ports/openmpi
ports/openmpi
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updating the comm-creating functions to the new flow-chart

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This commit was SVN r1901.
Этот коммит содержится в:
Edgar Gabriel 2004-08-05 16:32:13 +00:00
родитель 2e43e4980e
Коммит eb4cec3566
8 изменённых файлов: 128 добавлений и 431 удалений
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108
src/mpi/c/comm_accept.c
Просмотреть файл

@ -24,13 +24,9 @@ static const char FUNC_NAME[] = "MPI_Comm_accept";
int MPI_Comm_accept(char *port_name, MPI_Info info, int root,
MPI_Comm comm, MPI_Comm *newcomm)
{
int rank, i, rc;
int maxprocs;
uint32_t *rprocs=NULL;
uint32_t lleader=0, rleader=0; /* OOB contact information of our and other root */
ompi_communicator_t *comp, *newcomp;
comp = (ompi_communicator_t *) comm;
int rank, rc;
int send_first=0; /*wrong, we receive first */
ompi_communicator_t *newcomp=MPI_COMM_NULL;
if ( MPI_PARAM_CHECK ) {
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
@ -63,95 +59,19 @@ int MPI_Comm_accept(char *port_name, MPI_Info info, int root,
}
if ( rank == root && MPI_INFO_NULL != info ) {
/* parse info object. no prefedined values for this function in MPI-2 */
/* parse info object. no prefedined values for this function in MPI-2
* so lets ignore it for the moment.
* if ( rank == root && MPI_INFO_NULL != info ) {
* }
*/
/* accept connection from other app */
/*
* Our own port_name is not of interest here, so we pass in NULL.
* The two leader will figure this out later.
*/
/* recv number of procs (maxprocs) of other app */
rprocs = (uint32_t *)malloc (maxprocs * sizeof(uint32_t));
if ( NULL == rprocs ) {
rc = MPI_ERR_INTERN;
goto exit;
}
/* recv list of procs of other app */
/* send number of procs to other app */
/* send list of process to other app */
}
/* bcast maxprocs to all processes in comm and allocate the rprocs array*/
rc = comp->c_coll.coll_bcast ( &maxprocs, 1, MPI_INT, root, comm);
if ( OMPI_SUCCESS != rc ) {
goto exit;
}
if ( rank != root ) {
rprocs = (uint32_t *)malloc (maxprocs * sizeof(uint32_t));
if ( NULL == rprocs ) {
rc = MPI_ERR_INTERN;
goto exit;
}
}
/* bcast list of remote procs to all processes in comm */
rc = comp->c_coll.coll_bcast ( &rprocs, maxprocs, MPI_UNSIGNED, root, comm);
if ( OMPI_SUCCESS != rc ) {
goto exit;
}
/* setup the proc-structures for the new processes, which are not yet known */
for ( i=0; i<maxprocs; i++ ) {
/* if process rprocs[i] not yet in our list, add it. */
}
newcomp = ompi_comm_allocate ( comp->c_local_group->grp_proc_count, maxprocs);
if ( NULL == newcomp ) {
rc = MPI_ERR_INTERN;
goto exit;
}
/* Determine context id. It is identical to f_2_c_handle */
rc = ompi_comm_nextcid ( newcomp, /* new comm */
comp, /* old comm */
NULL, /* bridge comm */
&lleader, /* local leader */
&rleader, /* remote_leader */
OMPI_COMM_CID_INTRA_OOB ); /* mode */
if ( OMPI_SUCCESS != rc ) {
goto exit;
}
/* setup the intercomm-structure using ompi_comm_set (); */
rc = ompi_comm_set ( newcomp, /* new comm */
comp, /* old comm */
comp->c_local_group->grp_proc_count, /* local_size */
comp->c_local_group->grp_proc_pointers, /* local_procs*/
maxprocs, /* remote_size */
rprocs, /* remote_procs */
NULL, /* attrs */
comp->error_handler, /* error handler */
NULL, /* coll module */
NULL /* topo module */
);
if ( MPI_SUCCESS != rc ) {
goto exit;
}
/* PROBLEM: do we have to re-start some low level stuff
to enable the usage of fast communication devices
between the two worlds ? */
exit:
if ( NULL != rprocs ) {
free ( rprocs );
}
if ( MPI_SUCCESS != rc ) {
*newcomm = MPI_COMM_NULL;
return OMPI_ERRHANDLER_INVOKE(comm, rc, FUNC_NAME);
}
rc = ompi_comm_connect_accept (comm, root, NULL, send_first, &newcomp);
*newcomm = newcomp;
return MPI_SUCCESS;
OMPI_ERRHANDLER_RETURN(rc, comm, rc, FUNC_NAME );
}

113
src/mpi/c/comm_connect.c
Просмотреть файл

@ -24,14 +24,11 @@ static const char FUNC_NAME[] = "MPI_Comm_connect";
int MPI_Comm_connect(char *port_name, MPI_Info info, int root,
MPI_Comm comm, MPI_Comm *newcomm)
{
int rank, i, rc;
int maxprocs;
uint32_t *rprocs=NULL;
uint32_t lleader=0; /* OOB contact information of our root */
uint32_t rleader=0; /* OOB contact information of other root */
ompi_communicator_t *comp, *newcomp;
int rank, rc;
int send_first=1; /* yes, we are the active part in this game */
ompi_communicator_t *newcomp=MPI_COMM_NULL;
ompi_process_name_t *port_proc_name;
comp = (ompi_communicator_t *) comm;
if ( MPI_PARAM_CHECK ) {
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
@ -62,96 +59,20 @@ int MPI_Comm_connect(char *port_name, MPI_Info info, int root,
}
}
if ( rank == root && MPI_INFO_NULL != info ) {
/* parse info object. No prefedined values for this function in MPI-2*/
/* parse info object. No prefedined values for this function in MPI-2,
* so lets ignore it for the moment.
*
* if ( rank == root && MPI_INFO_NULL != info ) {
* }
*/
/* connect to other app */
/* send number of procs */
/* send list of procs */
/* receive number of procs (maxprocs) of other app */
rprocs = (uint32_t *)malloc (maxprocs * sizeof(uint32_t));
if ( NULL == rprocs ) {
rc = MPI_ERR_INTERN;
goto exit;
}
/* receive list of process of other app */
}
/* bcast maxprocs to all processes in comm and allocate the rprocs array*/
rc = comp->c_coll.coll_bcast ( &maxprocs, 1, MPI_INT, root, comm);
if ( OMPI_SUCCESS != rc ) {
goto exit;
}
if ( rank != root ) {
rprocs = (uint32_t *)malloc (maxprocs * sizeof(uint32_t));
if ( NULL == rprocs ) {
rc = MPI_ERR_INTERN;
goto exit;
}
}
/* bcast list of remote procs to all processes in comm.
TO BE CHANGED. */
rc = comp->c_coll.coll_bcast ( &rprocs, maxprocs, MPI_UNSIGNED, root, comm);
if ( MPI_SUCCESS != rc ) {
goto exit;
}
/* setup the proc-structures for the new processes, which are not yet known */
for ( i=0; i<maxprocs; i++ ) {
/* if process rprocs[i] not yet in our list, add it. */
}
newcomp = ompi_comm_allocate ( comp->c_local_group->grp_proc_count, maxprocs );
if ( NULL == newcomp ) {
rc = MPI_ERR_INTERN;
goto exit;
}
/* Determine context id. It is identical to f_2_c_handle */
rc = ompi_comm_nextcid ( newcomp, /* new comm */
comp, /* old comm */
NULL, /* bridge comm */
&lleader, /* local leader */
&rleader, /* remote_leader */
OMPI_COMM_CID_INTRA_OOB); /* mode */
if ( MPI_SUCCESS != rc ) {
goto exit;
}
/* setup the intercomm-structure using ompi_comm_set (); */
rc = ompi_comm_set ( newcomp, /* new comm */
comp, /* old comm */
comp->c_local_group->grp_proc_count, /* local_size */
comp->c_local_group->grp_proc_pointers, /* local_procs*/
maxprocs, /* remote_size */
rprocs, /* remote_procs */
NULL, /* attrs */
comp->error_handler, /* error handler */
NULL, /* coll module */
NULL /* topo module */
);
if ( MPI_SUCCESS != rc ) {
goto exit;
}
/* PROBLEM: do we have to re-start some low level stuff
to enable the usage of fast communication devices
between the two worlds ? */
exit:
if ( NULL != rprocs ) {
free ( rprocs );
}
if ( MPI_SUCCESS != rc ) {
*newcomm = MPI_COMM_NULL;
return OMPI_ERRHANDLER_INVOKE(comm, rc, FUNC_NAME);
}
/*
* translate the port_name string into the according process_name_t
* structure. This functionality is currently missing from ns.
*/
rc = ompi_comm_connect_accept (comm, root, port_proc_name, send_first,
&newcomp);
*newcomm = newcomp;
return MPI_SUCCESS;
OMPI_ERRHANDLER_RETURN(rc, comm, rc, FUNC_NAME);
}

20
src/mpi/c/comm_dup.c
Просмотреть файл

@ -52,6 +52,7 @@ int MPI_Comm_dup(MPI_Comm comm, MPI_Comm *newcomm)
mode = OMPI_COMM_CID_INTRA;
}
*newcomm = MPI_COMM_NULL;
newcomp = ompi_comm_allocate (comp->c_local_group->grp_proc_count, rsize );
if ( NULL == newcomp ) {
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_INTERN, FUNC_NAME);
@ -63,9 +64,9 @@ int MPI_Comm_dup(MPI_Comm comm, MPI_Comm *newcomm)
NULL, /* bridge comm */
NULL, /* local leader */
NULL, /* remote_leader */
mode ); /* mode */
mode, /* mode */
-1 ); /* send_first */
if ( MPI_SUCCESS != rc ) {
*newcomm = MPI_COMM_NULL;
return OMPI_ERRHANDLER_INVOKE(comm, rc, FUNC_NAME);
}
@ -77,13 +78,26 @@ int MPI_Comm_dup(MPI_Comm comm, MPI_Comm *newcomm)
rprocs, /* remote_procs */
comp->c_keyhash, /* attrs */
comp->error_handler, /* error handler */
(mca_base_component_t*) comp->c_coll_selected_module, /* coll module */
NULL /* topo module, t.b.d */
);
if ( MPI_SUCCESS != rc) {
return OMPI_ERRHANDLER_INVOKE (comm, rc, FUNC_NAME);
}
/* activate communicator and init coll-module */
rc = ompi_comm_activate (newcomp, /* new communicator */
comp, /* old comm */
NULL, /* bridge comm */
NULL, /* local leader */
NULL, /* remote_leader */
mode, /* mode */
-1, /* send_first */
(mca_base_component_t*) comp->c_coll_selected_module /* coll module */
);
if ( MPI_SUCCESS != rc ) {
return OMPI_ERRHANDLER_INVOKE(comm, rc, FUNC_NAME);
}
*newcomm = newcomp;
return ( MPI_SUCCESS );

56
src/mpi/c/comm_join.c
Просмотреть файл

@ -23,11 +23,9 @@ static const char FUNC_NAME[] = "MPI_Comm_join";
int MPI_Comm_join(int fd, MPI_Comm *intercomm)
{
int rc;
ompi_proc_t *rproc;
uint32_t lleader=0; /* OOB contact information of our root */
ompi_communicator_t *comp, *newcomp;
comp = (ompi_communicator_t *)MPI_COMM_SELF;
int send_first;
ompi_communicator_t *newcomp;
ompi_process_name_t *port_proc_name;
if ( MPI_PARAM_CHECK ) {
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
@ -41,52 +39,10 @@ int MPI_Comm_join(int fd, MPI_Comm *intercomm)
/* sendrecv OOB-name (port-name) through the socket connection.
Need to determine somehow how to avoid a potential deadlock
here. */
/* if proc unknown, set up the proc-structure */
newcomp = ompi_comm_allocate ( comp->c_local_group->grp_proc_count, 1 );
if ( NULL == newcomp ) {
rc = MPI_ERR_INTERN;
goto exit;
}
/* setup comm_cid */
rc = ompi_comm_nextcid ( newcomp, /* new comm */
comp, /* old comm */
NULL, /* bridge comm */
&lleader, /* local leader */
&rproc, /* remote_leader */
OMPI_COMM_CID_INTRA_OOB); /* mode */
if ( OMPI_SUCCESS != rc ) {
goto exit;
}
/* setup the intercomm-structure using ompi_comm_set (); */
rc = ompi_comm_set ( newcomp, /* new comm */
comp, /* old comm */
comp->c_local_group->grp_proc_count, /* local_size */
comp->c_local_group->grp_proc_pointers, /* local_procs*/
1, /* remote_size */
rproc, /* remote_procs */
NULL, /* attrs */
comp->error_handler, /* error handler */
NULL, /* coll module */
NULL /* topo module */
);
if ( MPI_SUCCESS != rc ) {
goto exit;
}
/* PROBLEM: do we have to re-start some low level stuff
to enable the usage of fast communication devices
between the two worlds ? */
exit:
if ( MPI_SUCCESS != rc ) {
*intercomm = MPI_COMM_NULL;
return OMPI_ERRHANDLER_INVOKE (MPI_COMM_SELF, rc, FUNC_NAME);
}
rc = ompi_comm_connect_accept (MPI_COMM_SELF, 0, port_proc_name,
send_first, &newcomp);
*intercomm = newcomp;
return MPI_SUCCESS;
OMPI_ERRHANDLER_RETURN (rc, MPI_COMM_SELF, rc, FUNC_NAME);
}

97
src/mpi/c/comm_spawn.c
Просмотреть файл

@ -27,11 +27,8 @@ int MPI_Comm_spawn(char *command, char **argv, int maxprocs, MPI_Info info,
int *array_of_errcodes)
{
int rank, rc, i;
ompi_communicator_t *comp, *newcomp;
uint32_t *rprocs=NULL;
uint32_t lleader=0, rleader=0; /* OOB contact information of me and the other root */
comp = (ompi_communicator_t *) comm;
int send_first=0; /* we wait to be contacted */
ompi_communicator_t *newcomp;
if ( MPI_PARAM_CHECK ) {
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
@ -77,18 +74,6 @@ int MPI_Comm_spawn(char *command, char **argv, int maxprocs, MPI_Info info,
}
/* bcast maxprocs to all processes in comm and allocate the rprocs array*/
rc = comp->c_coll.coll_bcast ( &maxprocs, 1, MPI_INT, root, comm);
if ( OMPI_SUCCESS != rc ) {
goto exit;
}
rprocs = (uint32_t *)malloc (maxprocs * sizeof(uint32_t));
if ( NULL == rprocs ) {
rc = MPI_ERR_INTERN;
goto exit;
}
if ( rank == root && MPI_INFO_NULL != info ) {
/* parse the info object */
@ -105,80 +90,26 @@ int MPI_Comm_spawn(char *command, char **argv, int maxprocs, MPI_Info info,
/* start processes. if number of processes started != maxprocs
return MPI_ERR_SPAWN.*/
/* publish your name */
/* accept connection from other group.
Root in the new application is rank 0 in their COMM_WORLD ? */
/* publish your name. this should be based on the jobid of the
children, to support the scenario of having several
spawns of non-interleaving communicators working */
/* rc = ompi_comm_namepublish (service_name, port_name ); */
}
rc = ompi_comm_connect_accept (comm, root, NULL, send_first, &newcomp);
if ( rank == root ) {
/* unpublish name */
/* send list of procs to other app */
/* receive list of procs from other app */
}
/* bcast list of remote procs to all processes in comm */
rc = comp->c_coll.coll_bcast ( &rprocs, maxprocs, MPI_UNSIGNED, root, comm);
if ( OMPI_SUCCESS != rc ) {
goto exit;
}
/* setup the proc-structures for the new processes */
for ( i=0; i<maxprocs; i++ ) {
}
newcomp = ompi_comm_allocate ( comp->c_local_group->grp_proc_count, maxprocs );
if ( NULL == newcomp ) {
rc = MPI_ERR_INTERN;
goto exit;
}
/* Determine context id. It is identical to f_2_c_handle */
rc = ompi_comm_nextcid ( newcomp, /* new comm */
comp, /* old comm */
NULL, /* bridge comm */
&lleader, /* local leader */
&rleader, /* remote_leader */
OMPI_COMM_CID_INTRA_OOB ); /* mode */
if ( OMPI_SUCCESS != rc ) {
goto exit;
}
/* setup the intercomm-structure using ompi_comm_set (); */
rc = ompi_comm_set ( newcomp, /* new comm */
comp, /* old comm */
comp->c_local_group->grp_proc_count, /* local_size */
comp->c_local_group->grp_proc_pointers, /* local_procs*/
maxprocs, /* remote_size */
rprocs, /* remote_procs */
NULL, /* attrs */
comp->error_handler, /* error handler */
NULL, /* coll module */
NULL /* topo module */
);
if ( MPI_SUCCESS != rc ) {
goto exit;
}
/* PROBLEM: do we have to re-start some low level stuff
to enable the usage of fast communication devices
between the two worlds ? */
/* set error codes */
if (MPI_ERRCODES_IGNORE != array_of_errcodes) {
for ( i=0; i < maxprocs; i++ ) {
array_of_errcodes[i]=MPI_SUCCESS;
array_of_errcodes[i]=rc;
}
}
exit:
if ( NULL != rprocs) {
free ( rprocs );
}
if ( MPI_SUCCESS != rc ) {
*intercomm = MPI_COMM_NULL;
return OMPI_ERRHANDLER_INVOKE(comm, rc, FUNC_NAME);
}
*intercomm = newcomp;
return MPI_SUCCESS;
OMPI_ERRHANDLER_RETURN (rc, comm, rc, FUNC_NAME);
}

125
src/mpi/c/comm_spawn_multiple.c
Просмотреть файл

@ -28,11 +28,8 @@ int MPI_Comm_spawn_multiple(int count, char **array_of_commands, char ***array_o
{
int i, rc, rank;
int totalnumprocs=0;
uint32_t *rprocs=NULL;
ompi_communicator_t *comp, *newcomp;
uint32_t lleader=0, rleader=0; /* OOB contact information of root and the other root */
comp = (ompi_communicator_t *) comm;
ompi_communicator_t *newcomp;
int send_first=0; /* they are contacting us first */
if ( MPI_PARAM_CHECK ) {
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
@ -102,111 +99,41 @@ int MPI_Comm_spawn_multiple(int count, char **array_of_commands, char ***array_o
if ( rank == root ) {
for ( i=0; i < count; i++ ) {
totalnumprocs += array_of_maxprocs[i];
/* parse the info[i] */
/* check potentially for:
- "host": desired host where to spawn the processes
- "arch": desired architecture
- "wdir": directory, where executable can be found
- "path": list of directories where to look for the executable
- "file": filename, where additional information is provided.
- "soft": see page 92 of MPI-2.
*/
}
}
/* parse the info[i] */
/* bcast totalnumprocs to all processes in comm and allocate the rprocs array*/
rc = comp->c_coll.coll_bcast ( &totalnumprocs, 1, MPI_INT, root, comm);
if ( OMPI_SUCCESS != rc ) {
goto exit;
}
/* check potentially for:
- "host": desired host where to spawn the processes
- "arch": desired architecture
- "wdir": directory, where executable can be found
- "path": list of directories where to look for the executable
- "file": filename, where additional information is provided.
- "soft": see page 92 of MPI-2.
*/
rprocs = (uint32_t *)malloc (totalnumprocs * sizeof(uint32_t));
if ( NULL == rprocs ) {
rc = MPI_ERR_INTERN;
goto exit;
}
if ( rank == root ) {
/* map potentially array_of_argvs == MPI_ARGVS_NULL to a correct value */
/* map potentially array_of_argvs[i] == MPI_ARGV_NULL to a correct value.
not required by the standard. */
/* start processes */
/* publish name */
/* accept connection from other group.
Root in the new application is rank 0 in their COMM_WORLD ? */
/* publish name, which should be based on the jobid of the children */
/* rc = ompi_comm_namepublish (service_name, port_name ); */
}
rc = ompi_comm_connect_accept (comm, root, NULL, send_first, &newcomp);
if ( rank == root ) {
/* unpublish name */
/* send list of procs from other app */
/* receive list of procs from other app */
}
/* bcast list of remote procs to all processes in comm */
rc = comp->c_coll.coll_bcast ( &rprocs, totalnumprocs, MPI_UNSIGNED, root, comm);
if ( OMPI_SUCCESS != rc ) {
goto exit;
}
/* setup the proc-structures for the new processes */
for ( i=0; i < totalnumprocs; i++ ) {
}
newcomp = ompi_comm_allocate ( comp->c_local_group->grp_proc_count, totalnumprocs);
if ( NULL == newcomp ) {
rc = MPI_ERR_INTERN;
goto exit;
}
/* Determine context id. It is identical to f_2_c_handle */
rc = ompi_comm_nextcid ( newcomp, /* new comm */
comp, /* old comm */
NULL, /* bridge comm */
&lleader, /* local leader */
&rleader, /* remote_leader */
OMPI_COMM_CID_INTRA_OOB ); /* mode */
if ( OMPI_SUCCESS != rc ) {
goto exit;
}
/* setup the intercomm-structure using ompi_comm_set (); */
rc = ompi_comm_set ( newcomp, /* new comm */
comp, /* old comm */
comp->c_local_group->grp_proc_count, /* local_size */
comp->c_local_group->grp_proc_pointers, /* local_procs*/
totalnumprocs, /* remote_size */
rprocs, /* remote_procs */
NULL, /* attrs */
comp->error_handler, /* error handler */
NULL, /* coll module */
NULL /* topo module */
);
if ( MPI_SUCCESS != rc ) {
goto exit;
}
/* PROBLEM: do we have to re-start some low level stuff
to enable the usage of fast communication devices
between the two worlds ? */
/* set array of errorcodes */
if (MPI_ERRCODES_IGNORE != array_of_errcodes) {
for ( i=0; i < totalnumprocs; i++ ) {
array_of_errcodes[i]=MPI_SUCCESS;
}
}
if (MPI_ERRCODES_IGNORE != array_of_errcodes) {
for ( i=0; i < totalnumprocs; i++ ) {
array_of_errcodes[i]=rc;
}
}
exit:
if ( NULL != rprocs) {
free ( rprocs );
}
if ( MPI_SUCCESS != rc ) {
*intercomm = MPI_COMM_NULL;
return OMPI_ERRHANDLER_INVOKE(comm, rc, FUNC_NAME);
}
return MPI_SUCCESS;
*intercomm = newcomp;
OMPI_ERRHANDLER_RETURN (rc, comm, rc, FUNC_NAME);
}

19
src/mpi/c/intercomm_create.c
Просмотреть файл

@ -122,7 +122,9 @@ int MPI_Intercomm_create(MPI_Comm local_comm, int local_leader,
bridge_comm, /* bridge comm */
&lleader, /* local leader */
&rleader, /* remote_leader */
OMPI_COMM_CID_INTRA_BRIDGE); /* mode */
OMPI_COMM_CID_INTRA_BRIDGE, /* mode */
-1 ); /* send_first */
if ( MPI_SUCCESS != rc ) {
goto err_exit;
}
@ -135,13 +137,26 @@ int MPI_Intercomm_create(MPI_Comm local_comm, int local_leader,
rprocs, /* remote_procs */
NULL, /* attrs */
local_comm->error_handler, /* error handler*/
NULL, /* coll module */
NULL /* topo mpodule */
);
if ( MPI_SUCCESS != rc ) {
goto err_exit;
}
/* activate comm and init coll-module */
rc = ompi_comm_activate ( newcomp, /* new comm */
local_comm, /* old comm */
bridge_comm, /* bridge comm */
&lleader, /* local leader */
&rleader, /* remote_leader */
OMPI_COMM_CID_INTRA_BRIDGE, /* mode */
-1, /* send_first */
NULL ); /* coll component */
if ( MPI_SUCCESS != rc ) {
goto err_exit;
}
err_exit:
if ( NULL == rprocs ) {
free ( rprocs );

17
src/mpi/c/intercomm_merge.c
Просмотреть файл

@ -88,7 +88,8 @@ int MPI_Intercomm_merge(MPI_Comm intercomm, int high,
NULL, /* bridge comm */
NULL, /* local leader */
NULL, /* remote_leader */
OMPI_COMM_CID_INTER); /* mode */
OMPI_COMM_CID_INTER, /* mode */
-1 ); /* send_first */
if ( OMPI_SUCCESS != rc ) {
goto exit;
}
@ -101,13 +102,25 @@ int MPI_Intercomm_merge(MPI_Comm intercomm, int high,
NULL, /* remote_procs */
NULL, /* attrs */
intercomm->error_handler, /* error handler*/
NULL, /* coll module */
NULL /* topo mpodule */
);
if ( MPI_SUCCESS != rc ) {
goto exit;
}
/* activate communicator and init coll-module */
rc = ompi_comm_activate ( newcomp, /* new comm */
intercomm, /* old comm */
NULL, /* bridge comm */
NULL, /* local leader */
NULL, /* remote_leader */
OMPI_COMM_CID_INTER, /* mode */
-1, /* send_first */
NULL ); /* coll module */
if ( OMPI_SUCCESS != rc ) {
goto exit;
}
exit:
if ( NULL != procs ) {