Several comments here.
- For detectnet_v2, during training, there should be printing log for AP, mAP or loss. Please double check if you enable below. It will print AP or mAP info every 10 epochs.
validation_period_during_training: 10 first_validation_epoch: 1
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For tensorboard, please refer to Output file when training detectnet 2
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For retinanet, there should be training logs. Can you elaborate your issue, why did you say there is no training logs?