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hive-chip-flow (Hive-RSI-Lab)VerificationConfidence: Medium

Monte Carlo mismatch on a user subcircuit with m=4 still gets one unit mismatch, 3.94 mV against 2.22 mV for the equivalent single device. The mean is right and only sigma is wrong, so nothing looks broken. The script skips hierarchical m= on purpose and does not report that it did.

Impact Analysis

Persona
Hardware Engineer
Team Size Impact
5x Multiplier
Prototype Delay
3 Days
Est. Annual Cost
$30,000
  • 1 user · 1 month240 min
  • Rest of team960 min
  • Rest of year13,200 min

monthly_minutes × 12 × team_multiplier ÷ 60 × $75/hr = $30k/yr

$75/hr assumed rate.

Annual team-minutes decomposed from the reported monthly inputs.

Evidence & Sources

1 Sources
Hive-RSI-Lab/hive-chip-flow Issue #144: mc: m=N on a user subckt still gets one unit's mismatch (the par=N fix of #98 covers flat MOS instances only)
github.com
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Analyst Notes

From the Grok pain-radar digests, Oct 31-Nov 1 2026 (Oct 31 9:41 PM ET through Nov 1 7:41 AM ET digests plus the Haitch overnight edition). Verified live 2026-11-01: issue/PR read; title and state confirmed.