Merge pull request #3294 from verilog-to-routing/feature-equilibrium-init-t-default

[Place][InitT] Changed Default Init T Estimator to Equilibrium

Author: AlexandreSinger

doc/src/vpr/command_line_usage.rst

@@ -850,7 +850,7 @@ If any of init_t, exit_t or alpha_t is specified, the user schedule, with a fixe
    * ``cost_variance``: Estimates the initial temperature using the variance of cost after a set of trial swaps. The initial temperature is set to a value proportional to the variance.
    * ``equilibrium``: Estimates the initial temperature by trying to predict the equilibrium temperature for the initial placement (i.e. the temperature that would result in no change in cost).
 
-    **Default** ``cost_variance``
+    **Default** ``equilibrium``
 
 .. option:: --init_t <float>
 

vpr/src/base/read_options.cpp

@@ -2323,7 +2323,7 @@ argparse::ArgumentParser create_arg_parser(const std::string& prog_name, t_optio
             "\tequilibrium: Estimates the initial temperature by trying to "
             "predict the equilibrium temperature for the initial placement "
             "(i.e. the temperature that would result in no change in cost).")
-        .default_value("cost_variance")
+        .default_value("equilibrium")
         .show_in(argparse::ShowIn::HELP_ONLY);
 
     place_grp.add_argument(args.PlaceInitT, "--init_t")

vtr_flow/tasks/regression_tests/vtr_reg_multiclock/func_multiclock/blanket/config/golden_results.txt

@@ -1,3 +1,3 @@
- arch	  circuit	  script_params	  vtr_flow_elapsed_time	  vtr_max_mem_stage	  vtr_max_mem	  error	  odin_synth_time	  max_odin_mem	  parmys_synth_time	  max_parmys_mem	  abc_depth	  abc_synth_time	  abc_cec_time	  abc_sec_time	  max_abc_mem	  ace_time	  max_ace_mem	  num_clb	  num_io	  num_memories	  num_mult	  vpr_status	  vpr_revision	  vpr_build_info	  vpr_compiler	  vpr_compiled	  hostname	  rundir	  max_vpr_mem	  num_primary_inputs	  num_primary_outputs	  num_pre_packed_nets	  num_pre_packed_blocks	  num_netlist_clocks	  num_post_packed_nets	  num_post_packed_blocks	  device_width	  device_height	  device_grid_tiles	  device_limiting_resources	  device_name	  pack_mem	  pack_time	  placed_wirelength_est	  total_swap	  accepted_swap	  rejected_swap	  aborted_swap	  place_mem	  place_time	  place_quench_time	  placed_CPD_est	  placed_setup_TNS_est	  placed_setup_WNS_est	  placed_geomean_nonvirtual_intradomain_critical_path_delay_est	  place_delay_matrix_lookup_time	  place_quench_timing_analysis_time	  place_quench_sta_time	  place_total_timing_analysis_time	  place_total_sta_time	  ap_mem	  ap_time	  ap_full_legalizer_mem	  ap_full_legalizer_time	  min_chan_width	  routed_wirelength	  min_chan_width_route_success_iteration	  logic_block_area_total	  logic_block_area_used	  min_chan_width_routing_area_total	  min_chan_width_routing_area_per_tile	  min_chan_width_route_time	  min_chan_width_total_timing_analysis_time	  min_chan_width_total_sta_time	  crit_path_num_rr_graph_nodes	  crit_path_num_rr_graph_edges	  crit_path_collapsed_nodes	  crit_path_routed_wirelength	  crit_path_route_success_iteration	  crit_path_total_nets_routed	  crit_path_total_connections_routed	  crit_path_total_heap_pushes	  crit_path_total_heap_pops	  critical_path_delay	  geomean_nonvirtual_intradomain_critical_path_delay	  setup_TNS	  setup_WNS	  hold_TNS	  hold_WNS	  crit_path_routing_area_total	  crit_path_routing_area_per_tile	  router_lookahead_computation_time	  crit_path_route_time	  crit_path_create_rr_graph_time	  crit_path_create_intra_cluster_rr_graph_time	  crit_path_tile_lookahead_computation_time	  crit_path_router_lookahead_computation_time	  crit_path_total_timing_analysis_time	  crit_path_total_sta_time	 
- k6_frac_N10_mem32K_40nm.xml	  multiclock_output_and_latch.v	  common	  0.91	  vpr	  62.53 MiB	  	  -1	  -1	  0.10	  16916	  1	  0.05	  -1	  -1	  32024	  -1	  -1	  2	  6	  0	  0	  success	  v8.0.0-11925-ga544f5fea-dirty	  release IPO VTR_ASSERT_LEVEL=2	  GNU 9.4.0 on Linux-4.15.0-213-generic x86_64	  2025-01-14T21:35:49	  betzgrp-wintermute.eecg.utoronto.ca	  /home/elgamma8/research/release/vtr-verilog-to-routing	  64032	  6	  1	  13	  14	  2	  8	  9	  4	  4	  16	  clb	  auto	  23.8 MiB	  0.01	  22	  27	  6	  15	  6	  62.5 MiB	  0.00	  0.00	  1.02737	  -3.61973	  -1.02737	  0.545	  0.01	  3.8829e-05	  2.8382e-05	  0.000261465	  0.000217889	  -1	  -1	  -1	  -1	  20	  22	  8	  107788	  107788	  10441.3	  652.579	  0.01	  0.00235757	  0.00212728	  742	  1670	  -1	  21	  1	  6	  6	  146	  96	  1.40641	  0.545	  -4.38899	  -1.40641	  0	  0	  13748.8	  859.301	  0.00	  0.00	  0.00	  -1	  -1	  0.00	  0.00170712	  0.00164334	 
- k6_frac_N10_mem32K_40nm.xml	  multiclock_reader_writer.v	  common	  0.93	  vpr	  62.57 MiB	  	  -1	  -1	  0.14	  17260	  1	  0.06	  -1	  -1	  31980	  -1	  -1	  2	  3	  0	  0	  success	  v8.0.0-11925-ga544f5fea-dirty	  release IPO VTR_ASSERT_LEVEL=2	  GNU 9.4.0 on Linux-4.15.0-213-generic x86_64	  2025-01-14T21:35:49	  betzgrp-wintermute.eecg.utoronto.ca	  /home/elgamma8/research/release/vtr-verilog-to-routing	  64076	  3	  -1	  23	  23	  2	  3	  5	  4	  4	  16	  clb	  auto	  23.8 MiB	  0.01	  3	  12	  2	  3	  7	  62.6 MiB	  0.00	  0.00	  0.620297	  -7.93119	  -0.620297	  0.545	  0.01	  6.0445e-05	  5.1078e-05	  0.000540631	  0.00048682	  -1	  -1	  -1	  -1	  8	  1	  1	  107788	  107788	  4888.88	  305.555	  0.01	  0.00313926	  0.00293123	  622	  902	  -1	  1	  1	  1	  1	  8	  6	  0.54641	  0.545	  -7.63564	  -0.54641	  0	  0	  5552.67	  347.042	  0.00	  0.00	  0.00	  -1	  -1	  0.00	  0.00237872	  0.0022794	 
+ arch	  circuit	  script_params	  vtr_flow_elapsed_time	  vtr_max_mem_stage	  vtr_max_mem	  error	  odin_synth_time	  max_odin_mem	  parmys_synth_time	  max_parmys_mem	  abc_depth	  abc_synth_time	  abc_cec_time	  abc_sec_time	  max_abc_mem	  ace_time	  max_ace_mem	  num_clb	  num_io	  num_memories	  num_mult	  vpr_status	  vpr_revision	  vpr_build_info	  vpr_compiler	  vpr_compiled	  hostname	  rundir	  max_vpr_mem	  num_primary_inputs	  num_primary_outputs	  num_pre_packed_nets	  num_pre_packed_blocks	  num_netlist_clocks	  num_post_packed_nets	  num_post_packed_blocks	  device_width	  device_height	  device_grid_tiles	  device_limiting_resources	  device_name	  pack_mem	  pack_time	  initial_placed_wirelength_est	  placed_wirelength_est	  total_swap	  accepted_swap	  rejected_swap	  aborted_swap	  place_mem	  place_time	  place_quench_time	  initial_placed_CPD_est	  placed_CPD_est	  placed_setup_TNS_est	  placed_setup_WNS_est	  placed_geomean_nonvirtual_intradomain_critical_path_delay_est	  place_delay_matrix_lookup_time	  place_quench_timing_analysis_time	  place_quench_sta_time	  place_total_timing_analysis_time	  place_total_sta_time	  ap_mem	  ap_time	  ap_full_legalizer_mem	  ap_full_legalizer_time	  min_chan_width	  routed_wirelength	  min_chan_width_route_success_iteration	  logic_block_area_total	  logic_block_area_used	  min_chan_width_routing_area_total	  min_chan_width_routing_area_per_tile	  min_chan_width_route_time	  min_chan_width_total_timing_analysis_time	  min_chan_width_total_sta_time	  crit_path_num_rr_graph_nodes	  crit_path_num_rr_graph_edges	  crit_path_collapsed_nodes	  crit_path_routed_wirelength	  crit_path_route_success_iteration	  crit_path_total_nets_routed	  crit_path_total_connections_routed	  crit_path_total_heap_pushes	  crit_path_total_heap_pops	  critical_path_delay	  geomean_nonvirtual_intradomain_critical_path_delay	  setup_TNS	  setup_WNS	  hold_TNS	  hold_WNS	  crit_path_routing_area_total	  crit_path_routing_area_per_tile	  router_lookahead_computation_time	  crit_path_route_time	  crit_path_create_rr_graph_time	  crit_path_create_intra_cluster_rr_graph_time	  crit_path_tile_lookahead_computation_time	  crit_path_router_lookahead_computation_time	  crit_path_total_timing_analysis_time	  crit_path_total_sta_time	 
+ k6_frac_N10_mem32K_40nm.xml	  multiclock_output_and_latch.v	  common	  0.47	  vpr	  67.04 MiB	  	  -1	  -1	  0.08	  27956	  1	  0.03	  -1	  -1	  35908	  -1	  -1	  2	  6	  0	  0	  success	  v8.0.0-14013-ge1496c441d-dirty	  release VTR_ASSERT_LEVEL=3	  GNU 13.3.0 on Linux-6.8.0-63-generic x86_64	  2025-10-06T15:51:15	  srivatsan-Precision-Tower-5810	  /home/alex/vtr-verilog-to-routing/vtr_flow/tasks/regression_tests/vtr_reg_multiclock/func_multiclock	  68648	  6	  1	  13	  14	  2	  8	  9	  4	  4	  16	  clb	  auto	  28.4 MiB	  0.00	  23	  18	  450	  161	  197	  92	  67.0 MiB	  0.00	  0.00	  1.02737	  1.02737	  -3.59667	  -1.02737	  0.545	  0.01	  2.2386e-05	  1.7505e-05	  0.00141611	  0.00109159	  -1	  -1	  -1	  -1	  20	  11	  11	  107788	  107788	  10441.3	  652.579	  0.01	  0.00277003	  0.00227007	  742	  1670	  -1	  13	  3	  10	  10	  137	  80	  1.2939	  0.545	  -4.03651	  -1.2939	  0	  0	  13748.8	  859.301	  0.00	  0.00	  0.00	  -1	  -1	  0.00	  0.00106682	  0.000989623	 
+ k6_frac_N10_mem32K_40nm.xml	  multiclock_reader_writer.v	  common	  0.51	  vpr	  66.91 MiB	  	  -1	  -1	  0.09	  28592	  1	  0.04	  -1	  -1	  35576	  -1	  -1	  2	  3	  0	  0	  success	  v8.0.0-14013-ge1496c441d-dirty	  release VTR_ASSERT_LEVEL=3	  GNU 13.3.0 on Linux-6.8.0-63-generic x86_64	  2025-10-06T15:51:15	  srivatsan-Precision-Tower-5810	  /home/alex/vtr-verilog-to-routing/vtr_flow/tasks/regression_tests/vtr_reg_multiclock/func_multiclock	  68520	  3	  -1	  23	  23	  2	  3	  5	  4	  4	  16	  clb	  auto	  28.3 MiB	  0.01	  5	  3	  12	  4	  2	  6	  66.9 MiB	  0.00	  0.00	  0.620233	  0.620297	  -7.93119	  -0.620297	  0.545	  0.01	  6.0765e-05	  5.1182e-05	  0.000423486	  0.000375079	  -1	  -1	  -1	  -1	  8	  1	  1	  107788	  107788	  4888.88	  305.555	  0.01	  0.00215853	  0.00198452	  622	  902	  -1	  1	  1	  1	  1	  8	  6	  0.54641	  0.545	  -7.63564	  -0.54641	  0	  0	  5552.67	  347.042	  0.00	  0.00	  0.00	  -1	  -1	  0.00	  0.00156675	  0.00148493	 

vtr_flow/tasks/regression_tests/vtr_reg_multiclock/func_multiclock/iterative/config/golden_results.txt

@@ -1,3 +1,3 @@
- arch	  circuit	  script_params	  vtr_flow_elapsed_time	  vtr_max_mem_stage	  vtr_max_mem	  error	  odin_synth_time	  max_odin_mem	  parmys_synth_time	  max_parmys_mem	  abc_depth	  abc_synth_time	  abc_cec_time	  abc_sec_time	  max_abc_mem	  ace_time	  max_ace_mem	  num_clb	  num_io	  num_memories	  num_mult	  vpr_status	  vpr_revision	  vpr_build_info	  vpr_compiler	  vpr_compiled	  hostname	  rundir	  max_vpr_mem	  num_primary_inputs	  num_primary_outputs	  num_pre_packed_nets	  num_pre_packed_blocks	  num_netlist_clocks	  num_post_packed_nets	  num_post_packed_blocks	  device_width	  device_height	  device_grid_tiles	  device_limiting_resources	  device_name	  pack_mem	  pack_time	  placed_wirelength_est	  total_swap	  accepted_swap	  rejected_swap	  aborted_swap	  place_mem	  place_time	  place_quench_time	  placed_CPD_est	  placed_setup_TNS_est	  placed_setup_WNS_est	  placed_geomean_nonvirtual_intradomain_critical_path_delay_est	  place_delay_matrix_lookup_time	  place_quench_timing_analysis_time	  place_quench_sta_time	  place_total_timing_analysis_time	  place_total_sta_time	  ap_mem	  ap_time	  ap_full_legalizer_mem	  ap_full_legalizer_time	  min_chan_width	  routed_wirelength	  min_chan_width_route_success_iteration	  logic_block_area_total	  logic_block_area_used	  min_chan_width_routing_area_total	  min_chan_width_routing_area_per_tile	  min_chan_width_route_time	  min_chan_width_total_timing_analysis_time	  min_chan_width_total_sta_time	  crit_path_num_rr_graph_nodes	  crit_path_num_rr_graph_edges	  crit_path_collapsed_nodes	  crit_path_routed_wirelength	  crit_path_route_success_iteration	  crit_path_total_nets_routed	  crit_path_total_connections_routed	  crit_path_total_heap_pushes	  crit_path_total_heap_pops	  critical_path_delay	  geomean_nonvirtual_intradomain_critical_path_delay	  setup_TNS	  setup_WNS	  hold_TNS	  hold_WNS	  crit_path_routing_area_total	  crit_path_routing_area_per_tile	  router_lookahead_computation_time	  crit_path_route_time	  crit_path_create_rr_graph_time	  crit_path_create_intra_cluster_rr_graph_time	  crit_path_tile_lookahead_computation_time	  crit_path_router_lookahead_computation_time	  crit_path_total_timing_analysis_time	  crit_path_total_sta_time	 
- k6_frac_N10_mem32K_40nm.xml	  multiclock_output_and_latch.v	  common	  2.12	  vpr	  61.70 MiB	  	  -1	  -1	  0.11	  16536	  1	  0.08	  -1	  -1	  31596	  -1	  -1	  2	  6	  0	  0	  success	  v8.0.0-11925-ga544f5fea-dirty	  release IPO VTR_ASSERT_LEVEL=2	  GNU 9.4.0 on Linux-4.15.0-213-generic x86_64	  2025-01-14T21:35:49	  betzgrp-wintermute.eecg.utoronto.ca	  /home/elgamma8/research/release/vtr-verilog-to-routing	  63184	  6	  1	  13	  14	  2	  8	  9	  4	  4	  16	  clb	  auto	  23.2 MiB	  0.01	  22	  27	  6	  15	  6	  61.7 MiB	  0.00	  0.00	  1.02737	  -3.61973	  -1.02737	  0.545	  0.01	  3.8582e-05	  2.7966e-05	  0.000277936	  0.000219445	  -1	  -1	  -1	  -1	  20	  22	  8	  107788	  107788	  10441.3	  652.579	  0.02	  0.00248443	  0.00222718	  742	  1670	  -1	  21	  1	  6	  6	  146	  96	  1.40641	  0.545	  -4.38899	  -1.40641	  0	  0	  13748.8	  859.301	  0.00	  0.00	  0.00	  -1	  -1	  0.00	  0.00178059	  0.00171145	 
- k6_frac_N10_mem32K_40nm.xml	  multiclock_reader_writer.v	  common	  2.12	  vpr	  61.63 MiB	  	  -1	  -1	  0.15	  16580	  1	  0.06	  -1	  -1	  31648	  -1	  -1	  1	  2	  0	  0	  success	  v8.0.0-11925-ga544f5fea-dirty	  release IPO VTR_ASSERT_LEVEL=2	  GNU 9.4.0 on Linux-4.15.0-213-generic x86_64	  2025-01-14T21:35:49	  betzgrp-wintermute.eecg.utoronto.ca	  /home/elgamma8/research/release/vtr-verilog-to-routing	  63112	  2	  -1	  16	  16	  1	  2	  3	  3	  3	  9	  -1	  auto	  23.2 MiB	  0.01	  3	  6	  4	  0	  2	  61.6 MiB	  0.00	  0.00	  0.545	  -3.815	  -0.545	  0.545	  0.00	  4.1349e-05	  3.4027e-05	  0.000423997	  0.000380122	  -1	  -1	  -1	  -1	  2	  1	  1	  53894	  53894	  1178.84	  130.982	  0.00	  0.00258339	  0.00244324	  283	  309	  -1	  1	  1	  1	  1	  8	  6	  0.551715	  0.551715	  -3.84186	  -0.551715	  0	  0	  1178.84	  130.982	  0.00	  0.00	  0.00	  -1	  -1	  0.00	  0.00225406	  0.00217221	 
+ arch	  circuit	  script_params	  vtr_flow_elapsed_time	  vtr_max_mem_stage	  vtr_max_mem	  error	  odin_synth_time	  max_odin_mem	  parmys_synth_time	  max_parmys_mem	  abc_depth	  abc_synth_time	  abc_cec_time	  abc_sec_time	  max_abc_mem	  ace_time	  max_ace_mem	  num_clb	  num_io	  num_memories	  num_mult	  vpr_status	  vpr_revision	  vpr_build_info	  vpr_compiler	  vpr_compiled	  hostname	  rundir	  max_vpr_mem	  num_primary_inputs	  num_primary_outputs	  num_pre_packed_nets	  num_pre_packed_blocks	  num_netlist_clocks	  num_post_packed_nets	  num_post_packed_blocks	  device_width	  device_height	  device_grid_tiles	  device_limiting_resources	  device_name	  pack_mem	  pack_time	  initial_placed_wirelength_est	  placed_wirelength_est	  total_swap	  accepted_swap	  rejected_swap	  aborted_swap	  place_mem	  place_time	  place_quench_time	  initial_placed_CPD_est	  placed_CPD_est	  placed_setup_TNS_est	  placed_setup_WNS_est	  placed_geomean_nonvirtual_intradomain_critical_path_delay_est	  place_delay_matrix_lookup_time	  place_quench_timing_analysis_time	  place_quench_sta_time	  place_total_timing_analysis_time	  place_total_sta_time	  ap_mem	  ap_time	  ap_full_legalizer_mem	  ap_full_legalizer_time	  min_chan_width	  routed_wirelength	  min_chan_width_route_success_iteration	  logic_block_area_total	  logic_block_area_used	  min_chan_width_routing_area_total	  min_chan_width_routing_area_per_tile	  min_chan_width_route_time	  min_chan_width_total_timing_analysis_time	  min_chan_width_total_sta_time	  crit_path_num_rr_graph_nodes	  crit_path_num_rr_graph_edges	  crit_path_collapsed_nodes	  crit_path_routed_wirelength	  crit_path_route_success_iteration	  crit_path_total_nets_routed	  crit_path_total_connections_routed	  crit_path_total_heap_pushes	  crit_path_total_heap_pops	  critical_path_delay	  geomean_nonvirtual_intradomain_critical_path_delay	  setup_TNS	  setup_WNS	  hold_TNS	  hold_WNS	  crit_path_routing_area_total	  crit_path_routing_area_per_tile	  router_lookahead_computation_time	  crit_path_route_time	  crit_path_create_rr_graph_time	  crit_path_create_intra_cluster_rr_graph_time	  crit_path_tile_lookahead_computation_time	  crit_path_router_lookahead_computation_time	  crit_path_total_timing_analysis_time	  crit_path_total_sta_time	 
+ k6_frac_N10_mem32K_40nm.xml	  multiclock_output_and_latch.v	  common	  0.56	  vpr	  66.72 MiB	  	  -1	  -1	  0.09	  27956	  1	  0.04	  -1	  -1	  35668	  -1	  -1	  2	  6	  0	  0	  success	  v8.0.0-14013-ge1496c441d-dirty	  release VTR_ASSERT_LEVEL=3	  GNU 13.3.0 on Linux-6.8.0-63-generic x86_64	  2025-10-06T15:51:15	  srivatsan-Precision-Tower-5810	  /home/alex/vtr-verilog-to-routing/vtr_flow/tasks/regression_tests/vtr_reg_multiclock/func_multiclock	  68324	  6	  1	  13	  14	  2	  8	  9	  4	  4	  16	  clb	  auto	  28.1 MiB	  0.00	  23	  18	  450	  161	  197	  92	  66.7 MiB	  0.00	  0.00	  1.02737	  1.02737	  -3.59667	  -1.02737	  0.545	  0.01	  2.2666e-05	  1.781e-05	  0.00197092	  0.00153227	  -1	  -1	  -1	  -1	  20	  11	  11	  107788	  107788	  10441.3	  652.579	  0.01	  0.00365711	  0.00291454	  742	  1670	  -1	  13	  3	  10	  10	  137	  80	  1.2939	  0.545	  -4.03651	  -1.2939	  0	  0	  13748.8	  859.301	  0.00	  0.00	  0.00	  -1	  -1	  0.00	  0.00105744	  0.000982198	 
+ k6_frac_N10_mem32K_40nm.xml	  multiclock_reader_writer.v	  common	  0.59	  vpr	  66.92 MiB	  	  -1	  -1	  0.10	  28208	  1	  0.04	  -1	  -1	  35676	  -1	  -1	  1	  2	  0	  0	  success	  v8.0.0-14013-ge1496c441d-dirty	  release VTR_ASSERT_LEVEL=3	  GNU 13.3.0 on Linux-6.8.0-63-generic x86_64	  2025-10-06T15:51:15	  srivatsan-Precision-Tower-5810	  /home/alex/vtr-verilog-to-routing/vtr_flow/tasks/regression_tests/vtr_reg_multiclock/func_multiclock	  68524	  2	  -1	  16	  16	  1	  2	  3	  3	  3	  9	  -1	  auto	  28.4 MiB	  0.01	  3	  3	  6	  4	  0	  2	  66.9 MiB	  0.00	  0.00	  0.603526	  0.603526	  -4.0491	  -0.603526	  0.603526	  0.00	  3.8014e-05	  3.1187e-05	  0.000340609	  0.000305195	  -1	  -1	  -1	  -1	  2	  1	  1	  53894	  53894	  1178.84	  130.982	  0.00	  0.00168803	  0.00155817	  283	  309	  -1	  1	  1	  1	  1	  8	  6	  0.551715	  0.551715	  -3.84186	  -0.551715	  0	  0	  1178.84	  130.982	  0.00	  0.00	  0.00	  -1	  -1	  0.00	  0.00165916	  0.00159042