Move tf.scan benchmark from contrib/eager/examples to eager/benchmarks_test.py

Eager execution is over 10x slower than defun/graph execution.

bazel run -c opt benchmarks_test -- --benchmarks=MicroBenchmarks.benchmarkScan.*

entry {
  name: "MicroBenchmarks.benchmarkScan"
  iters: 100
  wall_time: 176364.049911
  extras {
    key: "examples_per_sec"
    value {
      double_value: 5.67008979722
    }
  }
}

entry {
  name: "MicroBenchmarks.benchmarkScanDefun"
  iters: 100
  wall_time: 15466.0701752
  extras {
    key: "examples_per_sec"
    value {
      double_value: 64.6576660182
    }
  }
}

The benchmark deleted by this CL measured graph construction time, whereas this CL does not.

PiperOrigin-RevId: 212356196

3 files changed, 0 insertions, 133 deletions

diff --git a/tensorflow/contrib/eager/python/examples/scan/BUILD b/tensorflow/contrib/eager/python/examples/scan/BUILD
deleted file mode 100644
index 638c57d1c9..0000000000
--- a/tensorflow/contrib/eager/python/examples/scan/BUILD
+++ /dev/null
@@ -1,25 +0,0 @@
-licenses(["notice"])  # Apache 2.0
-
-package(default_visibility = ["//tensorflow:internal"])
-
-load("//tensorflow:tensorflow.bzl", "cuda_py_test")
-
-cuda_py_test(
-    name = "scan_test",
-    size = "small",
-    srcs = ["scan_test.py"],
-    additional_deps = [
-        "//third_party/py/numpy",
-        "//tensorflow:tensorflow_py",
-    ],
-)
-
-cuda_py_test(
-    name = "scan_graph_test",
-    size = "small",
-    srcs = ["scan_graph_test.py"],
-    additional_deps = [
-        "//third_party/py/numpy",
-        "//tensorflow:tensorflow_py",
-    ],
-)
diff --git a/tensorflow/contrib/eager/python/examples/scan/scan_graph_test.py b/tensorflow/contrib/eager/python/examples/scan/scan_graph_test.py
deleted file mode 100644
index d4b8c8941e..0000000000
--- a/tensorflow/contrib/eager/python/examples/scan/scan_graph_test.py
+++ /dev/null
@@ -1,54 +0,0 @@
-# Copyright 2018 The TensorFlow Authors. All Rights Reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-# ==============================================================================
-"""Unit test for tf.scan under graph mode execution."""
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
-
-import time
-
-import numpy as np
-import tensorflow as tf
-
-
-class ScanBenchmark(tf.test.Benchmark):
-
-  def runScan(self, n):
-    elems = np.arange(n)
-    start_time = time.time()
-    sum_op = tf.scan(lambda a, x: a + x, elems, parallel_iterations=1)
-    with tf.Session() as sess:
-      sess.run(sum_op)
-    wall_time = time.time() - start_time
-
-    self.report_benchmark(
-        name='scan',
-        iters=n,
-        wall_time=wall_time)
-
-  def benchmarkScan16000(self):
-    self.runScan(16000)
-
-  def benchmarkScan32000(self):
-    self.runScan(32000)
-
-  def benchmarkScan64000(self):
-    self.runScan(64000)
-
-  def benchmarkScan128000(self):
-    self.runScan(128000)
-
-if __name__ == '__main__':
-  tf.test.main()
diff --git a/tensorflow/contrib/eager/python/examples/scan/scan_test.py b/tensorflow/contrib/eager/python/examples/scan/scan_test.py
deleted file mode 100644
index a02fc24c79..0000000000
--- a/tensorflow/contrib/eager/python/examples/scan/scan_test.py
+++ /dev/null
@@ -1,54 +0,0 @@
-# Copyright 2018 The TensorFlow Authors. All Rights Reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-# ==============================================================================
-"""Unit test for tf.scan under eager execution."""
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
-
-import time
-
-import numpy as np
-import tensorflow as tf
-
-
-class ScanBenchmark(tf.test.Benchmark):
-
-  def runScan(self, n):
-    elems = np.arange(n)
-    start_time = time.time()
-    _ = tf.scan(lambda a, x: a + x, elems, parallel_iterations=1)
-    wall_time = time.time() - start_time
-
-    self.report_benchmark(
-        name='scan',
-        iters=n,
-        wall_time=wall_time)
-
-  def benchmarkScan16000(self):
-    self.runScan(16000)
-
-  def benchmarkScan32000(self):
-    self.runScan(32000)
-
-  def benchmarkScan64000(self):
-    self.runScan(64000)
-
-  def benchmarkScan128000(self):
-    self.runScan(128000)
-
-
-if __name__ == '__main__':
-  tf.enable_eager_execution()
-  tf.test.main()