[CK_BUILDER] Refactor convolution signature to provide data type/layout/elementwise op per tensor (#3331)

* Separate layouts into separate entities for input, weight, and output tensors.

* Add test for handling bias tensor layouts.

* Use instance string in builder tests.

* Add handling of output bias data types and layouts.

* Generalize handling of the elementwise ops.

* Test fix.

* Create builder for layouts.

* Layout builder improvements.

* Improve layout builder.

* Simplify bias layout handling.

* Code clean-up.

* Move layout utils into separate file.

* Remove hard-coded layout combinations.

* Small code clean-up.

* Move data type utils into a separate file.

* Add data types, layouts, and elementwise ops per conv tensor.

* Builder bug fixes after refactoring.

* Working baseline.

* Make signature definition look nice in the test code.

* Move TensorConfig into test implementations.

* Fix all fwd conv builder tests.

* Fix conv traits and descriptors tests.

* More factory assets under a separate directory.

* Fix building conv traits.

* Fix clang-format.

* Add Readme doc to describe the design.

* Add link to main Readme. Fix links in the builder design doc.

* Clean-up data type/layout/elementwise op conversions.

* Switch from dimension and tensor type specific layouts to a flat list of tensor layouts.

* Fix clang-formatting.

* Fix clang-format for test code.

* Simplify fwd conv signature definitions in the test code.

* Remove accidental edits.

* Fix comment string.

* Fix instance factory after rebase.

* Fix tests after rebase.

* Unify layout handling.

* Add more conv layout unit tests.

* Clang-format.

* Fix merge conflicts.

* Improve elementwise op handling.

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Co-authored-by: Ville Pietilä <>

experimental/builder/test/utils/ckb_conv_test_utils.hpp

@@ -15,7 +15,7 @@ constexpr void run_test(const std::vector<std::string>& kernel_instance_componen
 {
     auto instance = typename Builder::Instance{};
 
-    const auto kernel_string = instance.GetTypeString();
+    const auto kernel_string = instance.GetInstanceString();
     std::cout << "Generated kernel: " << kernel_string << std::endl;
     EXPECT_GT(kernel_string.size(), 0);