void MPIR_Comm_get_errhandler_impl(MPIR_Comm * comm_ptr, MPIR_Errhandler ** errhandler_ptr)
{
MPID_THREAD_CS_ENTER(POBJ, MPIR_THREAD_POBJ_COMM_MUTEX(comm_ptr));
*errhandler_ptr = comm_ptr->errhandler;
if (comm_ptr->errhandler)
MPIR_Errhandler_add_ref(comm_ptr->errhandler);
MPID_THREAD_CS_EXIT(POBJ, MPIR_THREAD_POBJ_COMM_MUTEX(comm_ptr));
return;
}
int MPIR_Comm_copy_data(MPID_Comm * comm_ptr, MPID_Comm ** outcomm_ptr)
{
int mpi_errno = MPI_SUCCESS;
MPID_Comm *newcomm_ptr = NULL;
MPID_MPI_STATE_DECL(MPID_STATE_MPIR_COMM_COPY_DATA);
MPID_MPI_FUNC_ENTER(MPID_STATE_MPIR_COMM_COPY_DATA);
mpi_errno = MPIR_Comm_create(&newcomm_ptr);
if (mpi_errno)
goto fn_fail;
/* use a large garbage value to ensure errors are caught more easily */
newcomm_ptr->context_id = 32767;
newcomm_ptr->recvcontext_id = 32767;
/* Save the kind of the communicator */
newcomm_ptr->comm_kind = comm_ptr->comm_kind;
newcomm_ptr->local_comm = 0;
if (comm_ptr->comm_kind == MPID_INTRACOMM)
MPIR_Comm_map_dup(newcomm_ptr, comm_ptr, MPIR_COMM_MAP_DIR_L2L);
else
MPIR_Comm_map_dup(newcomm_ptr, comm_ptr, MPIR_COMM_MAP_DIR_R2R);
/* If it is an intercomm, duplicate the network address mapping */
if (comm_ptr->comm_kind == MPID_INTERCOMM) {
MPIR_Comm_map_dup(newcomm_ptr, comm_ptr, MPIR_COMM_MAP_DIR_L2L);
}
/* Set the sizes and ranks */
newcomm_ptr->rank = comm_ptr->rank;
newcomm_ptr->local_size = comm_ptr->local_size;
newcomm_ptr->remote_size = comm_ptr->remote_size;
newcomm_ptr->is_low_group = comm_ptr->is_low_group; /* only relevant for intercomms */
/* Inherit the error handler (if any) */
MPID_THREAD_CS_ENTER(POBJ, MPIR_THREAD_POBJ_COMM_MUTEX(comm_ptr));
newcomm_ptr->errhandler = comm_ptr->errhandler;
if (comm_ptr->errhandler) {
MPIR_Errhandler_add_ref(comm_ptr->errhandler);
}
MPID_THREAD_CS_EXIT(POBJ, MPIR_THREAD_POBJ_COMM_MUTEX(comm_ptr));
/* FIXME do we want to copy coll_fns here? */
/* Start with no attributes on this communicator */
newcomm_ptr->attributes = 0;
*outcomm_ptr = newcomm_ptr;
fn_fail:
fn_exit:
MPID_MPI_FUNC_EXIT(MPID_STATE_MPIR_COMM_COPY_DATA);
return mpi_errno;
}
/*@
MPI_Win_get_errhandler - Get the error handler for the MPI RMA window
Input Parameters:
. win - window (handle)
Output Parameters:
. errhandler - error handler currently associated with window (handle)
.N ThreadSafe
.N Fortran
.N Errors
.N MPI_SUCCESS
.N MPI_ERR_WIN
.N MPI_ERR_OTHER
@*/
int MPI_Win_get_errhandler(MPI_Win win, MPI_Errhandler * errhandler)
{
int mpi_errno = MPI_SUCCESS;
MPIR_Win *win_ptr = NULL;
MPIR_FUNC_TERSE_STATE_DECL(MPID_STATE_MPI_WIN_GET_ERRHANDLER);
MPIR_ERRTEST_INITIALIZED_ORDIE();
MPID_THREAD_CS_ENTER(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
MPIR_FUNC_TERSE_ENTER(MPID_STATE_MPI_WIN_GET_ERRHANDLER);
/* Validate parameters, especially handles needing to be converted */
#ifdef HAVE_ERROR_CHECKING
{
MPID_BEGIN_ERROR_CHECKS;
{
MPIR_ERRTEST_WIN(win, mpi_errno);
}
MPID_END_ERROR_CHECKS;
}
#endif
/* Convert MPI object handles to object pointers */
MPIR_Win_get_ptr(win, win_ptr);
/* Validate parameters and objects (post conversion) */
#ifdef HAVE_ERROR_CHECKING
{
MPID_BEGIN_ERROR_CHECKS;
{
MPIR_ERRTEST_ARGNULL(errhandler, "errhandler", mpi_errno);
/* Validate win_ptr */
MPIR_Win_valid_ptr(win_ptr, mpi_errno);
/* If win_ptr is not valid, it will be reset to null */
if (mpi_errno)
goto fn_fail;
}
MPID_END_ERROR_CHECKS;
}
#endif /* HAVE_ERROR_CHECKING */
/* ... body of routine ... */
MPID_THREAD_CS_ENTER(POBJ, MPIR_THREAD_POBJ_WIN_MUTEX(win_ptr));
if (win_ptr->errhandler) {
*errhandler = win_ptr->errhandler->handle;
MPIR_Errhandler_add_ref(win_ptr->errhandler);
} else {
/* Use the default */
*errhandler = MPI_ERRORS_ARE_FATAL;
}
MPID_THREAD_CS_EXIT(POBJ, MPIR_THREAD_POBJ_WIN_MUTEX(win_ptr));
/* ... end of body of routine ... */
#ifdef HAVE_ERROR_CHECKING
fn_exit:
#endif
MPIR_FUNC_TERSE_EXIT(MPID_STATE_MPI_WIN_GET_ERRHANDLER);
MPID_THREAD_CS_EXIT(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
return mpi_errno;
/* --BEGIN ERROR HANDLING-- */
#ifdef HAVE_ERROR_CHECKING
fn_fail:
{
mpi_errno =
MPIR_Err_create_code(mpi_errno, MPIR_ERR_RECOVERABLE, FCNAME, __LINE__, MPI_ERR_OTHER,
"**mpi_win_get_errhandler", "**mpi_win_get_errhandler %W %p", win,
errhandler);
}
mpi_errno = MPIR_Err_return_win(win_ptr, FCNAME, mpi_errno);
goto fn_exit;
#endif
/* --END ERROR HANDLING-- */
}
/*@
MPI_File_set_errhandler - Set the error handler for an MPI file
Input Parameters:
+ file - MPI file (handle)
- errhandler - new error handler for file (handle)
.N ThreadSafeNoUpdate
.N Fortran
.N Errors
.N MPI_SUCCESS
@*/
int MPI_File_set_errhandler(MPI_File file, MPI_Errhandler errhandler)
{
#ifdef HAVE_ERROR_CHECKING
static const char FCNAME[] = "MPI_File_set_errhandler";
#endif
int mpi_errno = MPI_SUCCESS;
#ifdef MPI_MODE_RDONLY
int in_use;
MPIR_Errhandler *errhan_ptr = NULL, *old_errhandler_ptr;
MPI_Errhandler old_errhandler;
#endif
MPIR_FUNC_TERSE_STATE_DECL(MPID_STATE_MPI_FILE_SET_ERRHANDLER);
MPIR_ERRTEST_INITIALIZED_ORDIE();
MPIR_FUNC_TERSE_ENTER(MPID_STATE_MPI_FILE_SET_ERRHANDLER);
#ifdef MPI_MODE_RDONLY
/* Validate parameters, especially handles needing to be converted */
# ifdef HAVE_ERROR_CHECKING
{
MPID_BEGIN_ERROR_CHECKS;
{
/* FIXME: check for a valid file handle (fh) before converting to
a pointer */
MPIR_ERRTEST_ERRHANDLER(errhandler, mpi_errno);
}
MPID_END_ERROR_CHECKS;
}
# endif /* HAVE_ERROR_CHECKING */
MPIR_Errhandler_get_ptr( errhandler, errhan_ptr );
/* Validate parameters and objects (post conversion) */
# ifdef HAVE_ERROR_CHECKING
{
MPID_BEGIN_ERROR_CHECKS;
{
if (HANDLE_GET_KIND(errhandler) != HANDLE_KIND_BUILTIN) {
MPIR_Errhandler_valid_ptr( errhan_ptr,mpi_errno );
/* Also check for a valid errhandler kind */
if (!mpi_errno) {
if (errhan_ptr->kind != MPIR_FILE) {
mpi_errno = MPIR_Err_create_code(
MPI_SUCCESS, MPIR_ERR_RECOVERABLE, FCNAME, __LINE__, MPI_ERR_ARG, "**errhandnotfile", NULL );
}
}
}
if (mpi_errno) goto fn_fail;
}
MPID_END_ERROR_CHECKS;
}
# endif /* HAVE_ERROR_CHECKING */
/* ... body of routine ... */
MPIR_ROMIO_Get_file_errhand( file, &old_errhandler );
if (!old_errhandler) {
/* MPI_File objects default to the errhandler set on MPI_FILE_NULL
* at file open time, or MPI_ERRORS_RETURN if no errhandler is set
* on MPI_FILE_NULL. (MPI-2.2, sec 13.7) */
MPIR_Errhandler_get_ptr( MPI_ERRORS_RETURN, old_errhandler_ptr );
}
else {
MPIR_Errhandler_get_ptr( old_errhandler, old_errhandler_ptr );
}
if (old_errhandler_ptr) {
MPIR_Errhandler_release_ref(old_errhandler_ptr,&in_use);
if (!in_use) {
MPIR_Errhandler_free( old_errhandler_ptr );
}
}
MPIR_Errhandler_add_ref(errhan_ptr);
MPIR_ROMIO_Set_file_errhand( file, errhandler );
#else
/* Dummy in case ROMIO is not defined */
mpi_errno = MPI_ERR_INTERN;
#ifdef HAVE_ERROR_CHECKING
if (0) goto fn_fail; /* quiet compiler warning about unused label */
#endif
#endif
/* ... end of body of routine ... */
#ifdef HAVE_ERROR_CHECKING
fn_exit:
#endif
MPIR_FUNC_TERSE_EXIT(MPID_STATE_MPI_FILE_SET_ERRHANDLER);
return mpi_errno;
/* --BEGIN ERROR HANDLING-- */
# ifdef HAVE_ERROR_CHECKING
fn_fail:
{
mpi_errno = MPIR_Err_create_code(
mpi_errno, MPIR_ERR_RECOVERABLE, FCNAME, __LINE__, MPI_ERR_OTHER,
"**mpi_file_set_errhandler",
"**mpi_file_set_errhandler %F %E", file, errhandler);
}
/* FIXME: Is this obsolete now? */
#ifdef MPI_MODE_RDONLY
mpi_errno = MPIO_Err_return_file( file, mpi_errno );
#endif
goto fn_exit;
# endif
/* --END ERROR HANDLING-- */
}
int MPIR_Comm_copy(MPID_Comm * comm_ptr, int size, MPID_Comm ** outcomm_ptr)
{
int mpi_errno = MPI_SUCCESS;
MPIU_Context_id_t new_context_id, new_recvcontext_id;
MPID_Comm *newcomm_ptr = NULL;
MPIR_Comm_map_t *map;
MPID_MPI_STATE_DECL(MPID_STATE_MPIR_COMM_COPY);
MPID_MPI_FUNC_ENTER(MPID_STATE_MPIR_COMM_COPY);
/* Get a new context first. We need this to be collective over the
* input communicator */
/* If there is a context id cache in oldcomm, use it here. Otherwise,
* use the appropriate algorithm to get a new context id. Be careful
* of intercomms here */
if (comm_ptr->comm_kind == MPID_INTERCOMM) {
mpi_errno = MPIR_Get_intercomm_contextid(comm_ptr, &new_context_id, &new_recvcontext_id);
if (mpi_errno)
MPIR_ERR_POP(mpi_errno);
}
else {
mpi_errno = MPIR_Get_contextid_sparse(comm_ptr, &new_context_id, FALSE);
new_recvcontext_id = new_context_id;
if (mpi_errno)
MPIR_ERR_POP(mpi_errno);
MPIU_Assert(new_context_id != 0);
}
/* This is the local size, not the remote size, in the case of
* an intercomm */
if (comm_ptr->rank >= size) {
*outcomm_ptr = 0;
/* always free the recvcontext ID, never the "send" ID */
MPIR_Free_contextid(new_recvcontext_id);
goto fn_exit;
}
/* We're left with the processes that will have a non-null communicator.
* Create the object, initialize the data, and return the result */
mpi_errno = MPIR_Comm_create(&newcomm_ptr);
if (mpi_errno)
goto fn_fail;
newcomm_ptr->context_id = new_context_id;
newcomm_ptr->recvcontext_id = new_recvcontext_id;
/* Save the kind of the communicator */
newcomm_ptr->comm_kind = comm_ptr->comm_kind;
newcomm_ptr->local_comm = 0;
/* There are two cases here - size is the same as the old communicator,
* or it is smaller. If the size is the same, we can just add a reference.
* Otherwise, we need to create a new network address mapping. Note that this is the
* test that matches the test on rank above. */
if (size == comm_ptr->local_size) {
/* Duplicate the network address mapping */
if (comm_ptr->comm_kind == MPID_INTRACOMM)
MPIR_Comm_map_dup(newcomm_ptr, comm_ptr, MPIR_COMM_MAP_DIR_L2L);
else
MPIR_Comm_map_dup(newcomm_ptr, comm_ptr, MPIR_COMM_MAP_DIR_R2R);
}
else {
int i;
if (comm_ptr->comm_kind == MPID_INTRACOMM)
MPIR_Comm_map_irregular(newcomm_ptr, comm_ptr, NULL, size, MPIR_COMM_MAP_DIR_L2L, &map);
else
MPIR_Comm_map_irregular(newcomm_ptr, comm_ptr, NULL, size, MPIR_COMM_MAP_DIR_R2R, &map);
for (i = 0; i < size; i++) {
/* For rank i in the new communicator, find the corresponding
* rank in the input communicator */
map->src_mapping[i] = i;
}
}
/* If it is an intercomm, duplicate the local network address references */
if (comm_ptr->comm_kind == MPID_INTERCOMM) {
MPIR_Comm_map_dup(newcomm_ptr, comm_ptr, MPIR_COMM_MAP_DIR_L2L);
}
/* Set the sizes and ranks */
newcomm_ptr->rank = comm_ptr->rank;
if (comm_ptr->comm_kind == MPID_INTERCOMM) {
newcomm_ptr->local_size = comm_ptr->local_size;
newcomm_ptr->remote_size = comm_ptr->remote_size;
newcomm_ptr->is_low_group = comm_ptr->is_low_group;
}
else {
newcomm_ptr->local_size = size;
newcomm_ptr->remote_size = size;
}
/* Inherit the error handler (if any) */
MPID_THREAD_CS_ENTER(POBJ, MPIR_THREAD_POBJ_COMM_MUTEX(comm_ptr));
newcomm_ptr->errhandler = comm_ptr->errhandler;
if (comm_ptr->errhandler) {
MPIR_Errhandler_add_ref(comm_ptr->errhandler);
}
MPID_THREAD_CS_EXIT(POBJ, MPIR_THREAD_POBJ_COMM_MUTEX(comm_ptr));
/* FIXME do we want to copy coll_fns here? */
mpi_errno = MPIR_Comm_commit(newcomm_ptr);
if (mpi_errno)
MPIR_ERR_POP(mpi_errno);
/* Start with no attributes on this communicator */
newcomm_ptr->attributes = 0;
/* Copy over the info hints from the original communicator. */
mpi_errno = MPIR_Info_dup_impl(comm_ptr->info, &(newcomm_ptr->info));
if (mpi_errno)
MPIR_ERR_POP(mpi_errno);
mpi_errno = MPIR_Comm_apply_hints(newcomm_ptr, newcomm_ptr->info);
if (mpi_errno)
MPIR_ERR_POP(mpi_errno);
*outcomm_ptr = newcomm_ptr;
fn_fail:
fn_exit:
MPID_MPI_FUNC_EXIT(MPID_STATE_MPIR_COMM_COPY);
return mpi_errno;
}
/*@
MPI_Win_set_errhandler - Set window error handler
Input Parameters:
+ win - window (handle)
- errhandler - new error handler for window (handle)
.N ThreadSafeNoUpdate
.N Fortran
.N Errors
.N MPI_SUCCESS
.N MPI_ERR_WIN
@*/
int MPI_Win_set_errhandler(MPI_Win win, MPI_Errhandler errhandler)
{
#ifdef HAVE_ERROR_CHECKING
static const char FCNAME[] = "MPI_Win_set_errhandler";
#endif
int mpi_errno = MPI_SUCCESS;
MPID_Win *win_ptr = NULL;
int in_use;
MPID_Errhandler *errhan_ptr = NULL;
MPID_MPI_STATE_DECL(MPID_STATE_MPI_WIN_SET_ERRHANDLER);
MPIR_ERRTEST_INITIALIZED_ORDIE();
MPID_MPI_FUNC_ENTER(MPID_STATE_MPI_WIN_SET_ERRHANDLER);
/* Validate parameters, especially handles needing to be converted */
# ifdef HAVE_ERROR_CHECKING
{
MPID_BEGIN_ERROR_CHECKS;
{
MPIR_ERRTEST_WIN(win, mpi_errno);
MPIR_ERRTEST_ERRHANDLER(errhandler, mpi_errno);
}
MPID_END_ERROR_CHECKS;
}
# endif
/* Convert MPI object handles to object pointers */
MPID_Win_get_ptr( win, win_ptr );
MPID_Errhandler_get_ptr( errhandler, errhan_ptr );
/* Validate parameters and objects (post conversion) */
# ifdef HAVE_ERROR_CHECKING
{
MPID_BEGIN_ERROR_CHECKS;
{
/* Validate win_ptr */
MPID_Win_valid_ptr( win_ptr, mpi_errno );
/* If win_ptr is not value, it will be reset to null */
if (HANDLE_GET_KIND(errhandler) != HANDLE_KIND_BUILTIN) {
MPID_Errhandler_valid_ptr( errhan_ptr,mpi_errno );
/* Also check for a valid errhandler kind */
if (!mpi_errno) {
if (errhan_ptr->kind != MPID_WIN) {
mpi_errno = MPIR_Err_create_code(
MPI_SUCCESS, MPIR_ERR_RECOVERABLE, FCNAME,
__LINE__, MPI_ERR_ARG, "**errhandnotwin", NULL );
}
}
}
if (mpi_errno) goto fn_fail;
}
MPID_END_ERROR_CHECKS;
}
# endif /* HAVE_ERROR_CHECKING */
/* ... body of routine ... */
MPID_THREAD_CS_ENTER(POBJ, MPIR_THREAD_POBJ_WIN_MUTEX(win_ptr));
if (win_ptr->errhandler != NULL) {
MPIR_Errhandler_release_ref(win_ptr->errhandler,&in_use);
if (!in_use) {
MPID_Errhandler_free( win_ptr->errhandler );
}
}
MPIR_Errhandler_add_ref(errhan_ptr);
win_ptr->errhandler = errhan_ptr;
MPID_THREAD_CS_EXIT(POBJ, MPIR_THREAD_POBJ_WIN_MUTEX(win_ptr));
/* ... end of body of routine ... */
#ifdef HAVE_ERROR_CHECKING
fn_exit:
#endif
MPID_MPI_FUNC_EXIT(MPID_STATE_MPI_WIN_SET_ERRHANDLER);
return mpi_errno;
/* --BEGIN ERROR HANDLING-- */
# ifdef HAVE_ERROR_CHECKING
fn_fail:
{
mpi_errno = MPIR_Err_create_code(
mpi_errno, MPIR_ERR_RECOVERABLE, FCNAME, __LINE__, MPI_ERR_OTHER,
"**mpi_win_set_errhandler",
"**mpi_win_set_errhandler %W %E", win, errhandler);
}
mpi_errno = MPIR_Err_return_win(win_ptr, FCNAME, mpi_errno);
goto fn_exit;
# endif
/* --END ERROR HANDLING-- */
}
int MPIR_Intercomm_create_impl(MPIR_Comm *local_comm_ptr, int local_leader,
MPIR_Comm *peer_comm_ptr, int remote_leader, int tag,
MPIR_Comm **new_intercomm_ptr)
{
int mpi_errno = MPI_SUCCESS;
MPIR_Context_id_t final_context_id, recvcontext_id;
int remote_size = 0, *remote_lpids = NULL;
int comm_info[3];
int is_low_group = 0;
int cts_tag;
MPIR_Errflag_t errflag = MPIR_ERR_NONE;
MPIR_FUNC_TERSE_STATE_DECL(MPID_STATE_MPIR_COMM_KIND__INTERCOMM_CREATE_IMPL);
MPIR_FUNC_TERSE_ENTER(MPID_STATE_MPIR_COMM_KIND__INTERCOMM_CREATE_IMPL);
/* Shift tag into the tagged coll space (tag provided by the user
is ignored as of MPI 3.0) */
cts_tag = MPIR_COMM_KIND__INTERCOMM_CREATE_TAG | MPIR_Process.tagged_coll_mask;
mpi_errno = MPID_Intercomm_exchange_map(local_comm_ptr, local_leader,
peer_comm_ptr, remote_leader,
&remote_size, &remote_lpids,
&is_low_group);
if (mpi_errno) MPIR_ERR_POP(mpi_errno);
/*
* Create the contexts. Each group will have a context for sending
* to the other group. All processes must be involved. Because
* we know that the local and remote groups are disjoint, this
* step will complete
*/
MPL_DBG_MSG_FMT(MPIR_DBG_COMM,VERBOSE, (MPL_DBG_FDEST,"About to get contextid (local_size=%d) on rank %d",
local_comm_ptr->local_size, local_comm_ptr->rank ));
/* In the multi-threaded case, MPIR_Get_contextid_sparse assumes that the
calling routine already holds the single criticial section */
/* TODO: Make sure this is tag-safe */
mpi_errno = MPIR_Get_contextid_sparse( local_comm_ptr, &recvcontext_id, FALSE );
if (mpi_errno) MPIR_ERR_POP(mpi_errno);
MPIR_Assert(recvcontext_id != 0);
MPL_DBG_MSG_FMT(MPIR_DBG_COMM,VERBOSE, (MPL_DBG_FDEST,"Got contextid=%d", recvcontext_id));
/* Leaders can now swap context ids and then broadcast the value
to the local group of processes */
if (local_comm_ptr->rank == local_leader) {
MPIR_Context_id_t remote_context_id;
mpi_errno = MPIC_Sendrecv( &recvcontext_id, 1, MPIR_CONTEXT_ID_T_DATATYPE, remote_leader, cts_tag,
&remote_context_id, 1, MPIR_CONTEXT_ID_T_DATATYPE, remote_leader, cts_tag,
peer_comm_ptr, MPI_STATUS_IGNORE, &errflag );
if (mpi_errno) MPIR_ERR_POP(mpi_errno);
final_context_id = remote_context_id;
/* Now, send all of our local processes the remote_lpids,
along with the final context id */
comm_info[0] = final_context_id;
MPL_DBG_MSG(MPIR_DBG_COMM,VERBOSE,"About to bcast on local_comm");
mpi_errno = MPID_Bcast( comm_info, 1, MPI_INT, local_leader, local_comm_ptr, &errflag );
if (mpi_errno) MPIR_ERR_POP(mpi_errno);
MPIR_ERR_CHKANDJUMP(errflag, mpi_errno, MPI_ERR_OTHER, "**coll_fail");
MPL_DBG_MSG_D(MPIR_DBG_COMM,VERBOSE,"end of bcast on local_comm of size %d",
local_comm_ptr->local_size );
}
else
{
/* we're the other processes */
MPL_DBG_MSG(MPIR_DBG_COMM,VERBOSE,"About to receive bcast on local_comm");
mpi_errno = MPID_Bcast( comm_info, 1, MPI_INT, local_leader, local_comm_ptr, &errflag );
if (mpi_errno) MPIR_ERR_POP(mpi_errno);
MPIR_ERR_CHKANDJUMP(errflag, mpi_errno, MPI_ERR_OTHER, "**coll_fail");
/* Extract the context and group sign informatin */
final_context_id = comm_info[0];
}
/* At last, we now have the information that we need to build the
intercommunicator */
/* All processes in the local_comm now build the communicator */
mpi_errno = MPIR_Comm_create( new_intercomm_ptr );
if (mpi_errno) goto fn_fail;
(*new_intercomm_ptr)->context_id = final_context_id;
(*new_intercomm_ptr)->recvcontext_id = recvcontext_id;
(*new_intercomm_ptr)->remote_size = remote_size;
(*new_intercomm_ptr)->local_size = local_comm_ptr->local_size;
(*new_intercomm_ptr)->pof2 = local_comm_ptr->pof2;
(*new_intercomm_ptr)->rank = local_comm_ptr->rank;
(*new_intercomm_ptr)->comm_kind = MPIR_COMM_KIND__INTERCOMM;
(*new_intercomm_ptr)->local_comm = 0;
(*new_intercomm_ptr)->is_low_group = is_low_group;
mpi_errno = MPID_Create_intercomm_from_lpids( *new_intercomm_ptr, remote_size, remote_lpids );
if (mpi_errno) goto fn_fail;
MPIR_Comm_map_dup(*new_intercomm_ptr, local_comm_ptr, MPIR_COMM_MAP_DIR__L2L);
/* Inherit the error handler (if any) */
MPID_THREAD_CS_ENTER(POBJ, MPIR_THREAD_POBJ_COMM_MUTEX(local_comm_ptr));
(*new_intercomm_ptr)->errhandler = local_comm_ptr->errhandler;
if (local_comm_ptr->errhandler) {
MPIR_Errhandler_add_ref( local_comm_ptr->errhandler );
}
MPID_THREAD_CS_EXIT(POBJ, MPIR_THREAD_POBJ_COMM_MUTEX(local_comm_ptr));
mpi_errno = MPIR_Comm_commit(*new_intercomm_ptr);
if (mpi_errno) MPIR_ERR_POP(mpi_errno);
fn_exit:
if (remote_lpids) {
MPL_free(remote_lpids);
remote_lpids = NULL;
}
MPIR_FUNC_TERSE_EXIT(MPID_STATE_MPIR_COMM_KIND__INTERCOMM_CREATE_IMPL);
return mpi_errno;
fn_fail:
goto fn_exit;
}
/*@
MPI_File_get_errhandler - Get the error handler attached to a file
Input Parameters:
. file - MPI file (handle)
Output Parameters:
. errhandler - handler currently associated with file (handle)
.N ThreadSafeNoUpdate
.N Fortran
.N Errors
.N MPI_SUCCESS
@*/
int MPI_File_get_errhandler(MPI_File file, MPI_Errhandler *errhandler)
{
#ifdef HAVE_ERROR_CHECKING
static const char FCNAME[] = "MPI_File_get_errhandler";
#endif
int mpi_errno = MPI_SUCCESS;
#ifdef MPI_MODE_RDONLY
MPI_Errhandler eh;
MPID_Errhandler *e;
#endif
MPID_MPI_STATE_DECL(MPID_STATE_MPI_FILE_GET_ERRHANDLER);
MPIR_ERRTEST_INITIALIZED_ORDIE();
MPIU_THREAD_CS_ENTER(ALLFUNC,);
MPID_MPI_FUNC_ENTER(MPID_STATE_MPI_FILE_GET_ERRHANDLER);
#ifdef MPI_MODE_RDONLY
/* Validate parameters, especially handles needing to be converted */
/* FIXME: check for a valid file handle (fh) before converting to a pointer */
/* Validate parameters and objects (post conversion) */
# ifdef HAVE_ERROR_CHECKING
{
MPID_BEGIN_ERROR_CHECKS;
{
MPIR_ERRTEST_ARGNULL(errhandler,"errhandler",mpi_errno);
}
MPID_END_ERROR_CHECKS;
}
# endif /* HAVE_ERROR_CHECKING */
/* ... body of routine ... */
MPIR_ROMIO_Get_file_errhand( file, &eh );
if (!eh) {
MPID_Errhandler_get_ptr( MPI_ERRORS_RETURN, e );
}
else {
MPID_Errhandler_get_ptr( eh, e );
}
MPIR_Errhandler_add_ref( e );
*errhandler = e->handle;
#else
/* Dummy in case ROMIO is not defined */
mpi_errno = MPI_ERR_INTERN;
#ifdef HAVE_ERROR_CHECKING
if (0) goto fn_fail; /* quiet compiler warning about unused label */
#endif
#endif
/* ... end of body of routine ... */
#ifdef HAVE_ERROR_CHECKING
fn_exit:
#endif
MPID_MPI_FUNC_EXIT(MPID_STATE_MPI_FILE_GET_ERRHANDLER);
MPIU_THREAD_CS_EXIT(ALLFUNC,);
return mpi_errno;
/* --BEGIN ERROR HANDLING-- */
# ifdef HAVE_ERROR_CHECKING
fn_fail:
{
mpi_errno = MPIR_Err_create_code(
mpi_errno, MPIR_ERR_RECOVERABLE, FCNAME, __LINE__, MPI_ERR_OTHER,
"**mpi_file_get_errhandler",
"**mpi_file_get_errhandler %F %p", file, errhandler);
}
/* FIXME: Is this obsolete now? */
#ifdef MPI_MODE_RDONLY
mpi_errno = MPIO_Err_return_file( file, mpi_errno );
#endif
goto fn_exit;
# endif
/* --END ERROR HANDLING-- */
}
