关于python：Tensorflow内存不足和CPU / GPU使用率

Tensorflow Out of memory and CPU/GPU usage

我将Tensorflow与Keras结合使用来训练用于对象识别(YOLO)的神经网络。

我编写了模型，并尝试使用keras model.fit_generator()批处理32张416x416x3图像。

我正在使用具有8GB内存的NVIDIA GEFORCE RTX 2070 GPU(Tensorflow使用约6.6 GB)。

但是，当我开始训练模型时，会收到如下消息：

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tensorflow.python.framework.errors_impl.ResourceExhaustedError: OOM when allocating tensor with shape

2019-02-11 16:13:08.051289: W tensorflow/core/common_runtime/bfc_allocator.cc:267] Allocator (GPU_0_bfc) ran out of memory trying to allocate 338.00MiB. Current allocation summary follows.
2019-02-11 16:13:08.057318: I tensorflow/core/common_runtime/bfc_allocator.cc:597] Bin (256): Total Chunks: 1589, Chunks in use: 1589. 397.3KiB allocated for chunks. 397.3KiB in use in bin. 25.2KiB client-requested in use in bin.
2019-02-11 16:13:08.061222: I tensorflow/core/common_runtime/bfc_allocator.cc:597] Bin (512): Total Chunks: 204, Chunks in use: 204. 102.0KiB allocated for chunks. 102.0KiB in use in bin. 100.1KiB client-requested in use in bin.
...
2019-02-11 16:13:08.142674: I tensorflow/core/common_runtime/bfc_allocator.cc:597] Bin (268435456): Total Chunks: 11, Chunks in use: 11. 5.05GiB allocated for chunks. 5.05GiB in use in bin. 4.95GiB client-requested in use in bin.
2019-02-11 16:13:08.148149: I tensorflow/core/common_runtime/bfc_allocator.cc:613] Bin for 338.00MiB was 256.00MiB, Chunk State:
2019-02-11 16:13:08.150474: I tensorflow/core/common_runtime/bfc_allocator.cc:632] Chunk at 000000070B400000 of size 1280
2019-02-11 16:13:08.152627: I tensorflow/core/common_runtime/bfc_allocator.cc:632] Chunk at 000000070B400500 of size 256
2019-02-11 16:13:08.154790: I tensorflow/core/common_runtime/bfc_allocator.cc:632] Chunk at 000000070B400600 of size 256
....
2019-02-11 16:17:38.699526: I tensorflow/core/common_runtime/bfc_allocator.cc:645] Sum Total of in-use chunks: 6.11GiB
2019-02-11 16:17:38.701621: I tensorflow/core/common_runtime/bfc_allocator.cc:647] Stats:
Limit: 6624727531
InUse: 6557567488
MaxInUse: 6590199040
NumAllocs: 3719
MaxAllocSize: 1624768512

2019-02-11 16:17:38.708981: W tensorflow/core/common_runtime/bfc_allocator.cc:271] ****************************************************************************************************
2019-02-11 16:17:38.712172: W tensorflow/core/framework/op_kernel.cc:1412] OP_REQUIRES failed at conv_ops_fused.cc:734 : Resource exhausted: OOM when allocating tensor with shape[16,256,52,52] and type float on /job:localhost/replica:0/task:0/device:GPU:0 by allocator GPU_0_bfc

我只报告了该消息的几行，但显然这是内存使用问题。

也许我应该在生成器功能中使用CPU来读取文件中的图像和标签吗？
在这种情况下该怎么办？

谢谢。