Cosmos3-Edge-Policy-DROID โ€” FastWAM-K2 + IsaacSim (v6), step 12000

K=2 leading-K ์ฒดํฌํฌ์ธํŠธ(โ€ฆ-FastWAM-K2/step12000)์—์„œ warm startํ•ด IsaacSim Franka ๋ฐ์ดํ„ฐ๋ฅผ ์„ž์–ด ๊ณ„์† ํ•™์Šตํ•œ arm์˜ ์ค‘๊ฐ„ ์ฒดํฌํฌ์ธํŠธ์ž…๋‹ˆ๋‹ค. ์ด ๋Ÿฐ์˜ 12000 iter ์ค‘ 100% ์ง€์ ์ด๋ฉฐ (K=2 arm์˜ 12,000 iter๋ฅผ ๋”ํ•˜๋ฉด ๋ˆ„์  12000+12,000), ํ‰๊ฐ€์šฉ ์Šค๋ƒ…์ƒท์ด์ง€ ์ตœ์ข… ์‚ฐ์ถœ๋ฌผ์ด ์•„๋‹™๋‹ˆ๋‹ค.

  • step๋ณ„ ํ•˜์œ„ ํด๋”(step12000/)์— ๋ˆ„์ . ๋ฃจํŠธ README๋Š” ์ตœ๊ทผ step์„ ๊ฐ€๋ฆฌํ‚ต๋‹ˆ๋‹ค.
  • EMA ๊ฐ€์ค‘์น˜ ๊ธฐ์ค€ export, training state ์—†์Œ โ€” pretrained model ํŒŒ์ผ๋งŒ.

โš ๏ธ ์„œ๋น™ ์‹œ ํ•„์ˆ˜ ์ธ์ž

python -m cosmos_framework.scripts.action_policy_server_robolab \
    --checkpoint-path "$ckpt" --port 8000 \
    --format-prompt-as-json True --no-guardrails \
    --keep-generated-vision-frames 2        # โ† --drop-generated-vision ์ด ์•„๋‹˜

K=2 ์ €์žฅ์†Œ์™€ ๋™์ผํ•œ ์‹œํ€€์Šค(conditioning ํ”„๋ ˆ์ž„ + ์„ ํ–‰ ์ƒ์„ฑ 2 latent ํ”„๋ ˆ์ž„, ํ”„๋ ˆ์ž„๋‹น 340 ํ† ํฐ, ์‹œํ€€์Šค 1,211)์ž…๋‹ˆ๋‹ค.

์ด arm์ด ๋ฌป๋Š” ๊ฒƒ

K=2 arm์€ ๋‹ต์„ ๋ƒˆ์Šต๋‹ˆ๋‹ค: nvidia base์—์„œ K=2๋กœ 12k ํ•™์Šตํ•˜๋ฉด RoboLab 12ํƒœ์Šคํฌ 34.4% [26.2, 42.6]๋กœ baseline 36.5%์™€ ๊ตฌ๋ถ„๋˜์ง€ ์•Š๊ณ (p=0.88) ์•ฝ 2.4๋ฐฐ ๋น ๋ฆ…๋‹ˆ๋‹ค. ๋‚จ์€ ์ฒœ์žฅ์€ base ์ž์ฒด์ž…๋‹ˆ๋‹ค โ€” 12ํƒœ์Šคํฌ ์ค‘ 5๊ฐœ๋Š” full-WAM base์—์„œ๋„ 0%(BlocksInBin, CondimentsInBin, SpoonInMug, Stack3RubiksCube, FruitsMoving). leading-K ํ•™์Šต์€ ๋Šฅ๋ ฅ์„ ์œ ์ง€ํ•  ๋ฟ ๋”ํ•˜์ง€ ๋ชปํ•ฉ๋‹ˆ๋‹ค.

์ด arm์€ K=2 ์ฒดํฌํฌ์ธํŠธ ์œ„์— ์ด ํ˜ธ์ŠคํŠธ์— ์žˆ๋Š” ์œ ์ผํ•œ ํƒ€๊นƒ ๋„๋ฉ”์ธ ๋ฐ์ดํ„ฐ(IsaacSim Franka)๋ฅผ ๋”ํ•ด Isaac ๋ Œ๋”๋งยท๋กœ๋ด‡ ๋„๋ฉ”์ธ ์ ์‘์ด RoboLab ์ ์ˆ˜๋ฅผ ์›€์ง์ด๋Š”์ง€๋ฅผ ๋ด…๋‹ˆ๋‹ค.

๊ธฐ๋Œ€์น˜๋ฅผ ์ •์งํ•˜๊ฒŒ ์ ์Šต๋‹ˆ๋‹ค. ์‚ฌ์šฉํ•œ sim ํ’€์€ open-cabinet-left / open-cabinet-right / open-drawer 3๊ฐœ ํƒœ์Šคํฌ์ด๊ณ  RoboLab ํƒœ์Šคํฌ(์ „๋ถ€ pick-and-place / stacking)์™€ ๊ฒน์น˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค. ๋”ฐ๋ผ์„œ ์ด arm์€ ๋„๋ฉ”์ธ ์ ์‘์„ ๊ฒ€์ฆํ•  ์ˆ˜ ์žˆ์ง€๋งŒ ํƒœ์Šคํฌ๋ฅผ ๊ฐ€๋ฅด์น˜์ง€๋Š” ๋ชปํ•ฉ๋‹ˆ๋‹ค. 0% ํƒœ์Šคํฌ๋ฅผ ์˜ฌ๋ฆฌ๋ ค๋ฉด RoboLab ๋„๋ฉ”์ธ์˜ ํ•ด๋‹น ํƒœ์Šคํฌ ์‹œ์—ฐ์ด ํ•„์š”ํ•ฉ๋‹ˆ๋‹ค.

๋ฐ์ดํ„ฐ

ํ’€ ๋น„์œจ rank ๋‚ด์šฉ
DROID 3 0โ€“5 nvidia/Cosmos3-DROID success + failure, ๊ณต์‹ keep_ranges_1_0_1 ํ•„ํ„ฐ. failure๋Š” video ๋ชฉ์ ํ•จ์ˆ˜์—๋งŒ ๊ธฐ์—ฌ
sim 1 6โ€“7 nvidia/PhysicalAI-Robotics-Manipulation-SingleArm์˜ ๊ด€์ ˆ ์•ก์…˜ ์„œ๋ธŒ์…‹ 3๊ฐœ(Franka Panda, IsaacSim) 4,211 ep / 300,665 ํ”„๋ ˆ์ž„์„ DROID ์Šคํ‚ค๋งˆ๋กœ ๋ณ€ํ™˜. success๋งŒ

RankPartitionedDataLoader๋Š” rank ๋‹จ์œ„๋กœ ๋ถ„ํ• ํ•˜๋ฏ€๋กœ 8 GPU์—์„œ 3:1์€ DROID 6 rank, sim 2 rank (์ƒ˜ํ”Œ์˜ 25%)์ž…๋‹ˆ๋‹ค. 3:1์„ ๋ณด์ˆ˜์ ์œผ๋กœ ์žก์€ ์ด์œ : sim ๋กœ๋ด‡์˜ ํ”„๋ ˆ์ž„๋‹น ์ด๋™๋Ÿ‰์ด DROID ํ…”๋ ˆ์˜คํผ๋ ˆ์ด์…˜์˜ ์•ฝ 6๋ฐฐ(0.0386 vs 0.0061 rad)์ด๊ณ  joint[4]๊ฐ€ ํ”„๋ ˆ์ž„์˜ 14.8%์—์„œ DROID ์ •๊ทœํ™” ๋ฒ”์œ„ ๋ฐ–์ž…๋‹ˆ๋‹ค. ๋ณ€ํ™˜๊ธฐ๋Š” ์†Œ์Šค์˜ ๊ด€์ ˆ ๋ธํƒ€๋ฅผ ์ ˆ๋Œ€ ๋ชฉํ‘œ๊ฐ’์œผ๋กœ ์ ๋ถ„ํ–ˆ์Šต๋‹ˆ๋‹ค.

ํ•™์Šต ์„ค์ •

ํ•ญ๋ชฉ ๊ฐ’
experiment action_policy_droid_edge_ft_fastwam_v2 + optimizer.lr=1e-5 + K override
K two_pass_keep_generated_vision_frames=2 (๋ž˜ํผ hydra override)
์‹œ์ž‘์  geonmin-kim/Cosmos3-Edge-Policy-DROID-FastWAM-K2 step12000์˜ EMA ๊ฐ€์ค‘์น˜ (load_ema_to_reg), optimizer ์ƒˆ๋กœ ์‹œ์ž‘
two-pass pass B action FM (action_loss_weight=10), pass A vision FM (loss_scale=1)
optimizer FusedAdamW, lr 1e-5, ์•ก์…˜ ๋ธŒ๋ฆฟ์ง€ 3๊ฐœ์— 5ร—
scheduler LambdaLinear, warm-up 1000, cycle 12000 (lr 1e-5@1k โ†’ 8.36e-6@3k โ†’ 5.91e-6@6k โ†’ 3.45e-6@9k โ†’ 1e-6@12k)
๋ฐฐ์น˜ FSDP shard 8 ร— 16 ร— grad_accum 1 = 128 (K=2 arm์€ 64)
ํ•˜๋“œ์›จ์–ด B300 ร—8

ํ‰๊ฐ€ ์ฃผ์˜

  • loss ๊ณก์„ ์œผ๋กœ ํŒ์ •ํ•˜์ง€ ๋งˆ์‹ญ์‹œ์˜ค โ€” ๋งค์นญํ˜• ๋ชฉ์ ํ•จ์ˆ˜๋ผ ๊ณก์„ ์ด ํ‰ํƒ„ํ•ฉ๋‹ˆ๋‹ค.
  • open-loop MAE๋Š” ์ด ํ”„๋กœ์ ํŠธ์—์„œ ์„ธ ๋ฒˆ ๋ฐฉํ–ฅ์„ ๋ฐ˜๋Œ€๋กœ ๊ฐ€๋ฆฌ์ผฐ์Šต๋‹ˆ๋‹ค. ํŒ์ • ๊ธฐ์ค€์€ RoboLab์ž…๋‹ˆ๋‹ค.
  • 2ํƒœ์Šคํฌ(RubiksCubesInBinยทStackYellowOnRed) ์Šคํฌ๋ฆฌ๋‹์€ FastWAM ๊ฒฉ์ฐจ์˜ ํšŒ๊ท€ ํ™•์ธ์šฉ์ž…๋‹ˆ๋‹ค. ์ด arm์˜ ๊ฐ€์„ค(๋„๋ฉ”์ธ ์ ์‘)์€ ๊ทธ ๋‘ ํƒœ์Šคํฌ๋กœ๋Š” ๋ณด์ด์ง€ ์•Š์œผ๋ฏ€๋กœ 12ํƒœ์Šคํฌ ์ „์ฒด๋กœ ํŒ์ •ํ•˜์‹ญ์‹œ์˜ค.
  • n=96์—์„œ ยฑ9pp๋Š” ๋…ธ์ด์ฆˆ์ž…๋‹ˆ๋‹ค. ์ฒดํฌํฌ์ธํŠธ ๋น„๊ต๋Š” ์ ์‘ ์ƒ˜ํ”Œ๋ง (--num-episodes-adaptive 200 --ci-pp-width 0.14)์œผ๋กœ ํ•˜์‹ญ์‹œ์˜ค.
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