* @brief Optimal reductions and helper functions.
* @date 28.12.2009
* @author Sebastian Buchwald
- * @version $Id$
*/
#include "config.h"
#include "error.h"
#include "bucket.h"
-#if KAPS_DUMP
+#if KAPS_DUMP
#include "html_dumper.h"
#endif
#include "kaps.h"
#include "timing.h"
pbqp_edge_t **edge_bucket;
-pbqp_edge_t **rm_bucket;
+static pbqp_edge_t **rm_bucket;
pbqp_node_t **node_buckets[4];
pbqp_node_t **reduced_bucket = NULL;
pbqp_node_t *merged_node = NULL;
unsigned node_index;
unsigned node_len;
- assert(pbqp);
node_len = pbqp->num_nodes;
#if KAPS_TIMING
unsigned src_index;
unsigned new_infinity = 0;
- assert(edge);
-
src_node = edge->src;
tgt_node = edge->tgt;
- assert(src_node);
- assert(tgt_node);
src_vec = src_node->costs;
tgt_vec = tgt_node->costs;
- assert(src_vec);
- assert(tgt_vec);
src_len = src_vec->len;
tgt_len = tgt_vec->len;
assert(tgt_len > 0);
mat = edge->costs;
- assert(mat);
/* Normalize towards source node. */
for (src_index = 0; src_index < src_len; ++src_index) {
unsigned tgt_index;
unsigned new_infinity = 0;
- assert(edge);
-
src_node = edge->src;
tgt_node = edge->tgt;
- assert(src_node);
- assert(tgt_node);
src_vec = src_node->costs;
tgt_vec = tgt_node->costs;
- assert(src_vec);
- assert(tgt_vec);
src_len = src_vec->len;
tgt_len = tgt_vec->len;
assert(tgt_len > 0);
mat = edge->costs;
- assert(mat);
/* Normalize towards target node. */
for (tgt_index = 0; tgt_index < tgt_len; ++tgt_index) {
unsigned *mapping;
unsigned src_len;
unsigned tgt_len;
- unsigned src_index;
unsigned tgt_index;
unsigned edge_index;
unsigned edge_len;
- assert(pbqp);
- assert(edge);
-
src_node = edge->src;
tgt_node = edge->tgt;
- assert(src_node);
- assert(tgt_node);
src_vec = src_node->costs;
tgt_vec = tgt_node->costs;
- assert(src_vec);
- assert(tgt_vec);
src_len = src_vec->len;
tgt_len = tgt_vec->len;
assert(tgt_len > 1);
mat = edge->costs;
- assert(mat);
mapping = NEW_ARR_F(unsigned, tgt_len);
/* Check that each column has at most one zero entry. */
for (tgt_index = 0; tgt_index < tgt_len; ++tgt_index) {
unsigned onlyOneZero = 0;
+ unsigned src_index;
if (tgt_vec->entries[tgt_index].data == INF_COSTS)
continue;
pbqp->num_rm++;
#endif
-#if KAPS_DUMP
+#if KAPS_DUMP
if (pbqp->dump_file) {
char txt[100];
sprintf(txt, "Merging n%d into n%d", src_node->index, tgt_node->index);
- dump_section(pbqp->dump_file, 3, txt);
+ pbqp_dump_section(pbqp->dump_file, 3, txt);
}
#endif
vector_t *other_vec;
unsigned other_len;
unsigned other_index;
- unsigned tgt_index;
assert(old_edge);
-
if (old_edge == edge)
continue;
old_matrix = old_edge->costs;
- assert(old_matrix);
if (old_edge->tgt == src_node) {
other_node = old_edge->src;
other_node = old_edge->tgt;
other_len = old_matrix->cols;
}
- assert(other_node);
other_vec = other_node->costs;
new_matrix = pbqp_matrix_alloc(pbqp, tgt_len, other_len);
unsigned src_len;
unsigned tgt_len;
unsigned src_index;
- unsigned tgt_index;
unsigned edge_index;
unsigned edge_len;
- assert(pbqp);
- assert(edge);
-
src_node = edge->src;
tgt_node = edge->tgt;
- assert(src_node);
- assert(tgt_node);
src_vec = src_node->costs;
tgt_vec = tgt_node->costs;
- assert(src_vec);
- assert(tgt_vec);
src_len = src_vec->len;
tgt_len = tgt_vec->len;
assert(tgt_len > 1);
mat = edge->costs;
- assert(mat);
mapping = NEW_ARR_F(unsigned, src_len);
/* Check that each row has at most one zero entry. */
for (src_index = 0; src_index < src_len; ++src_index) {
unsigned onlyOneZero = 0;
+ unsigned tgt_index;
if (src_vec->entries[src_index].data == INF_COSTS)
continue;
pbqp->num_rm++;
#endif
-#if KAPS_DUMP
+#if KAPS_DUMP
if (pbqp->dump_file) {
char txt[100];
sprintf(txt, "Merging n%d into n%d", tgt_node->index, src_node->index);
- dump_section(pbqp->dump_file, 3, txt);
+ pbqp_dump_section(pbqp->dump_file, 3, txt);
}
#endif
vector_t *other_vec;
unsigned other_len;
unsigned other_index;
- unsigned src_index;
assert(old_edge);
continue;
old_matrix = old_edge->costs;
- assert(old_matrix);
if (old_edge->tgt == tgt_node) {
other_node = old_edge->src;
other_node = old_edge->tgt;
other_len = old_matrix->cols;
}
- assert(other_node);
other_vec = other_node->costs;
new_matrix = pbqp_matrix_alloc(pbqp, src_len, other_len);
unsigned edge_index;
unsigned edge_len;
- assert(node);
- assert(pbqp);
-
edges = node->edges;
edge_len = pbqp_node_get_degree(node);
/* ALAP: Merge neighbors into given node. */
while(edge_bucket_get_length(rm_bucket) > 0) {
pbqp_edge_t *edge = edge_bucket_pop(&rm_bucket);
- assert(edge);
/* If the edge is not deleted: Try a merge. */
if (edge->src == node)
int src_len;
int tgt_len;
- assert(pbqp);
- assert(edge);
-
(void) pbqp;
src_node = edge->src;
if (is_deleted(edge))
return;
-#if KAPS_DUMP
+#if KAPS_DUMP
if (pbqp->dump_file) {
char txt[100];
sprintf(txt, "Simplification of Edge n%d-n%d", src_node->index, tgt_node->index);
- dump_section(pbqp->dump_file, 3, txt);
+ pbqp_dump_section(pbqp->dump_file, 3, txt);
}
#endif
src_vec = src_node->costs;
tgt_vec = tgt_node->costs;
- assert(src_vec);
- assert(tgt_vec);
src_len = src_vec->len;
tgt_len = tgt_vec->len;
assert(tgt_len > 0);
mat = edge->costs;
- assert(mat);
-#if KAPS_DUMP
+#if KAPS_DUMP
if (pbqp->dump_file) {
fputs("Input:<br>\n", pbqp->dump_file);
- dump_simplifyedge(pbqp, edge);
+ pbqp_dump_simplifyedge(pbqp, edge);
}
#endif
normalize_towards_source(edge);
normalize_towards_target(edge);
-#if KAPS_DUMP
+#if KAPS_DUMP
if (pbqp->dump_file) {
fputs("<br>\nOutput:<br>\n", pbqp->dump_file);
- dump_simplifyedge(pbqp, edge);
+ pbqp_dump_simplifyedge(pbqp, edge);
}
#endif
if (pbqp_matrix_is_zero(mat, src_vec, tgt_vec)) {
-#if KAPS_DUMP
+#if KAPS_DUMP
if (pbqp->dump_file) {
fputs("edge has been eliminated<br>\n", pbqp->dump_file);
}
unsigned node_index;
unsigned node_len;
- assert(pbqp);
-
#if KAPS_TIMING
ir_timer_t *t_int_simpl = ir_timer_new();
ir_timer_start(t_int_simpl);
#endif
-#if KAPS_DUMP
+#if KAPS_DUMP
if (pbqp->dump_file) {
pbqp_dump_input(pbqp);
- dump_section(pbqp->dump_file, 1, "2. Simplification of Cost Matrices");
+ pbqp_dump_section(pbqp->dump_file, 1, "2. Simplification of Cost Matrices");
}
#endif
ir_timer_reset_and_start(t_det_solution);
#endif
-#if KAPS_DUMP
+#if KAPS_DUMP
FILE *file;
#endif
- assert(pbqp);
-
(void) pbqp;
-#if KAPS_DUMP
+#if KAPS_DUMP
file = pbqp->dump_file;
if (file) {
- dump_section(file, 1, "4. Determine Solution/Minimum");
- dump_section(file, 2, "4.1. Trivial Solution");
+ pbqp_dump_section(file, 1, "4. Determine Solution/Minimum");
+ pbqp_dump_section(file, 2, "4.1. Trivial Solution");
}
#endif
for (node_index = 0; node_index < node_len; ++node_index) {
pbqp_node_t *node = node_buckets[0][node_index];
- assert(node);
node->solution = vector_get_min_index(node->costs);
solution = pbqp_add(solution,
node->costs->entries[node->solution].data);
-#if KAPS_DUMP
+#if KAPS_DUMP
if (file) {
fprintf(file, "node n%d is set to %d<br>\n", node->index, node->solution);
- dump_node(file, node);
+ pbqp_dump_node(file, node);
}
#endif
}
-#if KAPS_DUMP
+#if KAPS_DUMP
if (file) {
- dump_section(file, 2, "Minimum");
+ pbqp_dump_section(file, 2, "Minimum");
#if KAPS_USE_UNSIGNED
fprintf(file, "Minimum is equal to %u.", solution);
#else
pbqp_matrix_t *mat;
vector_t *vec;
int is_src;
-
- assert(pbqp);
- assert(node);
-
(void) pbqp;
edge = node->edges[0];
if (is_src) {
other = edge->tgt;
- assert(other);
-
node->solution = pbqp_matrix_get_col_min_index(mat, other->solution, vec);
} else {
other = edge->src;
- assert(other);
-
node->solution = pbqp_matrix_get_row_min_index(mat, other->solution, vec);
}
-#if KAPS_DUMP
+#if KAPS_DUMP
if (pbqp->dump_file) {
fprintf(pbqp->dump_file, "node n%d is set to %d<br>\n", node->index, node->solution);
}
unsigned col_index;
unsigned row_index;
- assert(pbqp);
-
if (src_is_src) {
src_node = src_edge->tgt;
} else {
node->solution = vector_get_min_index(vec);
-#if KAPS_DUMP
+#if KAPS_DUMP
if (pbqp->dump_file) {
fprintf(pbqp->dump_file, "node n%d is set to %d<br>\n", node->index, node->solution);
}
unsigned node_index;
unsigned node_len = node_bucket_get_length(reduced_bucket);
- assert(pbqp);
-
-#if KAPS_DUMP
+#if KAPS_DUMP
if (pbqp->dump_file) {
- dump_section(pbqp->dump_file, 2, "Back Propagation");
+ pbqp_dump_section(pbqp->dump_file, 2, "Back Propagation");
}
#endif
break;
default:
panic("Only nodes with degree one or two should be in this bucket");
- break;
}
}
}
int is_src = edge->src == node;
pbqp_node_t *other_node;
- (void ) pbqp;
+ (void) pbqp;
assert(pbqp_node_get_degree(node) == 1);
if (is_src) {
other_node = edge->src;
}
-#if KAPS_DUMP
+#if KAPS_DUMP
if (pbqp->dump_file) {
char txt[100];
sprintf(txt, "RI-Reduction of Node n%d", node->index);
- dump_section(pbqp->dump_file, 2, txt);
+ pbqp_dump_section(pbqp->dump_file, 2, txt);
pbqp_dump_graph(pbqp);
fputs("<br>\nBefore reduction:<br>\n", pbqp->dump_file);
- dump_node(pbqp->dump_file, node);
- dump_node(pbqp->dump_file, other_node);
- dump_edge(pbqp->dump_file, edge);
+ pbqp_dump_node(pbqp->dump_file, node);
+ pbqp_dump_node(pbqp->dump_file, other_node);
+ pbqp_dump_edge(pbqp->dump_file, edge);
}
#endif
}
disconnect_edge(other_node, edge);
-#if KAPS_DUMP
+#if KAPS_DUMP
if (pbqp->dump_file) {
fputs("<br>\nAfter reduction:<br>\n", pbqp->dump_file);
- dump_node(pbqp->dump_file, other_node);
+ pbqp_dump_node(pbqp->dump_file, other_node);
}
#endif
pbqp_matrix_t *tgt_mat;
pbqp_node_t *src_node;
pbqp_node_t *tgt_node;
+ pbqp_edge_t *edge;
pbqp_matrix_t *mat;
vector_t *vec;
vector_t *node_vec;
unsigned col_len;
unsigned row_index;
unsigned row_len;
- unsigned node_len;
- assert(pbqp);
assert(pbqp_node_get_degree(node) == 2);
if (src_is_src) {
tgt_is_src = tgt_edge->src == node;
}
-#if KAPS_DUMP
+#if KAPS_DUMP
if (pbqp->dump_file) {
char txt[100];
sprintf(txt, "RII-Reduction of Node n%d", node->index);
- dump_section(pbqp->dump_file, 2, txt);
+ pbqp_dump_section(pbqp->dump_file, 2, txt);
pbqp_dump_graph(pbqp);
fputs("<br>\nBefore reduction:<br>\n", pbqp->dump_file);
- dump_node(pbqp->dump_file, src_node);
- dump_edge(pbqp->dump_file, src_edge);
- dump_node(pbqp->dump_file, node);
- dump_edge(pbqp->dump_file, tgt_edge);
- dump_node(pbqp->dump_file, tgt_node);
+ pbqp_dump_node(pbqp->dump_file, src_node);
+ pbqp_dump_edge(pbqp->dump_file, src_edge);
+ pbqp_dump_node(pbqp->dump_file, node);
+ pbqp_dump_edge(pbqp->dump_file, tgt_edge);
+ pbqp_dump_node(pbqp->dump_file, tgt_node);
}
#endif
row_len = src_vec->len;
col_len = tgt_vec->len;
- node_len = node_vec->len;
mat = pbqp_matrix_alloc(pbqp, row_len, col_len);
}
}
- pbqp_edge_t *edge = get_edge(pbqp, src_node->index, tgt_node->index);
+ edge = get_edge(pbqp, src_node->index, tgt_node->index);
/* Disconnect node. */
disconnect_edge(src_node, src_edge);
reorder_node_after_edge_deletion(tgt_node);
}
-#if KAPS_DUMP
+#if KAPS_DUMP
if (pbqp->dump_file) {
fputs("<br>\nAfter reduction:<br>\n", pbqp->dump_file);
- dump_edge(pbqp->dump_file, edge);
+ pbqp_dump_edge(pbqp->dump_file, edge);
}
#endif
unsigned src_index;
unsigned new_infinity = 0;
- assert(edge);
-
src_node = edge->src;
tgt_node = edge->tgt;
- assert(src_node);
- assert(tgt_node);
src_vec = src_node->costs;
tgt_vec = tgt_node->costs;
- assert(src_vec);
- assert(tgt_vec);
src_len = src_vec->len;
tgt_len = tgt_vec->len;
assert(tgt_len > 0);
mat = edge->costs;
- assert(mat);
for (src_index = 0; src_index < src_len; ++src_index) {
num elem = mat->entries[src_index * tgt_len + col_index];
static void select_row(pbqp_edge_t *edge, unsigned row_index)
{
pbqp_matrix_t *mat;
- pbqp_node_t *src_node;
pbqp_node_t *tgt_node;
vector_t *tgt_vec;
unsigned tgt_len;
unsigned tgt_index;
unsigned new_infinity = 0;
- assert(edge);
-
- src_node = edge->src;
tgt_node = edge->tgt;
- assert(tgt_node);
tgt_vec = tgt_node->costs;
- assert(tgt_vec);
tgt_len = tgt_vec->len;
assert(tgt_len > 0);
mat = edge->costs;
- assert(mat);
for (tgt_index = 0; tgt_index < tgt_len; ++tgt_index) {
num elem = mat->entries[row_index * tgt_len + tgt_index];
vector_t *node_vec;
unsigned max_degree = pbqp_node_get_degree(node);
- assert(node);
node->solution = selected_index;
node_vec = node->costs;
node_len = node_vec->len;
num min = INF_COSTS;
int is_src;
- assert(pbqp);
- assert(node);
node_vec = node->costs;
node_len = node_vec->len;
max_degree = pbqp_node_get_degree(node);