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timing_opt: Reduce search diameter to 2

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Signed-off-by: David Shah <dave@ds0.me>
This commit is contained in:
David Shah 2018-12-02 16:43:11 +00:00
parent 745960fa85
commit 2b84b33cd6
1 changed files with 1 additions and 1 deletions
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2
common/timing_opt.cc
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@ -466,7 +466,7 @@ class TimingOptimiser
}
IdString last_cell;
const int d = 5; // FIXME: how to best determine d
const int d = 2; // FIXME: how to best determine d
for (auto cell : path_cells) {
// FIXME: when should we allow swapping due to a lack of candidates
find_neighbours(ctx->cells[cell].get(), last_cell, d, false);