Add raw setup slack analysis to placement quench#1501

Merged

vaughnbetz merged 28 commits intoverilog-to-routing:masterfrom

Bill-hbrhbr:QuenchSlackDraft

Sep 9, 2020

Commits on Jul 23, 2020

Added interface for mapping between CLB pins and setup slacks. Refactored PlacerCriticalities, and created PlacerSetupSlacks, so that they can choose between doing incremental V.S. from scratch upd…
Bill-hbrhbr
committed
Refactored criticalities update in place.cpp and added setup slacks update. Added checks to see if the updates need to be done from scratch or can be done incrementally
Bill-hbrhbr
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Fixe up format and compilation errors
Bill-hbrhbr
committed

Commits on Aug 6, 2020

Commits on Aug 11, 2020

Added single move reversion for setup slack analysis(rather than taking placement snapshots). Currently experiencing consistency failures. Also updated slack analysis cost function: comparing the w…
Bill-hbrhbr
committed

Commits on Aug 14, 2020

Commits on Aug 20, 2020

Added vpr option --place_quench_metric to turn on/off setup slack analysis during placement quench. Possible options are: auto, timing_cost, setup_slack.
Bill-hbrhbr
committed

Commits on Aug 28, 2020

Commits on Sep 1, 2020

Commits on Sep 4, 2020

Fixed slack cost routine bug and updated golden results. Added code documentation for options --place_algorithm and --place_quench_algorithm (same as the documentation on developer's page.
Bill-hbrhbr
committed

Commits on Sep 6, 2020

Code review update: enhance more documentations. Added function level description for three routines in place.cpp: find_affected_sink_pins(), commit_td_cost(), invalidate_affected_connection_delays().
Bill-hbrhbr
committed

Commits on Sep 8, 2020