invalid command name "partition_design"

[esonghori]

Hi,

I am trying to use LEF/DEF to proto format code and I am getting the following error:

Error: generate_odb.tcl, 12 invalid command name "partition_design"

I am compiling openroad myself, since I get don't have python3.6 on my machine and can't use the openroad binary you provided here. I was wondering if the openroad you provided is modified, since I couldn't find any documentation for partition_design in openroad documentation.

Thank you.

[luarss]

@esonghori They are using an older version of the OpenROAD binary I think. OpenROAD has shifted to using new commands for partitioning 1.

Alternatively, I think you can also try an older version of OpenROAD (around Jun'22) and compile from scratch.

[esonghori]

Thank you @luarss for the information. Do you know why they used partitioning for translating the LEF/DEF files into proto files. I don't understand why partitioning is needed for translation.

[esonghori]

I tried replacing the partition_design command with triton_part_design in the code, however, the flags do not match perfectly from the old command to the new one.

We used to have:

partition_design -max_num_inst 2000000 -min_num_inst 40000
  -max_num_macro 12 -min_num_macro 4
  -net_threshold 20  -virtual_weight 50
  -num_hop 0 -timing_weight 1000
  -report_file ${top_design}.hgr

I tried the following command instead:

triton_part_design -solution_file ${top_design}.hgr -num_parts 1 -timing_aware_flag false

However, I get the following error in the logs:

========================================
[STATUS] Starting TritonPart Partitioner
========================================
[INFO PAR-0168] [INFO] Partitioning parameters**** 
[INFO PAR-0102] Number of partitions = 2
[INFO PAR-0016] UBfactor = 1
[INFO PAR-0017] Seed = 1
[INFO PAR-0018] Vertex dimensions = 1
[INFO PAR-0019] Hyperedge dimensions = 1
[INFO PAR-0020] Placement dimensions = 0
[INFO PAR-0021] Timing aware flag = true
[INFO PAR-0103] Guardband flag = false
[INFO PAR-0023] Global net threshold = 1000
[INFO PAR-0024] Top 1000 critical timing paths are extracted.
[INFO PAR-0025] Fence aware flag = false
[INFO PAR-0030] Solution file = ariane.hgr
========================================
[STATUS] Reading netlist**** 
[ERROR PAR-2677] There is no vertices and hyperedges

It looks like the triton_part_design command didn't find the design. Any idea how to fix this?

[luarss]

Hi @esonghori the new API assumes you have read a design either via netlist or hypergraph file. There are test cases here, hope it helps: https://github.com/The-OpenROAD-Project/OpenROAD/tree/65aff1f6e4163316511ae2a3266ca058f150c3e2/src/par/test

[diaoerlie]

hello @esonghori , i have the same problem here, is it sovled?

[diaoerlie]

@esonghori hello, read_lib is must for partiton_design