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| author | David Shah <davey1576@gmail.com> | 2018-08-08 19:23:47 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-08-08 19:23:47 +0200 |
| commit | cd4e761bb799ca99f02d3aa177961af28a93f2d8 (patch) | |
| tree | a6424fb4ea70b868efb1375bb9cf3db992e3059c /common/placer1.cc | |
| parent | 2390f7f59c05870845da349536cb384964cdb874 (diff) | |
| parent | 751335977fe7d69b23f6110ec4938408ec7a7ff8 (diff) | |
| download | nextpnr-cd4e761bb799ca99f02d3aa177961af28a93f2d8.tar.gz nextpnr-cd4e761bb799ca99f02d3aa177961af28a93f2d8.tar.bz2 nextpnr-cd4e761bb799ca99f02d3aa177961af28a93f2d8.zip | |
Merge pull request #44 from YosysHQ/improve_timing_spec
Speed up budget allocator using topographical ordering and update cell timing API
Diffstat (limited to 'common/placer1.cc')
| -rw-r--r-- | common/placer1.cc | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/common/placer1.cc b/common/placer1.cc index 1d00e77a..51ef271a 100644 --- a/common/placer1.cc +++ b/common/placer1.cc @@ -236,7 +236,10 @@ class SAPlacer temp = post_legalise_temp; diameter *= post_legalise_dia_scale; ctx->shuffle(autoplaced); - assign_budget(ctx); + + // Legalisation is a big change so force a slack redistribution here + if (ctx->slack_redist_iter > 0) + assign_budget(ctx, true /* quiet */); } else if (ctx->slack_redist_iter > 0 && iter % ctx->slack_redist_iter == 0) { assign_budget(ctx, true /* quiet */); } |