# See the file README.md for description of the configuration options.
message(STATUS "Using defaults.cmake")
if (NOT CMAKE_BUILD_TYPE)
    set(CMAKE_BUILD_TYPE "Release" CACHE STRING "Build type: Debug, Release, RelWithDebInfo, or MinSizeRel." FORCE)
endif()

# DGTD options.
option(DGTD_USE_OPENMP "Enable the OpenMP backend" ON)
option(DGTD_USE_DOUBLE "Enable the Double Precision FLP usage for CPU calculations" ON)
option(DGTD_USE_DOUBLE_TS "Enable the Double Precision FLP usage for GPU timestepping" OFF)
# option(DGTD_USE_DOUBLE "Enable the Double Precision FLP usage" OFF)
option(DGTD_USE_CUDA "Enable CUDA" ON)
# option(DGTD_USE_CUDA "Enable CUDA" OFF)
# option(DGTD_USE_OPENCL "Enable OpenCL" OFF)
option(DGTD_USE_CUDA_OPENCL "Enable CUDA && OpenCL" OFF)

# GPU MODE
option(CUDA_NON_HEAVY "Enable NON HEAVY MODE" ON)
# option(CUDA_NON_HEAVY "Enable NON HEAVY MODE" OFF)
option(CUDA_GPU_ZERO_COPY "Enable HEAVY ZERO COPY MODE" OFF)    

# LTS MODE
option(DGTD_USE_LTS "Enable LTS MODE" ON)    
# option(DGTD_USE_LTS "Enable LTS MODE" OFF)    


# Set the target CUDA architecture
set(CUDA_ARCH "sm_60" CACHE STRING "Target CUDA architecture.")
set(CUDA_COMPUTE "compute_60" CACHE STRING "Target CUDA virtual architecture.")
set(DGTD_DIR .)

# The *_DIR paths below will be the first place searched for the corresponding
# headers and library. If these fail, then standard cmake search is performed.
# Note: if the variables are already in the cache, they are not overwritten.

set(BLAS_INCLUDE_DIRS "" CACHE STRING "Path to BLAS headers.")
set(BLAS_LIBRARIES "" CACHE STRING "The BLAS library.")
set(LAPACK_INCLUDE_DIRS "" CACHE STRING "Path to LAPACK headers.")
set(LAPACK_LIBRARIES "" CACHE STRING "The LAPACK library.")

# Some useful variables:
set(CMAKE_SKIP_PREPROCESSED_SOURCE_RULES ON) # Skip *.i rules
set(CMAKE_SKIP_ASSEMBLY_SOURCE_RULES  ON)    # Skip *.s rules
# set(CMAKE_VERBOSE_MAKEFILE ON CACHE BOOL "Verbose makefiles.")