[cutlass] Use copy_if_different to avoid recompilation of generated cutlass kernel

cmake/external/cutlass.cmake

@@ -42,20 +42,33 @@ ExternalProject_Add(
   INSTALL_COMMAND ""
   TEST_COMMAND "")
 
+set(gemm_operations_file
+    ${CMAKE_SOURCE_DIR}/paddle/phi/kernels/sparse/gpu/cutlass_generator/generated/gemm/all_gemm_operations.h
+)
+set(configurations_file
+    ${CMAKE_SOURCE_DIR}/paddle/phi/kernels/sparse/gpu/cutlass_generator/generated/gemm/configurations.h
+)
+set(tmp_gemm_operations_file ${gemm_operations_file}.tmp)
+set(tmp_configurations_file ${configurations_file}.tmp)
+
 add_custom_target(
   cutlass_codegen
-  COMMAND
-    rm -rf
-    ${CMAKE_SOURCE_DIR}/paddle/phi/kernels/sparse/gpu/cutlass_generator/build
-  COMMAND
-    mkdir -p
-    ${CMAKE_SOURCE_DIR}/paddle/phi/kernels/sparse/gpu/cutlass_generator/build/generated/gemm
   COMMAND
     ${PYTHON_EXECUTABLE} -B
     ${CMAKE_SOURCE_DIR}/paddle/phi/kernels/sparse/gpu/cutlass_generator/gather_gemm_scatter_generator.py
     "${THIRD_PARTY_PATH}/cutlass/src/extern_cutlass/tools/library/scripts/"
-    "${CMAKE_SOURCE_DIR}/paddle/phi/kernels/sparse/gpu/cutlass_generator/build"
+    "${CMAKE_SOURCE_DIR}/paddle/phi/kernels/sparse/gpu/cutlass_generator"
     "${CMAKE_CUDA_COMPILER_VERSION}"
+  COMMAND ${CMAKE_COMMAND} -E copy_if_different ${tmp_gemm_operations_file}
+          ${gemm_operations_file}
+  COMMAND
+    ${CMAKE_COMMAND} -E echo
+    "copy_if_different ${tmp_gemm_operations_file} to ${gemm_operations_file}"
+  COMMAND ${CMAKE_COMMAND} -E copy_if_different ${tmp_configurations_file}
+          ${configurations_file}
+  COMMAND
+    ${CMAKE_COMMAND} -E echo
+    "copy_if_different ${tmp_configurations_file} to ${configurations_file}"
   VERBATIM)
 
 add_library(cutlass INTERFACE)

paddle/phi/kernels/sparse/gpu/cutlass_generator/gather_gemm_scatter_manifest.py

@@ -29,6 +29,13 @@ def __init__(self, generated_path, kind, args):
             OperationKind.Gemm: EmitGatherGemmScatterConfigurationLibrary
         }
         self.header_template = "#pragma once\n#ifdef PADDLE_WITH_CUTLASS\n#include \"paddle/phi/kernels/sparse/gpu/cutlass_generator/common.h\"\n"
+        self.configuration_header_template = """
+/*
+  Generated by gemm_operation.py - Do not edit.
+*/
+#pragma once
+#ifdef PADDLE_WITH_CUTLASS
+"""
         self.entry_template = ""
         self.configuration_prototype_template = ""
         self.configuration_template = ""
@@ -58,11 +65,23 @@ def __enter__(self):
 
         self.top_level_path = os.path.join(
             self.operation_path,
-            "all_%s_operations.h" % OperationKindNames[self.kind],
+            "all_%s_operations.h.tmp" % OperationKindNames[self.kind],
         )
 
+        self.configuration_path = os.path.join(
+            self.operation_path, "configurations.h.tmp"
+        ).replace('\\', '/')
+
         self.top_level_file = open(self.top_level_path, "w")
         self.top_level_file.write(self.header_template)
+        self.top_level_file.write(
+            '#include "' + self.operation_path + '/' + 'configurations.h"\n'
+        )
+
+        self.configuration_file = open(self.configuration_path, "w")
+        self.configuration_file.write(self.configuration_header_template)
+        self.configuration_file.write(self.namespace_template)
+        self.configuration_file.close()
 
         self.source_files = [
             self.top_level_path,
@@ -105,14 +124,6 @@ def emit(self, configuration_name, operations):
                 + "<>>,"
             )
 
-        self.top_level_file.write(
-            '#include "'
-            + self.operation_path
-            + '/'
-            + configuration_name
-            + '.h"\n'
-        )
-
     def __exit__(self, exception_type, exception_value, traceback):
         self.top_level_file.write(
             SubstituteTemplate(
@@ -137,6 +148,10 @@ def __exit__(self, exception_type, exception_value, traceback):
         self.top_level_file.write(self.epilogue_template)
         self.top_level_file.close()
 
+        self.configuration_file = open(self.configuration_path, "a")
+        self.configuration_file.write(self.epilogue_template)
+        self.configuration_file.close()
+
 
 class GatherGemmScatterManifest(Manifest):
     def emit(self, target=GeneratorTarget.Library):

paddle/phi/kernels/sparse/gpu/cutlass_generator/gather_gemm_scatter_operation.py

@@ -207,7 +207,7 @@ class EmitGatherGemmScatterConfigurationLibrary(EmitGemmConfigurationLibrary):
     def __init__(self, operation_path, configuration_name):
         self.configuration_name = configuration_name
         self.configuration_path = os.path.join(
-            operation_path, "%s.h" % configuration_name
+            operation_path, "configurations.h.tmp"
         ).replace('\\', '/')
 
         self.instance_emitter = {
@@ -246,9 +246,7 @@ def __init__(self, operation_path, configuration_name):
 """
 
     def __enter__(self):
-        self.configuration_file = open(self.configuration_path, "w")
-        self.configuration_file.write(self.header_template)
-        self.configuration_file.write(self.separator)
+        self.configuration_file = open(self.configuration_path, "a")
 
         self.includes = collections.OrderedDict([])
         self.instance_definitions = []
@@ -259,22 +257,10 @@ def __enter__(self):
 
     def __exit__(self, exception_type, exception_value, traceback):
 
-        # Write includes
-        for incl, _ in self.includes.items():
-            include_statement = "#include \"%s\"\n" % incl
-            self.configuration_file.write(include_statement)
-
-        self.configuration_file.write(self.separator)
-        self.configuration_file.write(self.namespace_template)
-
         # Write instance definitions in top-level namespace
         for instance_definition in self.instance_definitions:
             self.configuration_file.write(instance_definition)
 
-        for instance_wrapper in self.instance_wrappers:
-            self.configuration_file.write(instance_wrapper)
-
-        self.configuration_file.write(self.epilogue_template)
         self.configuration_file.close()
 
 

paddle/phi/kernels/sparse/gpu/gather_gemm_scatter.h

@@ -18,7 +18,7 @@
 #include "paddle/phi/backends/gpu/gpu_context.h"
 #include "paddle/phi/common/data_type.h"
 #include "paddle/phi/kernels/autotune/auto_tune_base.h"
-#include "paddle/phi/kernels/sparse/gpu/cutlass_generator/build/generated/gemm/all_gemm_operations.h"
+#include "paddle/phi/kernels/sparse/gpu/cutlass_generator/generated/gemm/all_gemm_operations.h"
 
 namespace phi {
 namespace sparse {