nvlabs/autocraft

AutoCRAFT: Layout Automation for Custom Circuits in Advanced FinFET Technologies

AutoCRAFT is a semi-automated custom layout framework to improve the productivity of analog and high-speed custom digital circuit layout implementation. AutoCRAFT has been developed and tested on x64 linux machines.

Modules Overview

AutoCRAFT
|---- Circuit
|     |---- Placement grid
|     |---- Routing grid
|     |---- Device mapping
|     |---- Primitive lib
|     |---- Region
|     |---- Cell
|     |     |---- Pin
|     |     |---- Obs (obstacle)
|     |---- Net
|     |     |---- Pin
|     |     |---- Via
|     |     |---- Wire
|     |     |---- TopoTree
|     |     |---- Routable
|     |---- Layer
|     |     |---- Metal layer
|     |     |---- Cut layer
|     |---- Cstr (Constraint)
|           |---- Placement cstr
|           |     |---- Net weighting
|           |     |---- Array
|           |     |---- Alignment (row/col)
|           |     |---- Cluster
|           |     |---- Disjoint (row/col)
|           |     |---- Edge distance (to left/right/top/bottom boundaries)
|           |     |---- Extension
|           |     |---- Row (odd/even)
|           |     |---- Symmetry
|           |     |---- Pre-placed cell
|           |---- Routing cstr
|                 |---- Symmetry
|                 |---- Path matching (developing)
|---- Placer
|     |---- SMT placer
|---- Router
|     |---- Global routing manager (deprecated)
|     |---- Detailed routing manager
|     |     |---- Path searching detailed router
|     |---- Post routing
|---- I/O
      |---- Parser
      |     |---- LEF primitive templates parser
      |     |---- Hspice netlist parser
      |     |---- Grid file parser
      |     |---- Constraint file parser
     

Dependencies

• CMake >= 3.14.0
• pybind11 >= 2.7.0 (Python 3.7/3.8)
• Boost >= 1.6
• spdlog
• Limbo
• phmap
• z3 >= 4.8.11
• nanoflann
• lemon >= 1.3.1
• zlib
• cxxopts == 2.2.0
• lef/def >= 5.8

Installation

Recommended GCC version: >= 8.3.0 (Tested on 8.3.0)

mkdir -p cpp/build/ && cd cpp/build/
cmake .. -DPYTHON_EXECUTABLE=<path to python> -DPYTHON_LIBRARY=<path to python lib>
make

A binary executable autocraftE and a python library autocraft.cpython-3x-x86_64-linux-gnu.so will be generated after compilation. Copy the file to your python site-packages path by

cp autocraft.cpython-3x-x86_64-linux-gnu.so <your site-packages path>

or put it under the path with the files importing autocraft.

Usage

Using the Python interface is recommended. The binary executable autocraftE can still be used for debugging purpose. Run

autocraftE [OPTION...]
    --laygo_config=<file>       # laygo configuration (.yml)
    --tech_grid=<file>          # placement anf routing grids definition (.yml)
    --tech_map=<file>           # device-to-primitive mapping (.yml)
    --constraint=<file>         # constraint specification
    --lef=<files>               # primitive and via templates (.lef)
    --netlist=<file>            # spice netlist (.cir)
    --drc=<file>                # abstracted drc rules (.yml)
    --in_place=<file>           # placement input (optional)
    --out_place=<file>          # cells location after placement (optional)
    --out_gv=<file>             # gated verilog netlist output (optional)
    --out_tcl=<file>            # ICC2 Tcl commands output (optional)
    --threads=<int>             # number of CPU threads for placement (optional, not necessarily faster)
    --place_ar=<float>          # user-defined aspect ratio of the design area
    --place_ur=<float>          # user-defined utilization ratio of the design
    --place_ur_reg_name=<strs>  # utilization ratio for some regions (should be used together with --place_ur_reg_val)
    --place_ur_reg_val=<floats> # utilization ratio values for some regions
    --place_bbox=<ints>         # design bounding box
    --place_iter=<int>          # placemnt WL optimization iterations
-h, --help                      # print usage

Example: 
autocraftE --laygo_config=laygo_config.yaml \
           --tech_grid=dv5t_crg_fll_ana_obsd.grid.yaml \
           --tech_map=dv5t_crg_fll_ana_obsd.map.yaml \
           --constraint=dv5t_crg_fll_ana_obsd.constraint.yaml \
           --lef=dv5t_crg_fll_ana_obsd.template.lef,dv5t_crg_fll_ana_obsd.via.lef \
           --netlist=dv5t_crg_fll_ana_obsd.cir \
           --drc=layers.drc.yaml \
           --threads=1 \
           --place_ar=1.1 \
           --place_ur=0.4 \
           --place_ur_reg_name=region1 \
           --place_ur_reg_val=0.4 \
           --place_iter=2 \
           --out_gv=dv5t_crg_fll_ana_obsd.gv \
           --out_tcl=dv5t_crg_fll_ana_obsd_pnr.tcl

to execute the program

autocraft's Issues

AutoCRAFT build

I tried to build AutoCRAFT, but got the following message So I checked the src/io/ folder and still could not find write.cpp.
Can you tell me how to resolve this error?

========== Messeages ==================================

cmake .. -DPYTHON_EXECUTABLE=/home/simazaki/.pyenv/shims/python -DPYTHON_LIBRARY=. -DYAML_CPP_ROOT_DIR=/usr/local/yaml-cpp -DLEF_DIR=/usr/local/lef -DLIMBO_DIR=/usr/local/Limbo
-- The C compiler identification is GNU 11.4.0
-- The CXX compiler identification is GNU 11.4.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- pybind11:
CMake Deprecation Warning at pybind11/CMakeLists.txt:8 (cmake_minimum_required):
Compatibility with CMake < 3.5 will be removed from a future version of
CMake.

Update the VERSION argument value or use a ... suffix to tell
CMake that the project does not need compatibility with older versions.

-- pybind11 v2.11.0 dev1
CMake Warning (dev) at pybind11/tools/FindPythonLibsNew.cmake:98 (find_package):
Policy CMP0148 is not set: The FindPythonInterp and FindPythonLibs modules
are removed. Run "cmake --help-policy CMP0148" for policy details. Use
the cmake_policy command to set the policy and suppress this warning.

Call Stack (most recent call first):
pybind11/tools/pybind11Tools.cmake:50 (find_package)
pybind11/tools/pybind11Common.cmake:180 (include)
pybind11/CMakeLists.txt:202 (include)
This warning is for project developers. Use -Wno-dev to suppress it.

-- Found PythonInterp: /home/simazaki/.pyenv/shims/python (found suitable version "3.11.5", minimum required is "3.6")
-- Found PythonLibs: /home/simazaki/workspace/aipcb/AutoCRAFT/cpp/build
-- Performing Test HAS_FLTO
-- Performing Test HAS_FLTO - Success
-- Found Boost: /usr/lib/x86_64-linux-gnu/cmake/Boost-1.74.0/BoostConfig.cmake (found suitable version "1.74.0", minimum required is "1.6") found components: system graph
CMake Warning (dev) at CMakeLists.txt:28 (find_package):
Policy CMP0148 is not set: The FindPythonInterp and FindPythonLibs modules
are removed. Run "cmake --help-policy CMP0148" for policy details. Use
the cmake_policy command to set the policy and suppress this warning.

This warning is for project developers. Use -Wno-dev to suppress it.

-- Found PythonLibs: /home/simazaki/workspace/aipcb/AutoCRAFT/cpp/build (found version "3.10.12")
-- yaml-cpp: /usr/local/yaml-cpp
-- z3:
-- spdlog:
-- phmap:
-- nanoflann:
-- limbo: /usr/local/Limbo
-- lef: /usr/local/lef
-- def:
-- lemon:
-- cxxopts:
-- zlib:
-- Using build type Release
-- Configuring done (1.1s)
CMake Error at CMakeLists.txt:208 (add_executable):
Cannot find source file:

src/io/writer.cpp

Tried extensions .c .C .c++ .cc .cpp .cxx .cu .mpp .m .M .mm .ixx .cppm
.ccm .cxxm .c++m .h .hh .h++ .hm .hpp .hxx .in .txx .f .F .for .f77 .f90
.f95 .f03 .hip .ispc

CMake Error at CMakeLists.txt:208 (add_executable):
No SOURCES given to target: autocraftE

CMake Error at pybind11/tools/pybind11Tools.cmake:177 (add_library):
No SOURCES given to target: autocraft
Call Stack (most recent call first):
CMakeLists.txt:213 (pybind11_add_module)

CMake Generate step failed. Build files cannot be regenerated correctly.