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| author | Eddie Hung <eddieh@ece.ubc.ca> | 2018-08-08 07:58:01 -0700 |
|---|---|---|
| committer | Eddie Hung <eddieh@ece.ubc.ca> | 2018-08-08 07:58:01 -0700 |
| commit | d21e5a4b10c2eb57ae13e4622aa436339a96bcb9 (patch) | |
| tree | 4e2e0d62114d4066190bae85331d61d718987de2 /common | |
| parent | acd2a92b0353242200ef89a2107c1ac5b3903094 (diff) | |
| download | nextpnr-d21e5a4b10c2eb57ae13e4622aa436339a96bcb9.tar.gz nextpnr-d21e5a4b10c2eb57ae13e4622aa436339a96bcb9.tar.bz2 nextpnr-d21e5a4b10c2eb57ae13e4622aa436339a96bcb9.zip | |
Disable assign_budget() after placement legalisation, unless slack redist
Diffstat (limited to 'common')
| -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 */); } |