Add output operator for dynamic fusion

* The output of the fused operator must be explicitly specified
  using GpuOutput operator.
* Any temporary tensors used to connect the output of an operator
  to the input of another operator will be marked as no-alloc
  and won't be allocated as a tensor in the memory.

Resolves: COMPMID-5771
Signed-off-by: Viet-Hoa Do <viet-hoa.do@arm.com>
Change-Id: I5ae8e800f8f737db23a055a92b01c4f1d78c3bb8
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/8794
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: SiCong Li <sicong.li@arm.com>
Reviewed-by: Gian Marco Iodice <gianmarco.iodice@arm.com>
Reviewed-by: Gunes Bayir <gunes.bayir@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Benchmark: Arm Jenkins <bsgcomp@arm.com>

1 files changed, 141 insertions, 0 deletions

diff --git a/src/dynamic_fusion/sketch/gpu/operators/GpuOutput.cpp b/src/dynamic_fusion/sketch/gpu/operators/GpuOutput.cpp
new file mode 100644
index 0000000000..017536df6c
--- /dev/null
+++ b/src/dynamic_fusion/sketch/gpu/operators/GpuOutput.cpp
@@ -0,0 +1,141 @@
+/*
+ * 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.
+ */
+
+#include "arm_compute/dynamic_fusion/sketch/gpu/operators/GpuOutput.h"
+
+#include "src/core/helpers/AutoConfiguration.h"
+#include "src/common/utils/Log.h"
+
+#include "src/dynamic_fusion/sketch/ArgumentPack.h"
+#include "src/dynamic_fusion/sketch/gpu/GpuWorkloadSketchImpl.h"
+#include "src/dynamic_fusion/sketch/gpu/components/cl/ClComponentStore.h"
+
+namespace arm_compute
+{
+namespace experimental
+{
+namespace dynamic_fusion
+{
+namespace
+{
+constexpr GpuOperatorType operator_type = GpuOperatorType::Simple;
+}
+
+Status GpuOutput::is_supported_op(const GpuWorkloadContext &context,
+                                  const ITensorInfo        *src,
+                                  const ITensorInfo        *dst)
+{
+    ARM_COMPUTE_RETURN_ERROR_ON_NULLPTR(src, dst);
+
+    // Initialize the destination tensor info.
+    TensorInfo dst_to_validate = *dst;
+    auto_init_if_empty(dst_to_validate, *src);
+
+    ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_DATA_TYPES(src, &dst_to_validate);
+    ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_SHAPES(src, &dst_to_validate);
+
+    ARM_COMPUTE_UNUSED(context);
+    return Status{};
+}
+
+Status GpuOutput::validate_op(const GpuWorkloadSketch &sketch,
+                              const ITensorInfo       *src,
+                              const ITensorInfo       *dst)
+{
+    ARM_COMPUTE_RETURN_ERROR_ON_NULLPTR(src, dst);
+    ARM_COMPUTE_RETURN_ERROR_ON(!src->has_valid_id());
+    ARM_COMPUTE_RETURN_ERROR_ON(!dst->has_valid_id());
+
+    // Initialize the destination tensor info.
+    TensorInfo dst_to_validate = *dst;
+    auto_init_if_empty(dst_to_validate, *src);
+
+    ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_DATA_TYPES(src, &dst_to_validate);
+    ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_SHAPES(src, &dst_to_validate);
+
+    // Perform fusion test.
+    ArgumentPack<ITensorInfo> tensors;
+    tensors.add_const_tensor(ACL_SRC_0, src);
+    tensors.add_const_tensor(ACL_DST_0, &dst_to_validate);
+
+    const auto group = sketch.implementation().operator_group();
+    const auto op = group.new_operator(operator_type, tensors);
+    const auto success = group.try_add_operator(op);
+
+    ARM_COMPUTE_RETURN_ERROR_ON_MSG(!success, "This operator cannot be fused into the workload.");
+    ARM_COMPUTE_UNUSED(success);
+
+    const auto status = is_supported_op(*sketch.gpu_context(), src, dst);
+    return status;
+}
+
+void GpuOutput::create_op(GpuWorkloadSketch &sketch,
+                          ITensorInfo       *src,
+                          ITensorInfo       *dst)
+{
+    ARM_COMPUTE_LOG_PARAMS(src, dst);
+    ARM_COMPUTE_ERROR_THROW_ON(GpuOutput::validate_op(sketch, src, dst));
+
+    // Auto initialize dst tensor info if empty
+    auto_init_if_empty(*dst, *src);
+
+    // Translate into components and add to component graph
+    auto &comp_graph = sketch.implementation().component_graph();
+    const auto sketch_ctx = sketch.implementation().context();
+
+    if(sketch_ctx->gpu_language() == GpuLanguage::OpenCL)
+    {
+        ARM_COMPUTE_ERROR_ON(sketch_ctx->cl_compile_context() == nullptr);
+
+        // Add store component
+        {
+            IGpuKernelComponent::Properties properties;
+            properties.stage(UnitWorkloadStage{ UnitWorkloadStage::Stage::Run });
+
+            ArgumentPack<ITensorInfo> arguments;
+            arguments.add_const_tensor(ACL_SRC_0, src);
+            arguments.add_const_tensor(ACL_DST_0, dst);
+            comp_graph.add_new_component<ClComponentStore>(properties, arguments);
+        }
+    }
+    else
+    {
+        ARM_COMPUTE_ERROR("Unimplemented Gpu language");
+    }
+
+    // Set up fusion test by adding to the Operator Group
+    // Note this has to be performed after all the components have been successfully added to the component graph
+
+    // Pack tensor infos
+    ArgumentPack<ITensorInfo> tensors;
+    tensors.add_const_tensor(ACL_SRC_0, src);
+    tensors.add_const_tensor(ACL_DST_0, dst);
+
+    const Operator op = sketch.implementation().operator_group().new_operator(operator_type, tensors);
+    sketch.implementation().operator_group().add_operator(op);
+}
+
+} // namespace dynamic_fusion
+} // namespace experimental
+} // namespace arm_compute