cmake_minimum_required(VERSION 3.18)

# set the project name
project(NUMA_Slow_Fast_Datamigration_Test VERSION 0.1)

# specify the C standard
set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED True)

#set flags on need                       cross compile for sapphirerapids architecture
set(CMAKE_CXX_FLAGS  "${CMAKE_CXX_FLAGS} -march=sapphirerapids")
#set flags on need                       cross compile for skylake micro architecture
#set(CMAKE_CXX_FLAGS  "${CMAKE_CXX_FLAGS} -march=skylake-avx512")
#set flags on need                       cross compile for knights landing micro architecture (for debugging)
#set(CMAKE_CXX_FLAGS  "${CMAKE_CXX_FLAGS} -mavx512f -mavx512cd -mavx512er -mavx512pf")

#suppress selected! warnigs that are not very important to resolve. This is to keep the compileation output clean
set(SUPPRESS_WARNINGS "-Wno-literal-suffix -Wno-volatile")

set(DEBUG_FLAGS "-g3" "-ggdb")
set(RELEASE_FLAGS "-O3")

#set flags used for Release and Debug build type
add_compile_options(
    "$<$<CONFIG:Release>:${RELEASE_FLAGS}>"
    "$<$<CONFIG:Debug>:${DEBUG_FLAGS}>"
)

# evaluate custom variables
function(eval vname vvalid vdefault)
  # is variable is set to the below value if its not already defined from the comand line 
  set(VALID ${vvalid} CACHE INTERNAL "Possible values for ${vname}")
  set(${vname} ${vdefault} CACHE STRING "The barrier mode")
  # command for GUI shenanigans
  set_property(CACHE ${vname} PROPERTY STRINGS VALID)

  if(${vname} IN_LIST VALID)
    message(STATUS "Variable ${vname} = ${${vname}}")
  else()
    message(STATUS "Variable ${vname} has invalid value ${${vname}}")
    # set the fallback value for use in parent function
    unset(${vname} CACHE)
    message(STATUS "Fallback to default: ${vname} = ${vdefault}")
    set(${vname} ${vdefault} PARENT_SCOPE)
  endif()
endfunction()

eval(WSUPPRESS "suppress;show" "show")
if($<STREQUAL:${BUFFER_LIMIT},suppress> EQUAL 1)
  add_compile_options("${SUPPRESS_WARNINGS}")
endif()

eval(BARRIER_MODE "global;local" "global")
add_definitions(-DBARRIER_MODE="${BARRIER_MODE}")

eval(BUFFER_LIMIT "unlimited;limited" "unlimited")
add_definitions(-DBUFFER_LIMIT=$<STREQUAL:${BUFFER_LIMIT},limited>)

eval(QUERY "simple;complex" "simple")
add_definitions(-DQUERY=$<STREQUAL:${QUERY},simple>)

eval(THREAD_FACTOR "1;2;3;4;5;6;7;8;9;10" "1")
add_definitions(-DTHREAD_GROUP_MULTIPLIER=${THREAD_FACTOR})

# build directory
set(CMAKE_BINARY_DIR "../bin") #relative to inside build 
set(EXECUTABLE_OUTPUT_PATH ${CMAKE_BINARY_DIR})

# include directories
include_directories(src/utils)
include_directories(src/algorithm)
include_directories(src/algorithm/operators)

# link libraries 
link_libraries(-lnuma -lpthread -l:libdml.a)

# Add targets only below   
# specify build targets
add_executable(MAXBench src/benchmark/MAX_benchmark.cpp)