im2txt difference 360k and 870k global steps

mona@pascal:~/computer_vision/mscoco/models/im2txt$ bazel build -c opt im2txt/run_inference
..
INFO: Found 1 target...
Target //im2txt:run_inference up-to-date:
  bazel-bin/im2txt/run_inference
INFO: Elapsed time: 3.577s, Critical Path: 0.02s
mona@pascal:~/computer_vision/mscoco/models/im2txt$ export CUDA_VISIBLE_DEVICES=""
mona@pascal:~/computer_vision/mscoco/models/im2txt$ bazel-bin/im2txt/run_inference \
>   --checkpoint_path=${CHECKPOINT_DIR} \
>   --vocab_file=${VOCAB_FILE} \
>   --input_files=${IMAGE_FILE}
I tensorflow/stream_executor/dso_loader.cc:111] successfully opened CUDA library libcublas.so.8.0 locally
I tensorflow/stream_executor/dso_loader.cc:111] successfully opened CUDA library libcudnn.so.5.0 locally
I tensorflow/stream_executor/dso_loader.cc:111] successfully opened CUDA library libcufft.so.8.0 locally
I tensorflow/stream_executor/dso_loader.cc:111] successfully opened CUDA library libcuda.so.1 locally
I tensorflow/stream_executor/dso_loader.cc:111] successfully opened CUDA library libcurand.so.8.0 locally
E tensorflow/stream_executor/cuda/cuda_driver.cc:491] failed call to cuInit: CUDA_ERROR_NO_DEVICE
I tensorflow/stream_executor/cuda/cuda_diagnostics.cc:153] retrieving CUDA diagnostic information for host: pascal
I tensorflow/stream_executor/cuda/cuda_diagnostics.cc:160] hostname: pascal
I tensorflow/stream_executor/cuda/cuda_diagnostics.cc:185] libcuda reported version is: 367.48.0
I tensorflow/stream_executor/cuda/cuda_diagnostics.cc:356] driver version file contents: """NVRM version: NVIDIA UNIX x86_64 Kernel Module  367.48  Sat Sep  3 18:21:08 PDT 2016
GCC version:  gcc version 4.8.4 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
"""
I tensorflow/stream_executor/cuda/cuda_diagnostics.cc:189] kernel reported version is: 367.48.0
I tensorflow/stream_executor/cuda/cuda_diagnostics.cc:293] kernel version seems to match DSO: 367.48.0
Captions for image COCO_val2014_000000224477.jpg:
  0) two people are standing on rocks , holding a frisbee . (p=0.311219)
  1) the people are surfing the waves with each other (p=0.222864)
  2) two people are standing on the shore next to a body of water . (p=0.091812)
mona@pascal:~/computer_vision/mscoco/models/im2txt$ ls
bazel-bin  bazel-genfiles  bazel-im2txt  bazel-out  bazel-testlogs  evaluation.sh  g3doc  im2txt  README.md  test_images  test_script.sh  WORKSPACE
mona@pascal:~/computer_vision/mscoco/models/im2txt$ bazel-bin/im2txt/run_inference   --checkpoint_path=${CHECKPOINT_DIR}   --vocab_file=${VOCAB_FILE}   --input_files=${IMAGE_FILE}
I tensorflow/stream_executor/dso_loader.cc:111] successfully opened CUDA library libcublas.so.8.0 locally
I tensorflow/stream_executor/dso_loader.cc:111] successfully opened CUDA library libcudnn.so.5.0 locally
I tensorflow/stream_executor/dso_loader.cc:111] successfully opened CUDA library libcufft.so.8.0 locally
I tensorflow/stream_executor/dso_loader.cc:111] successfully opened CUDA library libcuda.so.1 locally
I tensorflow/stream_executor/dso_loader.cc:111] successfully opened CUDA library libcurand.so.8.0 locally
E tensorflow/stream_executor/cuda/cuda_driver.cc:491] failed call to cuInit: CUDA_ERROR_NO_DEVICE
I tensorflow/stream_executor/cuda/cuda_diagnostics.cc:153] retrieving CUDA diagnostic information for host: pascal
I tensorflow/stream_executor/cuda/cuda_diagnostics.cc:160] hostname: pascal
I tensorflow/stream_executor/cuda/cuda_diagnostics.cc:185] libcuda reported version is: 367.48.0
I tensorflow/stream_executor/cuda/cuda_diagnostics.cc:356] driver version file contents: """NVRM version: NVIDIA UNIX x86_64 Kernel Module  367.48  Sat Sep  3 18:21:08 PDT 2016
GCC version:  gcc version 4.8.4 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
"""
I tensorflow/stream_executor/cuda/cuda_diagnostics.cc:189] kernel reported version is: 367.48.0
I tensorflow/stream_executor/cuda/cuda_diagnostics.cc:293] kernel version seems to match DSO: 367.48.0
Captions for image COCO_val2014_000000224477.jpg:
  0) two people are standing on rocks , holding a frisbee . (p=0.544159)
  1) two people are standing on the shore next to a body of water . (p=0.119144)
  2) two people are wind surfing in the ocean . (p=0.096193)