From ea47d211d3a720b5b5c3c1c346b10c204bb832f3 Mon Sep 17 00:00:00 2001
From: Yiqun Liu <liuyiqun01@baidu.com>
Date: Tue, 16 Nov 2021 11:03:48 +0800
Subject: [PATCH] Make FLAGS_determinstic effective in conv2d forward. (#37173)

* Make FLAGS_determinstic effective in conv2d forward.

* Add call of SetCinnCudnnDeterministic in cinn_launch op.
---
 paddle/fluid/operators/cinn_launch_op.cc | 8 ++++++++
 paddle/fluid/operators/cinn_launch_op.h  | 9 ++++++++-
 paddle/fluid/operators/conv_cudnn_op.cu  | 5 +++--
 3 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/paddle/fluid/operators/cinn_launch_op.cc b/paddle/fluid/operators/cinn_launch_op.cc
index 3b3e21ed1e1..51c5183241a 100644
--- a/paddle/fluid/operators/cinn_launch_op.cc
+++ b/paddle/fluid/operators/cinn_launch_op.cc
@@ -15,6 +15,8 @@
 #include "paddle/fluid/operators/cinn_launch_op.h"
 #include "paddle/fluid/string/string_helper.h"
 
+DECLARE_bool(cudnn_deterministic);
+
 namespace paddle {
 namespace operators {
 
@@ -67,6 +69,12 @@ void LaunchCinnExecution(const CinnCompiledObject& compiled_obj,
   compiled_obj.runtime_program->Execute(&context.FinalizeArguments());
 }
 
+void SetCinnRuntimeFlags() {
+  VLOG(4) << "Set FLAGS_cinn_cudnn_deterministic to "
+          << FLAGS_cudnn_deterministic;
+  ::cinn::runtime::SetCinnCudnnDeterministic(FLAGS_cudnn_deterministic);
+}
+
 CinnLaunchContext::CinnLaunchContext(const CinnCompiledObject& compiled_obj)
     : paddle2cinn_varmap_(compiled_obj.paddle2cinn_varmap),
       cinn_scope_(compiled_obj.scope) {
diff --git a/paddle/fluid/operators/cinn_launch_op.h b/paddle/fluid/operators/cinn_launch_op.h
index 4e1a05a7a32..348d1dda027 100644
--- a/paddle/fluid/operators/cinn_launch_op.h
+++ b/paddle/fluid/operators/cinn_launch_op.h
@@ -21,6 +21,7 @@
 #include "cinn/hlir/framework/graph_compiler.h"
 #include "cinn/hlir/framework/scope.h"
 #include "cinn/runtime/cinn_runtime.h"
+#include "cinn/runtime/flags.h"
 #include "paddle/fluid/framework/data_type.h"
 #include "paddle/fluid/framework/op_registry.h"
 #include "paddle/fluid/framework/operator.h"
@@ -110,6 +111,9 @@ void DebugCinnCompiledResult(const CinnCompiledObject& result);
 // Launch cinn to execute compiled executable program and wait done
 void LaunchCinnExecution(const CinnCompiledObject& compiled_obj,
                          const CinnLaunchContext& context);
+
+// Set cinn FLAGS (such as FLAGS_cinn_cudnn_deterministic) with paddle's FLAGS.
+void SetCinnRuntimeFlags();
 }  // namespace details
 
 template <typename DeviceContext, typename T>
@@ -202,7 +206,10 @@ class CinnLaunchOpKernel : public framework::OpKernel<T> {
       launch_context->AssignInternalVariable(var_name, tensor);
     }
 
-    // Step 4. Launch CINN to execute the compiled executable program
+    // Step 4. Set CINN runtime FLAGS, such as FLAGS_cinn_cudnn_deterministic.
+    details::SetCinnRuntimeFlags();
+
+    // Step 5. Launch CINN to execute the compiled executable program
     details::LaunchCinnExecution(cinn_compiled_object, *launch_context);
     VLOG(4) << "CinnLaunchOp launch execution done.";
   }
diff --git a/paddle/fluid/operators/conv_cudnn_op.cu b/paddle/fluid/operators/conv_cudnn_op.cu
index c49a3ee1c20..275e81fc7f3 100644
--- a/paddle/fluid/operators/conv_cudnn_op.cu
+++ b/paddle/fluid/operators/conv_cudnn_op.cu
@@ -298,11 +298,12 @@ class CUDNNConvOpKernel : public framework::OpKernel<T> {
     miopenConvFwdAlgorithm_t algo{};
     using search = SearchAlgorithm<miopenConvFwdAlgorithm_t>;
     workspace_size = search::GetWorkspaceSize(args);
-    algo = search::Find<T>(args, exhaustive_search, false, workspace_size, ctx);
+    algo = search::Find<T>(args, exhaustive_search, deterministic,
+                           workspace_size, ctx);
 #else
     cudnnConvolutionFwdAlgo_t algo{};
     using search = SearchAlgorithm<cudnnConvolutionFwdAlgoPerf_t>;
-    algo = search::Find<T>(args, exhaustive_search, false, ctx);
+    algo = search::Find<T>(args, exhaustive_search, deterministic, ctx);
     workspace_size = search::GetWorkspaceSize(args, algo);
 #endif
 
-- 
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