Bastian Koppelmann 7ff5121d8c base/pin_layout: Implement hash cache ...

the hash value only depends of the properties 'rect' and 'layer' so we
only compute the hash if those values are changed. Otherwise we just
return the precomputed value. This gives us a major speedup (~10x) if
the hash is used as a key in a dict.

During the grouping of pins in analyze_pins() this gives the best
improvements. For example for FreePDK45 with num_bits=8, num_words=256

Improved
**** Analyzing pins: 20.9 seconds
** Routing: 293.8 seconds
** SRAM creation: 349.8 seconds

Non-improved
**** Analyzing pins: 267.9 seconds
** Routing: 537.5 seconds
** SRAM creation: 592.9 seconds

Signed-off-by: Bastian Koppelmann <[email protected]>

2020-01-03 11:39:59 +01:00

..

base

base/pin_layout: Implement hash cache

2020-01-03 11:39:59 +01:00

bitcells

Remove some unnecessary via directions.

2019-12-19 13:54:50 -08:00

characterizer

Check nominal_corner_only in new corner creation routine

2019-11-29 14:47:02 -08:00

datasheet

Convert capital names to lower case for consistency

2019-08-21 13:45:34 -07:00

drc

Clean up and generalize layer rules.

2019-12-17 11:03:36 -08:00

example_configs

Remove old drc/lvs override name

2019-12-16 10:05:52 -08:00

gdsMill

Merge remote-tracking branch 'bkoppelmann/master' into dev

2019-12-11 08:46:52 -08:00

modules

Move write mask vias to center to avoid data pins.

2019-12-20 11:48:27 -08:00

pgates

Non-preferred via in pnand active

2019-12-20 10:36:14 -08:00

router

Add layer-purpose GDS support. Various PEP8 fixes.

2019-11-14 18:17:20 +00:00

sram

sram_base: Instantiate "dff_array" and "bank" through sram_factory

2019-12-18 17:33:50 +01:00

tests

Fix ptx active contact orientation to non-default M1 direction.

2019-12-19 12:54:10 -08:00

verify

Move DRC/LVS/PEX tools to tech file.

2019-11-29 12:01:33 -08:00

debug.py

Add layer-purpose GDS support. Various PEP8 fixes.

2019-11-14 18:17:20 +00:00

gen_stimulus.py

Remove some flake8 errors/warnings.

2019-10-02 23:26:02 +00:00

globals.py

sram_factory: Give proper priority to overrides

2019-12-19 15:58:00 +01:00

Makefile

Clean up Makefile for unit tests

2018-12-05 12:58:10 -08:00

openram.py

Only setup bitcell when running top-level OpenRAM

2019-11-26 13:54:37 -08:00

options.py

Blackbox option for DRC waivers

2019-11-29 15:50:32 -08:00

run_profile.sh

Convert pin map to a set for faster membership.

2019-04-01 15:45:44 -07:00

sram_factory.py

sram_factory: Add check for duplicate module name

2019-12-19 16:31:52 +01:00

view_profile.py

Remove some flake8 errors/warnings.

2019-10-02 23:26:02 +00:00