Add CLAMP operator to Dynamic Fusion interface

Add the CLAMP activation function for GPU backend with generic activation Component and TemplateWriter modules.

CLAMP is internally implemented as LU_BOUNDED_RELU activation function with the alpha and beta variables swapped.

We do NOT consider in-place computation cases in this patch.

* CLAMP operator for GPU backend.
* Activation Component and TemplateWriter for CL backend.
* TemplateWriter generates tiled kernel code.
* Supported data types: F16, F32.
* Validation tests for CLAMP operation.

Resolves: COMPMID-5519

Change-Id: Ieb097d6b1e6a7ed2b882518e88314454efb402f6
Signed-off-by: Jakub Sujak <jakub.sujak@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/8762
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Gunes Bayir <gunes.bayir@arm.com>
Reviewed-by: SiCong Li <sicong.li@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Benchmark: Arm Jenkins <bsgcomp@arm.com>

1 files changed, 118 insertions, 0 deletions

diff --git a/src/dynamic_fusion/sketch/gpu/template_writer/cl/ClTemplateActivation.h b/src/dynamic_fusion/sketch/gpu/template_writer/cl/ClTemplateActivation.h
new file mode 100644
index 0000000000..22f8d428ab
--- /dev/null
+++ b/src/dynamic_fusion/sketch/gpu/template_writer/cl/ClTemplateActivation.h
@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 2022 Arm Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef SRC_DYNAMIC_FUSION_SKETCH_GPU_TEMPLATE_WRITER_CL_CLTEMPLATEACTIVATION
+#define SRC_DYNAMIC_FUSION_SKETCH_GPU_TEMPLATE_WRITER_CL_CLTEMPLATEACTIVATION
+
+#include "arm_compute/core/experimental/Types.h"
+#include "src/dynamic_fusion/sketch/gpu/components/cl/ClComponentActivation.h"
+#include "src/dynamic_fusion/sketch/gpu/template_writer/GpuKernelVariableTable.h"
+#include "src/dynamic_fusion/sketch/gpu/template_writer/IGpuTemplateComponentWriter.h"
+
+namespace arm_compute
+{
+namespace experimental
+{
+namespace dynamic_fusion
+{
+class ClTemplateActivation final : public IGpuTemplateComponentWriter
+{
+public:
+    using Attributes = ClComponentActivation::Attributes;
+
+    /** Constructor
+     *
+     * @param[in] id         Component id
+     * @param[in] tensors    Tensor arguments to the components
+     * @param[in] attributes Component attributes
+     */
+    ClTemplateActivation(ComponentId id, const ArgumentPack<ITensorInfo> &tensors, const Attributes &attributes);
+
+    /** Destructor */
+    ~ClTemplateActivation() override = default;
+
+    /** Prevent instances of this class from being copy constructed */
+    ClTemplateActivation(const ClTemplateActivation &activation) = delete;
+
+    /** Prevent instances of this class from being copied */
+    ClTemplateActivation &operator=(const ClTemplateActivation &activation) = delete;
+
+    /** Allow instances of this class to be move constructed */
+    ClTemplateActivation(ClTemplateActivation &&activation) = default;
+
+    /** Allow instances of this class to be moved */
+    ClTemplateActivation &operator=(ClTemplateActivation &&activation) = default;
+
+    /** Generate kernel component name */
+    std::string get_name() const override;
+
+    /** Generate kernel component code template
+     *
+     * @param[in] comp_group Component group of which the component is a part of
+     *
+     * @return std::string Component code
+     */
+    std::string get_component_code(const ComponentGroup &comp_group) const override;
+
+    /** Declare all variables used by the component in the @p vtable
+     *
+     * @param[out] vtable     Variable table
+     * @param[in]  comp_group Component group of which the component is a part of
+     */
+    void declare_variables(GpuKernelVariableTable &vtable, const ComponentGroup &comp_group) const override;
+
+    /** Generate the tag look-up table used to instantiate the component code.
+     *
+     * @param[in] vtable     Variable table
+     * @param[in] comp_group Component group of which the component is a part of
+     *
+     * @return TagLUT  Tag lookup table
+     */
+    TagLUT get_tag_lut(const GpuKernelVariableTable &vtable, const ComponentGroup &comp_group) const override;
+
+    /** Generate the build options used in the component
+     *
+     * @param[in] comp_group Component group of which the component is a part of
+     *
+     * @return CLBuildOptions Build options
+     */
+    CLBuildOptions get_build_options(const ComponentGroup &comp_group) const override;
+
+    /** Generate the component config id string used for tuning */
+    std::string get_config_id() const override;
+
+    /** Generate the header list used in the component */
+    std::set<std::string> get_headers_list() const override;
+
+    /** Generate the execution window for the component */
+    Window get_window() const override;
+
+private:
+    const ITensorInfo *_src;
+    const ITensorInfo *_dst;
+    Attributes         _attributes;
+};
+} // namespace dynamic_fusion
+} // namespace experimental
+} // namespace arm_compute
+#endif /* SRC_DYNAMIC_FUSION_SKETCH_GPU_TEMPLATE_WRITER_CL_CLTEMPLATEACTIVATION */