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author | Narumol Prangnawarat <narumol.prangnawarat@arm.com> | 2019-09-16 17:00:22 +0100 |
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committer | Narumol Prangnawarat <narumol.prangnawarat@arm.com> | 2019-09-16 17:00:54 +0100 |
commit | 4dc64a69ba383ece509d442598617445a3b4847f (patch) | |
tree | b50cb259594aa0cf634a4c37657a2c7a50be0c6c /src/backends/reference/workloads/ArgMinMax.cpp | |
parent | a0c7871cf140d1e9cf59a213626ee534c0122c7f (diff) | |
download | armnn-4dc64a69ba383ece509d442598617445a3b4847f.tar.gz |
IVGCVSW-3694 Add ArgMinMax implementation for Ref
* Add ArgMinMax implementation
* Add utility function to get number of elements between axis
* Add utility function to get unsigned axis
* Unit tests for ArgMinMax function
Signed-off-by: Narumol Prangnawarat <narumol.prangnawarat@arm.com>
Change-Id: I7bc3d610dda9526190187eb87394a8ed7a4b5cdd
Diffstat (limited to 'src/backends/reference/workloads/ArgMinMax.cpp')
-rw-r--r-- | src/backends/reference/workloads/ArgMinMax.cpp | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/src/backends/reference/workloads/ArgMinMax.cpp b/src/backends/reference/workloads/ArgMinMax.cpp new file mode 100644 index 0000000000..2687a4e8ac --- /dev/null +++ b/src/backends/reference/workloads/ArgMinMax.cpp @@ -0,0 +1,45 @@ +// +// Copyright © 2019 Arm Ltd. All rights reserved. +// SPDX-License-Identifier: MIT +// + +#include "ArgMinMax.hpp" + +#include <TensorUtils.hpp> + +#include <boost/numeric/conversion/cast.hpp> + +namespace armnn +{ + +void ArgMinMax(Decoder<float>& in, int32_t* out, const TensorInfo& inputTensorInfo, + const TensorInfo& outputTensorInfo, ArgMinMaxFunction function, int axis) +{ + unsigned int uAxis = armnnUtils::GetUnsignedAxis(inputTensorInfo.GetNumDimensions(), axis); + + const unsigned int outerElements = armnnUtils::GetNumElementsBetween(inputTensorInfo.GetShape(), 0, uAxis); + const unsigned int axisSize = inputTensorInfo.GetShape()[uAxis]; + const unsigned int innerElements = armnnUtils::GetNumElementsBetween(inputTensorInfo.GetShape(), + uAxis + 1, + inputTensorInfo.GetNumDimensions()); + + for (unsigned int outer = 0; outer < outerElements; ++outer) { + for (unsigned int inner = 0; inner < innerElements; ++inner) { + in[outer * axisSize * innerElements + inner]; + auto tmpValue = in.Get(); + unsigned int tmpIndex = 0; + for (unsigned int i = 1; i < axisSize; ++i) { + in[(outer * axisSize * innerElements) + (i * innerElements) + inner]; + const auto& value = in.Get(); + if ((function == armnn::ArgMinMaxFunction::Min && value < tmpValue) || + (function == armnn::ArgMinMaxFunction::Max && value > tmpValue)) { + tmpValue = value; + tmpIndex = i; + } + } + out[outer * innerElements + inner] = boost::numeric_cast<int32_t>(tmpIndex); + } + } +} + +} //namespace armnn |