1 # - Define macro to check if MPI_IN_PLACE exists
3 # GMX_TEST_MPI_IN_PLACE(VARIABLE)
5 # VARIABLE will be set to true if MPI_IN_PLACE exists
8 include(CheckCSourceCompiles)
9 MACRO(GMX_TEST_MPI_IN_PLACE VARIABLE)
10 MESSAGE(STATUS "Checking for MPI_IN_PLACE")
12 set(CMAKE_REQUIRED_DEFINITIONS ${MPI_COMPILE_FLAGS})
13 set(CMAKE_REQUIRED_INCLUDES ${MPI_INCLUDE_PATH})
14 set(CMAKE_REQUIRED_LIBRARIES ${MPI_LIBRARIES})
15 check_c_source_compiles(
19 MPI_Allreduce(MPI_IN_PLACE, buf, 10, MPI_FLOAT, MPI_SUM, MPI_COMM_WORLD);
20 }" MPI_IN_PLACE_COMPILE_OK)
22 if(MPI_IN_PLACE_COMPILE_OK)
23 MESSAGE(STATUS "Checking for MPI_IN_PLACE - yes")
24 set(${VARIABLE} ${MPI_IN_PLACE_COMPILE_OK}
25 "Result of test for MPI_IN_PLACE")
26 else(MPI_IN_PLACE_COMPILE_OK)
27 MESSAGE(STATUS "Checking for MPI_IN_PLACE - no")
28 endif(MPI_IN_PLACE_COMPILE_OK)
29 ENDMACRO(GMX_TEST_MPI_IN_PLACE VARIABLE)