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composable_kernel/docs/wrapper.rst
Bartłomiej Kocot f3b6c23ac5 Add blockwise gemm to ck wrapper (#1139)
* Add blockwise gemm to ck wrapper

* Add blockwise gemm traits

* Disable test_gemm for non xdl devices

* Fixes

* Add c layout descritpions
2024-01-31 21:24:40 +01:00

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ReStructuredText

.. meta::
:description: Composable Kernel documentation and API reference library
:keywords: composable kernel, CK, ROCm, API, documentation
.. _wrapper:
********************************************************************
Wrapper
********************************************************************
-------------------------------------
Description
-------------------------------------
.. note::
The wrapper is under development and its functionality is limited.
The CK library provides a lightweight wrapper for more complex operations implemented in
the library.
Example:
.. code-block:: c
const auto shape_4x2x4 = ck::make_tuple(4, ck::make_tuple(2, 4));
const auto strides_s2x1x8 = ck::make_tuple(2, ck::make_tuple(1, 8));
const auto layout = ck::wrapper::make_layout(shape_4x2x4, strides_s2x1x8);
std::array<ck::index_t, 32> data;
auto tensor = ck::wrapper::make_tensor<ck::wrapper::MemoryTypeEnum::Generic>(&data[0], layout);
for(ck::index_t w = 0; w < size(tensor); w++) {
tensor(w) = w;
}
// slice() == slice(0, -1) (whole dimension)
auto tensor_slice = tensor(ck::wrapper::slice(1, 3), ck::make_tuple(ck::wrapper::slice(), ck::wrapper::slice()));
std::cout << "dims:2,(2,4) strides:2,(1,8)" << std::endl;
for(ck::index_t h = 0; h < ck::wrapper::size<0>(tensor_slice); h++)
{
for(ck::index_t w = 0; w < ck::wrapper::size<1>(tensor_slice); w++)
{
std::cout << tensor_slice(h, w) << " ";
}
std::cout << std::endl;
}
Output::
dims:2,(2,4) strides:2,(1,8)
1 5 9 13 17 21 25 29
2 6 10 14 18 22 26 30
Advanced examples:
* `Image to column <https://github.com/ROCm/composable_kernel/blob/develop/client_example/25_wrapper/wrapper_img2col.cpp>`_
-------------------------------------
Layout
-------------------------------------
.. doxygenstruct:: ck::wrapper::Layout
-------------------------------------
Layout helpers
-------------------------------------
.. doxygenfile:: layout_utils.hpp
-------------------------------------
Tensor
-------------------------------------
.. doxygenstruct:: ck::wrapper::Tensor
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Tensor helpers
-------------------------------------
.. doxygenfile:: tensor_utils.hpp
.. doxygenfile:: tensor_partition.hpp
-------------------------------------
Operations
-------------------------------------
.. doxygenfile:: copy.hpp
.. doxygenfile:: gemm.hpp