void shmem_init(void)
{
int err = OSHMEM_SUCCESS;
int provided;
int required = SHMEM_THREAD_SINGLE;
if (oshmem_shmem_initialized) {
/*
* SPEC: If start_pes() is called multiple times, subsequent calls have no effect.
*/
return;
}
shmem_api_logger_output = opal_output_open(NULL);
opal_output_set_verbosity(shmem_api_logger_output,
oshmem_shmem_api_verbose);
err = oshmem_shmem_init(0, NULL, required, &provided);
if (OSHMEM_SUCCESS != err) {
/* since spec does not propagete error to user we can only abort */
SHMEM_API_ERROR("SHMEM failed to initialize - aborting");
oshmem_shmem_abort(-1);
}
OPAL_CR_INIT_LIBRARY();
}
int MPI_Init(int *argc, char ***argv)
{
int err;
int provided;
char *env;
int required = MPI_THREAD_SINGLE;
/* Ensure that we were not already initialized or finalized */
if (ompi_mpi_finalized) {
if (0 == ompi_comm_rank(MPI_COMM_WORLD)) {
orte_show_help("help-mpi-api.txt", "mpi-function-after-finalize",
true, FUNC_NAME);
}
return ompi_errhandler_invoke(NULL, NULL, OMPI_ERRHANDLER_TYPE_COMM,
MPI_ERR_OTHER, FUNC_NAME);
} else if (ompi_mpi_initialized) {
if (0 == ompi_comm_rank(MPI_COMM_WORLD)) {
orte_show_help("help-mpi-api.txt", "mpi-initialize-twice",
true, FUNC_NAME);
}
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_OTHER, FUNC_NAME);
}
/* check for environment overrides for required thread level. If
there is, check to see that it is a valid/supported thread level.
If not, default to MPI_THREAD_MULTIPLE. */
if (NULL != (env = getenv("OMPI_MPI_THREAD_LEVEL"))) {
required = atoi(env);
if (required < MPI_THREAD_SINGLE || required > MPI_THREAD_MULTIPLE) {
required = MPI_THREAD_MULTIPLE;
}
}
/* Call the back-end initialization function (we need to put as
little in this function as possible so that if it's profiled, we
don't lose anything) */
if (NULL != argc && NULL != argv) {
err = ompi_mpi_init(*argc, *argv, required, &provided);
} else {
err = ompi_mpi_init(0, NULL, required, &provided);
}
/* Since we don't have a communicator to invoke an errorhandler on
here, don't use the fancy-schmancy ERRHANDLER macros; they're
really designed for real communicator objects. Just use the
back-end function directly. */
if (MPI_SUCCESS != err) {
return ompi_errhandler_invoke(NULL, NULL, OMPI_ERRHANDLER_TYPE_COMM,
err < 0 ? ompi_errcode_get_mpi_code(err) :
err, FUNC_NAME);
}
OPAL_CR_INIT_LIBRARY();
return MPI_SUCCESS;
}
int MPI_Init_thread(int *argc, char ***argv, int required,
int *provided)
{
int err;
ompi_hook_base_mpi_init_thread_top(argc, argv, required, provided);
if ( MPI_PARAM_CHECK ) {
if (required < MPI_THREAD_SINGLE || required > MPI_THREAD_MULTIPLE) {
ompi_mpi_errors_are_fatal_comm_handler(NULL, NULL, FUNC_NAME);
}
}
*provided = required;
/* Call the back-end initialization function (we need to put as
little in this function as possible so that if it's profiled, we
don't lose anything) */
if (NULL != argc && NULL != argv) {
err = ompi_mpi_init(*argc, *argv, required, provided, false);
} else {
err = ompi_mpi_init(0, NULL, required, provided, false);
}
/* Since we don't have a communicator to invoke an errorhandler on
here, don't use the fancy-schmancy ERRHANDLER macros; they're
really designed for real communicator objects. Just use the
back-end function directly. */
if (MPI_SUCCESS != err) {
return ompi_errhandler_invoke(NULL, NULL, OMPI_ERRHANDLER_TYPE_COMM,
err < 0 ? ompi_errcode_get_mpi_code(err) :
err, FUNC_NAME);
}
OPAL_CR_INIT_LIBRARY();
SPC_INIT();
ompi_hook_base_mpi_init_thread_bottom(argc, argv, required, provided);
return MPI_SUCCESS;
}
static inline void _shmem_init(int required, int *provided)
{
int err = OSHMEM_SUCCESS;
if (oshmem_shmem_initialized) {
/*
* SPEC: If start_pes() is called multiple times, subsequent calls have no effect.
*/
return;
}
err = oshmem_shmem_init(0, NULL, required, provided);
if (OSHMEM_SUCCESS != err) {
/* since spec does not propagete error to user we can only abort */
SHMEM_API_ERROR("SHMEM failed to initialize - aborting");
oshmem_shmem_abort(-1);
}
OPAL_CR_INIT_LIBRARY();
#if HAVE_ON_EXIT
on_exit(shmem_onexit, NULL);
#endif
}
int MPI_Init(int *argc, char ***argv)
{
int err;
int provided;
char *env;
int required = MPI_THREAD_SINGLE;
/* Ensure that we were not already initialized or finalized */
if (ompi_mpi_finalized) {
if (0 == ompi_comm_rank(MPI_COMM_WORLD)) {
opal_show_help("help-mpi-api.txt",
"mpi-function-after-finalize", true, FUNC_NAME);
}
return ompi_errhandler_invoke(NULL, NULL,
OMPI_ERRHANDLER_TYPE_COMM,
MPI_ERR_OTHER, FUNC_NAME);
} else if (ompi_mpi_initialized) {
if (0 == ompi_comm_rank(MPI_COMM_WORLD)) {
opal_show_help("help-mpi-api.txt", "mpi-initialize-twice",
true, FUNC_NAME);
}
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_OTHER,
FUNC_NAME);
}
/* check for environment overrides for required thread level. If
there is, check to see that it is a valid/supported thread level.
If not, default to MPI_THREAD_MULTIPLE. */
if (NULL != (env = getenv("OMPI_MPI_THREAD_LEVEL"))) {
required = atoi(env);
if (required < MPI_THREAD_SINGLE || required > MPI_THREAD_MULTIPLE) {
required = MPI_THREAD_MULTIPLE;
}
}
/* Call the back-end initialization function (we need to put as
little in this function as possible so that if it's profiled, we
don't lose anything) */
if (NULL != argc && NULL != argv) {
err = ompi_mpi_init(*argc, *argv, required, &provided);
} else {
err = ompi_mpi_init(0, NULL, required, &provided);
}
/* Since we don't have a communicator to invoke an errorhandler on
here, don't use the fancy-schmancy ERRHANDLER macros; they're
really designed for real communicator objects. Just use the
back-end function directly. */
if (MPI_SUCCESS != err) {
return ompi_errhandler_invoke(NULL, NULL,
OMPI_ERRHANDLER_TYPE_COMM,
err <
0 ? ompi_errcode_get_mpi_code(err) :
err, FUNC_NAME);
}
OPAL_CR_INIT_LIBRARY();
//Assume we have now the MPI_COMM_WORLD Communicator!!!
void *dvMgmt_dlhandle;
int (*commsBenchmark)(commsInfo*);
char *error;
dvMgmt_dlhandle = dlopen("libdvMgmt.so", RTLD_LAZY);
if (!dvMgmt_dlhandle) {
printf("Details:");
fputs(dlerror(), stderr);
exit(1);
}
commsBenchmark = dlsym(dvMgmt_dlhandle, "commsBenchmark");
commsInfo cmf;
cmf.BW_Mtx = NULL;
char* profileFlag;
int profilingEnabled = 0;
profileFlag = getenv("XSCALA_PROFILING_APP");
if (profileFlag != NULL) {
profilingEnabled = 1;
}
if (profilingEnabled) {
(*commsBenchmark)(&cmf);
}
return MPI_SUCCESS;
}
