COMPMID-1765: CPP: Implement TopKV

Change-Id: Ib113f19e3e9ad1f2a3084df25eae38c0131df02d
Reviewed-on: https://review.mlplatform.org/439
Reviewed-by: Manuel Bottini <manuel.bottini@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>

1 files changed, 60 insertions, 0 deletions

diff --git a/arm_compute/runtime/CPP/functions/CPPTopKV.h b/arm_compute/runtime/CPP/functions/CPPTopKV.h
new file mode 100644
index 0000000000..10917be97c
--- /dev/null
+++ b/arm_compute/runtime/CPP/functions/CPPTopKV.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2019 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 __ARM_COMPUTE_CPPTOPKV_H__
+#define __ARM_COMPUTE_CPPTOPKV_H__
+
+#include "arm_compute/runtime/CPP/ICPPSimpleFunction.h"
+
+#include "arm_compute/core/Types.h"
+
+namespace arm_compute
+{
+class ITensor;
+
+/** Basic function to run @ref CPPTopKVKernel */
+class CPPTopKV : public ICPPSimpleFunction
+{
+public:
+    /** Set the input and output of the kernel.
+     *
+     * @param[in]  predictions A batch_size x classes tensor. Data types supported: F16/S32/F32/QASYMM8
+     * @param[in]  targets     A batch_size 1D tensor of class ids. Data types supported: S32
+     * @param[out] output      Computed precision at @p k as a bool 1D tensor. Data types supported: U8
+     * @param[in]  k           Number of top elements to look at for computing precision.
+     */
+    void configure(const ITensor *predictions, const ITensor *targets, ITensor *output, const unsigned int k);
+
+    /** Static function to check if given info will lead to a valid configuration of @ref CPPTopKVKernel
+     *
+     * @param[in] predictions A batch_size x classes tensor info. Data types supported: F16/S32/F32/QASYMM8
+     * @param[in] targets     A batch_size 1D tensor info of class ids. Data types supported: S32
+     * @param[in] output      Computed precision at @p k as a bool 1D tensor info. Data types supported: U8
+     * @param[in] k           Number of top elements to look at for computing precision.
+     *
+     * @return a status
+     */
+    static Status validate(const ITensorInfo *predictions, const ITensorInfo *targets, ITensorInfo *output, const unsigned int k);
+};
+} // namespace arm_compute
+#endif /* __ARM_COMPUTE_CPPTOPKV_H__ */