void Zoltan_HG_HGraph_Print(
ZZ *zz, /* the Zoltan data structure */
ZHG *zoltan_hg,
HGraph *hg,
Partition parts,
FILE *fp
)
{
/* Printing routine. Can be used to print a Zoltan_HGraph or just an HGraph.
* Set zoltan_hg to NULL if want to print only an HGraph.
* Lots of output; synchronized across processors, so is a bottleneck.
*/
int i;
int p;
int num_gid = zz->Num_GID;
int num_lid = zz->Num_LID;
char *yo = "Zoltan_HG_HGraph_Print";
if (zoltan_hg != NULL && hg != &zoltan_hg->HG) {
ZOLTAN_PRINT_WARN(zz->Proc, yo, "Input hg != Zoltan HG");
return;
}
#if 0
Zoltan_Print_Sync_Start (zz->Communicator, 1);
#else
for (p=0; p < zz->Num_Proc; p++){
if (p == zz->Proc){
#endif
/* Print Vertex Info */
fprintf (fp, "%s Proc %d\n", yo, zz->Proc);
fprintf (fp, "Vertices (GID, LID, index)\n");
for (i = 0; i < zoltan_hg->nObj; i++) {
fprintf(fp, "(");
ZOLTAN_PRINT_GID(zz, &zoltan_hg->objGID[i * num_gid]);
fprintf(fp, ", ");
ZOLTAN_PRINT_LID(zz, &zoltan_hg->objLID[i * num_lid]);
fprintf(fp, ", %d)\n", i);
}
Zoltan_HG_Print(zz, hg, parts, fp, "Build");
fflush(fp);
#if 0
Zoltan_Print_Sync_End(zz->Communicator, 1);
#else
}
MPI_Barrier(zz->Communicator);
MPI_Barrier(zz->Communicator);
MPI_Barrier(zz->Communicator);
}
MPI_Barrier(zz->Communicator);
MPI_Barrier(zz->Communicator);
MPI_Barrier(zz->Communicator);
#endif
}
int Zoltan_Migrate(
ZZ *zz, /* Zoltan structure. */
int num_import, /* Number of non-local objects assigned to the
processor in the new decomposition. */
ZOLTAN_ID_PTR import_global_ids, /* Array of global IDs for non-local objects
assigned to this processor in the new
decomposition; this field can be NULL if
the application doesn't provide import IDs.*/
ZOLTAN_ID_PTR import_local_ids, /* Array of local IDs for non-local objects
assigned to the processor in the new
decomposition; this field can be NULL if the
application does not provide import IDs. */
int *import_procs, /* Array of processor IDs of processors owning
the non-local objects that are assigned to
this processor in the new decomposition; this
field can be NULL if the application does
not provide import IDs. */
int *import_to_part, /* Array of partition numbers to which imported
objects should be assigned. */
int num_export, /* Number of objs to be exported
to other processors to establish the new
decomposition. */
ZOLTAN_ID_PTR export_global_ids, /* Array of global IDs of
objects to be exported to other processors
to establish the new decomposition. */
ZOLTAN_ID_PTR export_local_ids, /* Array of local IDs of
objects to be exported to other processors
to establish the new decomposition. */
int *export_procs, /* Array of processor IDs
to which objects will be exported
to establish the new decomposition. */
int *export_to_part /* Array of partition numbers to which exported
objects should be assigned. */
)
{
/*
* Routine to help perform migration. If migration pre-processing routine
* (ZOLTAN_PRE_MIGRATE_FN) is specified, this routine first calls that fn.
* It then calls a function to obtain the size of the migrating objects
* (ZOLTAN_OBJ_SIZE_FN). The routine next calls an application-specified
* object packing routine (ZOLTAN_PACK_OBJ_FN) for each object
* to be exported. It develops the needed communication map to move the
* objects to other processors. It performs the communication according
* to the map, and then calls an application-specified object unpacking
* routine (ZOLTAN_UNPACK_OBJ_FN) for each object imported.
*/
char *yo = "Zoltan_Migrate";
int num_gid_entries, num_lid_entries; /* lengths of global & local ids */
int *sizes = NULL; /* sizes (in bytes) of the object data for export. */
int id_size; /* size (in bytes) of ZOLTAN_GID + padding for
alignment */
int tag_size; /* size (in bytes) of ZOLTAN_GID + one int
(for message size) */
char *export_buf = NULL; /* buffer for packing export data. */
char *import_buf = NULL; /* buffer for receiving imported data. */
char *tmp; /* temporary pointer into buffers. */
int i; /* loop counter. */
int tmp_size; /* size of a single object's data. */
int *idx = NULL; /* index used for multi-fn packs and unpacks. */
int idx_cnt = 0; /* index counter for idx array. */
ZOLTAN_ID_PTR tmp_id = NULL; /* pointer to storage for a global ID in comm
buf */
ZOLTAN_ID_PTR lid; /* temporary pointer to a local ID; used to pass
NULL to query functions when NUM_LID_ENTRIES=0. */
ZOLTAN_COMM_OBJ *imp_plan = NULL; /* Comm obj built from import lists. */
ZOLTAN_COMM_OBJ *exp_plan = NULL; /* Comm obj built from export lists. */
int msgtag, msgtag2; /* Tags for communication routines */
int total_send_size; /* Total size of outcoming message (in #items) */
int total_recv_size; /* Total size of incoming message (in #items) */
int aligned_int; /* size of an int padded for alignment */
int dest; /* temporary destination partition. */
int include_parts = 0; /* flag indicating whether partition info is
provided */
int ierr = ZOLTAN_OK;
int actual_num_exp = 0;
int actual_exp_allocated = 0;
ZOLTAN_ID_PTR actual_exp_gids = NULL; /* Arrays containing only objs to */
ZOLTAN_ID_PTR actual_exp_lids = NULL; /* actually be packed. Objs that */
int *actual_exp_procs = NULL; /* are changing partition but not */
int *actual_exp_to_part = NULL; /* processor may not be included. */
int actual_num_imp = 0;
int actual_imp_allocated = 0;
ZOLTAN_ID_PTR actual_imp_gids = NULL; /* Arrays containing only objs to */
ZOLTAN_ID_PTR actual_imp_lids = NULL; /* actually be imported. Objs that */
int *actual_imp_procs = NULL; /* are changing partition but not */
int *actual_imp_to_part = NULL; /* processor may not be included. */
ZOLTAN_TRACE_ENTER(zz, yo);
/*
* Return if this processor is not in the Zoltan structure's
* communicator.
*/
if (ZOLTAN_PROC_NOT_IN_COMMUNICATOR(zz)) {
goto End;
}
/*
* Check that all procs use the same id types.
*/
ierr = check_input(zz,
((num_export >= 0 && export_to_part) ||
(num_import >= 0 && import_to_part)),
&include_parts);
if (ierr != ZOLTAN_OK)
goto End;
num_gid_entries = zz->Num_GID;
num_lid_entries = zz->Num_LID;
/*
* Check that all necessary query functions are available.
*/
if (zz->Get_Obj_Size == NULL && zz->Get_Obj_Size_Multi == NULL) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Must register a "
"ZOLTAN_OBJ_SIZE_FN or ZOLTAN_OBJ_SIZE_MULTI_FN function "
"to use the migration-help tools.");
ierr = ZOLTAN_FATAL;
goto End;
}
if (zz->Pack_Obj == NULL && zz->Pack_Obj_Multi == NULL) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Must register a "
"ZOLTAN_PACK_OBJ_FN or ZOLTAN_PACK_OBJ_MULTI_FN function "
"to use the migration-help tools.");
ierr = ZOLTAN_FATAL;
goto End;
}
if (zz->Unpack_Obj == NULL && zz->Unpack_Obj_Multi == NULL) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Must register a "
"ZOLTAN_UNPACK_OBJ_FN or ZOLTAN_UNPACK_OBJ_MULTI_FN function "
"to use the migration-help tools.");
ierr = ZOLTAN_FATAL;
goto End;
}
if (num_export >= 0) {
/* Build the actual export arrays */
ierr = actual_arrays(zz, num_gid_entries, num_lid_entries,
num_export, export_global_ids, export_local_ids,
export_procs, export_to_part,
&actual_num_exp, &actual_exp_gids, &actual_exp_lids,
&actual_exp_procs, &actual_exp_to_part,
&actual_exp_allocated);
if (ierr < 0)
goto End;
/* Compute communication map based on actual exports. */
msgtag = 32767;
ierr = Zoltan_Comm_Create(&exp_plan, actual_num_exp, actual_exp_procs,
zz->Communicator, msgtag, &actual_num_imp);
if (ierr < 0) {
ZOLTAN_PRINT_ERROR(zz->Proc,yo,"Error returned from Zoltan_Comm_Create.");
goto End;
}
}
else if (num_import >= 0) {
/* Build the actual import arrays */
ierr = actual_arrays(zz, num_gid_entries, num_lid_entries,
num_import, import_global_ids, import_local_ids,
import_procs, import_to_part,
&actual_num_imp, &actual_imp_gids, &actual_imp_lids,
&actual_imp_procs, &actual_imp_to_part,
&actual_imp_allocated);
if (ierr < 0)
goto End;
/* Compute communication map based on imports. */
msgtag = 32767;
ierr = Zoltan_Comm_Create(&imp_plan, actual_num_imp, actual_imp_procs,
zz->Communicator, msgtag, &actual_num_exp);
if (ierr < 0) {
ZOLTAN_PRINT_ERROR(zz->Proc,yo,"Error returned from Zoltan_Comm_Create.");
goto End;
}
/* Compute actual export lists for packing objects */
if (actual_num_exp > 0) {
actual_exp_allocated = 1;
actual_exp_gids = ZOLTAN_MALLOC_GID_ARRAY(zz, actual_num_exp);
actual_exp_lids = ZOLTAN_MALLOC_LID_ARRAY(zz, actual_num_exp);
actual_exp_procs = (int *) ZOLTAN_MALLOC(sizeof(int) * actual_num_exp);
if (include_parts)
actual_exp_to_part = (int *) ZOLTAN_MALLOC(sizeof(int)*actual_num_exp);
if (actual_exp_gids == NULL ||
(num_lid_entries && actual_exp_lids == NULL) ||
actual_exp_procs == NULL ||
(import_to_part != NULL && actual_exp_to_part == NULL)) {
Zoltan_Multifree(__FILE__, __LINE__, 4,
&actual_exp_gids, &actual_exp_lids,
&actual_exp_procs, &actual_exp_to_part);
ierr = ZOLTAN_MEMERR;
goto End;
}
}
msgtag2 = 32766;
ierr = Zoltan_Comm_Do(imp_plan, msgtag2, (char *) actual_imp_gids,
(int) (sizeof(ZOLTAN_ID_TYPE)*(num_gid_entries)),
(char *) actual_exp_gids);
if (ierr < 0) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Error returned from Zoltan_Comm_Do.");
goto End;
}
if (num_lid_entries) {
msgtag2--;
ierr = Zoltan_Comm_Do(imp_plan, msgtag2, (char *) actual_imp_lids,
(int) (sizeof(ZOLTAN_ID_TYPE)*num_lid_entries),
(char *) actual_exp_lids);
if (ierr < 0) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Error returned from Zoltan_Comm_Do.");
goto End;
}
}
Zoltan_Comm_Info(imp_plan, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, actual_exp_procs, NULL);
if (include_parts) {
msgtag2--;
ierr = Zoltan_Comm_Do(imp_plan, msgtag2, (char *) actual_imp_to_part,
(int) sizeof(int), (char *) actual_exp_to_part);
if (ierr < 0) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Error returned from Zoltan_Comm_Do.");
goto End;
}
}
/* Create inverse plan (i.e., plan based on exports) so can set
* variable sizes.
* (Zoltan_Comm_Do_Reverse(imp_plan, ...) allows sending variable
* but does not tell how large to allocate receive buffer.
*/
ierr = Zoltan_Comm_Invert_Plan(&imp_plan);
exp_plan = imp_plan;
imp_plan = NULL;
}
else {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Import or export lists needed.");
ierr = ZOLTAN_FATAL;
goto End;
}
if (zz->Migrate.Pre_Migrate_PP != NULL) {
zz->Migrate.Pre_Migrate_PP(zz->Migrate.Pre_Migrate_PP_Data,
num_gid_entries, num_lid_entries,
num_import, import_global_ids,
import_local_ids, import_procs, import_to_part,
num_export, export_global_ids,
export_local_ids, export_procs, export_to_part,
&ierr);
if (ierr < 0) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Error returned from "
"ZOLTAN_PRE_MIGRATE_PP_FN function.");
goto End;
}
}
if (zz->Migrate.Pre_Migrate != NULL) {
zz->Migrate.Pre_Migrate(zz->Migrate.Pre_Migrate_Data,
num_gid_entries, num_lid_entries,
num_import, import_global_ids,
import_local_ids, import_procs,
num_export, export_global_ids,
export_local_ids, export_procs,
&ierr);
if (ierr < 0) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Error returned from "
"ZOLTAN_PRE_MIGRATE_FN function.");
goto End;
}
}
ZOLTAN_TRACE_DETAIL(zz, yo, "Done pre-migration processing");
id_size = Zoltan_Align(num_gid_entries * sizeof(ZOLTAN_ID_TYPE));
/* Note that alignment is not strictly necessary
when ZOLTAN_ID_TYPE is int or unsigned int. */
aligned_int = Zoltan_Align(sizeof(int));
tag_size = id_size + aligned_int;
/*
* For each object, allow space for its global ID and its data plus
* one int (for the object data size).
* Zoltan will pack the global IDs; the application must pack the data
* through the pack routine. Zoltan needs the global IDs for unpacking,
* as the order of the data received during communication is not
* necessarily the same order as import_global_ids[].
* Zoltan also needs to communicate the sizes of the objects because
* only the sender knows the size of each object.
*/
if (actual_num_exp > 0) {
sizes = (int *) ZOLTAN_MALLOC(actual_num_exp * sizeof(int));
if (!sizes) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Memory error.");
ierr = ZOLTAN_MEMERR;
goto End;
}
if (zz->Get_Obj_Size_Multi != NULL) {
zz->Get_Obj_Size_Multi(zz->Get_Obj_Size_Multi_Data,
num_gid_entries, num_lid_entries, actual_num_exp,
actual_exp_gids, actual_exp_lids, sizes, &ierr);
if (ierr < 0) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Error returned from "
"ZOLTAN_OBJ_SIZE_MULTI function.");
goto End;
}
}
else {
for (i = 0; i < actual_num_exp; i++) {
lid = (num_lid_entries ? &(actual_exp_lids[i*num_lid_entries]) : NULL);
sizes[i] = zz->Get_Obj_Size(zz->Get_Obj_Size_Data,
num_gid_entries, num_lid_entries,
&(actual_exp_gids[i*num_gid_entries]),
lid, &ierr);
if (ierr < 0) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Error returned from "
"ZOLTAN_OBJ_SIZE function.");
goto End;
}
}
}
total_send_size = 0;
for (i = 0; i < actual_num_exp; i++) {
sizes[i] = Zoltan_Align(sizes[i]);
total_send_size += sizes[i] + tag_size;
}
export_buf = (char *) ZOLTAN_CALLOC(total_send_size, sizeof(char));
if (!export_buf) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Memory error.");
ierr = ZOLTAN_MEMERR;
goto End;
}
if (zz->Pack_Obj_Multi != NULL) {
/* Allocate an index array for ZOLTAN_PACK_OBJ_MULTI_FN. */
idx = (int *) ZOLTAN_MALLOC(actual_num_exp * sizeof(int));
if (!idx) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Memory error.");
ierr = ZOLTAN_MEMERR;
goto End;
}
}
/*
* Pack the objects for export.
*/
idx_cnt = 0;
tmp = export_buf;
for (i = 0; i < actual_num_exp; i++) {
/* Pack the object's global ID */
tmp_id = (ZOLTAN_ID_PTR) tmp;
ZOLTAN_SET_GID(zz, tmp_id, &(actual_exp_gids[i*num_gid_entries]));
tmp += id_size;
/* Pack the object's size */
*((int *)tmp) = sizes[i];
tmp += aligned_int;
/* If using ZOLTAN_PACK_OBJ_MULTI_FN, build the index array. */
idx_cnt += tag_size;
if (idx != NULL) {
idx[i] = idx_cnt;
}
tmp += sizes[i];
idx_cnt += sizes[i];
}
if (zz->Pack_Obj_Multi != NULL) {
if (zz->Debug_Level >= ZOLTAN_DEBUG_ALL) {
printf("[%1d] DEBUG in %s: Packing objects with multi-pack\n",
zz->Proc, yo);
}
zz->Pack_Obj_Multi(zz->Pack_Obj_Multi_Data,
num_gid_entries, num_lid_entries, actual_num_exp,
actual_exp_gids, actual_exp_lids,
(actual_exp_to_part!=NULL ? actual_exp_to_part
: actual_exp_procs),
sizes, idx, export_buf, &ierr);
if (ierr < 0) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Error returned from "
"ZOLTAN_PACK_OBJ_MULTI function.");
goto End;
}
}
else {
tmp = export_buf + tag_size;
for (i = 0; i < actual_num_exp; i++) {
if (zz->Debug_Level >= ZOLTAN_DEBUG_ALL) {
printf("[%1d] DEBUG in %s: Packing object with gid ", zz->Proc, yo);
ZOLTAN_PRINT_GID(zz, &(actual_exp_gids[i*num_gid_entries]));
printf("size = %d bytes\n", sizes[i]);
}
/* Pack the object's data */
lid = (num_lid_entries ? &(actual_exp_lids[i*num_lid_entries]) : NULL);
dest = (actual_exp_to_part != NULL ? actual_exp_to_part[i]
: actual_exp_procs[i]);
zz->Pack_Obj(zz->Pack_Obj_Data,
num_gid_entries, num_lid_entries,
&(actual_exp_gids[i*num_gid_entries]), lid, dest,
sizes[i], tmp, &ierr);
if (ierr < 0) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Error returned from "
"ZOLTAN_PACK_OBJ function.");
goto End;
}
tmp += sizes[i] + tag_size;
}
}
ZOLTAN_FREE(&idx);
tmp_id = NULL;
}
ZOLTAN_TRACE_DETAIL(zz, yo, "Done packing objects");
/* Modify sizes[] to contain message sizes, not object sizes */
for (i=0; i<actual_num_exp; i++) {
sizes[i] += tag_size;
}
msgtag--;
ierr = Zoltan_Comm_Resize(exp_plan, sizes, msgtag, &total_recv_size);
if (ierr < 0) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Error returned from Zoltan_Comm_Resize.");
goto End;
}
if (actual_num_imp > 0) {
import_buf = (char *) ZOLTAN_MALLOC(total_recv_size);
if (!import_buf) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Memory error.");
ierr = ZOLTAN_MEMERR;
goto End;
}
}
/*
* Send the export data using the communication plan.
*/
msgtag2 = 32765;
ierr = Zoltan_Comm_Do(exp_plan, msgtag2, export_buf, 1, import_buf);
if (ierr < 0) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Error returned from Zoltan_Comm_Do.");
goto End;
}
/*
* Free whatever memory we can.
*/
Zoltan_Comm_Destroy(&exp_plan);
ZOLTAN_FREE(&export_buf);
ZOLTAN_FREE(&sizes);
ZOLTAN_TRACE_DETAIL(zz, yo, "Done communication");
/*
* Perform application-specified processing before unpacking the data.
*/
if (zz->Migrate.Mid_Migrate_PP != NULL) {
zz->Migrate.Mid_Migrate_PP(zz->Migrate.Mid_Migrate_PP_Data,
num_gid_entries, num_lid_entries,
num_import, import_global_ids,
import_local_ids, import_procs, import_to_part,
num_export, export_global_ids,
export_local_ids, export_procs, export_to_part,
&ierr);
if (ierr < 0) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Error returned from "
"ZOLTAN_MID_MIGRATE_PP_FN function.");
goto End;
}
}
if (zz->Migrate.Mid_Migrate != NULL) {
zz->Migrate.Mid_Migrate(zz->Migrate.Mid_Migrate_Data,
num_gid_entries, num_lid_entries,
num_import, import_global_ids,
import_local_ids, import_procs,
num_export, export_global_ids,
export_local_ids, export_procs,
&ierr);
if (ierr < 0) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Error returned from "
"ZOLTAN_MID_MIGRATE_FN function.");
goto End;
}
}
/*
* Unpack the object data.
*/
if (actual_num_imp > 0) {
if (zz->Unpack_Obj_Multi != NULL) {
/* Allocate and fill input arrays for Unpack_Obj_Multi. */
sizes = (int *) ZOLTAN_MALLOC(actual_num_imp * sizeof(int));
tmp_id = (ZOLTAN_ID_PTR) ZOLTAN_MALLOC_GID_ARRAY(zz, actual_num_imp);
idx = (int *) ZOLTAN_MALLOC(actual_num_imp * sizeof(int));
if (!sizes || !tmp_id || !idx) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Memory error.");
ierr = ZOLTAN_MEMERR;
goto End;
}
tmp = import_buf;
idx_cnt = 0;
for (i = 0; i < actual_num_imp; i++) {
/* Unpack the object's global ID */
ZOLTAN_SET_GID(zz, &(tmp_id[i*num_gid_entries]), (ZOLTAN_ID_PTR) tmp);
tmp += id_size;
/* Unpack the object's size */
sizes[i] = *((int *)tmp);
tmp += aligned_int;
/* If using ZOLTAN_UNPACK_OBJ_MULTI_FN, build the index array. */
idx_cnt += tag_size;
if (idx != NULL) {
idx[i] = idx_cnt;
}
tmp += sizes[i];
idx_cnt += sizes[i];
}
if (zz->Debug_Level >= ZOLTAN_DEBUG_ALL) {
printf("[%1d] DEBUG in %s: Unpacking objects with multi-fn\n",
zz->Proc,yo);
}
zz->Unpack_Obj_Multi(zz->Unpack_Obj_Multi_Data, num_gid_entries,
actual_num_imp, tmp_id, sizes, idx, import_buf, &ierr);
ZOLTAN_FREE(&import_buf);
ZOLTAN_FREE(&sizes);
ZOLTAN_FREE(&tmp_id);
ZOLTAN_FREE(&idx);
if (ierr < 0) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Error returned from "
"ZOLTAN_UNPACK_OBJ_MULTI_FN.");
goto End;
}
}
else {
tmp = import_buf;
for (i = 0; i < actual_num_imp; i++) {
tmp_size = *((int *)(tmp + id_size));
if (zz->Debug_Level >= ZOLTAN_DEBUG_ALL) {
printf("[%1d] DEBUG in %s: Unpacking object with gid ", zz->Proc, yo);
ZOLTAN_PRINT_GID(zz, (ZOLTAN_ID_PTR)tmp);
printf("size = %d bytes\n", tmp_size);
}
/* Unpack the object's data */
zz->Unpack_Obj(zz->Unpack_Obj_Data, num_gid_entries,
(ZOLTAN_ID_PTR) tmp, tmp_size,
tmp + tag_size, &ierr);
if (ierr < 0) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Error returned from "
"ZOLTAN_UNPACK_OBJ_FN.");
goto End;
}
tmp += (tmp_size + tag_size);
}
ZOLTAN_FREE(&import_buf);
}
}
ZOLTAN_TRACE_DETAIL(zz, yo, "Done unpacking objects");
if (zz->Migrate.Post_Migrate_PP != NULL) {
zz->Migrate.Post_Migrate_PP(zz->Migrate.Post_Migrate_PP_Data,
num_gid_entries, num_lid_entries,
num_import, import_global_ids,
import_local_ids, import_procs, import_to_part,
num_export, export_global_ids,
export_local_ids, export_procs, export_to_part,
&ierr);
if (ierr < 0) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Error returned from "
"ZOLTAN_POST_MIGRATE_PP_FN function.");
goto End;
}
}
if (zz->Migrate.Post_Migrate != NULL) {
zz->Migrate.Post_Migrate(zz->Migrate.Post_Migrate_Data,
num_gid_entries, num_lid_entries,
num_import, import_global_ids,
import_local_ids, import_procs,
num_export, export_global_ids,
export_local_ids, export_procs,
&ierr);
if (ierr < 0) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Error returned from "
"ZOLTAN_POST_MIGRATE_FN function.");
goto End;
}
}
End:
if (actual_exp_allocated) {
Zoltan_Multifree(__FILE__, __LINE__, 4,
&actual_exp_gids, &actual_exp_lids,
&actual_exp_procs, &actual_exp_to_part);
}
if (actual_imp_allocated) {
Zoltan_Multifree(__FILE__, __LINE__, 4,
&actual_imp_gids, &actual_imp_lids,
&actual_imp_procs, &actual_imp_to_part);
}
if (ierr < 0) {
if (exp_plan) Zoltan_Comm_Destroy(&exp_plan);
Zoltan_Multifree(__FILE__, __LINE__, 5,
&import_buf, &tmp_id, &sizes, &idx, &export_buf);
}
ZOLTAN_TRACE_EXIT(zz, yo);
return (ierr);
}
static int Zoltan_LB(
ZZ *zz,
int include_parts, /* Flag indicating whether to generate
part informtion;
0 if called by Zoltan_LB_Balance,
1 if called by Zoltan_LB_Partition. */
int *changes, /* Set to zero or one depending on if
Zoltan determines a new
decomposition or not:
zero - No changes to the decomposition
were made by the load-balancing
algorithm; migration is not needed.
one - A new decomposition is suggested
by the load-balancer; migration is
needed to establish the new
decomposition. */
int *num_gid_entries, /* The number of array entries in a global ID;
set to be the max over all processors in
zz->Communicator of the parameter
Num_Global_ID_Entries. */
int *num_lid_entries, /* The number of array entries in a local ID;
set to be the max over all processors in
zz->Communicator of the parameter
Num_Local_ID_Entries. */
int *num_import_objs, /* The number of non-local objects in the
processor's new decomposition. */
ZOLTAN_ID_PTR *import_global_ids,/* Array of global IDs for non-local objects
(i.e., objs to be imported) in
the processor's new decomposition. */
ZOLTAN_ID_PTR *import_local_ids, /* Array of local IDs for non-local objects
(i.e., objs to be imported) in
the processor's new decomposition. */
int **import_procs, /* Array of processor IDs for processors
currently owning non-local objects (i.e.,
objs to be imported) in this processor's
new decomposition. */
int **import_to_part, /* Partition to which the objects should be
imported. */
int *num_export_objs, /* The number of local objects that need to
be exported from the processor to establish
the new decomposition. */
ZOLTAN_ID_PTR *export_global_ids,/* Array of global IDs for objects that need
to be exported (assigned and sent to other
processors) to establish the new
decomposition. */
ZOLTAN_ID_PTR *export_local_ids, /* Array of local IDs for objects that need
to be exported (assigned and sent to other
processors) to establish the new
decomposition. */
int **export_procs, /* Array of destination processor IDs for
objects that need to be exported
to establish the new decomposition. */
int **export_to_part /* Partition to which objects should be
exported. */
)
{
/*
* Main load-balancing routine.
* Input: a Zoltan structure with appropriate function pointers set.
* Output:
* changes
* num_import_objs
* import_global_ids
* import_local_ids
* import_procs
* import_to_part
* num_export_objs
* export_global_ids
* export_local_ids
* export_procs
* export_to_part
* Return values:
* Zoltan error code.
*/
char *yo = "Zoltan_LB";
int gmax; /* Maximum number of imported/exported objects
over all processors. */
int error = ZOLTAN_OK; /* Error code */
double start_time, end_time;
double lb_time[2] = {0.0,0.0};
char msg[256];
int comm[3],gcomm[3];
float *part_sizes = NULL, *fdummy = NULL;
int wgt_dim, part_dim;
int all_num_obj, i, ts, idIdx;
struct Hash_Node **ht;
int *export_all_procs, *export_all_to_part, *parts=NULL;
ZOLTAN_ID_PTR all_global_ids=NULL, all_local_ids=NULL;
ZOLTAN_ID_PTR gid;
#ifdef ZOLTAN_OVIS
struct OVIS_parameters ovisParameters;
#endif
ZOLTAN_TRACE_ENTER(zz, yo);
if (zz->Proc == zz->Debug_Proc && zz->Debug_Level >= ZOLTAN_DEBUG_PARAMS){
printf("Build configuration:\n");
Zoltan_Print_Configuration(" ");
printf("\n");
Zoltan_Print_Key_Params(zz);
}
start_time = Zoltan_Time(zz->Timer);
#ifdef ZOLTAN_OVIS
Zoltan_OVIS_Setup(zz, &ovisParameters);
if (zz->Proc == 0)
printf("OVIS PARAMETERS %s %s %d %f\n",
ovisParameters.hello,
ovisParameters.dll,
ovisParameters.outputLevel,
ovisParameters.minVersion);
ovis_enabled(zz->Proc, ovisParameters.dll);
#endif
/*
* Compute Max number of array entries per ID over all processors.
* Compute Max number of return arguments for Zoltan_LB_Balance.
* This is a sanity-maintaining step; we don't want different
* processors to have different values for these numbers.
*/
comm[0] = zz->Num_GID;
comm[1] = zz->Num_LID;
comm[2] = zz->LB.Return_Lists;
MPI_Allreduce(comm, gcomm, 3, MPI_INT, MPI_MAX, zz->Communicator);
zz->Num_GID = *num_gid_entries = gcomm[0];
zz->Num_LID = *num_lid_entries = gcomm[1];
zz->LB.Return_Lists = gcomm[2];
/* assume no changes */
*changes = 0;
*num_import_objs = *num_export_objs = 0;
*import_global_ids = NULL;
*import_local_ids = NULL;
*import_procs = NULL;
*import_to_part = NULL;
*export_global_ids = NULL;
*export_local_ids = NULL;
*export_procs = NULL;
*export_to_part = NULL;
/*
* Return if this processor is not in the Zoltan structure's
* communicator.
*/
if (ZOLTAN_PROC_NOT_IN_COMMUNICATOR(zz))
goto End;
if (zz->LB.Method == NONE) {
if (zz->Proc == zz->Debug_Proc && zz->Debug_Level >= ZOLTAN_DEBUG_PARAMS)
printf("%s Balancing method selected == NONE; no balancing performed\n",
yo);
error = ZOLTAN_WARN;
goto End;
}
/*
* Sync the random number generator across processors.
*/
Zoltan_Srand_Sync(Zoltan_Rand(NULL), NULL, zz->Communicator);
/* Since generating a new partition, need to free old mapping vector */
zz->LB.OldRemap = zz->LB.Remap;
zz->LB.Remap = NULL;
error = Zoltan_LB_Build_PartDist(zz);
if (error != ZOLTAN_OK && error != ZOLTAN_WARN)
goto End;
if (zz->Debug_Level >= ZOLTAN_DEBUG_ALL) {
int i, np, fp;
for (i = 0; i < zz->Num_Proc; i++) {
Zoltan_LB_Proc_To_Part(zz, i, &np, &fp);
printf("%d Proc_To_Part Proc %d NParts %d FPart %d\n",
zz->Proc, i, np, fp);
}
}
/*
* Generate parts sizes.
*/
#ifdef ZOLTAN_OVIS
/* set part sizes computed by OVIS, if requested. Processes set only their own value */
{
float part_sizes[1];
int part_ids[1], wgt_idx[1];
wgt_idx[0] = 0;
part_ids[0] = 0;
ovis_getPartsize(&(part_sizes[0]));
printf("Rank %d ps %f\n",zz->Proc, part_sizes[0]);
/* clear out old part size info first */
Zoltan_LB_Set_Part_Sizes(zz, 0, -1, NULL, NULL, NULL);
Zoltan_LB_Set_Part_Sizes(zz, 0, 1, part_ids, wgt_idx, part_sizes);
}
#endif
wgt_dim = zz->Obj_Weight_Dim;
part_dim = ((wgt_dim > 0) ? wgt_dim : 1);
part_sizes = (float *) ZOLTAN_MALLOC(sizeof(float) * part_dim
* zz->LB.Num_Global_Parts);
if (part_sizes == NULL) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Memory error.");
error = ZOLTAN_MEMERR;
goto End;
}
/* Get part sizes. */
Zoltan_LB_Get_Part_Sizes(zz, zz->LB.Num_Global_Parts, part_dim,
part_sizes);
#ifdef ZOLTAN_OVIS
/* if (ovisParameters.outputlevel > 3) */
{
int myRank = zz->Proc;
if (myRank == 0){
int i, j;
for (i = 0; i < zz->LB.Num_Global_Parts; i++){
for (j = 0; j < part_dim; j++){
printf("Rank %d AG: part_sizes[%d] = %f (Num_Global_Parts = %d, part_dim = %d)\n",zz->Proc,
(i*part_dim+j), part_sizes[i*part_dim+j],zz->LB.Num_Global_Parts, part_dim);
}
}
}
}
#endif
/*
* Call the actual load-balancing function.
*/
error = zz->LB.LB_Fn(zz, part_sizes,
num_import_objs, import_global_ids, import_local_ids,
import_procs, import_to_part,
num_export_objs, export_global_ids, export_local_ids,
export_procs, export_to_part);
ZOLTAN_FREE(&part_sizes);
if (error == ZOLTAN_FATAL || error == ZOLTAN_MEMERR){
sprintf(msg, "Partitioning routine returned code %d.", error);
#ifdef HOST_LINUX
if ((error == ZOLTAN_MEMERR) && (Zoltan_Memory_Get_Debug() > 0)){
Zoltan_write_linux_meminfo(0, "State of /proc/meminfo after malloc failure\n", 0);
}
#endif
ZOLTAN_PRINT_ERROR(zz->Proc, yo, msg);
goto End;
}
else if (error){
if (zz->Debug_Level >ZOLTAN_DEBUG_NONE) {
sprintf(msg, "Partitioning routine returned code %d.", error);
ZOLTAN_PRINT_WARN(zz->Proc, yo, msg);
}
}
ZOLTAN_TRACE_DETAIL(zz, yo, "Done partitioning");
if (*num_import_objs >= 0)
MPI_Allreduce(num_import_objs, &gmax, 1, MPI_INT, MPI_MAX,
zz->Communicator);
else /* use export data */
MPI_Allreduce(num_export_objs, &gmax, 1, MPI_INT, MPI_MAX,
zz->Communicator);
if (gmax == 0) {
/*
* Decomposition was not changed by the load balancing; no migration
* is needed.
*/
if (zz->Proc == zz->Debug_Proc && zz->Debug_Level >= ZOLTAN_DEBUG_PARAMS)
printf("%s No changes to the decomposition due to partitioning; "
"no migration is needed.\n", yo);
/*
* Reset num_import_objs and num_export_objs; don't want to return
* -1 for the arrays that weren't returned by ZOLTAN_LB_FN.
*/
*num_import_objs = *num_export_objs = 0;
if (zz->LB.Return_Lists == ZOLTAN_LB_COMPLETE_EXPORT_LISTS){
/*
* This parameter setting requires that all local objects
* and their assignments appear in the export list.
*/
error= Zoltan_Get_Obj_List_Special_Malloc(zz, num_export_objs,
export_global_ids, export_local_ids,
wgt_dim, &fdummy, export_to_part);
if (error == ZOLTAN_OK){
ZOLTAN_FREE(&fdummy);
if (Zoltan_Special_Malloc(zz, (void **)export_procs, *num_export_objs,
ZOLTAN_SPECIAL_MALLOC_INT)){
for (i=0; i<*num_export_objs; i++)
(*export_procs)[i] = zz->Proc;
}
else{
error = ZOLTAN_MEMERR;
}
}
}
goto End;
}
/*
* Check whether we know the import data, export data, or both.
*
* If we were given the import data,
* we know what the new decomposition should look like on the
* processor, but we don't know which of our local objects we have
* to export to other processors to establish the new decomposition.
* Reverse the argument if we were given the export data.
*
* Unless we were given both maps, compute the inverse map.
*/
if (zz->LB.Return_Lists == ZOLTAN_LB_NO_LISTS) {
if (*num_import_objs >= 0)
Zoltan_LB_Special_Free_Part(zz, import_global_ids, import_local_ids,
import_procs, import_to_part);
if (*num_export_objs >= 0)
Zoltan_LB_Special_Free_Part(zz, export_global_ids, export_local_ids,
export_procs, export_to_part);
*num_import_objs = *num_export_objs = -1;
}
if (*num_import_objs >= 0){
if (*num_export_objs >= 0) {
/* Both maps already available; nothing to do. */;
}
else if (zz->LB.Return_Lists == ZOLTAN_LB_ALL_LISTS ||
zz->LB.Return_Lists == ZOLTAN_LB_EXPORT_LISTS ||
zz->LB.Return_Lists == ZOLTAN_LB_COMPLETE_EXPORT_LISTS) {
/* Export lists are requested; compute export map */
error = Zoltan_Invert_Lists(zz, *num_import_objs, *import_global_ids,
*import_local_ids, *import_procs,
*import_to_part,
num_export_objs, export_global_ids,
export_local_ids, export_procs,
export_to_part);
if (error != ZOLTAN_OK && error != ZOLTAN_WARN) {
sprintf(msg, "Error building return arguments; "
"%d returned by Zoltan_Compute_Destinations\n", error);
ZOLTAN_PRINT_ERROR(zz->Proc, yo, msg);
goto End;
}
if (zz->LB.Return_Lists == ZOLTAN_LB_EXPORT_LISTS ||
zz->LB.Return_Lists == ZOLTAN_LB_COMPLETE_EXPORT_LISTS) {
/* Method returned import lists, but only export lists were desired. */
/* Import lists not needed; free them. */
*num_import_objs = -1;
Zoltan_LB_Special_Free_Part(zz, import_global_ids, import_local_ids,
import_procs, import_to_part);
}
}
}
else { /* (*num_import_objs < 0) */
if (*num_export_objs >= 0) {
/* Only export lists have been returned. */
if (zz->LB.Return_Lists == ZOLTAN_LB_ALL_LISTS ||
zz->LB.Return_Lists == ZOLTAN_LB_IMPORT_LISTS) {
/* Compute import map */
error = Zoltan_Invert_Lists(zz, *num_export_objs, *export_global_ids,
*export_local_ids, *export_procs,
*export_to_part,
num_import_objs, import_global_ids,
import_local_ids, import_procs,
import_to_part);
if (error != ZOLTAN_OK && error != ZOLTAN_WARN) {
sprintf(msg, "Error building return arguments; "
"%d returned by Zoltan_Compute_Destinations\n", error);
ZOLTAN_PRINT_ERROR(zz->Proc, yo, msg);
goto End;
}
if (zz->LB.Return_Lists == ZOLTAN_LB_IMPORT_LISTS) {
/* Method returned export lists, but only import lists are desired. */
/* Export lists not needed; free them. */
*num_export_objs = -1;
Zoltan_LB_Special_Free_Part(zz, export_global_ids, export_local_ids,
export_procs, export_to_part);
}
}
}
else { /* *num_export_objs < 0 && *num_import_objs < 0) */
if (zz->LB.Return_Lists) {
/* No map at all available */
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Load-balancing function returned "
"neither import nor export data.");
error = ZOLTAN_WARN;
goto End;
}
}
}
if (zz->LB.Return_Lists == ZOLTAN_LB_COMPLETE_EXPORT_LISTS) {
/*
* Normally, Zoltan_LB returns in the export lists all local
* objects that are moving off processor, or that are assigned
* to a part on the local processor that is not the
* default part. This setting of Return_Lists requests
* that all local objects be included in the export list.
*/
if (*num_export_objs == 0){
/* all local objects are remaining on processor */
error= Zoltan_Get_Obj_List_Special_Malloc(zz, num_export_objs,
export_global_ids, export_local_ids,
wgt_dim, &fdummy, export_to_part);
if (error == ZOLTAN_OK){
ZOLTAN_FREE(&fdummy);
if (*num_export_objs) {
if (Zoltan_Special_Malloc(zz, (void **)export_procs, *num_export_objs,
ZOLTAN_SPECIAL_MALLOC_INT)){
for (i=0; i<*num_export_objs; i++)
(*export_procs)[i] = zz->Proc;
}
else{
error = ZOLTAN_MEMERR;
}
}
}
if ((error != ZOLTAN_OK) && (error != ZOLTAN_WARN)) goto End;
}
else{
all_num_obj = zz->Get_Num_Obj(zz->Get_Num_Obj_Data, &error);
if (*num_export_objs < all_num_obj){
/* Create a lookup table for exported IDs */
ts = Zoltan_Recommended_Hash_Size(*num_export_objs);
ht = create_hash_table(zz, *export_global_ids, *num_export_objs, ts);
/* Create a list of all gids, lids and parts */
error= Zoltan_Get_Obj_List_Special_Malloc(zz, &all_num_obj,
&all_global_ids, &all_local_ids,
wgt_dim, &fdummy, &parts);
if ((error == ZOLTAN_OK) || (error == ZOLTAN_WARN)){
ZOLTAN_FREE(&fdummy);
if ((Zoltan_Special_Malloc(zz, (void **)(void*)&export_all_procs,
all_num_obj, ZOLTAN_SPECIAL_MALLOC_INT)==0) ||
(Zoltan_Special_Malloc(zz, (void **)(void*)&export_all_to_part,
all_num_obj, ZOLTAN_SPECIAL_MALLOC_INT)==0)){
error = ZOLTAN_MEMERR;
}
}
if ((error != ZOLTAN_OK) && (error != ZOLTAN_WARN)){
sprintf(msg, "Error building complete export list; "
"%d returned by Zoltan_Get_Obj_List\n", error);
ZOLTAN_PRINT_ERROR(zz->Proc, yo, msg);
goto End;
}
gid = all_global_ids;
for (i=0; i < all_num_obj; i++, gid += zz->Num_GID){
idIdx = search_hash_table(zz, gid, ht, ts);
if (idIdx >= 0){
export_all_procs[i] = (*export_procs)[idIdx];
export_all_to_part[i] = (*export_to_part)[idIdx];
}
else{
export_all_procs[i] = zz->Proc;
export_all_to_part[i] = parts[i];
}
}
free_hash_table(ht, ts);
Zoltan_LB_Special_Free_Part(zz, export_global_ids, export_local_ids,
export_procs, export_to_part);
Zoltan_Special_Free(zz, (void **)(void*)&parts,
ZOLTAN_SPECIAL_MALLOC_INT);
*export_global_ids = all_global_ids;
*export_local_ids = all_local_ids;
*export_procs = export_all_procs;
*export_to_part = export_all_to_part;
*num_export_objs = all_num_obj;
}
}
}
ZOLTAN_TRACE_DETAIL(zz, yo, "Done building return arguments");
end_time = Zoltan_Time(zz->Timer);
lb_time[0] = end_time - start_time;
if (zz->Debug_Level >= ZOLTAN_DEBUG_LIST) {
int i;
Zoltan_Print_Sync_Start(zz->Communicator, TRUE);
printf("ZOLTAN: Objects to be imported to Proc %d\n", zz->Proc);
for (i = 0; i < *num_import_objs; i++) {
printf(" Obj: ");
ZOLTAN_PRINT_GID(zz, &((*import_global_ids)[i*zz->Num_GID]));
printf(" To part: %4d",
(*import_to_part != NULL ? (*import_to_part)[i]
: zz->Proc));
printf(" From processor: %4d\n", (*import_procs)[i]);
}
printf("\n");
printf("ZOLTAN: Objects to be exported from Proc %d\n", zz->Proc);
for (i = 0; i < *num_export_objs; i++) {
printf(" Obj: ");
ZOLTAN_PRINT_GID(zz, &((*export_global_ids)[i*zz->Num_GID]));
printf(" To part: %4d",
(*export_to_part != NULL ? (*export_to_part)[i]
: (*export_procs)[i]));
printf(" To processor: %4d\n", (*export_procs)[i]);
}
Zoltan_Print_Sync_End(zz->Communicator, TRUE);
}
/*
* If the Help_Migrate flag is set, perform migration for the application.
*/
if (zz->Migrate.Auto_Migrate) {
ZOLTAN_TRACE_DETAIL(zz, yo, "Begin auto-migration");
start_time = Zoltan_Time(zz->Timer);
error = Zoltan_Migrate(zz,
*num_import_objs, *import_global_ids,
*import_local_ids, *import_procs, *import_to_part,
*num_export_objs, *export_global_ids,
*export_local_ids, *export_procs, *export_to_part);
if (error != ZOLTAN_OK && error != ZOLTAN_WARN) {
sprintf(msg, "Error in auto-migration; %d returned from "
"Zoltan_Help_Migrate\n", error);
ZOLTAN_PRINT_ERROR(zz->Proc, yo, msg);
goto End;
}
end_time = Zoltan_Time(zz->Timer);
lb_time[1] = end_time - start_time;
ZOLTAN_TRACE_DETAIL(zz, yo, "Done auto-migration");
}
/* Print timing info */
if (zz->Debug_Level >= ZOLTAN_DEBUG_ZTIME) {
if (zz->Proc == zz->Debug_Proc) {
printf("ZOLTAN Times: \n");
}
Zoltan_Print_Stats (zz->Communicator, zz->Debug_Proc, lb_time[0],
"ZOLTAN Partition: ");
if (zz->Migrate.Auto_Migrate)
Zoltan_Print_Stats (zz->Communicator, zz->Debug_Proc, lb_time[1],
"ZOLTAN Migrate: ");
}
*changes = 1;
End:
ZOLTAN_TRACE_EXIT(zz, yo);
return (error);
}
int Zoltan_Order(
ZZ *zz, /* Zoltan structure */
int *num_gid_entries, /* # of entries for a global id */
int *num_lid_entries, /* # of entries for a local id */
int num_obj, /* Number of objects to order */
ZOLTAN_ID_PTR gids, /* List of global ids (local to this proc) */
/* The application must allocate enough space */
ZOLTAN_ID_PTR lids, /* List of local ids (local to this proc) */
/* The application must allocate enough space */
int *rank, /* rank[i] is the rank of gids[i] */
int *iperm, /* inverse permutation of rank */
ZOS *order_info /* Method-specific ordering info. Currently not used. */
)
{
/*
* Main user-call for ordering.
* Input:
* zz, a Zoltan structure with appropriate function pointers set.
* gids, a list of global ids or enough space to store such a list
* lids, a list of local ids or enough space to store such a list
* Output:
* num_gid_entries
* num_lid_entries
* gids, a list of global ids (filled in if empty on entry)
* lids, a list of local ids (filled in if empty on entry)
* rank, rank[i] is the global rank of gids[i]
* iperm, inverse permutation of rank
* order_info, a Zoltan Ordering Struct with additional info.
* Return values:
* Zoltan error code.
*/
char *yo = "Zoltan_Order";
int ierr;
int *vtxdist;
double start_time, end_time;
double order_time[2] = {0.0,0.0};
char msg[256];
int comm[2],gcomm[2];
ZOLTAN_ORDER_FN *Order_fn;
struct Zoltan_Order_Options opt;
ZOLTAN_TRACE_ENTER(zz, yo);
if (zz->Proc == zz->Debug_Proc && zz->Debug_Level >= ZOLTAN_DEBUG_PARAMS)
Zoltan_Print_Key_Params(zz);
start_time = Zoltan_Time(zz->Timer);
/*
* Compute Max number of array entries per ID over all processors.
* This is a sanity-maintaining step; we don't want different
* processors to have different values for these numbers.
*/
comm[0] = zz->Num_GID;
comm[1] = zz->Num_LID;
MPI_Allreduce(comm, gcomm, 2, MPI_INT, MPI_MAX, zz->Communicator);
zz->Num_GID = *num_gid_entries = gcomm[0];
zz->Num_LID = *num_lid_entries = gcomm[1];
/*
* Return if this processor is not in the Zoltan structure's
* communicator.
*/
if (ZOLTAN_PROC_NOT_IN_COMMUNICATOR(zz)) {
ZOLTAN_TRACE_EXIT(zz, yo);
return (ZOLTAN_OK);
}
/*
* Get ordering options from parameter list.
*/
/* Set default parameter values */
strncpy(opt.method, "PARMETIS", MAX_PARAM_STRING_LEN);
strncpy(opt.order_type, "GLOBAL", MAX_PARAM_STRING_LEN);
opt.use_order_info = 0;
opt.start_index = 0;
opt.reorder = 0;
Zoltan_Bind_Param(Order_params, "ORDER_METHOD", (void *) opt.method);
Zoltan_Bind_Param(Order_params, "ORDER_TYPE", (void *) opt.order_type);
Zoltan_Bind_Param(Order_params, "ORDER_START_INDEX", (void *) &opt.start_index);
Zoltan_Bind_Param(Order_params, "REORDER", (void *) &opt.reorder);
Zoltan_Bind_Param(Order_params, "USE_ORDER_INFO", (void *) &opt.use_order_info);
Zoltan_Assign_Param_Vals(zz->Params, Order_params, zz->Debug_Level,
zz->Proc, zz->Debug_Proc);
if (opt.use_order_info == 0) order_info = NULL;
/*
* Check that the user has allocated space for the return args.
*/
if (!(gids && lids && rank && iperm)){
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Input argument is NULL. Please allocate all required arrays before calling this routine.");
ZOLTAN_TRACE_EXIT(zz, yo);
return (ZOLTAN_FATAL);
}
/*
* Find the selected method.
*/
if (!strcmp(opt.method, "NONE")) {
if (zz->Proc == zz->Debug_Proc && zz->Debug_Level >= ZOLTAN_DEBUG_PARAMS)
ZOLTAN_PRINT_WARN(zz->Proc, yo, "Ordering method selected == NONE; no ordering performed\n");
ZOLTAN_TRACE_EXIT(zz, yo);
return (ZOLTAN_WARN);
}
else if (!strcmp(opt.method, "NODEND")) {
Order_fn = Zoltan_ParMetis_Order;
}
else if (!strcmp(opt.method, "METIS")) {
Order_fn = Zoltan_ParMetis_Order;
/* Set ORDER_METHOD to NODEND and ORDER_TYPE to LOCAL */
strcpy(opt.method, "NODEND");
strcpy(opt.order_type, "LOCAL");
}
else if (!strcmp(opt.method, "PARMETIS")) {
Order_fn = Zoltan_ParMetis_Order;
/* Set ORDER_METHOD to NODEND and ORDER_TYPE to LOCAL */
strcpy(opt.method, "NODEND");
strcpy(opt.order_type, "GLOBAL");
}
else {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Unknown ordering method");
ZOLTAN_TRACE_EXIT(zz, yo);
return (ZOLTAN_FATAL);
}
/*
* Construct the heterogenous machine description.
*/
ierr = Zoltan_Build_Machine_Desc(zz);
if (ierr == ZOLTAN_FATAL){
ZOLTAN_TRACE_EXIT(zz, yo);
return (ierr);
}
ZOLTAN_TRACE_DETAIL(zz, yo, "Done machine description");
/*
* Call the actual ordering function.
*/
ierr = (*Order_fn)(zz, num_obj, gids, lids, rank, iperm, &opt, order_info);
if (ierr) {
sprintf(msg, "Ordering routine returned error code %d.", ierr);
if (ierr == ZOLTAN_WARN){
ZOLTAN_PRINT_WARN(zz->Proc, yo, msg);
} else {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, msg);
ZOLTAN_TRACE_EXIT(zz, yo);
return (ierr);
}
}
ZOLTAN_TRACE_DETAIL(zz, yo, "Done ordering");
/* Compute inverse permutation if necessary */
ierr = Zoltan_Get_Distribution(zz, &vtxdist);
if (ierr){
/* Error */
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Error returned from Zoltan_Get_Distribution.\n");
return (ierr);
}
if (!(opt.return_args & RETURN_RANK)){
/* Compute rank from iperm */
ZOLTAN_TRACE_DETAIL(zz, yo, "Inverting permutation");
Zoltan_Inverse_Perm(zz, iperm, rank, vtxdist, opt.order_type, opt.start_index);
}
else if (!(opt.return_args & RETURN_IPERM)){
/* Compute iperm from rank */
ZOLTAN_TRACE_DETAIL(zz, yo, "Inverting permutation");
Zoltan_Inverse_Perm(zz, rank, iperm, vtxdist, opt.order_type, opt.start_index);
}
ZOLTAN_FREE(&vtxdist);
ZOLTAN_TRACE_DETAIL(zz, yo, "Done ordering");
end_time = Zoltan_Time(zz->Timer);
order_time[0] = end_time - start_time;
if (zz->Debug_Level >= ZOLTAN_DEBUG_LIST) {
int i, nobjs;
nobjs = zz->Get_Num_Obj(zz->Get_Num_Obj_Data, &i);
Zoltan_Print_Sync_Start(zz->Communicator, TRUE);
printf("ZOLTAN: rank for ordering on Proc %d\n", zz->Proc);
for (i = 0; i < nobjs; i++) {
printf("GID = ");
ZOLTAN_PRINT_GID(zz, &(gids[i*(*num_gid_entries)]));
printf(", rank = %3d\n", rank[i]);
}
printf("\n");
printf("ZOLTAN: inverse permutation on Proc %d\n", zz->Proc);
for (i = 0; i < nobjs; i++) {
printf("iperm[%3d] = %3d\n", i, iperm[i]);
}
printf("\n");
Zoltan_Print_Sync_End(zz->Communicator, TRUE);
}
/* Print timing info */
if (zz->Debug_Level >= ZOLTAN_DEBUG_ZTIME) {
if (zz->Proc == zz->Debug_Proc) {
printf("ZOLTAN Times: \n");
}
Zoltan_Print_Stats (zz->Communicator, zz->Debug_Proc, order_time[0],
"ZOLTAN Balance: ");
}
ZOLTAN_TRACE_EXIT(zz, yo);
if (ierr)
return (ierr);
else
return (ZOLTAN_OK);
}
int Zoltan_Print_Obj_List(
ZZ *zz,
ZOLTAN_ID_PTR Gids,
ZOLTAN_ID_PTR Lids,
int wdim,
float *Weights,
int *Parts,
int howMany
)
{
int len, i, ierr, j, k, rowSize;
int num_obj=0;
int lidSize = zz->Num_LID;
int gidSize = zz->Num_GID;
if (zz->Get_Num_Obj != NULL) {
num_obj = zz->Get_Num_Obj(zz->Get_Num_Obj_Data, &ierr);
}
if (howMany <= 0){
len = num_obj;
}
else if (howMany < num_obj){
len = howMany;
}
else{
len = num_obj;
}
if (len > 0){
if (Gids && gidSize){
printf("Global ID's \n");
for(i=0; i<len; i++){
ZOLTAN_PRINT_GID(zz, Gids);
Gids += gidSize;
if (i && (i%10==0)) printf("\n");
}
printf("\n");
}
if (Lids && lidSize){
printf("Local ID's \n");
for(i=0; i<len; i++){
ZOLTAN_PRINT_LID(zz, Lids);
Lids += lidSize;
if (i && (i%10==0)) printf("\n");
}
printf("\n");
}
if (Weights && wdim){
rowSize = 15 / wdim;
printf("Object weights\n");
k=0;
for(i=0; i<len; i++){
printf("(");
for (j=0; j<wdim; j++){
printf("%f ", Weights[k++]);
}
printf(") ");
if (i && (i%rowSize==0)) printf("\n");
}
printf("\n");
}
if (Parts){
printf("Partitions\n");
for(i=0; i<len; i++){
printf("%d ", Parts[i]);
if (i && (i%10==0)) printf("\n");
}
printf("\n");
}
}
return len;
}
int Zoltan_Order(
ZZ *zz, /* Zoltan structure */
int num_gid_entries, /* # of entries for a global id */
int num_obj, /* Number of objects to order */
ZOLTAN_ID_PTR gids, /* List of global ids (local to this proc) */
/* The application must allocate enough space */
int *rank, /* rank[i] is the rank of gids[i] */
int *iperm /* iperm[rank[i]]=i, only for sequential ordering */
)
{
/*
* Main user-call for ordering.
* Input:
* zz, a Zoltan structure with appropriate function pointers set.
* gids, a list of global ids or enough space to store such a list
* lids, a list of local ids or enough space to store such a list
* Output:
* num_gid_entries
* num_lid_entries
* gids, a list of global ids (filled in if empty on entry)
* lids, a list of local ids (filled in if empty on entry)
* rank, rank[i] is the global rank of gids[i]
* Return values:
* Zoltan error code.
*/
char *yo = "Zoltan_Order";
int ierr;
double start_time, end_time;
double order_time[2] = {0.0,0.0};
char msg[256];
int comm[2],gcomm[2];
ZOLTAN_ORDER_FN *Order_fn;
struct Zoltan_Order_Options opt;
int * vtxdist = NULL;
ZOLTAN_ID_PTR local_gids=NULL, lids=NULL;
int local_num_obj;
int *local_rank = NULL, *local_iperm=NULL;
struct Zoltan_DD_Struct *dd = NULL;
ZOLTAN_TRACE_ENTER(zz, yo);
if (zz->Proc == zz->Debug_Proc && zz->Debug_Level >= ZOLTAN_DEBUG_PARAMS)
Zoltan_Print_Key_Params(zz);
start_time = Zoltan_Time(zz->Timer);
/*
* Compute Max number of array entries per ID over all processors.
* This is a sanity-maintaining step; we don't want different
* processors to have different values for these numbers.
*/
comm[0] = zz->Num_GID;
comm[1] = zz->Num_LID;
MPI_Allreduce(comm, gcomm, 2, MPI_INT, MPI_MAX, zz->Communicator);
zz->Num_GID = gcomm[0];
if (num_gid_entries != zz->Num_GID) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "num_gid_entries doesn't have the good value");
return (ZOLTAN_FATAL);
}
zz->Order.nbr_objects = num_obj;
zz->Order.rank = rank;
zz->Order.iperm = iperm;
zz->Order.gids = gids;
zz->Order.lids = lids;
zz->Order.start = NULL;
zz->Order.ancestor = NULL;
zz->Order.leaves = NULL;
zz->Order.nbr_leaves = 0;
zz->Order.nbr_blocks = 0;
/*
* Return if this processor is not in the Zoltan structure's
* communicator.
*/
if (ZOLTAN_PROC_NOT_IN_COMMUNICATOR(zz)) {
ZOLTAN_TRACE_EXIT(zz, yo);
return (ZOLTAN_OK);
}
/*
* Get ordering options from parameter list.
*/
/* Set default parameter values */
strncpy(opt.method, "PARMETIS", MAX_PARAM_STRING_LEN);
#ifdef HAVE_MPI
strncpy(opt.order_type, "DIST", MAX_PARAM_STRING_LEN);
#else
strncpy(opt.order_type, "SERIAL", MAX_PARAM_STRING_LEN);
#endif /* HAVE_MPI */
opt.use_order_info = 0;
opt.start_index = 0;
opt.reorder = 0;
Zoltan_Bind_Param(Order_params, "ORDER_METHOD", (void *) opt.method);
Zoltan_Bind_Param(Order_params, "ORDER_TYPE", (void *) opt.order_type);
Zoltan_Bind_Param(Order_params, "ORDER_START_INDEX", (void *) &opt.start_index);
Zoltan_Bind_Param(Order_params, "REORDER", (void *) &opt.reorder);
Zoltan_Bind_Param(Order_params, "USE_ORDER_INFO", (void *) &opt.use_order_info);
Zoltan_Assign_Param_Vals(zz->Params, Order_params, zz->Debug_Level,
zz->Proc, zz->Debug_Proc);
zz->Order.start_index = opt.start_index;
/*
* Check that the user has allocated space for the return args.
*/
if (!(gids && rank)) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Input argument is NULL. Please allocate all required arrays before calling this routine.");
ZOLTAN_TRACE_EXIT(zz, yo);
return (ZOLTAN_FATAL);
}
/*
* Find the selected method.
*/
if (!strcmp(opt.method, "NONE")) {
if (zz->Proc == zz->Debug_Proc && zz->Debug_Level >= ZOLTAN_DEBUG_PARAMS)
ZOLTAN_PRINT_WARN(zz->Proc, yo, "Ordering method selected == NONE; no ordering performed\n");
ZOLTAN_TRACE_EXIT(zz, yo);
return (ZOLTAN_WARN);
}
#ifdef ZOLTAN_PARMETIS
else if (!strcmp(opt.method, "NODEND")) {
Order_fn = Zoltan_ParMetis_Order;
}
else if (!strcmp(opt.method, "METIS")) {
Order_fn = Zoltan_ParMetis_Order;
/* Set ORDER_METHOD to NODEND and ORDER_TYPE to LOCAL */
strcpy(opt.method, "NODEND");
strcpy(opt.order_type, "LOCAL");
}
else if (!strcmp(opt.method, "PARMETIS")) {
Order_fn = Zoltan_ParMetis_Order;
/* Set ORDER_METHOD to NODEND and ORDER_TYPE to LOCAL */
strcpy(opt.method, "NODEND");
strcpy(opt.order_type, "GLOBAL");
}
#endif /* ZOLTAN_PARMETIS */
#ifdef ZOLTAN_SCOTCH
else if (!strcmp(opt.method, "SCOTCH")) {
Order_fn = Zoltan_Scotch_Order;
/* Set ORDER_METHOD to NODEND and ORDER_TYPE to LOCAL */
strcpy(opt.method, "NODEND");
/* strcpy(opt.order_type, "GLOBAL"); */
}
#endif /* ZOLTAN_SCOTCH */
else {
fprintf(stderr, "%s\n", opt.method);
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Unknown ordering method");
ZOLTAN_TRACE_EXIT(zz, yo);
return (ZOLTAN_FATAL);
}
if (!strcmp(opt.order_type, "GLOBAL"))
strcpy (opt.order_type, "DIST");
if (!strcmp(opt.order_type, "LOCAL"))
strcpy (opt.order_type, "SERIAL");
strcpy(zz->Order.order_type, opt.order_type);
/*
* Construct the heterogenous machine description.
*/
ierr = Zoltan_Build_Machine_Desc(zz);
if (ierr == ZOLTAN_FATAL) {
ZOLTAN_TRACE_EXIT(zz, yo);
return (ierr);
}
ZOLTAN_TRACE_DETAIL(zz, yo, "Done machine description");
/*
* Call the actual ordering function.
* Compute gid according to the local graph.
*/
if (zz->Get_Num_Obj != NULL) {
local_num_obj = zz->Get_Num_Obj(zz->Get_Num_Obj_Data, &ierr);
if (ierr != ZOLTAN_OK && ierr != ZOLTAN_WARN) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Error returned from Get_Num_Obj.");
return (ierr);
}
}
else {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Must register ZOLTAN_NUM_OBJ_FN.");
return (ZOLTAN_FATAL);
}
local_gids = ZOLTAN_MALLOC_GID_ARRAY(zz, local_num_obj);
local_rank = (int*) ZOLTAN_MALLOC(local_num_obj*sizeof(int));
local_iperm = (int*) ZOLTAN_MALLOC(local_num_obj*sizeof(int));
lids = ZOLTAN_MALLOC_LID_ARRAY(zz, local_num_obj);
ierr = (*Order_fn)(zz, local_num_obj, local_gids, lids, local_rank, local_iperm, &opt);
ZOLTAN_FREE(&lids);
if (ierr) {
sprintf(msg, "Ordering routine returned error code %d.", ierr);
if (ierr == ZOLTAN_WARN) {
ZOLTAN_PRINT_WARN(zz->Proc, yo, msg);
} else {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, msg);
Zoltan_Multifree(__FILE__, __LINE__, 3,
&local_gids, &local_rank, &local_iperm);
ZOLTAN_TRACE_EXIT(zz, yo);
return (ierr);
}
}
ZOLTAN_TRACE_DETAIL(zz, yo, "Done ordering");
/* Compute inverse permutation if necessary */
if ((!(opt.return_args & RETURN_RANK) && (rank != NULL))
|| (!(opt.return_args & RETURN_IPERM) && (iperm != NULL))) {
ierr = Zoltan_Get_Distribution(zz, &vtxdist);
if (ierr) {
/* Error */
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Error returned from Zoltan_Get_Distribution.\n");
return (ierr);
}
if (!(opt.return_args & RETURN_RANK) && (rank != NULL)) {
/* Compute rank from iperm */
ZOLTAN_TRACE_DETAIL(zz, yo, "Inverting permutation");
Zoltan_Inverse_Perm(zz, local_iperm, local_rank, vtxdist, opt.order_type, opt.start_index);
}
else if (!(opt.return_args & RETURN_IPERM) && (iperm != NULL)) {
/* Compute iperm from rank */
ZOLTAN_TRACE_DETAIL(zz, yo, "Inverting permutation");
Zoltan_Inverse_Perm(zz, local_rank, local_iperm, vtxdist, opt.order_type, opt.start_index);
}
ZOLTAN_FREE(&vtxdist);
}
ZOLTAN_TRACE_DETAIL(zz, yo, "Done Invert Permutation");
/* TODO: Use directly the "graph" structure to avoid to duplicate things. */
/* I store : GNO, rank, iperm */
ierr = Zoltan_DD_Create (&dd, zz->Communicator, zz->Num_GID, (local_rank==NULL)?0:1, (local_iperm==NULL)?0:1, local_num_obj, 0);
/* Hope a linear assignment will help a little */
Zoltan_DD_Set_Neighbor_Hash_Fn1(dd, local_num_obj);
/* Associate all the data with our xGNO */
Zoltan_DD_Update (dd, local_gids, (ZOLTAN_ID_PTR)local_rank, (ZOLTAN_ID_PTR) local_iperm, NULL, local_num_obj);
ZOLTAN_FREE(&local_gids);
ZOLTAN_FREE(&local_rank);
ZOLTAN_FREE(&local_iperm);
Zoltan_DD_Find (dd, gids, (ZOLTAN_ID_PTR)rank, (ZOLTAN_ID_PTR)iperm, NULL,
num_obj, NULL);
Zoltan_DD_Destroy(&dd);
ZOLTAN_TRACE_DETAIL(zz, yo, "Done Registering results");
end_time = Zoltan_Time(zz->Timer);
order_time[0] = end_time - start_time;
if (zz->Debug_Level >= ZOLTAN_DEBUG_LIST) {
int i;
Zoltan_Print_Sync_Start(zz->Communicator, TRUE);
printf("ZOLTAN: rank for ordering on Proc %d\n", zz->Proc);
for (i = 0; i < num_obj; i++) {
printf("GID = ");
ZOLTAN_PRINT_GID(zz, &(gids[i*(num_gid_entries)]));
printf(", rank = %3d\n", rank[i]);
}
printf("\n");
Zoltan_Print_Sync_End(zz->Communicator, TRUE);
}
/* Print timing info */
if (zz->Debug_Level >= ZOLTAN_DEBUG_ZTIME) {
if (zz->Proc == zz->Debug_Proc) {
printf("ZOLTAN Times: \n");
}
Zoltan_Print_Stats (zz->Communicator, zz->Debug_Proc, order_time[0],
"ZOLTAN Balance: ");
}
ZOLTAN_TRACE_EXIT(zz, yo);
if (ierr)
return (ierr);
else
return (ZOLTAN_OK);
}
int Zoltan_Order (
struct Zoltan_Struct *zz,
int num_gid_entries,
int num_obj,
ZOLTAN_ID_PTR gids,
ZOLTAN_ID_PTR permuted_global_ids
)
{
/*
* Main user-call for ordering.
* Input:
* zz, a Zoltan structure with appropriate function pointers set.
* gids, a list of global ids.
* num_gid_entries
* Output:
* permuted_global_ids
* Return values:
* Zoltan error code.
*/
char *yo = "Zoltan_Order";
int ierr;
double start_time, end_time;
double order_time[2] = {0.0,0.0};
char msg[256];
int comm[2],gcomm[2];
ZOLTAN_ORDER_FN *Order_fn;
struct Zoltan_Order_Options opt;
ZOLTAN_ID_PTR local_gids=NULL, lids=NULL;
int local_num_obj;
int *local_rank = NULL;
struct Zoltan_DD_Struct *dd = NULL;
ZOLTAN_TRACE_ENTER(zz, yo);
if (zz->Proc == zz->Debug_Proc && zz->Debug_Level >= ZOLTAN_DEBUG_PARAMS)
Zoltan_Print_Key_Params(zz);
start_time = Zoltan_Time(zz->Timer);
/*
* Compute Max number of array entries per ID over all processors.
* This is a sanity-maintaining step; we don't want different
* processors to have different values for these numbers.
*/
comm[0] = zz->Num_GID;
comm[1] = zz->Num_LID;
MPI_Allreduce(comm, gcomm, 2, MPI_INT, MPI_MAX, zz->Communicator);
zz->Num_GID = gcomm[0];
if (num_gid_entries != zz->Num_GID) {
char msg[253];
sprintf(msg, "num_gid_entries=%d is not equal to parameter setting "
"NUM_GID_ENTRIES=%d\n", num_gid_entries, zz->Num_GID);
ZOLTAN_PRINT_ERROR(zz->Proc, yo, msg);
return (ZOLTAN_FATAL);
}
zz->Order.nbr_objects = num_obj;
zz->Order.start = NULL;
zz->Order.ancestor = NULL;
zz->Order.leaves = NULL;
zz->Order.nbr_leaves = 0;
zz->Order.nbr_blocks = 0;
/*
* Return if this processor is not in the Zoltan structure's
* communicator.
*/
if (ZOLTAN_PROC_NOT_IN_COMMUNICATOR(zz)) {
ZOLTAN_TRACE_EXIT(zz, yo);
return (ZOLTAN_OK);
}
/*
* Get ordering options from parameter list.
*/
/* Set default parameter values */
#ifdef HAVE_MPI
strncpy(opt.method, "PARMETIS", MAX_PARAM_STRING_LEN);
strcpy(zz->Order.order_type, "GLOBAL");
#else
strncpy(opt.method, "METIS", MAX_PARAM_STRING_LEN);
strcpy(zz->Order.order_type, "LOCAL");
#endif /* HAVE_MPI */
opt.use_order_info = 0;
opt.start_index = 0;
Zoltan_Bind_Param(Order_params, "ORDER_METHOD", (void *) opt.method);
Zoltan_Bind_Param(Order_params, "USE_ORDER_INFO", (void *) &opt.use_order_info);
Zoltan_Assign_Param_Vals(zz->Params, Order_params, zz->Debug_Level,
zz->Proc, zz->Debug_Proc);
/*
* Check that the user has allocated space for the return args.
*/
if (num_obj && !(gids && permuted_global_ids)) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Input argument is NULL. Please allocate all required arrays before calling this routine.");
ZOLTAN_TRACE_EXIT(zz, yo);
return (ZOLTAN_FATAL);
}
/*
* Find the selected method.
*/
if (!strcmp(opt.method, "NONE")) {
if (zz->Proc == zz->Debug_Proc && zz->Debug_Level >= ZOLTAN_DEBUG_PARAMS)
ZOLTAN_PRINT_WARN(zz->Proc, yo, "Ordering method selected == NONE; no ordering performed\n");
ZOLTAN_TRACE_EXIT(zz, yo);
return (ZOLTAN_WARN);
}
else if (!strcmp(opt.method, "LOCAL_HSFC"))
{
Order_fn = Zoltan_LocalHSFC_Order;
strcpy(zz->Order.order_type, "LOCAL"); /*MMW, not sure about this*/
}
#ifdef ZOLTAN_PARMETIS
else if (!strcmp(opt.method, "METIS")) {
Order_fn = Zoltan_ParMetis_Order;
strcpy(zz->Order.order_type, "LOCAL");
}
else if (!strcmp(opt.method, "PARMETIS")) {
Order_fn = Zoltan_ParMetis_Order;
strcpy(zz->Order.order_type, "GLOBAL");
}
#endif /* ZOLTAN_PARMETIS */
#ifdef ZOLTAN_SCOTCH
else if (!strcmp(opt.method, "SCOTCH")) {
Order_fn = Zoltan_Scotch_Order;
strcpy(zz->Order.order_type, "LOCAL");
}
else if (!strcmp(opt.method, "PTSCOTCH")) {
Order_fn = Zoltan_Scotch_Order;
strcpy(zz->Order.order_type, "GLOBAL");
}
#endif /* ZOLTAN_SCOTCH */
#ifdef ZOLTAN_HUND
else if (!strcasecmp(opt.method, "HUND")) {
ierr = Zoltan_HUND(zz, num_gid_entries, num_obj, gids, permuted_global_ids, NULL);
goto End;
}
#endif /* ZOLTAN_HUND */
else {
fprintf(stderr, "%s\n", opt.method);
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Unknown ordering method");
ZOLTAN_TRACE_EXIT(zz, yo);
return (ZOLTAN_FATAL);
}
/* TODO : Ask why useful ! */
/*
* Construct the heterogenous machine description.
*/
ierr = Zoltan_Build_Machine_Desc(zz);
if (ierr == ZOLTAN_FATAL) {
ZOLTAN_TRACE_EXIT(zz, yo);
return (ierr);
}
ZOLTAN_TRACE_DETAIL(zz, yo, "Done machine description");
/************************************
* Check for required query function
************************************/
if (zz->Get_Num_Obj != NULL) {
local_num_obj = zz->Get_Num_Obj(zz->Get_Num_Obj_Data, &ierr);
if (ierr != ZOLTAN_OK && ierr != ZOLTAN_WARN) {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Error returned from Get_Num_Obj.");
return (ierr);
}
}
else {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, "Must register ZOLTAN_NUM_OBJ_FN.");
return (ZOLTAN_FATAL);
}
/* TODO allocate all this stuff with the graph */
local_gids = ZOLTAN_MALLOC_GID_ARRAY(zz, local_num_obj);
local_rank = (int*) ZOLTAN_MALLOC(local_num_obj*sizeof(int));
lids = ZOLTAN_MALLOC_LID_ARRAY(zz, local_num_obj);
/*
* Call the actual ordering function.
* Compute gid according to the local graph.
*/
ierr = (*Order_fn)(zz, local_num_obj, local_gids, lids, local_rank, NULL, &opt);
ZOLTAN_FREE(&lids);
if (ierr) {
sprintf(msg, "Ordering routine returned error code %d.", ierr);
if (ierr == ZOLTAN_WARN) {
ZOLTAN_PRINT_WARN(zz->Proc, yo, msg);
} else {
ZOLTAN_PRINT_ERROR(zz->Proc, yo, msg);
Zoltan_Multifree(__FILE__, __LINE__, 2,
&local_gids, &local_rank);
ZOLTAN_TRACE_EXIT(zz, yo);
return (ierr);
}
}
ZOLTAN_TRACE_DETAIL(zz, yo, "Done ordering");
/* TODO: Use directly the "graph" structure to avoid to duplicate things. */
/* TODO: At this time, I consider rank == permuted_global_ids */
/* I store : GNO, rank, permuted GID */
/* MMW: perhaps don't ever use graph here since we need to support geometric orderings, otherwise need if/else */
ierr = Zoltan_DD_Create (&dd, zz->Communicator, zz->Num_GID, (local_rank==NULL)?0:1, 0, local_num_obj, 0);
/* Hope a linear assignment will help a little */
if (local_num_obj)
Zoltan_DD_Set_Neighbor_Hash_Fn1(dd, local_num_obj);
/* Associate all the data with our xGNO */
Zoltan_DD_Update (dd, local_gids, (ZOLTAN_ID_PTR)local_rank, NULL, NULL, local_num_obj);
ZOLTAN_FREE(&local_gids);
ZOLTAN_FREE(&local_rank);
Zoltan_DD_Find (dd, gids, (ZOLTAN_ID_PTR)permuted_global_ids, NULL, NULL,
num_obj, NULL);
Zoltan_DD_Destroy(&dd);
ZOLTAN_TRACE_DETAIL(zz, yo, "Done Registering results");
end_time = Zoltan_Time(zz->Timer);
order_time[0] = end_time - start_time;
if (zz->Debug_Level >= ZOLTAN_DEBUG_LIST) {
int i;
Zoltan_Print_Sync_Start(zz->Communicator, TRUE);
printf("ZOLTAN: rank for ordering on Proc %d\n", zz->Proc);
for (i = 0; i < num_obj; i++) {
printf("GID = ");
ZOLTAN_PRINT_GID(zz, &(gids[i*(num_gid_entries)]));
printf(", rank = %3d\n", permuted_global_ids[i]);
}
printf("\n");
Zoltan_Print_Sync_End(zz->Communicator, TRUE);
}
/* Print timing info */
if (zz->Debug_Level >= ZOLTAN_DEBUG_ZTIME) {
if (zz->Proc == zz->Debug_Proc) {
printf("ZOLTAN Times: \n");
}
Zoltan_Print_Stats (zz->Communicator, zz->Debug_Proc, order_time[0],
"ZOLTAN Balance: ");
}
#ifdef ZOLTAN_HUND
End:
#endif /*ZOLTAN_HUND*/
ZOLTAN_TRACE_EXIT(zz, yo);
return (ierr);
}