CK-Tile Grouped GEMM refactor and post PR fixes (#1756)

* Grouped gemm simple code refactor

* Offset invoker

* Invoke generic Run, and replace name of parrtitioner variable

* Tests fix type

* Removed namespaces

* Add template param to avoid implicit cast

* Remove generic function

* Constant value

* underline enum to int16_t

* Generalize partitioner function

* Remove whitespaces

* Rename function

* Using support

* Clang-format

* Clang-format

* Fn-partitioner description fn

* Typo

* Typo 2

* Better description

* Better description

* Refactor after review

* Use ctr instead of set fn

* Inovke ctr and typo

* Comments

* Remove unnecessary comment

* Review, remove modulo

include/ck_tile/host/host_tensor.hpp

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// Copyright (c) 2018-2024, Advanced Micro Devices, Inc. All rights reserved.
+// Copyright (c) 2018-2025, Advanced Micro Devices, Inc. All rights reserved.
 
 #pragma once
 
@@ -678,4 +678,37 @@ struct HostTensor
     Descriptor mDesc;
     Data mData;
 };
+
+template <typename TLayout>
+auto host_tensor_descriptor(std::size_t row, std::size_t col, std::size_t stride, TLayout layout)
+{
+    using namespace ck_tile::literals;
+
+    if constexpr(std::is_same_v<decltype(layout), tensor_layout::gemm::RowMajor>)
+    {
+        return HostTensorDescriptor({row, col}, {stride, 1_uz});
+    }
+    else
+    {
+        return HostTensorDescriptor({row, col}, {1_uz, stride});
+    }
+}
+template <typename TLayout>
+auto get_default_stride(std::size_t row, std::size_t col, std::size_t stride, TLayout layout)
+{
+    if(stride == 0)
+    {
+        if constexpr(std::is_same_v<decltype(layout), tensor_layout::gemm::RowMajor>)
+        {
+            return col;
+        }
+        else
+        {
+            return row;
+        }
+    }
+    else
+        return stride;
+}
+
 } // namespace ck_tile