Global Routing is failing due to High Congetion for X-heep

[Wiki1998-dev]

Subject

[Stage]: Global Router.

Describe the bug

hello, Firstly my design is showing congestion too high .I have tried different values for placement density ,Halo but it gives same issue. how can i understand what to set .Can you kindly guide/suggest me.

export SYNTH_HIERARCHICAL = 1 export MAX_UNGROUP_SIZE = 100

export CORE_UTILIZATION = 20 export CORE_ASPECT_RATIO = 1 export CORE_MARGIN = 2

export PLACE_DENSITY_LB_ADDON = 0.2 export PLACE_DENSITY = 0.2

export RTLMP_FLOW = True

export MACRO_PLACE_HALO = 70 70 export MACRO_PLACE_CHANNEL = 140 140

Expected Behavior

It should keep Running

Environment

I dont find this file in my system i have just installed the ORFS from prebuilt libraries with latest release
(base) syed@syed-Latitude-E5450:~/OpenROAD-flow-scripts/flow$ which openroad
/usr/bin/openroad
(base) syed@syed-Latitude-E5450:/usr/bin$ openroad
OpenROAD 42ba30d730851a73bd2996c5673a05fd79520f87 
Features included (+) or not (-): +Charts +GPU +GUI +Python : None
This program is licensed under the BSD-3 license. See the LICENSE file for details.
Components of this program may be licensed under more restrictive licenses which must be honored.
openroad>

To Reproduce

https://drive.google.com/file/d/1KasNChJvnRrOwvnGMV3AjRBe5ORF0xrj/view?usp=sharing it is global route issue tar i am uploading but incase you need anything more please let me know

Relevant log output

OpenROAD 42ba30d730851a73bd2996c5673a05fd79520f87 
Features included (+) or not (-): +Charts +GPU +GUI +Python : None
This program is licensed under the BSD-3 license. See the LICENSE file for details.
Components of this program may be licensed under more restrictive licenses which must be honored.
[INFO ORD-0030] Using 4 thread(s).
global_route -congestion_report_file ./reports/sky130hd/core_v_mini_mcu/base/congestion.rpt -congestion_iterations 30 -congestion_report_iter_step 5 -verbose
[INFO GRT-0020] Min routing layer: met1
[INFO GRT-0021] Max routing layer: met5
[INFO GRT-0022] Global adjustment: 0%
[INFO GRT-0023] Grid origin: (0, 0)
[INFO GRT-0043] No OR_DEFAULT vias defined.
[INFO GRT-0088] Layer li1     Track-Pitch = 0.4600  line-2-Via Pitch: 0.3400
[INFO GRT-0088] Layer met1    Track-Pitch = 0.3400  line-2-Via Pitch: 0.3400
[INFO GRT-0088] Layer met2    Track-Pitch = 0.4600  line-2-Via Pitch: 0.3500
[INFO GRT-0088] Layer met3    Track-Pitch = 0.6800  line-2-Via Pitch: 0.6150
[INFO GRT-0088] Layer met4    Track-Pitch = 0.9200  line-2-Via Pitch: 1.0400
[INFO GRT-0088] Layer met5    Track-Pitch = 3.4000  line-2-Via Pitch: 3.1100
[INFO GRT-0019] Found 33791 clock nets.
[INFO GRT-0001] Minimum degree: 2
[INFO GRT-0002] Maximum degree: 241
[INFO GRT-0003] Macros: 16
[INFO GRT-0043] No OR_DEFAULT vias defined.
[INFO GRT-0004] Blockages: 372462

[INFO GRT-0053] Routing resources analysis:
          Routing      Original      Derated      Resource
Layer     Direction    Resources     Resources    Reduction (%)
---------------------------------------------------------------
li1        Vertical            0             0          0.00%
met1       Horizontal   12970160       6355806          51.00%
met2       Vertical      9726815       6544551          32.72%
met3       Horizontal    6485080       4328358          33.26%
met4       Vertical      3892175       1940756          50.14%
met5       Horizontal    1296855        552162          57.42%
---------------------------------------------------------------

[INFO GRT-0101] Running extra iterations to remove overflow.
[INFO GRT-0197] Via related to pin nodes: 1722957
[INFO GRT-0198] Via related Steiner nodes: 54119
[INFO GRT-0199] Via filling finished.
[INFO GRT-0111] Final number of vias: 2325451
[INFO GRT-0112] Final usage 3D: 10350417

[INFO GRT-0096] Final congestion report:
Layer         Resource        Demand        Usage (%)    Max H / Max V / Total Overflow
---------------------------------------------------------------------------------------
li1                  0             0            0.00%             0 /  0 /  0
met1           6355806       1206855           18.99%             0 /  0 /  0
met2           6544551       1350414           20.63%             0 /  0 /  0
met3           4328358        510560           11.80%             0 /  0 /  0
met4           1940756        267422           13.78%             0 /  0 /  0
met5            552162         38813            7.03%             0 /  0 /  0
---------------------------------------------------------------------------------------
Total         19721633       3374064           17.11%             0 /  0 /  0

[INFO GRT-0018] Total wirelength: 28806216 um
[INFO GRT-0014] Routed nets: 314920
Perform buffer insertion...
[INFO RSZ-0058] Using max wire length 2141um.
[ERROR GRT-0232] Routing congestion too high. Check the congestion heatmap in the GUI.
Error: global_route.tcl, 138 GRT-0232
Command exited with non-zero status 1
Elapsed time: 1:41:32[h:]min:sec. CPU time: user 5784.14 sys 305.97 (99%). Peak memory: 5691696KB.

Screenshots

No response

Additional Context

one thing to mention I have currently 8gb ram with which i have made 4 gb swap I will be ordering more 8gb to upgrade if the issue is due to it.