target.generic-gnu

# Compiler definitions
#
# GNU (cpu only)
#
CPP_FLAGS := -cpp 
CC        := g++
FC        := mpif90
ifeq ($(DO_DBG),1)
  DBG       := -O0 -g -fbacktrace -ffpe-trap=invalid -Wall -Wextra -pedantic -fcheck=all -finit-real=snan
else
  OPT       := -O3 -march=native #-ffast-math # "-ffast-math" leads to code failure in some GNU versions. If it happens, simply use "OPT := -O3 -march=native" or "OPT := -O3"
endif
PRE       := #-fdefault-real-8 -fdefault-double-8

# Take all the compiler flags together
FFLAGS  := $(OPT) $(DBG) $(PRE)
DFLAGS  := -D_TIMING -D_EPA2A -D_DECOMP_X #-D_TWOD
DFLAGS  += -D_OVERWRITE -D_EVEN # FFLAGS_2DECOMP
LDFLAGS :=

# Architecture switches
USE_NVTX = 0

# Required for FFTW
FFTW_HOME := /data/nicolos/numerical_libraries/fftw-3.3.10
LDFLAGS   += -L${FFTW_HOME}/lib -lfftw3

# Required for NVTX
# NVTX_LIB   +=