recreated branch by hand merge with develop branch

src/targets/gpu/CMakeLists.txt

 # ####################################################################################
 # The MIT License (MIT)
 #
-# Copyright (c) 2015-2022 Advanced Micro Devices, Inc. All rights reserved.
+# Copyright (c) 2015-2023 Advanced Micro Devices, Inc. All rights reserved.
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -215,10 +215,14 @@ else()
 endif()
 
 # Check miopen find mode api
+
 include(CheckLibraryExists)
 get_target_property(MIOPEN_LOCATION MIOpen LOCATION)
+get_target_property(ROCBLAS_LOCATION roc::rocblas LOCATION)
 check_library_exists(MIOpen "miopenHiddenSetConvolutionFindMode" "${MIOPEN_LOCATION}" HAS_FIND_MODE_API)
 check_library_exists(MIOpen "miopenFindSolutions" "${MIOPEN_LOCATION}" HAS_FIND_2_API)
+# Beta API for automated GEMM tuning
+check_library_exists(roc::rocblas "rocblas_gemm_ex_get_solutions" "${ROCBLAS_LOCATION}" HAS_ROCBLAS_BETA_FEATURES_API)
 
 set(MIGRAPHX_USE_FIND_2_API "${HAS_FIND_2_API}" CACHE BOOL "")
 
@@ -236,6 +240,13 @@ else()
     message(STATUS "MIOpen does not have find mode api")
 endif()
 
+if(HAS_ROCBLAS_BETA_FEATURES_API)
+    target_compile_definitions(migraphx_gpu PUBLIC -DROCBLAS_BETA_FEATURES_API -DROCBLAS_NO_DEPRECATED_WARNINGS)
+    message(STATUS "MIGraphx is using Beta API of rocBLAS")
+else()
+    message(STATUS "rocBLAS does not have Beta API")
+endif()
+
 target_link_libraries(migraphx_gpu PUBLIC migraphx MIOpen roc::rocblas)
 target_link_libraries(migraphx_gpu PRIVATE migraphx_device migraphx_kernels)
 

src/targets/gpu/include/migraphx/gpu/convolution.hpp

 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2015-2022 Advanced Micro Devices, Inc. All rights reserved.
+ * Copyright (c) 2015-2023 Advanced Micro Devices, Inc. All rights reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -27,6 +27,7 @@
 #include <migraphx/shape.hpp>
 #include <migraphx/generate.hpp>
 #include <migraphx/operation.hpp>
+#include <migraphx/register_op.hpp>
 #include <migraphx/gpu/miopen.hpp>
 #include <migraphx/op/identity.hpp>
 #include <migraphx/op/convolution.hpp>
@@ -35,6 +36,9 @@
 #include <unordered_map>
 #include <migraphx/reflect.hpp>
 #include <migraphx/gpu/context.hpp>
+
+MIGRAPHX_DECLARE_ENV_VAR(MIGRAPHX_ENABLE_CONV_TUNING);
+
 namespace migraphx {
 inline namespace MIGRAPHX_INLINE_NS {
 namespace gpu {
@@ -163,6 +167,20 @@ struct miopen_convolution
         auto w_desc                = make_tensor(reshape_if_1d(inputs[1]), int8_x4_format);
         auto y_desc                = make_tensor(reshape_if_1d(output_shape));
         std::size_t workspace_size = 0;
+
+        // TODO:  Using an environment variable to disable convolution tuning while still allowing
+        // other (i.e. GEMM) tuning with --exhaustive-tune, is a workaround for a problem in which
+        // convolution tuning takes multiple hours.
+        const bool convo_tune_enabled = enabled(MIGRAPHX_ENABLE_CONV_TUNING{});
+        if(ctx.get_exhaustive_tune_flag() and not convo_tune_enabled)
+        {
+            std::cerr
+                << "WARNING: MIGraphX convolution tuning not enabled. To run tuning, set both the "
+                   "env "
+                   "var MIGRAPHX_ENABLE_CONV_TUNING and the command argument --exhaustive-tune."
+                << std::endl;
+        }
+
 #ifdef MIGRAPHX_HAS_FIND_2_API
         {
             auto conv_problem = make_obj<miopen_problem>(
@@ -174,9 +192,10 @@ struct miopen_convolution
 
             auto* miopen_stream_handle = ctx.get_stream().get_miopen();
 
-            solution_ptr = find_solution(
-                miopen_stream_handle, conv_problem.get(), ctx.get_exhaustive_tune_flag());
-            auto status = miopenGetSolutionWorkspaceSize(solution_ptr.get(), &workspace_size);
+            solution_ptr = find_solution(miopen_stream_handle,
+                                         conv_problem.get(),
+                                         ctx.get_exhaustive_tune_flag() and convo_tune_enabled);
+            auto status  = miopenGetSolutionWorkspaceSize(solution_ptr.get(), &workspace_size);
             if(status != miopenStatusSuccess)
                 MIGRAPHX_THROW("MIOpen" + op.name() + " : failed to get solution's workspace size");
 
@@ -233,7 +252,8 @@ struct miopen_convolution
                                                        &perf,
                                                        workspace.implicit(),
                                                        workspace_size,
-                                                       ctx.get_exhaustive_tune_flag());
+                                                       ctx.get_exhaustive_tune_flag() and
+                                                           convo_tune_enabled);
         if(status != miopenStatusSuccess)
             MIGRAPHX_THROW("MIOpen " + op.name() + " : find convolution failed");
         algo = perf.fwd_algo;

src/targets/gpu/include/migraphx/gpu/gemm.hpp

 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2015-2022 Advanced Micro Devices, Inc. All rights reserved.
+ * Copyright (c) 2015-2023 Advanced Micro Devices, Inc. All rights reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -40,9 +40,8 @@ inline namespace MIGRAPHX_INLINE_NS {
 namespace gpu {
 
 struct context;
-
-void blas_shape(const shape& s);
 shape transpose_batch(const shape& s, unsigned trans_batch);
+void blas_shape(const shape& s);
 
 template <class Op>
 struct rocblas_gemm
@@ -53,6 +52,7 @@ struct rocblas_gemm
     bool int8_x4_format  = true;
     bool compute_fp32    = false;
     unsigned trans_batch = 0;
+    int32_t solution_idx = 0;
 
     template <class Self, class F>
     static auto reflect(Self& self, F f)
@@ -62,7 +62,8 @@ struct rocblas_gemm
                               f(self.beta, "beta"),
                               f(self.int8_x4_format, "int8_x4_format"),
                               f(self.compute_fp32, "compute_fp32"),
-                              f(self.trans_batch, "trans_batch")));
+                              f(self.trans_batch, "trans_batch"),
+                              f(self.solution_idx, "solution_idx")));
     }
 
     std::string name() const
@@ -113,17 +114,19 @@ struct rocblas_gemm
     {
         if(this->name() == "gpu::gemm")
         {
-            gemm(ctx, output_shape, args, alpha, beta, int8_x4_format, compute_fp32);
+            gemm_compute(
+                ctx, output_shape, args, alpha, beta, int8_x4_format, compute_fp32, solution_idx);
         }
         else
         {
-            gemm(ctx,
-                 output_shape,
-                 args,
-                 int32_t(alpha),
-                 int32_t(beta),
-                 int8_x4_format,
-                 compute_fp32);
+            gemm_compute(ctx,
+                         output_shape,
+                         args,
+                         int32_t(alpha),
+                         int32_t(beta),
+                         int8_x4_format,
+                         compute_fp32,
+                         solution_idx);
         }
         return args.back();
     }
@@ -132,6 +135,40 @@ struct rocblas_gemm
     {
         return shapes.size() - 1;
     }
+
+    void finalize(context& ctx, const shape& output_shape, const std::vector<shape>& input_shapes)
+    {
+#ifdef ROCBLAS_BETA_FEATURES_API
+        if(ctx.get_exhaustive_tune_flag() && solution_idx == 0)
+        {
+            if(this->name() == "gpu::gemm")
+            {
+                solution_idx = gemm_finalize(ctx,
+                                             output_shape,
+                                             input_shapes,
+                                             alpha,
+                                             beta,
+                                             int8_x4_format,
+                                             compute_fp32,
+                                             solution_idx);
+            }
+            else
+            {
+                solution_idx = gemm_finalize(ctx,
+                                             output_shape,
+                                             input_shapes,
+                                             int32_t(alpha),
+                                             int32_t(beta),
+                                             int8_x4_format,
+                                             compute_fp32,
+                                             solution_idx);
+            }
+        }
+#else
+        // suppress compiler warnings
+        (void)ctx, (void)output_shape, (void)input_shapes;
+#endif
+    }
 };
 
 } // namespace gpu

src/targets/gpu/include/migraphx/gpu/gemm_impl.hpp

 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2015-2022 Advanced Micro Devices, Inc. All rights reserved.
+ * Copyright (c) 2015-2023 Advanced Micro Devices, Inc. All rights reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -24,28 +24,75 @@
 #ifndef MIGRAPHX_GUARD_RTGLIB_GEMM_IMPL_HPP
 #define MIGRAPHX_GUARD_RTGLIB_GEMM_IMPL_HPP
 
+#include <iterator>
 #include <migraphx/shape.hpp>
 #include <migraphx/argument.hpp>
+#include <migraphx/generate.hpp>
 #include <migraphx/gpu/context.hpp>
+#include <migraphx/reduce_dims.hpp>
+#include <migraphx/gpu/hip.hpp>
+#include <migraphx/time.hpp>
+
+using milliseconds = std::chrono::duration<double, std::milli>;
+using microseconds = std::chrono::duration<double, std::micro>;
 
 namespace migraphx {
 inline namespace MIGRAPHX_INLINE_NS {
 namespace gpu {
 
-void gemm(context& ctx,
-          const shape& output_shape,
-          const std::vector<argument>& args,
-          float alpha,
-          float beta,
-          bool int8_x4_format,
-          bool compute_fp32);
-void gemm(context& ctx,
-          const shape& output_shape,
-          const std::vector<argument>& args,
-          int32_t alpha,
-          int32_t beta,
-          bool int8_x4_format,
-          bool compute_fp32);
+#if ROCBLAS_VERSION_MAJOR >= 2 && ROCBLAS_VERSION_MINOR >= 38
+using flag_type = rocblas_gemm_flags;
+#else
+using flag_type = int;
+#endif
+
+/**
+ * @brief Templated implementations of the compute() and finalize() methods of the Gemm operator.
+ *        For each function there are overloads using either float or int32_t for the arguments
+ * alpha and beta.
+ *
+ * @param ctx .
+ * @param output_shape .
+ * @param args .
+ * @param alpha .
+ * @param beta .
+ * @param int8_x4_format .
+ * @param compute_fp32 .
+ */
+void gemm_compute(context& ctx,
+                  const shape& output_shape,
+                  const std::vector<argument>& args,
+                  float alpha,
+                  float beta,
+                  bool int8_x4_format,
+                  bool compute_fp32,
+                  int32_t solution_idx);
+
+void gemm_compute(context& ctx,
+                  const shape& output_shape,
+                  const std::vector<argument>& args,
+                  int32_t alpha,
+                  int32_t beta,
+                  bool int8_x4_format,
+                  bool compute_fp32,
+                  int32_t solution_idx);
+
+int32_t gemm_finalize(context& ctx,
+                      const shape& output_shape,
+                      const std::vector<shape>& input_shapes,
+                      float alpha,
+                      float beta,
+                      bool int8_x4_format,
+                      bool compute_fp32);
+
+int32_t gemm_finalize(context& ctx,
+                      const shape& output_shape,
+                      const std::vector<shape>& input_shapes,
+                      int32_t alpha,
+                      int32_t beta,
+                      bool int8_x4_format,
+                      bool compute_fp32,
+                      int32_t solution_idx);
 
 } // namespace gpu
 } // namespace MIGRAPHX_INLINE_NS

src/targets/gpu/include/migraphx/gpu/rocblas.hpp

 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2015-2022 Advanced Micro Devices, Inc. All rights reserved.
+ * Copyright (c) 2015-2023 Advanced Micro Devices, Inc. All rights reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -25,6 +25,7 @@
 #define MIGRAPHX_GUARD_MIGRAPHLIB_ROCBLAS_HPP
 #include <migraphx/manage_ptr.hpp>
 #include <migraphx/config.hpp>
+// ROCBLAS_BETA_FEATURES_API is defined by CMake, if available.
 #include <rocblas/rocblas.h>
 
 namespace migraphx {

test/gpu/gemm_tune.cpp

+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015-2023 Advanced Micro Devices, Inc. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <iostream>
+#include <vector>
+#include <migraphx/gpu/gemm.hpp>
+#include <hip/hip_runtime_api.h>
+#include <migraphx/gpu/target.hpp>
+#include <migraphx/verify.hpp>
+#include <test.hpp>
+#include <migraphx/make_op.hpp>
+#include <migraphx/iterator_for.hpp>
+
+// includes needed for run_lowering
+#include <migraphx/gpu/allocation_model.hpp>
+#include <migraphx/gpu/context.hpp>
+#include <migraphx/gpu/lowering.hpp>
+#include <migraphx/gpu/target.hpp>
+#include <migraphx/auto_contiguous.hpp>
+#include <migraphx/instruction.hpp>
+#include <migraphx/pass_manager.hpp>
+
+// Abbreviated lowering; we don't need the usual cleanup passes for this test
+void run_lowering(migraphx::program& p, bool offload_copy = false)
+{
+    auto ctx = migraphx::gpu::context{};
+    migraphx::run_passes(
+        *p.get_main_module(),
+        {migraphx::auto_contiguous{}, migraphx::gpu::lowering{&ctx, offload_copy}});
+}
+
+/**
+ * Tests the automatic GEMM tuning feature.  In the finalize() method of the gemm op,
+ * rocBLAS API functions are called to quickly benchmark all the GEMM solutions
+ * available in the currently installed rocBLAS library and choose the index of the fastest.
+ */
+TEST_CASE(gemm_tune_with_rocblas)
+{
+    migraphx::program p;
+    auto* mm = p.get_main_module();
+
+    migraphx::shape sa{migraphx::shape::float_type, {4, 2}};
+    migraphx::shape sb{migraphx::shape::float_type, {2, 3}};
+    auto a = mm->add_parameter("a", sa);
+    auto b = mm->add_parameter("b", sb);
+
+    migraphx::operation dot_op = migraphx::make_op("dot");
+    mm->add_instruction(dot_op, a, b);
+
+    // lowering adds gemm implementation for dot operator
+    run_lowering(p);
+
+    migraphx::target gpu_t = migraphx::gpu::target{};
+    migraphx::compile_options options;
+    options.exhaustive_tune = true;
+    p.compile(gpu_t, options);
+
+    migraphx::value solution_idx(0);
+    for(auto ins : iterator_for(*p.get_main_module()))
+    {
+        if(ins->name() == "gpu::gemm")
+        {
+            auto gemm_op = migraphx::get_operation(ins);
+
+            // tuned solution index is not deterministic, but anything other than 0
+            // (default, invalid, or not available) is good.
+            // gemm_op.to_value().debug_print();
+            solution_idx = gemm_op.to_value()["solution_idx"];
+            break;
+        }
+    }
+#ifdef ROCBLAS_BETA_FEATURES_API
+    EXPECT(0 != solution_idx.to<std::size_t>());
+#else
+    EXPECT(0 == solution_idx.to<std::size_t>());
+#endif
+}
+
+// TODO:  make tests that run both strided and not-strided GEMMs.  Also, try tuning with an invalid
+// start value.
+
+int main(int argc, const char* argv[]) { test::run(argc, argv); }