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debug: print lora_A norm after loading to confirm adapter applied

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Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Ethanfel
2026-04-05 23:05:23 +02:00
parent 4806daa4ca
commit 423e174b88
1 changed files with 9 additions and 0 deletions
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nodes/selva_lora_loader.py
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@@ -78,6 +78,15 @@ class SelvaLoraLoader:
) )
load_lora(generator, state_dict) load_lora(generator, state_dict)
# Sanity check: confirm lora_A weights are non-zero (lora_B starts at zero by design)
norms = [p.norm().item() for name, p in generator.named_parameters()
if "lora_A" in name]
if norms:
print(f"[SelVA LoRA] lora_A weight norms: min={min(norms):.4f} "
f"max={max(norms):.4f} mean={sum(norms)/len(norms):.4f}", flush=True)
else:
print("[SelVA LoRA] WARNING: no lora_A params found after loading!", flush=True)
# Apply strength scaling: multiply all lora_B params by strength # Apply strength scaling: multiply all lora_B params by strength
# (lora_B is initialised to zero, so scaling A is equivalent but less clean) # (lora_B is initialised to zero, so scaling A is equivalent but less clean)
if strength != 1.0: if strength != 1.0: