Lottery Jackpots Exist in Pre-trained Models

Requirements

• Python >= 3.7.4
• Pytorch >= 1.6.1
• Torchvision >= 0.4.1

Reproduce the Experiment Results

1. Download the pre-trained models from this link and place them in the pre-train folder.

2. Select a configuration file in configs to reproduce the experiment results reported in the paper. For example, to find a lottery jackpot with 30 epochs for pruning 95% parameters of ResNet-32 on CIFAR-10, run:

   python cifar.py --config configs/resnet32_cifar10/90sparsity30epoch.yaml --gpus 0

   To find a lottery jackpot with 30 epochs for pruning 90% parameters of ResNet-50 on ImageNet, run:

   python imagenet.py --config configs/resnet50_imagenet/90sparsity30epoch.yaml --gpus 0

   To further tune the weights of a searched lottery jackpot with 10 epochs for pruning 90% parameters of ResNet-50 on ImageNet, run:

   python imagenet-t.py --config configs/resnet50_imagenet/90sparsity30s10t.yaml --gpus 0

   Note that the data_path in the yaml file should be changed to the data.

Evaluate Our Pruned Models

We provide configuration, training logs, and pruned models reported in the paper. They can be downloaded from the provided links in the following table:

Model	Dataset	Sparsity	Epoch	Top-1 Acc.	Link
VGGNet-19	CIFAR-10	90%	30(S)	93.88%	link
VGGNet-19	CIFAR-10	90%	160(S)	93.94%	link
VGGNet-19	CIFAR-10	95%	30(S)	93.49%	link
VGGNet-19	CIFAR-10	95%	160(S)	93.74%	link
VGGNet-19	CIFAR-100	90%	30(S)	72.59%	link
VGGNet-19	CIFAR-100	90%	160(S)	74.61%	link
VGGNet-19	CIFAR-100	95%	30(S)	71.76%	link
VGGNet-19	CIFAR-100	95%	160(S)	73.35%	link
ResNet-32	CIFAR-10	90%	30(S)	93.70%	link
ResNet-32	CIFAR-10	90%	160(S)	94.39%	link
ResNet-32	CIFAR-10	95%	30(S)	92.90%	link
ResNet-32	CIFAR-10	95%	160(S)	93.41%	link
ResNet-32	CIFAR-100	90%	30(S)	72.22%	link
ResNet-32	CIFAR-100	90%	160(S)	73.43%	link
ResNet-32	CIFAR-100	95%	30(S)	69.38%	link
ResNet-32	CIFAR-100	95%	160(S)	70.31%	link
ResNet-50	ImageNet	80%	30(S)	75.19%	link
ResNet-50	ImageNet	80%	30(S)+10(T)	76.66%	link
ResNet-50	ImageNet	90%	30(S)	72.43%	link
ResNet-50	ImageNet	90%	30(S)+10(T)	74.62%	link

To test our pruned models, download the pruned models and place them in the ckpt folder.

1. Select a configuration file in configs to test the pruned models. For example, to evaluate a lottery jackpot for pruning ResNet-32 on CIFAR-10, run:

   python evaluate.py --config configs/resnet32_cifar10/evaluate.yaml --gpus 0

   To evaluate a lottery jackpot for pruning ResNet-50 on ImageNet, run:

   python evaluate.py --config configs/resnet50_imagenet/evaluate.yaml --gpus 0