Am having an issue with my submission. When I run `make user_project_wrapper`, it runs just fine, un...

Tholin

12/30/2022, 6:39 PM

Am having an issue with my submission. When I run

make user_project_wrapper

, it runs just fine, until it gets to Step 30,

Running Magic DRC

, which appears to complete just fine, until it prints

Converting Magic DRC database to various tool-readable formats...

, at which point a process of python3 eats through all 32GB of RAM in my system, followed by a 10GB swapfile, and then crashes the entire OS. What is going on here?

Mitch Bailey

12/30/2022, 9:26 PM

Looks like it finished the DRC step but may have trouble converting the output. Can you find the magic DRC results?

Tholin

12/30/2022, 11:44 PM

I managed to pass this step by creating a 40GB swapfile. And then it just fails because it found 5 million DRC violations.

Tholin

12/30/2022, 11:45 PM

I am using the

sky130_sram_2kbyte_1rw1r_32x512_8

macro in this project, if that matters.

Tholin

12/31/2022, 2:22 AM

I can disable DRC in the config to allow me to have a look at the generated GDS. Precheck also fails on said GDS, due to DRC errors.

Vijayan Krishnan

12/31/2022, 6:01 AM

Have you used

GRT_OBS

around sram macro?

Mitch Bailey

12/31/2022, 3:02 PM

For designs with srams, you need to swap the gds sram with the lef version. I thought that was included in the precheck though.

Tholin

01/01/2023, 2:37 PM

I tried using

GRT_OBS

, and everything was fine after that. Nothing with precheck now.

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