diff options
Diffstat (limited to 'common/placer1.cc')
-rw-r--r-- | common/placer1.cc | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/common/placer1.cc b/common/placer1.cc index ee7225b5..c677a22a 100644 --- a/common/placer1.cc +++ b/common/placer1.cc @@ -152,6 +152,7 @@ class SAPlacer } int n_no_progress = 0; + wirelen_t min_metric = curr_metric; double avg_metric = curr_metric; temp = 10000; @@ -177,6 +178,11 @@ class SAPlacer } } + if (curr_metric < min_metric) { + min_metric = curr_metric; + improved = true; + } + // Heuristic to improve placement on the 8k if (improved) n_no_progress = 0; @@ -230,6 +236,8 @@ class SAPlacer diameter *= post_legalise_dia_scale; ctx->shuffle(autoplaced); assign_budget(ctx); + } else { + assign_budget(ctx, true /* quiet */); } // Recalculate total metric entirely to avoid rounding errors @@ -264,6 +272,7 @@ class SAPlacer } } } + timing_analysis(ctx, true /* print_fmax */); ctx->unlock(); return true; } @@ -379,8 +388,6 @@ class SAPlacer // SA acceptance criterea if (delta < 0 || (temp > 1e-6 && (ctx->rng() / float(0x3fffffff)) <= std::exp(-delta / temp))) { n_accept++; - if (delta < 2) - improved = true; } else { if (other != IdString()) ctx->unbindBel(oldBel); |