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Correcting the number of flop for MatMul #19792

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Aug 22, 2018
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Correcting the number of flop for MatMul #19792

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4 changes: 2 additions & 2 deletions tensorflow/python/kernel_tests/matmul_op_test.py
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Original file line number Diff line number Diff line change
Expand Up @@ -142,7 +142,7 @@ def testSimpleStatistics(self):
for op in g.get_operations():
flops = ops.get_stats_for_node_def(g, op.node_def, "flops").value
if op.name == "MatMul":
self.assertEqual(7200, flops)
self.assertEqual(6975, flops)

def testTransposedStatistics(self):
g = ops.Graph()
Expand All @@ -153,7 +153,7 @@ def testTransposedStatistics(self):
for op in g.get_operations():
flops = ops.get_stats_for_node_def(g, op.node_def, "flops").value
if op.name == "MatMul":
self.assertEqual(7200, flops)
self.assertEqual(6975, flops)


try:
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2 changes: 1 addition & 1 deletion tensorflow/python/ops/math_ops.py
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Expand Up @@ -2033,7 +2033,7 @@ def _calc_mat_mul_flops(graph, node):
output_shape = graph_util.tensor_shape_from_node_def_name(graph, node.name)
output_shape.assert_is_fully_defined()
output_count = np.prod(output_shape.as_list())
return ops.OpStats("flops", (k * output_count * 2))
return ops.OpStats("flops", ((2 * k - 1) * output_count))


def _as_indexed_slices(x, optimize=True):
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