$python tensorflow/models/image/alexnet/alexnet_benchmark.py
conv1   [128, 55, 55, 64]
pool1   [128, 27, 27, 64]
conv2   [128, 27, 27, 192]
pool2   [128, 13, 13, 192]
conv3   [128, 13, 13, 384]
conv4   [128, 13, 13, 256]
conv5   [128, 13, 13, 256]
pool5   [128, 6, 6, 256]
I tensorflow/core/common_runtime/local_device.cc:25] Local device intra op parallelism threads: 12
I tensorflow/core/common_runtime/gpu/gpu_init.cc:88] Found device 0 with properties:
name: GeForce GTX TITAN X
major: 5 minor: 2 memoryClockRate (GHz) 1.2155
pciBusID 0000:02:00.0
Total memory: 12.00GiB
Free memory: 11.87GiB
I tensorflow/core/common_runtime/gpu/gpu_init.cc:88] Found device 1 with properties:
name: GeForce GTX TITAN X
major: 5 minor: 2 memoryClockRate (GHz) 1.2155
pciBusID 0000:01:00.0
Total memory: 12.00GiB
Free memory: 11.48GiB
I tensorflow/core/common_runtime/gpu/gpu_init.cc:112] DMA: 0 1
I tensorflow/core/common_runtime/gpu/gpu_init.cc:122] 0:   Y Y
I tensorflow/core/common_runtime/gpu/gpu_init.cc:122] 1:   Y Y
I tensorflow/core/common_runtime/gpu/gpu_device.cc:643] Creating TensorFlow device (/gpu:0) -> (device: 0, name: GeForce GTX TITAN X, pci bus id: 0000:02:00.0)
I tensorflow/core/common_runtime/gpu/gpu_device.cc:643] Creating TensorFlow device (/gpu:1) -> (device: 1, name: GeForce GTX TITAN X, pci bus id: 0000:01:00.0)
I tensorflow/core/common_runtime/gpu/gpu_region_allocator.cc:47] Setting region size to 12105379226
I tensorflow/core/common_runtime/gpu/gpu_region_allocator.cc:47] Setting region size to 11707422311
I tensorflow/core/common_runtime/local_session.cc:45] Local session inter op parallelism threads: 12
2015-11-11 15:12:12.050468: step 10, duration = 0.092
2015-11-11 15:12:12.965234: step 20, duration = 0.092
2015-11-11 15:12:13.880874: step 30, duration = 0.091
2015-11-11 15:12:14.797399: step 40, duration = 0.091
2015-11-11 15:12:15.712956: step 50, duration = 0.092
2015-11-11 15:12:16.628070: step 60, duration = 0.091
2015-11-11 15:12:17.540383: step 70, duration = 0.091
2015-11-11 15:12:18.455042: step 80, duration = 0.092
2015-11-11 15:12:19.369289: step 90, duration = 0.091
2015-11-11 15:12:20.190375: Forward across 100 steps, 0.091 +/- 0.009 sec / batch
2015-11-11 15:12:26.644652: step 10, duration = 0.301
2015-11-11 15:12:29.677720: step 20, duration = 0.302
2015-11-11 15:12:32.710699: step 30, duration = 0.302
2015-11-11 15:12:35.739121: step 40, duration = 0.302
2015-11-11 15:12:38.767521: step 50, duration = 0.302
2015-11-11 15:12:41.805193: step 60, duration = 0.303
2015-11-11 15:12:44.848461: step 70, duration = 0.305
2015-11-11 15:12:47.894143: step 80, duration = 0.305
2015-11-11 15:12:50.940088: step 90, duration = 0.302
2015-11-11 15:12:53.689567: Forward-backward across 100 steps, 0.301 +/- 0.030 sec / batch