[GitHub] [incubator-mxnet] anirudh2290 commented on a change in pull request #16409: added support for large tensors for Dropout operator and tests to verify support for more operators

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anirudh2290 commented on a change in pull request #16409: added support for large tensors for Dropout operator and tests to verify support for more operators
URL: https://github.com/apache/incubator-mxnet/pull/16409#discussion_r336234831
 
 

 ##########
 File path: tests/nightly/test_large_array.py
 ##########
 @@ -1199,6 +1199,243 @@ def test_full():
     assert a[-1][-1] == 3
 
 
+def test_astype():
+    x = create_2d_tensor(rows=SMALL_Y, columns=LARGE_X)
+    y = x.astype('int32')
+    assert y.dtype == np.int32
+    assert y[-1][-1] == SMALL_Y-1
+
+
+def test_cast():
+    x = create_2d_tensor(rows=SMALL_Y, columns=LARGE_X)
+    y = nd.cast(x, np.int32)
+    assert y.dtype == np.int32
+    assert y[-1][-1] == SMALL_Y-1
+
+
+def test_repeat():
+    x = create_2d_tensor(rows=SMALL_Y, columns=LARGE_X//2)
+    y = nd.repeat(x, repeats=2, axis = 1)
+    assert y.shape == (SMALL_Y, LARGE_X)
+    assert y[0][1] == 0
+    assert y[-1][-1] == SMALL_Y-1
+    x = create_2d_tensor(rows=SMALL_Y//2, columns=LARGE_X)
+    y = nd.repeat(x, repeats=2, axis = 0)
+    assert y.shape == (SMALL_Y, LARGE_X)
+    assert y[0][1] == 0
+    assert y[-1][0] == SMALL_Y//2-1
+
+
+def create_input_for_rounding_ops():
+    # Creates an vector with values (-LARGE_X/2 .... -2, -1, 0, 1, 2, .... , LARGE_X/2-1)
+    # then divides each element by 2 i.e (-LARGE_X/4 .... -1, -0.5, 0, 0.5, 1, .... , LARGE_X/4-1)
+    # and finally broadcasts to 
+    inp = nd.arange(-LARGE_X//2, LARGE_X//2, dtype=np.float64).reshape(1, LARGE_X)
+    inp = inp/2
+    inp = nd.broadcast_to(inp, (SMALL_Y, LARGE_X))
+    return inp
+
+
+def assert_correctness_of_rounding_ops(output, mid, expected_vals):
+    # checks verifies 5 values at the middle positions of the input vector
+    # i.e mid-2, mid-1, mid, mid+1, mid+2
+    output_idx_to_inspect = [mid-2, mid-1, mid, mid+1, mid+2]
+    for i in range(len(output_idx_to_inspect)):
+        assert output[1][output_idx_to_inspect[i]] == expected_vals[i]
+
+
+def test_rounding_ops():
 
 Review comment:
   diff files for just a size change ? add a TODO to merge these tests into one.

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