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Add AutoML-based mixed-precision initialization mode - AutoQ (openvin…
…otoolkit#250) * Adaptation of MIT HAN Lab's HAQ: Hardware-Aware Automated Quantization with Mixed Precision * Introduce a Deep Reinforcement Learning algorithm (DDPG) to learn and initialize layer-wise quantization bitwidth, prior to NNCF quantize-aware fine-tuning * The mixed-precision initialization is optimized towards minimal accuracy drop given a user-specified model size constraint * Supported precision depends on target HW (VPU 8/4/2) or user-specified precision space
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examples/classification/configs/mixed_precision/mobilenet_v2_imagenet_mixed_int_autoq.json
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{ | ||
"model": "mobilenet_v2", | ||
"pretrained": true, | ||
"input_info": { | ||
"sample_size": [2, 3, 224, 224] | ||
}, | ||
"num_classes": 1000, | ||
"batch_size" : 128, | ||
"epochs": 5, | ||
"optimizer": { | ||
"type": "Adam", | ||
"base_lr": 0.00001, | ||
"schedule_type": "multistep", | ||
"steps": [ | ||
5 | ||
] | ||
}, | ||
"target_device": "TRIAL", | ||
"compression": { | ||
"algorithm": "quantization", | ||
"weights": { | ||
"mode": "asymmetric", | ||
"bits": 8, | ||
"per_channel": true | ||
}, | ||
"activations": { | ||
"mode": "asymmetric", | ||
"bits": 8, | ||
"per_channel": false | ||
}, | ||
"initializer": { | ||
"batchnorm_adaptation": { | ||
"num_bn_adaptation_samples": 4000 | ||
}, | ||
"range": | ||
{ | ||
"type": "mean_min_max", | ||
"num_init_samples": 1500 | ||
}, | ||
"precision": { | ||
"type": "autoq", | ||
"bits": [2, 4, 8], | ||
"iter_number": 600, | ||
"compression_ratio": 0.15, | ||
"eval_subset_ratio": 0.20, | ||
"dump_init_precision_data": true | ||
} | ||
} | ||
} | ||
} |
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examples/classification/configs/mixed_precision/resnet50_imagenet_mixed_int_autoq.json
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{ | ||
"model": "resnet50", | ||
"pretrained": true, | ||
"input_info": { | ||
"sample_size": [ | ||
1, | ||
3, | ||
224, | ||
224 | ||
] | ||
}, | ||
"num_classes": 1000, | ||
"batch_size" : 128, | ||
"epochs": 30, | ||
"optimizer": { | ||
"base_lr": 0.00031, | ||
"schedule_type": "plateau", | ||
"type": "Adam", | ||
"scheduler_params": { | ||
"threshold": 0.1, | ||
"cooldown": 3 | ||
}, | ||
"weight_decay": 1e-05 | ||
}, | ||
"target_device": "TRIAL", | ||
"compression": { | ||
"algorithm": "quantization", | ||
"weights": { | ||
"mode": "symmetric", | ||
"bits": 8, | ||
"per_channel": true | ||
}, | ||
"activations": { | ||
"mode": "asymmetric", | ||
"bits": 8, | ||
"per_channel": false | ||
}, | ||
"initializer": { | ||
"batchnorm_adaptation": { | ||
"num_bn_adaptation_samples": 4000 | ||
}, | ||
"range": | ||
{ | ||
"type": "mean_min_max", | ||
"num_init_samples": 1500 | ||
}, | ||
"precision": { | ||
"type": "autoq", | ||
"bits": [2, 4, 8], | ||
"iter_number": 600, | ||
"compression_ratio": 0.15, | ||
"eval_subset_ratio": 0.20, | ||
"dump_init_precision_data": true | ||
} | ||
} | ||
} | ||
} |
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