gt3-backside-route-policy

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Actualizado8 de marzo de 2026 a las 03:05

Apply and validate GT3 backside routing policy in Innovus. Use when configuring CTS/PDN/signal layer usage, submitting GT3 consistency runs, diagnosing zero-backside-nets, or enforcing BPR-reserved-for-PDN constraints.

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Mr-Fang-VLSI

Mr-Fang-VLSI/EDAgent

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SKILL.md

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name	gt3-backside-route-policy
description	Apply and validate GT3 backside routing policy in Innovus. Use when configuring CTS/PDN/signal layer usage, submitting GT3 consistency runs, diagnosing zero-backside-nets, or enforcing BPR-reserved-for-PDN constraints.

GT3 Backside Route Policy

Apply this policy for GT3 experiments unless the task brief explicitly overrides it.

Policy defaults

Keep CTS route on M4/M5.
Keep PDN on high layers (BSPDN_HI => M6/M7).
Reserve BPR for PDN.
Allow backside signal routing on BM2/BM1 only (index 1..2).
Treat BM2 -> BM1 -> M0 -> M1 as the current working signal-entry hypothesis until disproved by a topology-validity gate.
Do not assume direct BM1 -> M1 connectivity without explicit tool or techlef evidence.

Submit controlled run

ROOT=/mnt/research/Hu_Jiang/Students/Fang_Donghao/TAMU-ASAP07-BSPDN-BPR-V0.00
cd "$ROOT"

TASK_BRIEF=<task_brief_md> \
BACKSIDE_SIGNAL_NET_FILE=<net_list_txt> \
BACKSIDE_SIGNAL_NET_BOTTOM_INDEX=1 \
BACKSIDE_SIGNAL_NET_TOP_INDEX=2 \
bash scripts/debug/submit_gt3_route_rc_consistency.sh <design> <run_tag>

Monitor outputs:

slurm_logs/04_delay_modeling/<run_tag>.monitor.md
slurm_logs/04_delay_modeling/<run_tag>.monitor.history.tsv

Post-run checks

Verify backside signal occupancy appears on BM layers.
Verify signal occupancy does not use BPR.
Verify CTS remains on M4/M5 window.
Verify the run does not rely on an unproven shortcut such as direct BM1-M1.

Load references/policy_checks.md for quick command snippets.

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name	gt3-backside-route-policy
description	Apply and validate GT3 backside routing policy in Innovus. Use when configuring CTS/PDN/signal layer usage, submitting GT3 consistency runs, diagnosing zero-backside-nets, or enforcing BPR-reserved-for-PDN constraints.

GT3 Backside Route Policy

Apply this policy for GT3 experiments unless the task brief explicitly overrides it.

Policy defaults

Keep CTS route on M4/M5.
Keep PDN on high layers (BSPDN_HI => M6/M7).
Reserve BPR for PDN.
Allow backside signal routing on BM2/BM1 only (index 1..2).
Treat BM2 -> BM1 -> M0 -> M1 as the current working signal-entry hypothesis until disproved by a topology-validity gate.
Do not assume direct BM1 -> M1 connectivity without explicit tool or techlef evidence.

Submit controlled run

ROOT=/mnt/research/Hu_Jiang/Students/Fang_Donghao/TAMU-ASAP07-BSPDN-BPR-V0.00
cd "$ROOT"

TASK_BRIEF=<task_brief_md> \
BACKSIDE_SIGNAL_NET_FILE=<net_list_txt> \
BACKSIDE_SIGNAL_NET_BOTTOM_INDEX=1 \
BACKSIDE_SIGNAL_NET_TOP_INDEX=2 \
bash scripts/debug/submit_gt3_route_rc_consistency.sh <design> <run_tag>

Monitor outputs:

slurm_logs/04_delay_modeling/<run_tag>.monitor.md
slurm_logs/04_delay_modeling/<run_tag>.monitor.history.tsv

Post-run checks

Verify backside signal occupancy appears on BM layers.
Verify signal occupancy does not use BPR.
Verify CTS remains on M4/M5 window.
Verify the run does not rely on an unproven shortcut such as direct BM1-M1.

Load references/policy_checks.md for quick command snippets.