OpenLane

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### Prompt I was watching @mattvenn 's interview with @dineshannayya (https://www.youtube.com/watch?v=lFVnicPhTI0) where Dinesh says that he can't control io pin placement. ### Proposal OR has controls for io pin placement...

maliberty

Design reports after routing show technically-true, but practically-useless, utilization numbers

1

### Description During the implementation of any design, OpenLane will create a `reports` folder. This `reports` folder has, among others, an area report. The area report displays both raw area,...

tdene

mpw-5c are very noisy for output logs

7

### Prompt running make user_project_wrapper generates 100k lines of logs ### Proposal show only errors and top level information. Each tool can log into the log directories as before.

mattvenn

add back the symlink lef file to the output results directories where def files are

1

### Prompt A clear and concise description of what shortcoming you feel OpenLane has. I used to be able to use klayout to open def files, but now the tmp-merged.lef...

mattvenn

### Prompt OpenLane is currently missing scan-chain insertion capabilities during synthesis. ### Proposal The tool https://github.com/Cloud-V/Fault was developed earlier for exactly such a purpose. It needs some minor tweaking to...

donn

Illegal Overlaps in the Design

5

### Description When running a flow interactively on the OpenLane, at the run_magic_spice_export stage, I have faced an error like; [ERROR]: There are illegal overlaps (e.g., routes over obstructions) in...

ufukyill

placement.tcl removes resizer buffers

3

In run_placement scripts/tcl_commands/placement.tcl run_resizer_design if { [info exists ::env(DONT_BUFFER_PORTS) ]} { remove_buffers } This undoes any buffers inserted for long wire, max slew, max cap design rule repair done by...

jjcherry56

Choosing a Synthesis Strategy

3

Hello, Below is a screenshot of a synthesis exploration that I have done on spm. According to the OpenLane documentation, there is a SYNTH_STRATEGY variable that can be used in...

mousaq92

Yosys crashes when reading abc.script with return code: 134

1

### Description run_synthesis failed while executing abc.script ### Environment ``` Kernel: Linux v3.10.0-1160.49.1.el7.x86_64 Distribution: centos 7 Python: v3.6.8 (OK) Critical Alert: No Docker or Docker-compatible container engine was found: {e}....

vijayank88

sky130hs fails on diode error

1

### Description If I run gcd with sky130hs (using #905 ) I get: ``` [WARNING STA-0328] port 'DIODE' not found. [ERROR GRT-0069] Diode not found. Error: groute.tcl, 74 GRT-0069 ```...

maliberty