Øyvind Harboe
Øyvind Harboe
After ca. 6 hours, the following output: ``` [INFO PDN-0001] Inserting grid: ElementGrid - tile_prci_domain/tile_reset_domain/boom_tile/dcache [INFO PDN-0001] Inserting grid: ElementGrid - tile_prci_domain/tile_reset_domain/boom_tile/frontend/bpd [INFO PDN-0001] Inserting grid: ElementGrid - tile_prci_domain/tile_reset_domain/boom_tile/core/FpPipeline [INFO...
> With OpenROAD v2.0-11595-g31d7e3dc5 > > it took under 1hr: > > ``` > real 52m24.020s > ``` > > so I can't reproduce your issue. What kind of machine...
This is the PC I used. I will try again with `OpenROAD v2.0-11595-g31d7e3dc5` Quite a large memory footprint for 16mByte L3... ``` PID USER PR NI VIRT RES SHR S...
Will try on this machine... I don't expect much better luck as PDN is running out of memory and into swap space here as well, same amount of physical memory...
@maliberty Relabeled issue as a feature request
@maliberty Ca. 2x as much L3 as I have. How much RAM do you have? I believe the reason it completes in a reasonable amount of time is that you...
I'm not going to do any additional tests, I think we have pretty convincing evidence that the problem is the surprisingly large memory consumption of PDN.
When I reduce the size of the floorplan from 2000um x 2000um to 1000um x 1000um, then PDN completes in 3 minutes or so, compared to never completing. Memory consumption...
> I can take a look to see if there is anything else that could help, but I would take a look at the LEFs to see why they are...
> @oharboe `BoomNonBlockingDCache` the LEF is 300MB for example, it looks like it is exposing the entire power grid and probably doesn't have power pins in the actual subblock. I...