"));
-
- if (sg_cfg_is_default_value("smpi/running_power")) {
- XBT_INFO("You did not set the power of the host running the simulation. "
- "The timings will certainly not be accurate. "
- "Use the option \"--cfg=smpi/running_power:<flops>\" to set its value."
- "Check http://simgrid.org/simgrid/latest/doc/options.html#options_smpi_bench for more information. ");
+ //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, NULL);
+ xbt_bar_t bar=xbt_barrier_init(process_count);
+
+ MPI_UNIVERSE_SIZE = smpi_comm_size(MPI_COMM_WORLD);
+ for (i = 0; i < process_count; i++) {
+ smpi_group_set_mapping(group, i, i);
+ process_data[i]->finalization_barrier = bar;
+ }
}
- if(smpi_privatize_global_variables)
- smpi_initialize_global_memory_segments();
}
void smpi_global_destroy(void)
int i;
smpi_bench_destroy();
- while (smpi_group_unuse(smpi_comm_group(MPI_COMM_WORLD)) > 0);
- xbt_free(MPI_COMM_WORLD);
+ if (MPI_COMM_WORLD != MPI_COMM_UNINITIALIZED){
+ while (smpi_group_unuse(smpi_comm_group(MPI_COMM_WORLD)) > 0);
+ xbt_free(MPI_COMM_WORLD);
+ xbt_barrier_destroy(process_data[0]->finalization_barrier);
+ }else{
+ smpi_deployment_cleanup_instances();
+ }
MPI_COMM_WORLD = MPI_COMM_NULL;
for (i = 0; i < count; i++) {
if(process_data[i]->comm_self!=MPI_COMM_NULL){
smpi_group_unuse(smpi_comm_group(process_data[i]->comm_self));
smpi_comm_destroy(process_data[i]->comm_self);
}
+ if(process_data[i]->comm_intra!=MPI_COMM_NULL){
+ smpi_group_unuse(smpi_comm_group(process_data[i]->comm_intra));
+ smpi_comm_destroy(process_data[i]->comm_intra);
+ }
xbt_os_timer_free(process_data[i]->timer);
simcall_rdv_destroy(process_data[i]->mailbox);
simcall_rdv_destroy(process_data[i]->mailbox_small);
}
xbt_free(process_data);
process_data = NULL;
+
+ xbt_free(index_to_process_data);
if(smpi_privatize_global_variables)
smpi_destroy_global_memory_segments();
smpi_free_static();
}
-/* 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;
-
#ifndef WIN32
void __attribute__ ((weak)) user_main_()
{
return smpi_main(smpi_simulated_main_, argc, argv);
}
-int __attribute__ ((weak)) MAIN__()
-{
- return smpi_main(smpi_simulated_main_, xargc, xargv);
-};
#endif
-int smpi_main(int (*realmain) (int argc, char *argv[]), int argc, char *argv[])
-{
- srand(SMPI_RAND_SEED);
-
- if (getenv("SMPI_PRETEND_CC") != NULL) {
- /* Hack to ensure that smpicc can pretend to be a simple
- * compiler. Particularly handy to pass it to the configuration tools */
- return 0;
- }
+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
XBT_LOG_CONNECT(smpi_mpi_dt);
XBT_LOG_CONNECT(smpi_pmpi);
XBT_LOG_CONNECT(smpi_replay);
+ XBT_LOG_CONNECT(smpi_rma);
+
+}
+
+
+static void smpi_init_options(){
+ int gather_id = find_coll_description(mpi_coll_gather_description,
+ sg_cfg_get_string("smpi/gather"));
+ mpi_coll_gather_fun = (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,
+ sg_cfg_get_string("smpi/allgather"));
+ mpi_coll_allgather_fun = (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,
+ sg_cfg_get_string("smpi/allgatherv"));
+ mpi_coll_allgatherv_fun = (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,
+ sg_cfg_get_string("smpi/allreduce"));
+ mpi_coll_allreduce_fun = (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,
+ sg_cfg_get_string("smpi/alltoall"));
+ mpi_coll_alltoall_fun = (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,
+ sg_cfg_get_string("smpi/alltoallv"));
+ mpi_coll_alltoallv_fun = (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,
+ sg_cfg_get_string("smpi/bcast"));
+ mpi_coll_bcast_fun = (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,
+ sg_cfg_get_string("smpi/reduce"));
+ mpi_coll_reduce_fun = (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,
+ sg_cfg_get_string("smpi/reduce_scatter"));
+ mpi_coll_reduce_scatter_fun = (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,
+ sg_cfg_get_string("smpi/scatter"));
+ mpi_coll_scatter_fun = (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,
+ sg_cfg_get_string("smpi/barrier"));
+ mpi_coll_barrier_fun = (int (*)(MPI_Comm comm))
+ mpi_coll_barrier_description[barrier_id].coll;
+
+ smpi_cpu_threshold = sg_cfg_get_double("smpi/cpu_threshold");
+ smpi_running_power = sg_cfg_get_double("smpi/running_power");
+ smpi_privatize_global_variables = sg_cfg_get_boolean("smpi/privatize_global_variables");
+ if (smpi_cpu_threshold < 0)
+ smpi_cpu_threshold = DBL_MAX;
+
+}
+
+int smpi_main(int (*realmain) (int argc, char *argv[]), int argc, char *argv[])
+{
+ srand(SMPI_RAND_SEED);
+
+ if (getenv("SMPI_PRETEND_CC") != NULL) {
+ /* Hack to ensure that smpicc can pretend to be a simple
+ * compiler. Particularly handy to pass it to the configuration tools */
+ return 0;
+ }
+
+ smpi_init_logs();
#ifdef HAVE_TRACING
TRACE_global_init(&argc, argv);
SIMIX_global_init(&argc, argv);
-#ifdef HAVE_TRACING
- TRACE_start();
-#endif
+ smpi_init_options();
// 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]);
- int gather_id = find_coll_description(mpi_coll_gather_description,
- sg_cfg_get_string("smpi/gather"));
- mpi_coll_gather_fun = (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,
- sg_cfg_get_string("smpi/allgather"));
- mpi_coll_allgather_fun = (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,
- sg_cfg_get_string("smpi/allgatherv"));
- mpi_coll_allgatherv_fun = (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,
- sg_cfg_get_string("smpi/allreduce"));
- mpi_coll_allreduce_fun = (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,
- sg_cfg_get_string("smpi/alltoall"));
- mpi_coll_alltoall_fun = (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,
- sg_cfg_get_string("smpi/alltoallv"));
- mpi_coll_alltoallv_fun = (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,
- sg_cfg_get_string("smpi/bcast"));
- mpi_coll_bcast_fun = (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,
- sg_cfg_get_string("smpi/reduce"));
- mpi_coll_reduce_fun = (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,
- sg_cfg_get_string("smpi/reduce_scatter"));
- mpi_coll_reduce_scatter_fun = (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,
- sg_cfg_get_string("smpi/scatter"));
- mpi_coll_scatter_fun = (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,
- sg_cfg_get_string("smpi/barrier"));
- mpi_coll_barrier_fun = (int (*)(MPI_Comm comm))
- mpi_coll_barrier_description[barrier_id].coll;
-
- smpi_cpu_threshold = sg_cfg_get_double("smpi/cpu_threshold");
- smpi_running_power = sg_cfg_get_double("smpi/running_power");
- smpi_privatize_global_variables = sg_cfg_get_boolean("smpi/privatize_global_variables");
- if (smpi_cpu_threshold < 0)
- smpi_cpu_threshold = DBL_MAX;
-
smpi_global_init();
+ smpi_check_options();
+
+ if(smpi_privatize_global_variables)
+ smpi_initialize_global_memory_segments();
+
/* Clean IO before the run */
fflush(stdout);
fflush(stderr);
return 0;
}
+
+// This function can be called from extern file, to initialize logs, options, and processes of smpi
+// without the need of smpirun
+void SMPI_init(){
+ smpi_init_logs();
+ smpi_init_options();
+ smpi_global_init();
+ smpi_check_options();
+#ifdef HAVE_TRACING
+ if (TRACE_is_enabled() && TRACE_is_configured()) {
+ TRACE_smpi_alloc();
+ }
+#endif
+ if(smpi_privatize_global_variables)
+ smpi_initialize_global_memory_segments();
+}
+
+void SMPI_finalize(){
+ smpi_global_destroy();
+}
