我正在Tensorflow中尝试一些图像超分辨率CNN。最初，我使用一个密集的网（总共2276060个参数）作为模型，并且运行良好。然后，我将模型更改为参数较少（总计951425）的修改后的DBPN，并遇到错误：
tensorflow.python.framework.errors_impl.InternalError: Dst tensor is not initialized.
这是根据this answer的内存不足引起的。
我很困惑，为什么较小的模型却导致较大的内存消耗？我能弄清楚的唯一原因是DBPN具有比密集网络更多的Ops。 Tensorflow是否根据Ops的数量而不是参数的数量分配内存？
我使用的两个模型的结构和参数如下：
密集网：
param 0: Interp/shallow1/W_conv3d:0 (3, 3, 3, 1, 64) float32_ref
param 1: Interp/shallow1/b_conv3d:0 (64,) float32_ref
param 2: Interp/shallow2/W_conv3d:0 (3, 3, 3, 64, 64) float32_ref
param 3: Interp/shallow2/b_conv3d:0 (64,) float32_ref
param 4: Interp/rdb1/conv1/W_conv3d:0 (3, 3, 3, 64, 64) float32_ref
param 5: Interp/rdb1/conv1/b_conv3d:0 (64,) float32_ref
param 6: Interp/rdb1/conv2/W_conv3d:0 (3, 3, 3, 128, 64) float32_ref
param 7: Interp/rdb1/conv2/b_conv3d:0 (64,) float32_ref
param 8: Interp/rdb1/conv3/W_conv3d:0 (3, 3, 3, 192, 64) float32_ref
param 9: Interp/rdb1/conv3/b_conv3d:0 (64,) float32_ref
param 10: Interp/rdb1/conv4/W_conv3d:0 (1, 1, 1, 256, 64) float32_ref
param 11: Interp/rdb1/conv4/b_conv3d:0 (64,) float32_ref
param 12: Interp/rdb2/conv1/W_conv3d:0 (3, 3, 3, 64, 64) float32_ref
param 13: Interp/rdb2/conv1/b_conv3d:0 (64,) float32_ref
param 14: Interp/rdb2/conv2/W_conv3d:0 (3, 3, 3, 128, 64) float32_ref
param 15: Interp/rdb2/conv2/b_conv3d:0 (64,) float32_ref
param 16: Interp/rdb2/conv3/W_conv3d:0 (3, 3, 3, 192, 64) float32_ref
param 17: Interp/rdb2/conv3/b_conv3d:0 (64,) float32_ref
param 18: Interp/rdb2/conv4/W_conv3d:0 (1, 1, 1, 256, 64) float32_ref
param 19: Interp/rdb2/conv4/b_conv3d:0 (64,) float32_ref
param 20: Interp/rdb3/conv1/W_conv3d:0 (3, 3, 3, 64, 64) float32_ref
param 21: Interp/rdb3/conv1/b_conv3d:0 (64,) float32_ref
param 22: Interp/rdb3/conv2/W_conv3d:0 (3, 3, 3, 128, 64) float32_ref
param 23: Interp/rdb3/conv2/b_conv3d:0 (64,) float32_ref
param 24: Interp/rdb3/conv3/W_conv3d:0 (3, 3, 3, 192, 64) float32_ref
param 25: Interp/rdb3/conv3/b_conv3d:0 (64,) float32_ref
param 26: Interp/rdb3/conv4/W_conv3d:0 (1, 1, 1, 256, 64) float32_ref
param 27: Interp/rdb3/conv4/b_conv3d:0 (64,) float32_ref
param 28: Interp/gff/conv1/W_conv3d:0 (1, 1, 1, 192, 64) float32_ref
param 29: Interp/gff/conv1/b_conv3d:0 (64,) float32_ref
param 30: Interp/gff/conv2/W_conv3d:0 (3, 3, 3, 64, 64) float32_ref
param 31: Interp/gff/conv2/b_conv3d:0 (64,) float32_ref
param 32: Interp/out/W_conv3d:0 (3, 3, 3, 1, 1) float32_ref
param 33: Interp/out/b_conv3d:0 (1,) float32_ref
num of params: 2276060
DBPN
param 0: Interp/feat0/W_conv3d:0 (3, 3, 3, 1, 64) float32_ref
param 1: Interp/feat0/b_conv3d:0 (64,) float32_ref
param 2: Interp/feat1/W_conv3d:0 (1, 1, 1, 64, 32) float32_ref
param 3: Interp/feat1/b_conv3d:0 (32,) float32_ref
param 4: Interp/up1/deconv1/W_deconv3d:0 (3, 3, 3, 32, 32) float32_ref
param 5: Interp/up1/deconv1/b_deconv3d:0 (32,) float32_ref
param 6: Interp/up1/conv/W_conv3d:0 (3, 3, 3, 32, 32) float32_ref
param 7: Interp/up1/conv/b_conv3d:0 (32,) float32_ref
param 8: Interp/up1/deconv2/W_deconv3d:0 (3, 3, 3, 32, 32) float32_ref
param 9: Interp/up1/deconv2/b_deconv3d:0 (32,) float32_ref
param 10: Interp/down1/conv1/W_conv3d:0 (3, 3, 3, 32, 32) float32_ref
param 11: Interp/down1/conv1/b_conv3d:0 (32,) float32_ref
param 12: Interp/down1/deconv/W_deconv3d:0 (3, 3, 3, 32, 32) float32_ref
param 13: Interp/down1/deconv/b_deconv3d:0 (32,) float32_ref
param 14: Interp/down1/conv2/W_conv3d:0 (3, 3, 3, 32, 32) float32_ref
param 15: Interp/down1/conv2/b_conv3d:0 (32,) float32_ref
param 16: Interp/up2/deconv1/W_deconv3d:0 (3, 3, 3, 32, 32) float32_ref
param 18: Interp/up2/conv/W_conv3d:0 (3, 3, 3, 32, 32) float32_ref
param 19: Interp/up2/conv/b_conv3d:0 (32,) float32_ref
param 20: Interp/up2/deconv2/W_deconv3d:0 (3, 3, 3, 32, 32) float32_ref
param 21: Interp/up2/deconv2/b_deconv3d:0 (32,) float32_ref
param 22: Interp/down2/conv/W_conv3d:0 (1, 1, 1, 64, 32) float32_ref
param 23: Interp/down2/conv/b_conv3d:0 (32,) float32_ref
param 24: Interp/down2/down_conv1/W_conv3d:0 (3, 3, 3, 32, 32) float32_ref
param 25: Interp/down2/down_conv1/b_conv3d:0 (32,) float32_ref
param 26: Interp/down2/down_conv2/W_deconv3d:0 (3, 3, 3, 32, 32) float32_ref
param 27: Interp/down2/down_conv2/b_deconv3d:0 (32,) float32_ref
param 28: Interp/down2/down_conv3/W_conv3d:0 (3, 3, 3, 32, 32) float32_ref
param 29: Interp/down2/down_conv3/b_conv3d:0 (32,) float32_ref
param 30: Interp/up3/conv/W_conv3d:0 (1, 1, 1, 64, 32) float32_ref
param 31: Interp/up3/conv/b_conv3d:0 (32,) float32_ref
param 32: Interp/up3/up_conv1/W_deconv3d:0 (3, 3, 3, 32, 32) float32_ref
param 33: Interp/up3/up_conv1/b_deconv3d:0 (32,) float32_ref
param 34: Interp/up3/up_conv2/W_conv3d:0 (3, 3, 3, 32, 32) float32_ref
param 35: Interp/up3/up_conv2/b_conv3d:0 (32,) float32_ref
param 36: Interp/up3/up_conv3/W_deconv3d:0 (3, 3, 3, 32, 32) float32_ref
param 37: Interp/up3/up_conv3/b_deconv3d:0 (32,) float32_ref
param 38: Interp/down3/conv/W_conv3d:0 (1, 1, 1, 96, 32) float32_ref
param 39: Interp/down3/conv/b_conv3d:0 (32,) float32_ref
param 40: Interp/down3/down_conv1/W_conv3d:0 (3, 3, 3, 32, 32) float32_ref
param 41: Interp/down3/down_conv1/b_conv3d:0 (32,) float32_ref
param 42: Interp/down3/down_conv2/W_deconv3d:0 (3, 3, 3, 32, 32) float32_ref
param 43: Interp/down3/down_conv2/b_deconv3d:0 (32,) float32_ref
param 44: Interp/down3/down_conv3/W_conv3d:0 (3, 3, 3, 32, 32) float32_ref
param 45: Interp/down3/down_conv3/b_conv3d:0 (32,) float32_ref
param 46: Interp/up4/conv/W_conv3d:0 (1, 1, 1, 96, 32) float32_ref
param 47: Interp/up4/conv/b_conv3d:0 (32,) float32_ref
param 48: Interp/up4/up_conv1/W_deconv3d:0 (3, 3, 3, 32, 32) float32_ref
param 49: Interp/up4/up_conv1/b_deconv3d:0 (32,) float32_ref
param 50: Interp/up4/up_conv2/W_conv3d:0 (3, 3, 3, 32, 32) float32_ref
param 51: Interp/up4/up_conv2/b_conv3d:0 (32,) float32_ref
param 52: Interp/up4/up_conv3/W_deconv3d:0 (3, 3, 3, 32, 32) float32_ref
param 53: Interp/up4/up_conv3/b_deconv3d:0 (32,) float32_ref
param 54: Interp/down4/conv/W_conv3d:0 (1, 1, 1, 128, 32) float32_ref
param 55: Interp/down4/conv/b_conv3d:0 (32,) float32_ref
param 56: Interp/down4/down_conv1/W_conv3d:0 (3, 3, 3, 32, 32) float32_ref
param 57: Interp/down4/down_conv1/b_conv3d:0 (32,) float32_ref
param 58: Interp/down4/down_conv2/W_deconv3d:0 (3, 3, 3, 32, 32) float32_ref
param 59: Interp/down4/down_conv2/b_deconv3d:0 (32,) float32_ref
param 60: Interp/down4/down_conv3/W_conv3d:0 (3, 3, 3, 32, 32) float32_ref
param 61: Interp/down4/down_conv3/b_conv3d:0 (32,) float32_ref
param 62: Interp/up5/conv/W_conv3d:0 (1, 1, 1, 128, 32) float32_ref
param 63: Interp/up5/conv/b_conv3d:0 (32,) float32_ref
param 64: Interp/up5/up_conv1/W_deconv3d:0 (3, 3, 3, 32, 32) float32_ref
param 65: Interp/up5/up_conv1/b_deconv3d:0 (32,) float32_ref
param 66: Interp/up5/up_conv2/W_conv3d:0 (3, 3, 3, 32, 32) float32_ref
param 67: Interp/up5/up_conv2/b_conv3d:0 (32,) float32_ref
param 68: Interp/up5/up_conv3/W_deconv3d:0 (3, 3, 3, 32, 32) float32_ref
param 69: Interp/up5/up_conv3/b_deconv3d:0 (32,) float32_ref
param 70: Interp/down5/conv/W_conv3d:0 (1, 1, 1, 160, 32) float32_ref
param 71: Interp/down5/conv/b_conv3d:0 (32,) float32_ref
param 72: Interp/down5/down_conv1/W_conv3d:0 (3, 3, 3, 32, 32) float32_ref
param 73: Interp/down5/down_conv1/b_conv3d:0 (32,) float32_ref
param 74: Interp/down5/down_conv2/W_deconv3d:0 (3, 3, 3, 32, 32) float32_ref
param 75: Interp/down5/down_conv2/b_deconv3d:0 (32,) float32_ref
param 76: Interp/down5/down_conv3/W_conv3d:0 (3, 3, 3, 32, 32) float32_ref
param 77: Interp/down5/down_conv3/b_conv3d:0 (32,) float32_ref
param 78: Interp/up6/conv/W_conv3d:0 (1, 1, 1, 160, 32) float32_ref
param 79: Interp/up6/conv/b_conv3d:0 (32,) float32_ref
param 80: Interp/up6/up_conv1/W_deconv3d:0 (3, 3, 3, 32, 32) float32_ref
param 81: Interp/up6/up_conv1/b_deconv3d:0 (32,) float32_ref
param 82: Interp/up6/up_conv2/W_conv3d:0 (3, 3, 3, 32, 32) float32_ref
param 83: Interp/up6/up_conv2/b_conv3d:0 (32,) float32_ref
param 84: Interp/up6/up_conv3/W_deconv3d:0 (3, 3, 3, 32, 32) float32_ref
param 85: Interp/up6/up_conv3/b_deconv3d:0 (32,) float32_ref
param 86: Interp/output_conv/W_conv3d:0 (3, 3, 3, 192, 1) float32_ref
param 87: Interp/output_conv/b_conv3d:0 (1,) float32_ref
num of params: 951425