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README.md
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@ -19,169 +19,8 @@ predictive and fabricable technologies.
# Documentation # Documentation
Please take a look at our presentation We have created a detailed Please see our [documentation][documentation] and let us know if anything needs
presentation that serves as our [documentation][documentation]. updating.
This is the most up-to-date information, so please let us know if you see
things that need to be fixed.
# Basic Setup
## Dependencies
Please see the Dockerfile for the required versions of tools.
In general, the OpenRAM compiler has very few dependencies:
+ Docker
+ Make
+ Python 3.6 or higher
+ Various Python packages (pip install -r requirements.txt)
+ [Git]
## Docker
We have a [docker setup](./docker) to run OpenRAM. To use this, you should run:
```
cd OpenRAM/docker
make build
```
This must be run once and will take a while to build all the tools.
## Environment
You must set two environment variables:
+ OPENRAM\_HOME should point to the compiler source directory.
+ OPENERAM\_TECH should point to one or more root technology directories (colon separated).
You should also add OPENRAM\_HOME to your PYTHONPATH.
For example add this to your .bashrc:
```
export OPENRAM_HOME="$HOME/OpenRAM/compiler"
export OPENRAM_TECH="$HOME/OpenRAM/technology"
```
You should also add OPENRAM\_HOME to your PYTHONPATH:
```
export PYTHONPATH=$OPENRAM_HOME
```
Note that if you want symbols to resolve in your editor, you may also want to add the specific technology
directory that you use and any custom technology modules as well. For example:
```
export PYTHONPATH="$OPENRAM_HOME:$OPENRAM_TECH/sky130:$OPENRAM_TECH/sky130/custom"
```
We include the tech files necessary for [SCMOS] SCN4M_SUBM,
[FreePDK45]. The [SCMOS] spice models, however, are
generic and should be replaced with foundry models. You may get the
entire [FreePDK45 PDK here][FreePDK45].
### Sky130 Setup
To install [Sky130], you must have the open_pdks files installed in $PDK_ROOT.
To install this automatically, you can run:
```
cd $HOME/OpenRAM
make pdk
```
Then you must also install the [Sky130] SRAM build space and the appropriate cell views
by running:
```
cd $HOME/OpenRAM
make install
```
# Basic Usage
Once you have defined the environment, you can run OpenRAM from the command line
using a single configuration file written in Python.
For example, create a file called *myconfig.py* specifying the following
parameters for your memory:
```
# Data word size
word_size = 2
# Number of words in the memory
num_words = 16
# Technology to use in $OPENRAM_TECH
tech_name = "scn4m_subm"
# You can use the technology nominal corner only
nominal_corner_only = True
# Or you can specify particular corners
# Process corners to characterize
# process_corners = ["SS", "TT", "FF"]
# Voltage corners to characterize
# supply_voltages = [ 3.0, 3.3, 3.5 ]
# Temperature corners to characterize
# temperatures = [ 0, 25 100]
# Output directory for the results
output_path = "temp"
# Output file base name
output_name = "sram_{0}_{1}_{2}".format(word_size,num_words,tech_name)
# Disable analytical models for full characterization (WARNING: slow!)
# analytical_delay = False
```
You can then run OpenRAM by executing:
```
python3 $OPENRAM_HOME/openram.py myconfig
```
You can see all of the options for the configuration file in
$OPENRAM\_HOME/options.py
To run designs in Docker, it is suggested to use, for example:
```
cd OpenRAM/macros
make example_config_scn4m_subm
```
# Unit Tests
Regression testing performs a number of tests for all modules in OpenRAM.
From the unit test directory ($OPENRAM\_HOME/tests),
use the following command to run all regression tests:
```
cd OpenRAM/compiler/tests
make -j 3
```
The -j can run with 3 threads. By default, this will run in all technologies.
To run a specific test in all technologies:
```
cd OpenRAM/compiler/tests
make 05_bitcell_array_test
```
To run a specific technology:
```
cd OpenRAM/compiler/tests
TECHS=scn4m_subm make 05_bitcell_array_test
```
To increase the verbosity of the test, add one (or more) -v options and
pass it as an argument to OpenRAM:
```
ARGS="-v" make 05_bitcell_array_test
```
Unit test results are put in a directory:
```
OpenRAM/compiler/tests/results/<technology>/<test>
```
If the test fails, there will be a tmp directory with intermediate results.
If the test passes, this directory will be deleted to save space.
You can view the .out file to see what the output of a test is in either case.
# Get Involved # Get Involved

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@ -0,0 +1,76 @@
### [Go Back](./index.md#directory)
This page shows the basic setup for using OpenRAM.
# Basic Setup
## Dependencies
Please see the Dockerfile for the required versions of tools.
In general, the OpenRAM compiler has very few dependencies:
+ Docker
+ Make
+ Python 3.6 or higher
+ Various Python packages (pip install -r requirements.txt)
+ [Git]
## Docker
We have a [docker setup](./docker) to run OpenRAM. To use this, you should run:
```
cd OpenRAM/docker
make build
```
This must be run once and will take a while to build all the tools.
## Environment
You must set two environment variables:
+ OPENRAM\_HOME should point to the compiler source directory.
+ OPENERAM\_TECH should point to one or more root technology directories (colon separated).
You should also add OPENRAM\_HOME to your PYTHONPATH.
For example add this to your .bashrc:
```
export OPENRAM_HOME="$HOME/OpenRAM/compiler"
export OPENRAM_TECH="$HOME/OpenRAM/technology"
```
You should also add OPENRAM\_HOME to your PYTHONPATH:
```
export PYTHONPATH=$OPENRAM_HOME
```
Note that if you want symbols to resolve in your editor, you may also want to add the specific technology
directory that you use and any custom technology modules as well. For example:
```
export PYTHONPATH="$OPENRAM_HOME:$OPENRAM_TECH/sky130:$OPENRAM_TECH/sky130/custom"
```
We include the tech files necessary for [SCMOS] SCN4M_SUBM,
[FreePDK45]. The [SCMOS] spice models, however, are
generic and should be replaced with foundry models. You may get the
entire [FreePDK45 PDK here][FreePDK45].
### Sky130 Setup
To install [Sky130], you must have the open_pdks files installed in $PDK_ROOT.
To install this automatically, you can run:
```
cd $HOME/OpenRAM
make pdk
```
Then you must also install the [Sky130] SRAM build space and the appropriate cell views
by running:
```
cd $HOME/OpenRAM
make install
```

53
docs/source/basic_usage.md
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@ -28,9 +28,54 @@ This page of the documentation explains the basic usage of OpenRAM.
## Command Line Usage ## Command Line Usage
* Basic command line (with or without py suffix):
* `openram.py config` Once you have defined the environment, you can run OpenRAM from the command line
* `openram.py config.py` using a single configuration file written in Python.
For example, create a file called *myconfig.py* specifying the following
parameters for your memory:
```
# Data word size
word_size = 2
# Number of words in the memory
num_words = 16
# Technology to use in $OPENRAM_TECH
tech_name = "scn4m_subm"
# You can use the technology nominal corner only
nominal_corner_only = True
# Or you can specify particular corners
# Process corners to characterize
# process_corners = ["SS", "TT", "FF"]
# Voltage corners to characterize
# supply_voltages = [ 3.0, 3.3, 3.5 ]
# Temperature corners to characterize
# temperatures = [ 0, 25 100]
# Output directory for the results
output_path = "temp"
# Output file base name
output_name = "sram_{0}_{1}_{2}".format(word_size,num_words,tech_name)
# Disable analytical models for full characterization (WARNING: slow!)
# analytical_delay = False
```
You can then run OpenRAM by executing:
```
python3 $OPENRAM_HOME/openram.py myconfig
```
You can see all of the options for the configuration file in
$OPENRAM\_HOME/options.py
To run designs in Docker, it is suggested to use, for example:
```
cd OpenRAM/macros
make example_config_scn4m_subm
```
* Common arguments: * Common arguments:
* `-t` specify technology (scn4m_subm or scmos or freepdk45) * `-t` specify technology (scn4m_subm or scmos or freepdk45)
* `-v` increase verbosity of output * `-v` increase verbosity of output
@ -128,4 +173,4 @@ The final results files are:
## Data Sheets ## Data Sheets
![Datasheet 1](../assets/images/basic_usage/datasheet_1.png) ![Datasheet 1](../assets/images/basic_usage/datasheet_1.png)
![Datasheet 2](../assets/images/basic_usage/datasheet_2.png) ![Datasheet 2](../assets/images/basic_usage/datasheet_2.png)
![Datasheet 3](../assets/images/basic_usage/datasheet_3.png) ![Datasheet 3](../assets/images/basic_usage/datasheet_3.png)

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docs/source/debug.md
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@ -41,6 +41,41 @@ OpenRAM has the set of thorough regression tests implemented with the Python uni
## Running Unit Tests ## Running Unit Tests
Regression testing performs a number of tests for all modules in OpenRAM.
From the unit test directory ($OPENRAM\_HOME/tests),
use the following command to run all regression tests:
```
cd OpenRAM/compiler/tests
make -j 3
```
The -j can run with 3 threads. By default, this will run in all technologies.
To run a specific test in all technologies:
```
cd OpenRAM/compiler/tests
make 05_bitcell_array_test
```
To run a specific technology:
```
cd OpenRAM/compiler/tests
TECHS=scn4m_subm make 05_bitcell_array_test
```
To increase the verbosity of the test, add one (or more) -v options and
pass it as an argument to OpenRAM:
```
ARGS="-v" make 05_bitcell_array_test
```
Unit test results are put in a directory:
```
OpenRAM/compiler/tests/results/<technology>/<test>
```
If the test fails, there will be a tmp directory with intermediate results.
If the test passes, this directory will be deleted to save space.
You can view the .out file to see what the output of a test is in either case.
* Tests can be run in the `$OPENRAM_HOME/tests` directory * Tests can be run in the `$OPENRAM_HOME/tests` directory
* Command line arguments * Command line arguments
* `-v` for verbose * `-v` for verbose
@ -52,7 +87,6 @@ OpenRAM has the set of thorough regression tests implemented with the Python uni
* `regress.py` * `regress.py`
## Successful Unit Tests ## Successful Unit Tests
```console ```console
user@host:/openram/compiler/tests$ ./regress.py user@host:/openram/compiler/tests$ ./regress.py
@ -138,4 +172,8 @@ FAILED (failures=1)
* SPICE netlist for intermediate module results (`temp.sp`) * SPICE netlist for intermediate module results (`temp.sp`)
* Extracted layout netlist for intermediate module results (`extracted.sp`) * Extracted layout netlist for intermediate module results (`extracted.sp`)
* Magic only: Run scripts for DRC (`run_drc.sh`) and LVS (`run_lvs.sh`) * Magic only: Run scripts for DRC (`run_drc.sh`) and LVS (`run_lvs.sh`)
* Calibre only: Runset file for DRC (`drc_runset`) and LVS (`lvs_runset`) * Calibre only: Runset file for DRC (`drc_runset`) and LVS (`lvs_runset`)

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docs/source/index.md
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@ -5,48 +5,29 @@ These pages provide the documentation of OpenRAM. You can use the links below to
## Directory ## Table of Contents
1. [OpenRAM Dependencies](#openram-dependencies)
1. [Supported Technologies](#supported-technologies)
1. [Bitcells](./bitcells.md#go-back)
1. [Architecture](./architecture.md#go-back)
1. [Implementation](#implementation)
1. [Technology and Tool Portability](#technology-and-tool-portability)
1. [Basic Usage](./basic_usage.md#go-back)
1. [Tutorials](./tutorials.md#go-back)
1. [Debugging and Unit Testing](./debug.md#go-back)
1. [Technology Setup](./technology_setup.md#go-back)
1. [Library Cells](./library_cells.md#go-back)
1. [Base Data Structures](./base_data_structures.md#go-back)
1. [Hierarchical Design Modules](./design_modules.md#go-back)
1. [Control Logic and Timing](./control_logic.md#go-back)
1. [Routing](./routing.md#go-back)
1. [Characterization](./characterization.md#go-back)
1. [Results](./results.md#go-back)
1. [FAQ](./FAQ.md#go-back)
1. [Contributors/Collaborators](#contributorscollaborators) 1. [Contributors/Collaborators](#contributorscollaborators)
2. [OpenRAM Dependencies](#openram-dependencies)
3. [Supported Technologies](#supported-technologies)
4. [Bitcells](./bitcells.md#go-back)
5. [Architecture](./architecture.md#go-back)
6. [Implementation](#implementation)
7. [Technology and Tool Portability](#technology-and-tool-portability)
8. [Basic Usage](./basic_usage.md#go-back)
9. [Tutorials](./tutorials.md#go-back)
10. [Debugging and Unit Testing](./debug.md#go-back)
11. [Technology Setup](./technology_setup.md#go-back)
12. [Library Cells](./library_cells.md#go-back)
13. [Base Data Structures](./base_data_structures.md#go-back)
14. [Hierarchical Design Modules](./design_modules.md#go-back)
15. [Control Logic and Timing](./control_logic.md#go-back)
16. [Routing](./routing.md#go-back)
17. [Characterization](./characterization.md#go-back)
18. [Results](./results.md#go-back)
19. [FAQ](./FAQ.md#go-back)
## Contributors/Collaborators
<img align="right" height="120" src="../assets/images/logos/okstate.png">
* Prof. Matthew Guthaus (UCSC)
* Prof. James Stine & Dr. Samira Ataei (Oklahoma State University)
* UCSC students:
* Bin Wu
* Hunter Nichols
* Michael Grimes
* Jennifer Sowash
* Jesse Cirimelli-Low
<img align="right" height="100" src="../assets/images/logos/vlsida.png">
* Many other past students:
* Jeff Butera
* Tom Golubev
* Marcelo Sero
* Seokjoong Kim
## OpenRAM Dependencies ## OpenRAM Dependencies
@ -108,3 +89,23 @@ Commercial tools (optional):
* Uses a wrapper interface with DRC and LVS tools that allow flexibility * Uses a wrapper interface with DRC and LVS tools that allow flexibility
* DRC and LVS can be performed at all levels of the design hierarchy to enhance bug tracking. * DRC and LVS can be performed at all levels of the design hierarchy to enhance bug tracking.
* DRC and LVS can be disabled completely for improved run-time or if licenses are not available. * DRC and LVS can be disabled completely for improved run-time or if licenses are not available.
## Contributors/Collaborators
<img align="right" height="120" src="../assets/images/logos/okstate.png">
* Prof. Matthew Guthaus (UCSC)
* Prof. James Stine & Dr. Samira Ataei (Oklahoma State University)
* UCSC students:
* Bin Wu
* Hunter Nichols
* Michael Grimes
* Jennifer Sowash
* Jesse Cirimelli-Low
<img align="right" height="100" src="../assets/images/logos/vlsida.png">
* Many other past students:
* Jeff Butera
* Tom Golubev
* Marcelo Sero
* Seokjoong Kim