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-rw-r--r--unsupported/test/cxx11_tensor_chipping.cpp425
1 files changed, 425 insertions, 0 deletions
diff --git a/unsupported/test/cxx11_tensor_chipping.cpp b/unsupported/test/cxx11_tensor_chipping.cpp
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index 000000000..1832dec8b
--- /dev/null
+++ b/unsupported/test/cxx11_tensor_chipping.cpp
@@ -0,0 +1,425 @@
+// This file is part of Eigen, a lightweight C++ template library
+// for linear algebra.
+//
+// Copyright (C) 2014 Benoit Steiner <benoit.steiner.goog@gmail.com>
+//
+// This Source Code Form is subject to the terms of the Mozilla
+// Public License v. 2.0. If a copy of the MPL was not distributed
+// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#include "main.h"
+
+#include <Eigen/CXX11/Tensor>
+
+using Eigen::Tensor;
+
+template<int DataLayout>
+static void test_simple_chip()
+{
+ Tensor<float, 5, DataLayout> tensor(2,3,5,7,11);
+ tensor.setRandom();
+
+ Tensor<float, 4, DataLayout> chip1;
+ chip1 = tensor.template chip<0>(1);
+
+ VERIFY_IS_EQUAL(chip1.dimension(0), 3);
+ VERIFY_IS_EQUAL(chip1.dimension(1), 5);
+ VERIFY_IS_EQUAL(chip1.dimension(2), 7);
+ VERIFY_IS_EQUAL(chip1.dimension(3), 11);
+
+ for (int i = 0; i < 3; ++i) {
+ for (int j = 0; j < 5; ++j) {
+ for (int k = 0; k < 7; ++k) {
+ for (int l = 0; l < 11; ++l) {
+ VERIFY_IS_EQUAL(chip1(i,j,k,l), tensor(1,i,j,k,l));
+ }
+ }
+ }
+ }
+
+ Tensor<float, 4, DataLayout> chip2 = tensor.template chip<1>(1);
+ VERIFY_IS_EQUAL(chip2.dimension(0), 2);
+ VERIFY_IS_EQUAL(chip2.dimension(1), 5);
+ VERIFY_IS_EQUAL(chip2.dimension(2), 7);
+ VERIFY_IS_EQUAL(chip2.dimension(3), 11);
+ for (int i = 0; i < 2; ++i) {
+ for (int j = 0; j < 3; ++j) {
+ for (int k = 0; k < 7; ++k) {
+ for (int l = 0; l < 11; ++l) {
+ VERIFY_IS_EQUAL(chip2(i,j,k,l), tensor(i,1,j,k,l));
+ }
+ }
+ }
+ }
+
+ Tensor<float, 4, DataLayout> chip3 = tensor.template chip<2>(2);
+ VERIFY_IS_EQUAL(chip3.dimension(0), 2);
+ VERIFY_IS_EQUAL(chip3.dimension(1), 3);
+ VERIFY_IS_EQUAL(chip3.dimension(2), 7);
+ VERIFY_IS_EQUAL(chip3.dimension(3), 11);
+ for (int i = 0; i < 2; ++i) {
+ for (int j = 0; j < 3; ++j) {
+ for (int k = 0; k < 7; ++k) {
+ for (int l = 0; l < 11; ++l) {
+ VERIFY_IS_EQUAL(chip3(i,j,k,l), tensor(i,j,2,k,l));
+ }
+ }
+ }
+ }
+
+ Tensor<float, 4, DataLayout> chip4(tensor.template chip<3>(5));
+ VERIFY_IS_EQUAL(chip4.dimension(0), 2);
+ VERIFY_IS_EQUAL(chip4.dimension(1), 3);
+ VERIFY_IS_EQUAL(chip4.dimension(2), 5);
+ VERIFY_IS_EQUAL(chip4.dimension(3), 11);
+ for (int i = 0; i < 2; ++i) {
+ for (int j = 0; j < 3; ++j) {
+ for (int k = 0; k < 5; ++k) {
+ for (int l = 0; l < 7; ++l) {
+ VERIFY_IS_EQUAL(chip4(i,j,k,l), tensor(i,j,k,5,l));
+ }
+ }
+ }
+ }
+
+ Tensor<float, 4, DataLayout> chip5(tensor.template chip<4>(7));
+ VERIFY_IS_EQUAL(chip5.dimension(0), 2);
+ VERIFY_IS_EQUAL(chip5.dimension(1), 3);
+ VERIFY_IS_EQUAL(chip5.dimension(2), 5);
+ VERIFY_IS_EQUAL(chip5.dimension(3), 7);
+ for (int i = 0; i < 2; ++i) {
+ for (int j = 0; j < 3; ++j) {
+ for (int k = 0; k < 5; ++k) {
+ for (int l = 0; l < 7; ++l) {
+ VERIFY_IS_EQUAL(chip5(i,j,k,l), tensor(i,j,k,l,7));
+ }
+ }
+ }
+ }
+}
+
+template<int DataLayout>
+static void test_dynamic_chip()
+{
+ Tensor<float, 5, DataLayout> tensor(2,3,5,7,11);
+ tensor.setRandom();
+
+ Tensor<float, 4, DataLayout> chip1;
+ chip1 = tensor.chip(1, 0);
+ VERIFY_IS_EQUAL(chip1.dimension(0), 3);
+ VERIFY_IS_EQUAL(chip1.dimension(1), 5);
+ VERIFY_IS_EQUAL(chip1.dimension(2), 7);
+ VERIFY_IS_EQUAL(chip1.dimension(3), 11);
+ for (int i = 0; i < 3; ++i) {
+ for (int j = 0; j < 5; ++j) {
+ for (int k = 0; k < 7; ++k) {
+ for (int l = 0; l < 11; ++l) {
+ VERIFY_IS_EQUAL(chip1(i,j,k,l), tensor(1,i,j,k,l));
+ }
+ }
+ }
+ }
+
+ Tensor<float, 4, DataLayout> chip2 = tensor.chip(1, 1);
+ VERIFY_IS_EQUAL(chip2.dimension(0), 2);
+ VERIFY_IS_EQUAL(chip2.dimension(1), 5);
+ VERIFY_IS_EQUAL(chip2.dimension(2), 7);
+ VERIFY_IS_EQUAL(chip2.dimension(3), 11);
+ for (int i = 0; i < 2; ++i) {
+ for (int j = 0; j < 3; ++j) {
+ for (int k = 0; k < 7; ++k) {
+ for (int l = 0; l < 11; ++l) {
+ VERIFY_IS_EQUAL(chip2(i,j,k,l), tensor(i,1,j,k,l));
+ }
+ }
+ }
+ }
+
+ Tensor<float, 4, DataLayout> chip3 = tensor.chip(2, 2);
+ VERIFY_IS_EQUAL(chip3.dimension(0), 2);
+ VERIFY_IS_EQUAL(chip3.dimension(1), 3);
+ VERIFY_IS_EQUAL(chip3.dimension(2), 7);
+ VERIFY_IS_EQUAL(chip3.dimension(3), 11);
+ for (int i = 0; i < 2; ++i) {
+ for (int j = 0; j < 3; ++j) {
+ for (int k = 0; k < 7; ++k) {
+ for (int l = 0; l < 11; ++l) {
+ VERIFY_IS_EQUAL(chip3(i,j,k,l), tensor(i,j,2,k,l));
+ }
+ }
+ }
+ }
+
+ Tensor<float, 4, DataLayout> chip4(tensor.chip(5, 3));
+ VERIFY_IS_EQUAL(chip4.dimension(0), 2);
+ VERIFY_IS_EQUAL(chip4.dimension(1), 3);
+ VERIFY_IS_EQUAL(chip4.dimension(2), 5);
+ VERIFY_IS_EQUAL(chip4.dimension(3), 11);
+ for (int i = 0; i < 2; ++i) {
+ for (int j = 0; j < 3; ++j) {
+ for (int k = 0; k < 5; ++k) {
+ for (int l = 0; l < 7; ++l) {
+ VERIFY_IS_EQUAL(chip4(i,j,k,l), tensor(i,j,k,5,l));
+ }
+ }
+ }
+ }
+
+ Tensor<float, 4, DataLayout> chip5(tensor.chip(7, 4));
+ VERIFY_IS_EQUAL(chip5.dimension(0), 2);
+ VERIFY_IS_EQUAL(chip5.dimension(1), 3);
+ VERIFY_IS_EQUAL(chip5.dimension(2), 5);
+ VERIFY_IS_EQUAL(chip5.dimension(3), 7);
+ for (int i = 0; i < 2; ++i) {
+ for (int j = 0; j < 3; ++j) {
+ for (int k = 0; k < 5; ++k) {
+ for (int l = 0; l < 7; ++l) {
+ VERIFY_IS_EQUAL(chip5(i,j,k,l), tensor(i,j,k,l,7));
+ }
+ }
+ }
+ }
+}
+
+template<int DataLayout>
+static void test_chip_in_expr() {
+ Tensor<float, 5, DataLayout> input1(2,3,5,7,11);
+ input1.setRandom();
+ Tensor<float, 4, DataLayout> input2(3,5,7,11);
+ input2.setRandom();
+
+ Tensor<float, 4, DataLayout> result = input1.template chip<0>(0) + input2;
+ for (int i = 0; i < 3; ++i) {
+ for (int j = 0; j < 5; ++j) {
+ for (int k = 0; k < 7; ++k) {
+ for (int l = 0; l < 11; ++l) {
+ float expected = input1(0,i,j,k,l) + input2(i,j,k,l);
+ VERIFY_IS_EQUAL(result(i,j,k,l), expected);
+ }
+ }
+ }
+ }
+
+ Tensor<float, 3, DataLayout> input3(3,7,11);
+ input3.setRandom();
+ Tensor<float, 3, DataLayout> result2 = input1.template chip<0>(0).template chip<1>(2) + input3;
+ for (int i = 0; i < 3; ++i) {
+ for (int j = 0; j < 7; ++j) {
+ for (int k = 0; k < 11; ++k) {
+ float expected = input1(0,i,2,j,k) + input3(i,j,k);
+ VERIFY_IS_EQUAL(result2(i,j,k), expected);
+ }
+ }
+ }
+}
+
+template<int DataLayout>
+static void test_chip_as_lvalue()
+{
+ Tensor<float, 5, DataLayout> input1(2,3,5,7,11);
+ input1.setRandom();
+
+ Tensor<float, 4, DataLayout> input2(3,5,7,11);
+ input2.setRandom();
+ Tensor<float, 5, DataLayout> tensor = input1;
+ tensor.template chip<0>(1) = input2;
+ for (int i = 0; i < 2; ++i) {
+ for (int j = 0; j < 3; ++j) {
+ for (int k = 0; k < 5; ++k) {
+ for (int l = 0; l < 7; ++l) {
+ for (int m = 0; m < 11; ++m) {
+ if (i != 1) {
+ VERIFY_IS_EQUAL(tensor(i,j,k,l,m), input1(i,j,k,l,m));
+ } else {
+ VERIFY_IS_EQUAL(tensor(i,j,k,l,m), input2(j,k,l,m));
+ }
+ }
+ }
+ }
+ }
+ }
+
+ Tensor<float, 4, DataLayout> input3(2,5,7,11);
+ input3.setRandom();
+ tensor = input1;
+ tensor.template chip<1>(1) = input3;
+ for (int i = 0; i < 2; ++i) {
+ for (int j = 0; j < 3; ++j) {
+ for (int k = 0; k < 5; ++k) {
+ for (int l = 0; l < 7; ++l) {
+ for (int m = 0; m < 11; ++m) {
+ if (j != 1) {
+ VERIFY_IS_EQUAL(tensor(i,j,k,l,m), input1(i,j,k,l,m));
+ } else {
+ VERIFY_IS_EQUAL(tensor(i,j,k,l,m), input3(i,k,l,m));
+ }
+ }
+ }
+ }
+ }
+ }
+
+ Tensor<float, 4, DataLayout> input4(2,3,7,11);
+ input4.setRandom();
+ tensor = input1;
+ tensor.template chip<2>(3) = input4;
+ for (int i = 0; i < 2; ++i) {
+ for (int j = 0; j < 3; ++j) {
+ for (int k = 0; k < 5; ++k) {
+ for (int l = 0; l < 7; ++l) {
+ for (int m = 0; m < 11; ++m) {
+ if (k != 3) {
+ VERIFY_IS_EQUAL(tensor(i,j,k,l,m), input1(i,j,k,l,m));
+ } else {
+ VERIFY_IS_EQUAL(tensor(i,j,k,l,m), input4(i,j,l,m));
+ }
+ }
+ }
+ }
+ }
+ }
+
+ Tensor<float, 4, DataLayout> input5(2,3,5,11);
+ input5.setRandom();
+ tensor = input1;
+ tensor.template chip<3>(4) = input5;
+ for (int i = 0; i < 2; ++i) {
+ for (int j = 0; j < 3; ++j) {
+ for (int k = 0; k < 5; ++k) {
+ for (int l = 0; l < 7; ++l) {
+ for (int m = 0; m < 11; ++m) {
+ if (l != 4) {
+ VERIFY_IS_EQUAL(tensor(i,j,k,l,m), input1(i,j,k,l,m));
+ } else {
+ VERIFY_IS_EQUAL(tensor(i,j,k,l,m), input5(i,j,k,m));
+ }
+ }
+ }
+ }
+ }
+ }
+
+ Tensor<float, 4, DataLayout> input6(2,3,5,7);
+ input6.setRandom();
+ tensor = input1;
+ tensor.template chip<4>(5) = input6;
+ for (int i = 0; i < 2; ++i) {
+ for (int j = 0; j < 3; ++j) {
+ for (int k = 0; k < 5; ++k) {
+ for (int l = 0; l < 7; ++l) {
+ for (int m = 0; m < 11; ++m) {
+ if (m != 5) {
+ VERIFY_IS_EQUAL(tensor(i,j,k,l,m), input1(i,j,k,l,m));
+ } else {
+ VERIFY_IS_EQUAL(tensor(i,j,k,l,m), input6(i,j,k,l));
+ }
+ }
+ }
+ }
+ }
+ }
+
+ Tensor<float, 5, DataLayout> input7(2,3,5,7,11);
+ input7.setRandom();
+ tensor = input1;
+ tensor.chip(0, 0) = input7.chip(0, 0);
+ for (int i = 0; i < 2; ++i) {
+ for (int j = 0; j < 3; ++j) {
+ for (int k = 0; k < 5; ++k) {
+ for (int l = 0; l < 7; ++l) {
+ for (int m = 0; m < 11; ++m) {
+ if (i != 0) {
+ VERIFY_IS_EQUAL(tensor(i,j,k,l,m), input1(i,j,k,l,m));
+ } else {
+ VERIFY_IS_EQUAL(tensor(i,j,k,l,m), input7(i,j,k,l,m));
+ }
+ }
+ }
+ }
+ }
+ }
+}
+
+static void test_chip_raw_data_col_major()
+{
+ Tensor<float, 5, ColMajor> tensor(2,3,5,7,11);
+ tensor.setRandom();
+
+ typedef TensorEvaluator<decltype(tensor.chip<4>(3)), DefaultDevice> Evaluator4;
+ auto chip = Evaluator4(tensor.chip<4>(3), DefaultDevice());
+ for (int i = 0; i < 2; ++i) {
+ for (int j = 0; j < 3; ++j) {
+ for (int k = 0; k < 5; ++k) {
+ for (int l = 0; l < 7; ++l) {
+ int chip_index = i + 2 * (j + 3 * (k + 5 * l));
+ VERIFY_IS_EQUAL(chip.data()[chip_index], tensor(i,j,k,l,3));
+ }
+ }
+ }
+ }
+
+ typedef TensorEvaluator<decltype(tensor.chip<0>(0)), DefaultDevice> Evaluator0;
+ auto chip0 = Evaluator0(tensor.chip<0>(0), DefaultDevice());
+ VERIFY_IS_EQUAL(chip0.data(), static_cast<float*>(0));
+
+ typedef TensorEvaluator<decltype(tensor.chip<1>(0)), DefaultDevice> Evaluator1;
+ auto chip1 = Evaluator1(tensor.chip<1>(0), DefaultDevice());
+ VERIFY_IS_EQUAL(chip1.data(), static_cast<float*>(0));
+
+ typedef TensorEvaluator<decltype(tensor.chip<2>(0)), DefaultDevice> Evaluator2;
+ auto chip2 = Evaluator2(tensor.chip<2>(0), DefaultDevice());
+ VERIFY_IS_EQUAL(chip2.data(), static_cast<float*>(0));
+
+ typedef TensorEvaluator<decltype(tensor.chip<3>(0)), DefaultDevice> Evaluator3;
+ auto chip3 = Evaluator3(tensor.chip<3>(0), DefaultDevice());
+ VERIFY_IS_EQUAL(chip3.data(), static_cast<float*>(0));
+}
+
+static void test_chip_raw_data_row_major()
+{
+ Tensor<float, 5, RowMajor> tensor(11,7,5,3,2);
+ tensor.setRandom();
+
+ typedef TensorEvaluator<decltype(tensor.chip<0>(3)), DefaultDevice> Evaluator0;
+ auto chip = Evaluator0(tensor.chip<0>(3), DefaultDevice());
+ for (int i = 0; i < 7; ++i) {
+ for (int j = 0; j < 5; ++j) {
+ for (int k = 0; k < 3; ++k) {
+ for (int l = 0; l < 2; ++l) {
+ int chip_index = l + 2 * (k + 3 * (j + 5 * i));
+ VERIFY_IS_EQUAL(chip.data()[chip_index], tensor(3,i,j,k,l));
+ }
+ }
+ }
+ }
+
+ typedef TensorEvaluator<decltype(tensor.chip<1>(0)), DefaultDevice> Evaluator1;
+ auto chip1 = Evaluator1(tensor.chip<1>(0), DefaultDevice());
+ VERIFY_IS_EQUAL(chip1.data(), static_cast<float*>(0));
+
+ typedef TensorEvaluator<decltype(tensor.chip<2>(0)), DefaultDevice> Evaluator2;
+ auto chip2 = Evaluator2(tensor.chip<2>(0), DefaultDevice());
+ VERIFY_IS_EQUAL(chip2.data(), static_cast<float*>(0));
+
+ typedef TensorEvaluator<decltype(tensor.chip<3>(0)), DefaultDevice> Evaluator3;
+ auto chip3 = Evaluator3(tensor.chip<3>(0), DefaultDevice());
+ VERIFY_IS_EQUAL(chip3.data(), static_cast<float*>(0));
+
+ typedef TensorEvaluator<decltype(tensor.chip<4>(0)), DefaultDevice> Evaluator4;
+ auto chip4 = Evaluator4(tensor.chip<4>(0), DefaultDevice());
+ VERIFY_IS_EQUAL(chip4.data(), static_cast<float*>(0));
+}
+
+void test_cxx11_tensor_chipping()
+{
+ CALL_SUBTEST(test_simple_chip<ColMajor>());
+ CALL_SUBTEST(test_simple_chip<RowMajor>());
+ CALL_SUBTEST(test_dynamic_chip<ColMajor>());
+ CALL_SUBTEST(test_dynamic_chip<RowMajor>());
+ CALL_SUBTEST(test_chip_in_expr<ColMajor>());
+ CALL_SUBTEST(test_chip_in_expr<RowMajor>());
+ CALL_SUBTEST(test_chip_as_lvalue<ColMajor>());
+ CALL_SUBTEST(test_chip_as_lvalue<RowMajor>());
+ CALL_SUBTEST(test_chip_raw_data_col_major());
+ CALL_SUBTEST(test_chip_raw_data_row_major());
+}
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