diff options
| -rw-r--r-- | common/placer1.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/common/placer1.cc b/common/placer1.cc index db10b7d3..ecb61b5c 100644 --- a/common/placer1.cc +++ b/common/placer1.cc @@ -553,7 +553,7 @@ class SAPlacer (1 - lambda) * (double(moveChange.wirelen_delta) / last_wirelen_cost); n_move++; // SA acceptance criterea - if (delta < 0 || (temp > 1e-8 && (ctx->rng() / float(0x3fffffff)) <= std::exp(-delta / temp))) { + if (delta < 0 || (temp > 1e-9 && (ctx->rng() / float(0x3fffffff)) <= std::exp(-delta / (5 * temp)))) { n_accept++; if (ctx->debug) log_info("accepted chain swap %s\n", cell->name.c_str(ctx)); |