Run tests on TPU

.github/workflows/actions.yml

@@ -148,4 +148,4 @@ jobs:
           pip uninstall -y keras keras-nightly
           pip install -e "." --progress-bar off --upgrade
       - name: Run pre-commit
-        run: pre-commit run --all-files --hook-stage manual
+        run: pre-commit run --all-files --hook-stage manual

.github/workflows/tpu-tests-jax.yml

@@ -0,0 +1,47 @@
+name: Keras Tests on TPU Runner
+
+on:
+  push:
+    branches: [ master ]
+  workflow_call:
+  pull_request:
+  release:
+    types: [created]
+
+permissions:
+  contents: read
+
+jobs:
+  test-in-container:
+    name: Run tests on TPU
+    runs-on: linux-x86-ct6e-44-1tpu
+
+    strategy:
+      fail-fast: false
+      matrix:
+        backend: [jax]
+
+    container:
+      image: python:3.10-slim
+      options: --privileged --network host
+
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+
+      - name: Install Dependencies
+        run: |
+          pip install --no-cache-dir -r requirements-${{ matrix.backend }}-tpu.txt \
+
+      - name: Set Keras Backend
+        run: echo "KERAS_BACKEND=jax" >> $GITHUB_ENV
+
+      - name: Run Verification and Tests
+        run: |
+          echo "Successfully running inside the public python container!"
+          echo "Verifying JAX installation..."
+          python3 -c "import jax; print(f'JAX backend: {jax.default_backend()}'); print(f'JAX device Type : {jax.devices()[0].device_kind}')"
+
+          pytest keras --ignore keras/src/applications \
+                      --cov=keras \
+                      --cov-config=pyproject.toml

conftest.py

@@ -31,6 +31,21 @@ def pytest_collection_modifyitems(config, items):
                 line.strip() for line in openvino_skipped_tests if line.strip()
             ]
 
+    tpu_skipped_tests = []
+    if backend() == "jax":
+        try:
+            with open(
+                "keras/src/backend/jax/excluded_tpu_tests.txt", "r"
+            ) as file:
+                tpu_skipped_tests = file.readlines()
+                # it is necessary to check if stripped line is not empty
+                # and exclude such lines
+                tpu_skipped_tests = [
+                    line.strip() for line in tpu_skipped_tests if line.strip()
+                ]
+        except FileNotFoundError:
+            pass  # File doesn't exist, no tests to skip
+
     requires_trainable_backend = pytest.mark.skipif(
         backend() in ["numpy", "openvino"],
         reason="Trainer not implemented for NumPy and OpenVINO backend.",
@@ -49,6 +64,14 @@ def pytest_collection_modifyitems(config, items):
                         "Not supported operation by openvino backend",
                     )
                 )
+        # also, skip concrete tests for TPU when using JAX backend
+        for skipped_test in tpu_skipped_tests:
+            if skipped_test in item.nodeid:
+                item.add_marker(
+                    pytest.mark.skip(
+                        reason="Known TPU test failure",
+                    )
+                )
 
 
 def skip_if_backend(given_backend, reason):

keras/src/backend/jax/excluded_tpu_tests.txt

@@ -0,0 +1,234 @@
+AdditiveAttentionTest::test_attention_correctness
+AttentionTest::test_attention_calculate_scores_with_scale
+AttentionTest::test_attention_correctness
+CircleTest::test_correctness
+CircleTest::test_correctness_weighted
+CircleTest::test_mean_with_sample_weight_reduction
+CircleTest::test_no_reduction
+CircleTest::test_sum_reduction
+ConvBasicTest::test_enable_lora_with_alpha
+ConvCorrectnessTest::test_conv1d0
+ConvCorrectnessTest::test_conv1d1
+ConvCorrectnessTest::test_conv1d2
+ConvCorrectnessTest::test_conv1d3
+ConvCorrectnessTest::test_conv1d4
+ConvCorrectnessTest::test_conv2d0
+ConvCorrectnessTest::test_conv2d1
+ConvCorrectnessTest::test_conv2d2
+ConvCorrectnessTest::test_conv2d3
+ConvCorrectnessTest::test_conv2d4
+ConvCorrectnessTest::test_conv2d5
+ConvCorrectnessTest::test_conv3d0
+ConvCorrectnessTest::test_conv3d1
+ConvCorrectnessTest::test_conv3d2
+ConvCorrectnessTest::test_conv3d3
+ConvCorrectnessTest::test_conv3d4
+ConvLSTM1DTest::test_correctness
+ConvLSTM1DTest::test_correctness
+ConvLSTM2DTest::test_correctness
+ConvLSTMCellTest::test_correctness
+ConvLSTMTest::test_correctness
+ConvTransposeCorrectnessTest::test_conv1d_transpose0
+ConvTransposeCorrectnessTest::test_conv1d_transpose1
+ConvTransposeCorrectnessTest::test_conv1d_transpose2
+ConvTransposeCorrectnessTest::test_conv2d_transpose0
+ConvTransposeCorrectnessTest::test_conv2d_transpose1
+ConvTransposeCorrectnessTest::test_conv2d_transpose2
+ConvTransposeCorrectnessTest::test_conv2d_transpose3
+ConvTransposeCorrectnessTest::test_conv3d_transpose0
+ConvTransposeCorrectnessTest::test_conv3d_transpose1
+ConvTransposeCorrectnessTest::test_conv3d_transpose2
+CTCTest::test_correctness
+DenseTest::test_dense_sparse
+DepthwiseConvCorrectnessTest::test_depthwise_conv1d0
+DepthwiseConvCorrectnessTest::test_depthwise_conv1d1
+DepthwiseConvCorrectnessTest::test_depthwise_conv1d2
+DepthwiseConvCorrectnessTest::test_depthwise_conv2d0
+DepthwiseConvCorrectnessTest::test_depthwise_conv2d1
+DepthwiseConvCorrectnessTest::test_depthwise_conv2d2
+EinsumDenseTest::test_enable_lora_with_alpha
+EmbeddingTest::test_enable_lora_with_alpha
+ExportArchiveTest::test_jax_endpoint_registration_tf_function
+ExportArchiveTest::test_jax_multi_unknown_endpoint_registration
+ExportArchiveTest::test_layer_export
+ExportArchiveTest::test_low_level_model_export_functional
+ExportArchiveTest::test_low_level_model_export_sequential
+ExportArchiveTest::test_low_level_model_export_subclass
+ExportArchiveTest::test_low_level_model_export_with_alias
+ExportArchiveTest::test_low_level_model_export_with_dynamic_dims_functional
+ExportArchiveTest::test_low_level_model_export_with_dynamic_dims_sequential
+ExportArchiveTest::test_low_level_model_export_with_dynamic_dims_subclass
+ExportArchiveTest::test_low_level_model_export_with_jax2tf_kwargs
+ExportArchiveTest::test_low_level_model_export_with_jax2tf_polymorphic_shapes
+ExportArchiveTest::test_model_combined_with_tf_preprocessing
+ExportArchiveTest::test_model_export_method_functional
+ExportArchiveTest::test_model_export_method_sequential
+ExportArchiveTest::test_model_export_method_subclass
+ExportArchiveTest::test_multi_input_output_functional_model
+ExportArchiveTest::test_non_standard_layer_signature
+ExportArchiveTest::test_non_standard_layer_signature_with_kwargs
+ExportArchiveTest::test_track_multiple_layers
+ExportONNXTest::test_export_with_input_names
+ExportONNXTest::test_export_with_opset_version_18
+ExportONNXTest::test_export_with_opset_version_none
+ExportONNXTest::test_standard_model_export_functional
+ExportONNXTest::test_standard_model_export_lstm
+ExportONNXTest::test_standard_model_export_sequential
+ExportONNXTest::test_standard_model_export_subclass
+ExportOpenVINOTest::test_standard_model_export_functional
+ExportOpenVINOTest::test_standard_model_export_sequential
+ExportOpenVINOTest::test_standard_model_export_subclass
+ExportSavedModelTest::test_input_signature_functional_<kerastensor shape=(none, 10), dtype=float32, sparse=false, ragged=false, name=inputs>
+ExportSavedModelTest::test_input_signature_functional_backend_tensor
+ExportSavedModelTest::test_input_signature_functional_inputspec(dtype=float32, shape=(none, 10), ndim=2)
+ExportSavedModelTest::test_input_signature_functional_tensorspec(shape=(none, 10), dtype=tf.float32, name='inputs')
+ExportSavedModelTest::test_input_signature_sequential_<kerastensor shape=(none, 10), dtype=float32, sparse=false, ragged=false, name=inputs>
+ExportSavedModelTest::test_input_signature_sequential_backend_tensor
+ExportSavedModelTest::test_input_signature_sequential_inputspec(dtype=float32, shape=(none, 10), ndim=2)
+ExportSavedModelTest::test_input_signature_sequential_tensorspec(shape=(none, 10), dtype=tf.float32, name='inputs')
+ExportSavedModelTest::test_input_signature_subclass_<kerastensor shape=(none, 10), dtype=float32, sparse=false, ragged=false, name=inputs>
+ExportSavedModelTest::test_input_signature_subclass_backend_tensor
+ExportSavedModelTest::test_input_signature_subclass_inputspec(dtype=float32, shape=(none, 10), ndim=2)
+ExportSavedModelTest::test_input_signature_subclass_tensorspec(shape=(none, 10), dtype=tf.float32, name='inputs')
+ExportSavedModelTest::test_jax_specific_kwargs_functional_false_{'enable_xla': true, 'native_serialization': true}
+ExportSavedModelTest::test_jax_specific_kwargs_functional_false_none
+ExportSavedModelTest::test_jax_specific_kwargs_functional_true_{'enable_xla': true, 'native_serialization': true}
+ExportSavedModelTest::test_jax_specific_kwargs_functional_true_none
+ExportSavedModelTest::test_jax_specific_kwargs_sequential_false_{'enable_xla': true, 'native_serialization': true}
+ExportSavedModelTest::test_jax_specific_kwargs_sequential_false_none
+ExportSavedModelTest::test_jax_specific_kwargs_sequential_true_{'enable_xla': true, 'native_serialization': true}
+ExportSavedModelTest::test_jax_specific_kwargs_sequential_true_none
+ExportSavedModelTest::test_jax_specific_kwargs_subclass_false_{'enable_xla': true, 'native_serialization': true}
+ExportSavedModelTest::test_jax_specific_kwargs_subclass_false_none
+ExportSavedModelTest::test_jax_specific_kwargs_subclass_true_{'enable_xla': true, 'native_serialization': true}
+ExportSavedModelTest::test_jax_specific_kwargs_subclass_true_none
+ExportSavedModelTest::test_model_with_input_structure_array
+ExportSavedModelTest::test_model_with_input_structure_dict
+ExportSavedModelTest::test_model_with_input_structure_tuple
+ExportSavedModelTest::test_model_with_multiple_inputs
+ExportSavedModelTest::test_model_with_non_trainable_state_export_functional
+ExportSavedModelTest::test_model_with_non_trainable_state_export_sequential
+ExportSavedModelTest::test_model_with_non_trainable_state_export_subclass
+ExportSavedModelTest::test_model_with_rng_export_functional
+ExportSavedModelTest::test_model_with_rng_export_sequential
+ExportSavedModelTest::test_model_with_rng_export_subclass
+ExportSavedModelTest::test_model_with_tf_data_layer_functional
+ExportSavedModelTest::test_model_with_tf_data_layer_sequential
+ExportSavedModelTest::test_model_with_tf_data_layer_subclass
+ExportSavedModelTest::test_standard_model_export_functional
+ExportSavedModelTest::test_standard_model_export_sequential
+ExportSavedModelTest::test_standard_model_export_subclass
+GRUTest::test_correctness0
+GRUTest::test_correctness1
+GRUTest::test_legacy_implementation_argument
+GRUTest::test_masking
+GRUTest::test_pass_initial_state
+GRUTest::test_pass_return_state
+GRUTest::test_statefulness
+ImageOpsCorrectnessTest::test_affine_transform_bilinear_constant
+ImageOpsCorrectnessTest::test_affine_transform_bilinear_mirror
+ImageOpsCorrectnessTest::test_affine_transform_bilinear_nearest
+ImageOpsCorrectnessTest::test_affine_transform_bilinear_reflect
+ImageOpsCorrectnessTest::test_affine_transform_bilinear_wrap
+LinalgOpsCorrectnessTest::test_cholesky_inverse_lower
+LinalgOpsCorrectnessTest::test_cholesky_inverse_upper
+LinalgOpsCorrectnessTest::test_eig
+LinalgOpsCorrectnessTest::test_svd
+LSTMTest::test_correctness0
+LSTMTest::test_correctness1
+LSTMTest::test_masking
+LSTMTest::test_pass_initial_state
+LSTMTest::test_statefulness
+MathOpsCorrectnessTest::test_extract_sequences
+MergingLayersTest::test_correctness_dynamic_dot_3d
+MergingLayersTest::test_correctness_static_dot_3d
+MuonTest::test_Newton_Schulz
+NNOpsCorrectnessTest::test_conv_2d0
+NNOpsCorrectnessTest::test_conv_2d1
+NNOpsCorrectnessTest::test_conv_2d2
+NNOpsCorrectnessTest::test_conv_2d3
+NNOpsCorrectnessTest::test_conv_2d4
+NNOpsCorrectnessTest::test_conv_2d5
+NNOpsCorrectnessTest::test_conv_3d0
+NNOpsCorrectnessTest::test_conv_3d1
+NNOpsCorrectnessTest::test_conv_3d10
+NNOpsCorrectnessTest::test_conv_3d11
+NNOpsCorrectnessTest::test_conv_3d2
+NNOpsCorrectnessTest::test_conv_3d3
+NNOpsCorrectnessTest::test_conv_3d4
+NNOpsCorrectnessTest::test_conv_3d5
+NNOpsCorrectnessTest::test_conv_3d6
+NNOpsCorrectnessTest::test_conv_3d7
+NNOpsCorrectnessTest::test_conv_3d8
+NNOpsCorrectnessTest::test_conv_3d9
+NNOpsCorrectnessTest::test_ctc_loss
+NNOpsCorrectnessTest::test_depthwise_conv_2d0
+NNOpsCorrectnessTest::test_depthwise_conv_2d1
+NNOpsCorrectnessTest::test_depthwise_conv_2d10
+NNOpsCorrectnessTest::test_depthwise_conv_2d11
+NNOpsCorrectnessTest::test_depthwise_conv_2d2
+NNOpsCorrectnessTest::test_depthwise_conv_2d3
+NNOpsCorrectnessTest::test_depthwise_conv_2d4
+NNOpsCorrectnessTest::test_depthwise_conv_2d5
+NNOpsCorrectnessTest::test_depthwise_conv_2d6
+NNOpsCorrectnessTest::test_depthwise_conv_2d7
+NNOpsCorrectnessTest::test_depthwise_conv_2d8
+NNOpsCorrectnessTest::test_depthwise_conv_2d9
+NNOpsCorrectnessTest::test_separable_conv_2d0
+NNOpsCorrectnessTest::test_separable_conv_2d1
+NNOpsCorrectnessTest::test_separable_conv_2d2
+NNOpsCorrectnessTest::test_separable_conv_2d3
+NNOpsCorrectnessTest::test_separable_conv_2d4
+NNOpsCorrectnessTest::test_separable_conv_2d5
+NNOpsCorrectnessTest::test_separable_conv_2d6
+NNOpsCorrectnessTest::test_separable_conv_2d7
+NumpyOneInputOpsDynamicShapeTest::test_argmax_negative_zero
+NumpyOneInputOpsDynamicShapeTest::test_argmin_negative_zero
+NumpyTwoInputOpsCorrectnessTest::test_logspace
+NumpyTwoInputOpsCorrectnessTest::test_matmul_sparse_rank2_float32_false_false
+NumpyTwoInputOpsCorrectnessTest::test_matmul_sparse_rank2_float64_false_false
+NumpyTwoInputOpsCorrectnessTest::test_matmul_sparse_rank3_float16_false_false
+NumpyTwoInputOpsCorrectnessTest::test_matmul_sparse_rank3_float32_false_false
+NumpyTwoInputOpsCorrectnessTest::test_matmul_sparse_rank3_float64_false_false
+NumpyTwoInputOpsCorrectnessTest::test_matmul_sparse_rank4_float16_false_false
+NumpyTwoInputOpsCorrectnessTest::test_matmul_sparse_rank4_float32_false_false
+NumpyTwoInputOpsCorrectnessTest::test_matmul_sparse_rank4_float64_false_false
+RandomGaussianBlurTest::test_random_erasing_basic
+RandomPerspectiveTest::test_random_perspective_bounding_boxes_with_large_scale
+RandomPerspectiveTest::test_random_perspective_bounding_boxes_with_small_scale
+RandomZoomTest::test_random_zoom_out_correctness
+RegularizersTest::test_orthogonal_regularizer
+RNNTest::test_go_backwards
+SeparableConvCorrectnessTest::test_separable_conv1d0
+SeparableConvCorrectnessTest::test_separable_conv1d1
+SeparableConvCorrectnessTest::test_separable_conv1d2
+SeparableConvCorrectnessTest::test_separable_conv2d0
+SeparableConvCorrectnessTest::test_separable_conv2d1
+SeparableConvCorrectnessTest::test_separable_conv2d2
+SimpleRNNTest::test_correctness
+SimpleRNNTest::test_correctness
+SimpleRNNTest::test_masking
+SimpleRNNTest::test_masking
+SimpleRNNTest::test_pass_initial_state
+SimpleRNNTest::test_pass_initial_state
+SimpleRNNTest::test_return_state
+SimpleRNNTest::test_statefulness
+SimpleRNNTest::test_statefulness
+StackedRNNTest::test_correctness_single_state_stack
+StackedRNNTest::test_correctness_two_states_stack
+StackedRNNTest::test_statefullness_single_state_stack
+StackedRNNTest::test_statefullness_two_states_stack
+TestFitLRSchedulesFlow::test_fit_lr_correctness
+TestJaxLayer::test_flax_layer_training_independent_bound_method
+TestJaxLayer::test_flax_layer_training_rng_state_no_method
+TestJaxLayer::test_flax_layer_training_rng_unbound_method
+TestJaxLayer::test_flax_layer_training_rng_unbound_method_dtype_policy
+TestJaxLayer::test_jax_layer_training_independent
+TestJaxLayer::test_jax_layer_training_state
+TestJaxLayer::test_jax_layer_training_state_dtype_policy
+TestSpectrogram::test_spectrogram_error
+TestTrainer::test_loss_weights
+TestTrainer::test_nested_inputs
+TestTrainer::test_on_batch_methods_eager
+TestTrainer::test_on_batch_methods_graph_fn
+TestTrainer::test_on_batch_methods_jit

requirements-common.txt

@@ -27,5 +27,4 @@ onnxruntime
 # onnxscript==0.3.2 breaks LSTM model export.
 onnxscript!=0.3.2
 openvino
-# for grain_dataset_adapter_test.py
 grain

requirements-jax-tpu.txt

@@ -0,0 +1,14 @@
+# Tensorflow cpu-only version (needed for testing).
+tensorflow-cpu~=2.18.1
+tf2onnx
+
+# Torch cpu-only version (needed for testing).
+--extra-index-url https://download.pytorch.org/whl/cpu
+torch==2.6.0
+
+# Jax with cuda support.
+--find-links https://storage.googleapis.com/jax-releases/libtpu_releases.html
+jax[tpu]
+flax
+
+-r requirements-common.txt

requirements-tensorflow-tpu.txt

@@ -0,0 +1,13 @@
+--find-links https://storage.googleapis.com/libtpu-tf-releases/index.html
+tensorflow-tpu==2.19.0
+
+#tf2onnx
+
+# Torch cpu-only version (needed for testing).
+--extra-index-url https://download.pytorch.org/whl/cpu
+torch==2.6.0
+
+# Jax cpu-only version (needed for testing).
+jax
+
+-r requirements-common.txt