From fcf40649feb6046fb9b1ed984fb9b19422cd5463 Mon Sep 17 00:00:00 2001
From: aamir <araihan@ece.ubc.ca>
Date: Sat, 21 Jul 2018 19:30:40 -0700
Subject: adding the cutlass examples

---
 cutlass-example/cutlass/gemm/hgemm_global_tile.h | 90 ++++++++++++++++++++++++
 1 file changed, 90 insertions(+)
 create mode 100644 cutlass-example/cutlass/gemm/hgemm_global_tile.h

(limited to 'cutlass-example/cutlass/gemm/hgemm_global_tile.h')

diff --git a/cutlass-example/cutlass/gemm/hgemm_global_tile.h b/cutlass-example/cutlass/gemm/hgemm_global_tile.h
new file mode 100644
index 0000000..f14dbb3
--- /dev/null
+++ b/cutlass-example/cutlass/gemm/hgemm_global_tile.h
@@ -0,0 +1,90 @@
+/***************************************************************************************************
+ * Copyright (c) 2017-2018, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted
+ * provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright notice, this list of
+ *       conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *     * Neither the name of the NVIDIA CORPORATION nor the names of its contributors may be used
+ *       to endorse or promote products derived from this software without specific prior written
+ *       permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TOR (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ **************************************************************************************************/
+/*! \file
+    \brief Tile traits used to construct global tile iterator for HGEMM. This is intended to
+      partition the thread block-level tile into 2D subtiles loaded by the threads and facilitate
+      memory accesses larger than 16 bits.
+*/
+#pragma once
+
+#include <cutlass/coord.h>
+#include <cutlass/gemm/gemm_global_tile.h>
+#include <cutlass/matrix_traits.h>
+#include <cutlass/reshape_tile.h>
+
+namespace cutlass {
+namespace gemm {
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+
+template <GemmOperand::Kind kOperand_,
+          MatrixLayout::Kind kLayout_,
+          typename Scalar_,
+          typename Tile_,
+          typename Threads_,
+          int kAccessSize_>
+struct HgemmCrosswiseGlobalTileTraits : public GemmGlobalTileTraits<
+                                            // Which GEMM operand?
+                                            kOperand_,
+                                            // The layout.
+                                            kLayout_,
+                                            // The scalar.
+                                            Scalar_,
+                                            // The tile.
+                                            Tile_,
+                                            // The threads.
+                                            Threads_,
+                                            // The number of scalars per LDG/STG.
+                                            kAccessSize_> {
+  /// The base class.
+  typedef GemmGlobalTileTraits<kOperand_, kLayout_, Scalar_, Tile_, Threads_, kAccessSize_> Base;
+  /// The threads.
+  typedef typename Base::Threads Threads;
+  /// The threads strides.
+  typedef Shape<1, 2, Base::Tile::kC> ThreadsDelta;
+  /// The strides in each dimension between different loads/stores.
+  typedef Shape<Base::Threads::kH * 2, 1, Base::Threads::kW, Base::kAccessSize> Delta;
+  /// The number of iterations needed to load/store the tile.
+  typedef Shape<Base::Tile::kH / Base::Threads::kH / 2,
+                2,
+                Base::Tile::kW / Base::Threads::kW,
+                Base::Tile::kC / Base::kAccessSize>
+      Iterations;
+  /// Computes the thread offset in (H, W) based on thread ID
+  struct ThreadOffset {
+    CUTLASS_HOST_DEVICE
+    Coord<4> operator()() const {
+      int thread_offset_h = threadIdx.x / Threads::kW * ThreadsDelta::kH;
+      int thread_offset_w = threadIdx.x % Threads::kW * ThreadsDelta::kW;
+
+      return make_Coord(0, thread_offset_h, thread_offset_w, 0);
+    }
+  };
+};
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+
+}  // namespace gemm
+}  // namespace cutlass
-- 
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