As part of my work on openlane support in edalize/fusesoc, I'm adapting a fork of the Caravel repo (mpw-one-b tag at the moment) to use Fusesoc. A real world example to see what features we might want, and ideally me and Kindgren would like to do a shuttle submission with a wrapped SERV in the user project area built through Fusesoc commands. I'm having issues with building mgmt_core. I'll guess I'll get back with particular questions since I have a build going right now, but one thing I'm wondering is if build times up to around 24h sound like they are in a reasonable ballpark for this block? Using an i7-10750H here. It also seems to get completely stuck after reporting LVS mismatches, so I've disabled that entire step for now which is hardly ideal.

@Klas Nordmark my understanding is that macros included in caravel (mgmt_core, chip_io, digital_pll, SRAM, etc.) are to be treated as hard macros. It is not intended that these designs be remade using openlane. The openlane flow is used to rebuild the user_project_wrapper. Please correct me if I'm mistaken.

I understand that as the intended flow, but I would have thought rebuilding things yourself to be a possibility. Not of critical importance to me, I suppose, but a nice way to try a non-trivial use case, to see what kind of things we might need when generating tcl files and so on beyond the bare minimum.

my understanding is that we should be able to build all those blocks. But you may want to get @Tim Edwards to give you some pointers about what tags/configs of the tools were used to get the results

@Matt Venn, @Klas Nordmark: There is a "frozen" state tagged "mpw-one" (or something similar) on all the tools, with which it should be possible to exactly reproduce the Caravel build. I didn't build Caravel, though, so I don't know how long it takes.

Thanks Tim. Who did build it?

@Ahmed Ghazy. But he just left AUC to pursue a Ph.D. in Europe, and I don't know how available he is. @Manar Abdelatty should be familiar with the flow and how long it takes to run Caravel through synthesis, place, and route.

I've had questions for him and he hasn't responded for weeks, so he is not really available, FYI.

That way my impression, too.