70 lines
2.4 KiB
Python
70 lines
2.4 KiB
Python
"""Verify DSV4Model can be constructed (no forward pass, just init)."""
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import torch
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def test_model_construction():
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from dsv4.model.config import DSV4Config
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from dsv4.model.dsv4 import DSV4Model
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from dsv4.cache.manager import KVCacheManager
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# Flash variant
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config = DSV4Config.flash()
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mgr = KVCacheManager(config, build_schedule(config),
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max_concurrent_requests=1, max_context_tokens=512)
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model = DSV4Model(config, mgr)
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print(f" Flash: {len(model.layers)} layers, {config.num_query_heads} heads, hd={config.head_dim}")
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# Pro variant
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config_pro = DSV4Config.pro()
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mgr_pro = KVCacheManager(config_pro, build_schedule(config_pro),
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max_concurrent_requests=1, max_context_tokens=512)
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model_pro = DSV4Model(config_pro, mgr_pro)
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print(f" Pro: {len(model_pro.layers)} layers, {config_pro.num_query_heads} heads, hd={config_pro.head_dim}")
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def test_model_decode_step():
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"""Test decode_step with synthetic weights (all zeros)."""
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from dsv4.model.config import DSV4Config
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from dsv4.model.dsv4 import DSV4Model
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from dsv4.cache.manager import KVCacheManager
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config = DSV4Config.flash()
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mgr = KVCacheManager(config, build_schedule(config),
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max_concurrent_requests=1, max_context_tokens=512)
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model = DSV4Model(config, mgr)
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# Admit a request
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slot = mgr.admit_request()
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# Single decode step
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token_ids = torch.tensor([0], dtype=torch.int64, device='cuda')
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positions = torch.tensor([0], dtype=torch.int64, device='cuda')
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request_ids = torch.tensor([0], dtype=torch.int32, device='cuda')
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# This will fail at Nvfp4Linear forward (no weights loaded)
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# but the test verifies the model structure is correct
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try:
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logits, mhc_states = model.decode_step(token_ids, positions, request_ids)
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print(f" decode_step: logits shape={logits.shape}")
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except Exception as e:
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# Expected: Nvfp4Linear needs actual NVFP4 weights
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print(f" decode_step: expected error (no weights): {type(e).__name__}: {e}")
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from dsv4.model.layer_schedule import build_schedule
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def test():
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print("=" * 60)
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print("E3: DSV4Model Construction Test")
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print("=" * 60)
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test_model_construction()
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test_model_decode_step()
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print("\n" + "=" * 60)
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print("E3 MODEL CONSTRUCTION TEST DONE")
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print("=" * 60)
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if __name__ == '__main__':
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test()
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