make.inc.cpu

# This is an example configuration for CPU backend (default)

# Uncomment to use single precision (default is double precision)
# H2OPUS_USE_SINGLE_PRECISION = 1

# detect if MKL is available
ifneq ($(MKLROOT),)
  # Tell H2OPUS to take advantage of MKL routines
  H2OPUS_USE_MKL = 1
else
  ifdef H2OPUS_USE_MKL
    undefine H2OPUS_USE_MKL
  endif
endif

# C++ compiler
CXX ?= g++

# if you want to use the distributed version, use the MPI compiler
# H2OPUS_USE_MPI = 1
# CXX = mpicxx

# Compiler flags
CXXFLAGS = -Wall -fPIC -fopenmp -O3 -std=c++14 -pthread -DH2OPUS_PROFILING_ENABLED

# Linker flags
LDFLAGS = -lstdc++ -ldl -lpthread -lm -fopenmp

# special math headers and linking line
ifneq ($(MKLROOT),)
  # We use the random number generator library VSL
  BLAS_INCDIR = $(MKLROOT)/include
  #alternatively, we can use CXXCPPFLAGS
  #CXXCPPFLAGS += -I/$(MKLROOT)/include

  # We link against the multithreaded version
  # BLAS calls within batched routines will be sequential because we use
  #   mkl_domain_set_num_threads(H2OPUS_BATCH_BLAS_THREADS, MKL_DOMAIN_BLAS)
  # use CXXCPPFLAGS = -DH2OPUS_BATCH_BLAS_THREADS=n to change the default value of 1
  BLAS_LIBS = -Wl,-rpath,$(MKLROOT)/lib/intel64 -L$(MKLROOT)/lib/intel64 -lmkl_intel_lp64 -lmkl_gnu_thread -lmkl_core
else
  # this example file uses openblas
  # but you can use your favorite BLAS/LAPACK distro
  # H2OPUS has special support for
  # - MKL (see above)
  # - BLIS/FLAME (see make.inc.aocl)
  # - ESSL (see make.inc.ibm)
  # - ASL (see make.inc.nec)
  ifneq ($(OPENBLAS_DIR),)
    BLAS_LIBS = -Wl,-rpath,$(OPENBLAS_DIR)/lib -L$(OPENBLAS_DIR)/lib -lopenblas
  else # fallback to system-wide availability
    BLAS_LIBS = -llapack -lblas
  endif
  # Specify Fortran name mangling (default is add)
  # H2OPUS_FMANGLE_TYPE = add       # e.g. dgemm -> dgemm_
  # H2OPUS_FMANGLE_TYPE = upper     # e.g. dgemm -> DGEMM
  # H2OPUS_FMANGLE_TYPE = nochange  # e.g. dgemm -> dgemm
endif

# for CPU only builds, we need Thrust headers
THRUST_INCDIR = $(THRUST_DIR)/include
#alternatively, we can use CXXCPPFLAGS
#CXXCPPFLAGS += $(THRUST_DIR)/include