[ Python延迟实例化 ]
Python 的类名可以作为参数直接传递，而不需要实例化，在使用该类对象之前对其进行实例化即可。
* use [ isinstance( object, classinfo) ] can detect whether the object is the instance of the classinfo.
[ Parameter and Hyperparameter ]
Parameter: the parameter inside the model, such as Weight, Bias .etc.
Hyperparameter: the parameter used to describe the model, is the configuration of network, such as the size of the input or output.
[ single-asterisk form of *args ]
def multiply(*args): z = 1 for num in args: z *= num print(z)Convey an argument list to the funcion.
[ The launch command of the first model ]
CUDA_VISIBLE_DEVICES=2,3 \
python main.py \
ucf101 \
data/ucf101/ucf101_train_split1_list.txt \
data/ucf101/ucf101_val_split1_list.txt \
--arch resnet50_3d \
--dro 0.2 \
--mode 3D \
--t_length 16 \
--t_stride 4 \
--pretrained \
--epochs 95 \
--batch-size 64 \
--lr 0.001 \
--lr_steps 40 80 90 \
--workers 16 \
--image_tmpl img_{:05d}.jpg \
* Description: 1) 使用两块Titan x，因此batch-size改为16. 2）workers是数据加载的线程数，根据log中batch的数值，可以判断workers是否合理，合理的情况是内存不超并且batch=0，即批加载时间为0。