My OpenLane runs are getting killed by the OOM killer during detailed routing. I am currently checking my RTL to find any inefficiencies, which is most likely the reason for this. But does anyone know some other way to unblock myself, like a flag in config.tcl, or changing some options in the OS, etc.? @User?

@User Child killed due to system resources. Mostly not have enough RAM for routing. What's your system RAM?

16 GB. I have tried this on higher config machine (128 GB) and the run went through. But I do not have access to that machine at the moment, and wanted to fix this in the current setup itself.

is design have memory modules?

Yes. 2 modules of 64x4 bits. That's not a lot, right?

Memory modules required more RAM

I see. Okay, I'll try moving them out of the design and giving it another try.

I got the same issue. Helped decreasing the utilization to like 25%

@User You could add some swap (i.e. pagefile or disk-based memory) to your system. It will slow down your run but it will eventually go through.

@User: how can I do that?

@User For Linux, see https://www.makeuseof.com/swap-files-in-linux/ . For Windows, you can have a look at https://www.tomshardware.com/news/how-to-manage-virtual-memory-pagefile-windows-10,36929.html .

Thanks @User, increasing the swap space did help me to get past the OOM kill point.