diff options
Diffstat (limited to 'common/router2.cc')
| -rw-r--r-- | common/router2.cc | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/common/router2.cc b/common/router2.cc index b48857d7..59763f86 100644 --- a/common/router2.cc +++ b/common/router2.cc @@ -1244,6 +1244,37 @@ struct Router2 route_net(tcs.at(N), fail, false); } +//#define ROUTER2_STATISTICS + + void dump_statistics() + { +#ifdef ROUTER2_STATISTICS + int total_wires = int(flat_wires.size()); + int have_hist_cong = 0; + int have_any_bound = 0, have_1_bound = 0, have_2_bound = 0, have_gte3_bound = 0; + for (auto &wire : flat_wires) { + int bound = wire.bound_nets.size(); + if (bound != 0) + ++have_any_bound; + if (bound == 1) + ++have_1_bound; + else if (bound == 2) + ++have_2_bound; + else if (bound >= 3) + ++have_gte3_bound; + if (wire.hist_cong_cost > 1.0) + ++have_hist_cong; + } + log_info("Out of %d wires:\n", total_wires); + log_info(" %d (%.02f%%) have any bound nets\n", have_any_bound, (100.0 * have_any_bound) / total_wires); + log_info(" %d (%.02f%%) have 1 bound net\n", have_1_bound, (100.0 * have_1_bound) / total_wires); + log_info(" %d (%.02f%%) have 2 bound nets\n", have_2_bound, (100.0 * have_2_bound) / total_wires); + log_info(" %d (%.02f%%) have >2 bound nets\n", have_gte3_bound, (100.0 * have_gte3_bound) / total_wires); + log_info(" %d (%.02f%%) have historical congestion\n", have_hist_cong, + (100.0 * have_hist_cong) / total_wires); +#endif + } + void operator()() { log_info("Running router2...\n"); @@ -1301,6 +1332,8 @@ struct Router2 write_heatmap(cong_map, true); } #endif + dump_statistics(); + if (overused_wires == 0) { // Try and actually bind nextpnr Arch API wires bind_and_check_all(); |