mirror of
https://github.com/ROCm/composable_kernel.git
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4234b3a691
* Add tensor partition and generic copy for ck wrapper * Update changelog * Stylistic fixes * Change shape/strides logic to descriptor transforms * Fixes * Fix client example * Fix comments
82 lines
2.1 KiB
ReStructuredText
82 lines
2.1 KiB
ReStructuredText
===============
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Wrapper
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===============
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-------------------------------------
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Description
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-------------------------------------
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.. note::
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The wrapper is under development and its functionality is limited.
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CK provides a lightweight wrapper for more complex operations implemented in
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the library. It allows indexing of nested layouts using a simple interface
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(avoiding complex descriptor transformations) and memory access (using Tensor).
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Example:
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.. code-block:: c
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const auto shape_4x2x4 = ck::make_tuple(4, ck::make_tuple(2, 4));
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const auto strides_s2x1x8 = ck::make_tuple(2, ck::make_tuple(1, 8));
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const auto layout = ck::wrapper::make_layout(shape_4x2x4, strides_s2x1x8);
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std::array<ck::index_t, 32> data;
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auto tensor = ck::wrapper::make_tensor<ck::wrapper::MemoryTypeEnum::Generic>(&data[0], layout);
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for(ck::index_t w = 0; w < size(tensor); w++) {
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tensor(w) = w;
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}
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// slice() == slice(0, -1) (whole dimension)
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auto tensor_slice = tensor(ck::wrapper::slice(1, 3), ck::make_tuple(ck::wrapper::slice(), ck::wrapper::slice()));
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std::cout << "dims:2,(2,4) strides:2,(1,8)" << std::endl;
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for(ck::index_t h = 0; h < ck::wrapper::size<0>(tensor_slice); h++)
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{
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for(ck::index_t w = 0; w < ck::wrapper::size<1>(tensor_slice); w++)
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{
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std::cout << tensor_slice(h, w) << " ";
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}
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std::cout << std::endl;
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}
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Output::
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dims:2,(2,4) strides:2,(1,8)
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1 5 9 13 17 21 25 29
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2 6 10 14 18 22 26 30
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-------------------------------------
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Layout
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-------------------------------------
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.. doxygenstruct:: ck::wrapper::Layout
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-------------------------------------
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Layout helpers
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-------------------------------------
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.. doxygenfile:: layout_utils.hpp
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-------------------------------------
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Tensor
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-------------------------------------
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.. doxygenstruct:: ck::wrapper::Tensor
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-------------------------------------
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Tensor helpers
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-------------------------------------
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.. doxygenfile:: tensor_utils.hpp
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.. doxygenfile:: tensor_partition.hpp
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-------------------------------------
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Operations
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-------------------------------------
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.. doxygenfile:: copy.hpp
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