Add profiling barrier option to cmake

Author: lukasdreyer

CMakeLists.txt

@@ -64,6 +64,8 @@ cmake_dependent_option( T8CODE_BUILD_DOCUMENTATION_SPHINX "Build t8code's docume
 set(T8CODE_CUSTOM_PARALLEL_TEST_COMMAND "" CACHE STRING "Define a custom command for parallel tests , e.g.: mpirun -np 8 (overwrites standard mpirun -np 4 if build with mpi)")
 set(T8CODE_CUSTOM_SERIAL_TEST_COMMAND "" CACHE STRING "Define a custom command for serial tests.")
 
+option( T8CODE_ENABLE_PROFILING_BARRIERS "Use MPI-Barriers for profiling" OFF )
+
 # Reading the option T8CODE_TEST_LEVEL: Possible choices are T8_TEST_LEVEL_FULL, T8_TEST_LEVEL_MEDIUM, or T8_TEST_LEVEL_BASIC. Default is T8_TEST_LEVEL_FULL.
 set(T8CODE_TEST_LEVEL "T8_TEST_LEVEL_FULL" CACHE STRING "Test level: T8_TEST_LEVEL_FULL for full tests, T8_TEST_LEVEL_MEDIUM for less thorough tests, T8_TEST_LEVEL_BASIC for minimal tests. (WARNING: Use with care.)")
 set_property(CACHE T8CODE_TEST_LEVEL PROPERTY STRINGS "T8_TEST_LEVEL_FULL" "T8_TEST_LEVEL_MEDIUM" "T8_TEST_LEVEL_BASIC")

benchmarks/CMakeLists.txt

@@ -44,6 +44,9 @@ function( add_t8_benchmark )
     if( T8CODE_EXPORT_COMPILE_COMMANDS )
         set_target_properties( ${ADD_T8_BENCHMARK_NAME} PROPERTIES EXPORT_COMPILE_COMMANDS ON )
     endif( T8CODE_EXPORT_COMPILE_COMMANDS )
+    if( T8CODE_ENABLE_PROFILING_BARRIERS )
+        target_compile_definitions( ${ADD_T8_BENCHMARK_NAME} PUBLIC T8_ENABLE_PROFILE_BARRIER=1 )
+    endif( T8CODE_EXPORT_COMPILE_COMMANDS )
 
     install( TARGETS ${ADD_T8_BENCHMARK_NAME} DESTINATION ${CMAKE_INSTALL_BINDIR} )
 endfunction()

src/CMakeLists.txt

@@ -51,6 +51,10 @@ if( T8CODE_EXPORT_COMPILE_COMMANDS )
   set_target_properties( T8 PROPERTIES EXPORT_COMPILE_COMMANDS ON )
 endif( T8CODE_EXPORT_COMPILE_COMMANDS )
 
+if( T8CODE_ENABLE_PROFILING_BARRIERS )
+  target_compile_definitions( T8 PUBLIC T8_ENABLE_PROFILE_BARRIER=1 )
+endif( T8CODE_EXPORT_COMPILE_COMMANDS )
+
 if( T8CODE_ENABLE_NETCDF )
   target_link_libraries( T8 PUBLIC NetCDF::NetCDF )
   target_compile_definitions(T8 PUBLIC