@User @User @User @User Hello, I was running my SoC. i got the following error during the route:

[ERROR] FastRoute cannot handle very congested design

[ERROR]: during executing: "openroad -exit /openLANE_flow/scripts/openroad/or_route.tcl |& tee >&@stdout /openLANE_flow/designs/ghazi/runs/fourth/logs/routing/fastroute.log"

[ERROR]: Exit code: 1

[ERROR]: Last 10 lines:

child process exited abnormally

From the DEF file, the standard cells are being overlapped with the macro. Usually there is a placement blockage placed over the macro to avoid this. I could not find how to do it in OPENLANE flow. Reviewing the OPENROAD git, they have a way to create a fence around the macro, as shown below: https://github.com/The-OpenROAD-Project/OpenROAD/blob/master/src/TritonMacroPlace/src/macroPlace.tcl @User @User

@Wajeh ul hasan: I think the fastest action would be relaxing the FP_CORE_UTIL and PL_TARGET_DENSITY.

@tnt has a patch that applies manual macro placement before global placement that should prevent this

That's been merged in openlane yesterday.

@tnt Can you please point me towards this patch. I tried constraining the core area through

env(CORE_AREA)

and placed my macro outside the core area. Now though, I have run into the routing issue since it is now routing over the macro. @aryap

there are risks either way. if you can't solve it in rc4 you pretty much have to move to rc5

oh, I am still dabbling in rc4, I guess I would have to shift