weepiess2383/arc-layer-selector-grid

Archive: layer-selector-grid

EMA-consolidated research checkpoint archive.

Layer-selection grid: pinned per-source K/V norm on/off (lsel_pin), sel28 e/f/s arms, and the select28_bb noise/freeze cells (n0f0, n0f1, n1e28, n1f0, n1f1, n1unif). Verdict: the selector objective is flat -- 6 inits reach ~chance with different maps at identical loss; fixed first-28 is the shipped configuration.

Each *.shards.stepNNNNNN/state.pt holds only the EMA payload (state['extra']['ema'], fp32, clean names) extracted from the original training checkpoint, fingerprint-verified against engine_meta.pt. Loadable directly by methods/lafm/vla_flow_ft.py:load_pretrain_trainables with init_use_ema=true. Optimizer states were not retained.

Manifest

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    "step_dir": "lafm_vla_flow_neo2b_lsel_pin_normoff_weights.ckpt.shards.step000007500",
    "source": "ema",
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  {
    "run": "lafm_vla_flow_neo2b_lsel_pin_normoff_20260820_083159",
    "step_dir": "lafm_vla_flow_neo2b_lsel_pin_normoff_weights.ckpt.shards.step000010000",
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  {
    "run": "lafm_vla_flow_neo2b_lsel_pin_normoff_20260820_103115",
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  {
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    "run": "lafm_vla_flow_neo2b_lsel_pin_normon_20260820_083202",
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  {
    "run": "lafm_vla_flow_neo2b_sel28e_20260820_2304",
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    "run": "lafm_vla_flow_neo2b_sel28f_20260820_2302",
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    "run": "lafm_vla_flow_neo2b_sel28f_20260820_2302",
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  {
    "run": "lafm_vla_flow_neo2b_sel28s_sel28s_20260820_212754",
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