DPL negotiation default algorithm#4186
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openroad-ci wants to merge 22 commits intoThe-OpenROAD-Project:masterfrom
Open
DPL negotiation default algorithm#4186openroad-ci wants to merge 22 commits intoThe-OpenROAD-Project:masterfrom
openroad-ci wants to merge 22 commits intoThe-OpenROAD-Project:masterfrom
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Signed-off-by: Augusto Berndt <augusto.berndt@precisioninno.com>
replace USE_NEGOTIATION for DPL_USE_OLD_DIAMOND, since the OR submodule now does not have -use_negotiation anymore for dpl, and has -use_old_diamond, the default is negotiation legalizer Signed-off-by: Augusto Berndt <augusto.berndt@precisioninno.com>
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Code Review
This pull request updates the OpenROAD subproject, reduces core utilization for several designs, and renames the USE_NEGOTIATION variable to DPL_USE_OLD_DIAMOND to reflect that the negotiation legalizer is now the default. Feedback suggests removing leftover debug code in global_route.tcl and adding the stages field to the new variable definition in the configuration files for improved documentation and consistency.
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| #set_debug_level DPL negotiation 1 | ||
| dpl::detailed_placement_debug | ||
| log_cmd detailed_placement {*}$dpl_args |
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These lines appear to be leftover debug code. Commented-out code and explicit calls to dpl::detailed_placement_debug should be removed to keep the scripts clean and consistent with other stages (like CTS) that also perform detailed placement.
log_cmd detailed_placement {*}$dpl_args
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| "DPL_USE_OLD_DIAMOND": { | ||
| "default": 0, | ||
| "description": "Enable using negotiation legalizer for detailed placement.\n" | ||
| "description": "Use the former diamond search legalizer for detailed placement instead of the default negotiation legalizer.\n" | ||
| }, |
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It is recommended to include the stages field for the new DPL_USE_OLD_DIAMOND variable to document where it is used (place, cts, and grt) and to maintain consistency with other variables in this file.
"DPL_USE_OLD_DIAMOND": {
"default": 0,
"description": "Use the former diamond search legalizer for detailed placement instead of the default negotiation legalizer.\n",
"stages": [
"place",
"cts",
"grt"
]
},Signed-off-by: Augusto Berndt <augusto.berndt@precisioninno.com>
Signed-off-by: Augusto Berndt <augusto.berndt@precisioninno.com>
===================================================== make update_ok for ibex (gf180)... ===================================================== designs/gf180/ibex/rules-base.json updates: | Metric | Old | New | Type | | ------ | --- | --- | ---- | | finish__timing__setup__tns | -2.22 | -4.76 | Failing | | finish__design__instance__area | 764974 | 764104 | Tighten | ===================================================== make update_ok for gcd (asap7)... ===================================================== designs/asap7/gcd/rules-base.json updates: | Metric | Old | New | Type | | ------ | --- | --- | ---- | | globalroute__timing__setup__tns | -1790.0 | -2050.0 | Failing | | detailedroute__route__wirelength | 1324 | 1947 | Failing | | finish__timing__setup__tns | -1570.0 | -1820.0 | Failing | ===================================================== make update_ok for riscv32i-mock-sram (asap7)... ===================================================== designs/asap7/riscv32i-mock-sram/rules-base.json updates: | Metric | Old | New | Type | | ------ | --- | --- | ---- | | globalroute__timing__setup__ws | -56.5 | -47.5 | Tighten | | globalroute__timing__setup__tns | -407.0 | -190.0 | Tighten | | finish__timing__setup__tns | -298.0 | -1330.0 | Failing | ===================================================== make update_ok for ibex (asap7)... ===================================================== designs/asap7/ibex/rules-base.json updates: | Metric | Old | New | Type | | ------ | --- | --- | ---- | | cts__timing__setup__tns | -1630.0 | -13700.0 | Failing | | finish__design__instance__area | 2816 | 2810 | Tighten | ===================================================== make update_ok for uart (asap7)... ===================================================== designs/asap7/uart/rules-base.json updates: | Metric | Old | New | Type | | ------ | --- | --- | ---- | | detailedroute__route__wirelength | 1673 | 1973 | Failing | | finish__timing__setup__ws | -52.4 | -47.3 | Tighten | | finish__timing__setup__tns | -1320.0 | -1210.0 | Tighten | ===================================================== make update_ok for gcd-ccs (asap7)... ===================================================== designs/asap7/gcd-ccs/rules-base.json updates: | Metric | Old | New | Type | | ------ | --- | --- | ---- | | cts__timing__setup__ws | -63.5 | -63.4 | Tighten | | cts__timing__setup__tns | -773.0 | -768.0 | Tighten | | globalroute__timing__setup__ws | -63.5 | -63.4 | Tighten | | globalroute__timing__setup__tns | -771.0 | -766.0 | Tighten | | finish__timing__setup__tns | -1270.0 | -1430.0 | Failing | ===================================================== make update_ok for chameleon (sky130hd)... ===================================================== designs/sky130hd/chameleon/rules-base.json updates: | Metric | Old | New | Type | | ------ | --- | --- | ---- | | cts__timing__setup__ws | -0.962 | -0.945 | Tighten | | cts__timing__setup__tns | -6.72 | -8.5 | Failing | | globalroute__antenna_diodes_count | 196 | 194 | Tighten | | globalroute__timing__setup__ws | -0.944 | -0.909 | Tighten | | globalroute__timing__setup__tns | -5.91 | -5.68 | Tighten | | finish__timing__setup__ws | -0.916 | -0.906 | Tighten | | finish__timing__setup__tns | -7.59 | -6.54 | Tighten | ===================================================== make update_ok for gcd (sky130hd)... ===================================================== designs/sky130hd/gcd/rules-base.json updates: | Metric | Old | New | Type | | ------ | --- | --- | ---- | | cts__timing__setup__tns | -68.8 | -69.9 | Failing | | globalroute__timing__setup__ws | -1.9 | -2.25 | Failing | | globalroute__timing__setup__tns | -88.8 | -93.7 | Failing | | detailedroute__route__wirelength | 14932 | 17828 | Failing | | finish__timing__setup__ws | -1.74 | -1.86 | Failing | | finish__timing__setup__tns | -81.2 | -79.8 | Tighten | ===================================================== make update_ok for microwatt (sky130hd)... ===================================================== designs/sky130hd/microwatt/rules-base.json updates: | Metric | Old | New | Type | | ------ | --- | --- | ---- | | cts__timing__setup__tns | -345.0 | -335.0 | Tighten | | globalroute__antenna_diodes_count | 1426 | 1421 | Tighten | | globalroute__timing__setup__tns | -322.0 | -288.0 | Tighten | | detailedroute__antenna__violating__nets | 5 | 1 | Tighten | | detailedroute__antenna_diodes_count | 1451 | 1477 | Failing | | finish__timing__setup__tns | -158.0 | -140.0 | Tighten | | finish__design__instance__area | 5572106 | 5571256 | Tighten | ===================================================== make update_ok for aes (sky130hd)... ===================================================== designs/sky130hd/aes/rules-base.json updates: | Metric | Old | New | Type | | ------ | --- | --- | ---- | | globalroute__timing__setup__ws | -1.3 | -0.523 | Tighten | | globalroute__timing__setup__tns | -9.57 | -12.5 | Failing | | finish__timing__setup__ws | -1.17 | -0.461 | Tighten | | finish__timing__setup__tns | -2.8 | -4.58 | Failing | ===================================================== make update_ok for gcd (sky130hs)... ===================================================== designs/sky130hs/gcd/rules-base.json updates: | Metric | Old | New | Type | | ------ | --- | --- | ---- | | cts__timing__setup__tns | -11.4 | -12.3 | Failing | | globalroute__timing__setup__tns | -19.2 | -20.3 | Failing | | detailedroute__route__wirelength | 14238 | 16488 | Failing | | finish__timing__setup__tns | -15.8 | -17.2 | Failing | ===================================================== make update_ok for aes (sky130hs)... ===================================================== designs/sky130hs/aes/rules-base.json updates: | Metric | Old | New | Type | | ------ | --- | --- | ---- | | placeopt__design__instance__area | 160499 | 159595 | Tighten | | placeopt__design__instance__count__stdcell | 19517 | 19233 | Tighten | | globalroute__timing__setup__tns | -1.92 | -3.16 | Failing | | finish__design__instance__area | 176489 | 174570 | Tighten | ===================================================== make update_ok for swerv (nangate45)... ===================================================== designs/nangate45/swerv/rules-base.json updates: | Metric | Old | New | Type | | ------ | --- | --- | ---- | | synth__design__instance__area__stdcell | 178043.59 | 166000.0 | Tighten | | placeopt__design__instance__area | 179149 | 177861 | Tighten | | placeopt__design__instance__count__stdcell | 99342 | 98391 | Tighten | | cts__design__instance__count__setup_buffer | 8638 | 8556 | Tighten | | cts__design__instance__count__hold_buffer | 8638 | 8556 | Tighten | | cts__timing__setup__tns | -363.0 | -398.0 | Failing | | globalroute__antenna_diodes_count | 102 | 101 | Tighten | | globalroute__timing__setup__tns | -420.0 | -498.0 | Failing | | detailedroute__route__wirelength | 2659376 | 2435536 | Tighten | | finish__timing__setup__tns | -396.0 | -438.0 | Failing | ===================================================== make update_ok for bp_fe_top (nangate45)... ===================================================== designs/nangate45/bp_fe_top/rules-base.json updates: | Metric | Old | New | Type | | ------ | --- | --- | ---- | | finish__timing__setup__ws | -0.15 | -0.14 | Tighten | | finish__timing__setup__tns | -1.58 | -1.95 | Failing | ===================================================== make update_ok for jpeg (nangate45)... ===================================================== designs/nangate45/jpeg/rules-base.json updates: | Metric | Old | New | Type | | ------ | --- | --- | ---- | | synth__design__instance__area__stdcell | 102000.0 | 99800.0 | Tighten | | placeopt__design__instance__count__stdcell | 68509 | 68139 | Tighten | | cts__design__instance__count__setup_buffer | 5957 | 5925 | Tighten | | cts__design__instance__count__hold_buffer | 5957 | 5925 | Tighten | | cts__timing__setup__tns | -54.6 | -43.0 | Tighten | | globalroute__timing__setup__tns | -66.5 | -52.7 | Tighten | | detailedroute__route__wirelength | 631144 | 767282 | Failing | | finish__timing__setup__tns | -53.3 | -46.7 | Tighten | ===================================================== make update_ok for tinyRocket (nangate45)... ===================================================== designs/nangate45/tinyRocket/rules-base.json updates: | Metric | Old | New | Type | | ------ | --- | --- | ---- | | cts__timing__setup__tns | -30.0 | -37.4 | Failing | | globalroute__timing__setup__tns | -50.3 | -64.7 | Failing | | finish__timing__setup__tns | -42.8 | -57.6 | Failing | ===================================================== make update_ok for mempool_group (nangate45)... ===================================================== designs/nangate45/mempool_group/rules-base.json updates: | Metric | Old | New | Type | | ------ | --- | --- | ---- | | cts__timing__setup__tns | -12000.0 | -12100.0 | Failing | | globalroute__timing__setup__tns | -14000.0 | -12100.0 | Tighten | ===================================================== make update_ok for ariane133 (nangate45)... ===================================================== designs/nangate45/ariane133/rules-base.json updates: | Metric | Old | New | Type | | ------ | --- | --- | ---- | | placeopt__design__instance__area | 827643 | 827361 | Tighten | | cts__timing__setup__tns | -502.0 | -556.0 | Failing | | globalroute__timing__setup__tns | -556.0 | -642.0 | Failing | | finish__timing__setup__tns | -549.0 | -604.0 | Failing | | finish__design__instance__area | 837050 | 836289 | Tighten | ===================================================== make update_ok for spi (ihp-sg13g2)... ===================================================== designs/ihp-sg13g2/spi/rules-base.json updates: | Metric | Old | New | Type | | ------ | --- | --- | ---- | | detailedroute__route__wirelength | 3972 | 4623 | Failing | ===================================================== make update_ok for i2c-gpio-expander (ihp-sg13g2)... ===================================================== designs/ihp-sg13g2/i2c-gpio-expander/rules-base.json updates: | Metric | Old | New | Type | | ------ | --- | --- | ---- | | detailedroute__route__wirelength | 37489 | 44583 | Failing | ===================================================== make update_ok for ibex (ihp-sg13g2)... ===================================================== designs/ihp-sg13g2/ibex/rules-base.json updates: | Metric | Old | New | Type | | ------ | --- | --- | ---- | | synth__design__instance__area__stdcell | 280000.0 | 278000.0 | Tighten | | placeopt__design__instance__count__stdcell | 20659 | 20256 | Tighten | | detailedroute__route__wirelength | 895142 | 1137972 | Failing | Large percentage changes in failing metrics (>50%): - ibex (asap7) cts__timing__setup__tns 740.49% (-1630.0 → -13700.0) - riscv32i-mock-sram (asap7) finish__timing__setup__tns 346.31% (-298.0 → -1330.0) - ibex (gf180) finish__timing__setup__tns 114.41% (-2.22 → -4.76) - aes (sky130hs) globalroute__timing__setup__tns 64.58% (-1.92 → -3.16) - aes (sky130hd) finish__timing__setup__tns 63.57% (-2.8 → -4.58) Large percentage improvements in tighten metrics (>50%): - microwatt (sky130hd) detailedroute__antenna__violating__nets -80.00% (5 → 1) - aes (sky130hd) finish__timing__setup__ws -60.60% (-1.17 → -0.461) - aes (sky130hd) globalroute__timing__setup__ws -59.77% (-1.3 → -0.523) - riscv32i-mock-sram (asap7) globalroute__timing__setup__tns -53.32% (-407.0 → -190.0) Signed-off-by: Augusto Berndt <augusto.berndt@precisioninno.com>
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Contributor
|
All green. Ignore the updates from the bot, they were wrong, I did the updates manually |
Member
Please update the description removing the old wrong reports, and if possible add the reports from your manual update. |
Contributor
|
I don't seem to be able to edit the bot's initial message. I added the updates on the commit message. I am repeating them here: |
Member
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These two failures seem quite large, specially the one in IMO it's worth to understand what placement changes caused these large degradations. |
Contributor
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I loaded asap7/ibex during CTS for both negotiation and with master. and with negotiation: Rolling over the list of paths I noticed with negotiation we get some paths with different required times, and they also have higher skew. Notice rolling to the end of the list for negotiation: While with master all the paths in the list have 0 skew. Also showing the last item on the list. |
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This PR updates metrics for OR PR The-OpenROAD-Project/OpenROAD#10226 to make new negotiation legalizer algorithm into the default one.
This PR also replaces USE_NEGOTIATION for DPL_USE_OLD_DIAMOND, since the OR submodule now does not have
-use_negotiationanymore for dpl, and has-use_old_diamond.I also modified the utilization of a few failing designs.