riscv
/
OpenFPGA
mirror of https://github.com/lnis-uofu/OpenFPGA.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

try to optimize the runtime of routing uniqueness detection

This commit is contained in:
tangxifan 2019-07-13 18:10:34 -06:00
parent 78578f66c5
commit aa4cd850ae
1 changed files with 11 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
vpr7_x2p/vpr/SRC/fpga_x2p/base/fpga_x2p_unique_routing.c
View File

@ -1213,17 +1213,26 @@ void sort_rr_gsb_one_chan_node_drive_rr_nodes(const RRGSB& rr_gsb,
/* Create a copy of the edges and switches of this node */
std::vector<t_rr_node*> sorted_drive_nodes;
std::vector<int> sorted_drive_switches;
std::vector<int> sorted_drive_nodes_from_node_index;
/* Ensure a clean start */
sorted_drive_nodes.clear();
sorted_drive_switches.clear();
sorted_drive_nodes_from_node_index.clear();
/* Build the vectors w.r.t. to the order of node_type and ptc_num */
for (int i_from_node = 0; i_from_node < chan_node->num_drive_rr_nodes; ++i_from_node) {
enum e_side i_from_node_side = NUM_SIDES;
int i_from_node_index = -1;
rr_gsb.get_node_side_and_index(chan_node->drive_rr_nodes[i_from_node],
IN_PORT, &i_from_node_side, &i_from_node_index);
/* check */
assert ( (NUM_SIDES != i_from_node_side) && (-1 != i_from_node_index) );
/* For blank edges: directly push_back */
if (0 == sorted_drive_nodes.size()) {
sorted_drive_nodes.push_back(chan_node->drive_rr_nodes[i_from_node]);
sorted_drive_switches.push_back(chan_node->drive_switches[i_from_node]);
sorted_drive_nodes_from_node_index.push_back(i_from_node_index);
continue;
}
@ -1241,22 +1250,9 @@ void sort_rr_gsb_one_chan_node_drive_rr_nodes(const RRGSB& rr_gsb,
* But we are pretty sure it is either IN_PORT or OUT_PORT
* So we just try and find what is valid
*/
enum e_side i_from_node_side = NUM_SIDES;
int i_from_node_index = -1;
rr_gsb.get_node_side_and_index(chan_node->drive_rr_nodes[i_from_node],
IN_PORT, &i_from_node_side, &i_from_node_index);
/* check */
if (! ( (NUM_SIDES != i_from_node_side) && (-1 != i_from_node_index) ) )
assert ( (NUM_SIDES != i_from_node_side) && (-1 != i_from_node_index) );
enum e_side j_from_node_side = NUM_SIDES;
int j_from_node_index = -1;
rr_gsb.get_node_side_and_index(sorted_drive_nodes[j_from_node],
IN_PORT, &j_from_node_side, &j_from_node_index);
/* check */
assert ( (NUM_SIDES != j_from_node_side) && (-1 != j_from_node_index) );
/* Now a lower ptc_num will win */
if ( i_from_node_index < j_from_node_index) {
if ( i_from_node_index < sorted_drive_nodes_from_node_index[j_from_node]) {
insert_pos = j_from_node;
break; /* least type should stay in the front of the vector */
}
@ -1265,6 +1261,7 @@ void sort_rr_gsb_one_chan_node_drive_rr_nodes(const RRGSB& rr_gsb,
/* We find the position, inserted to the vector */
sorted_drive_nodes.insert(sorted_drive_nodes.begin() + insert_pos, chan_node->drive_rr_nodes[i_from_node]);
sorted_drive_switches.insert(sorted_drive_switches.begin() + insert_pos, chan_node->drive_switches[i_from_node]);
sorted_drive_nodes_from_node_index.insert(sorted_drive_nodes_from_node_index.begin() + insert_pos, i_from_node_index);
}
/* Overwrite the edges and switches with sorted numbers */