Makefile

#CAMB Makefile

#Set FISHER=Y to compile bispectrum fisher matrix code
FISHER=

#Set FORUTILSPATH to the path where the libforutils.a file can be found.
#The OUTPUT_DIR will be appended.

ifneq "$(wildcard ../forutils)" ""
FORUTILSPATH ?= $(shell pwd)/../forutils
else
ifneq "$(wildcard ../../forutils)" ""
FORUTILSPATH ?= $(shell pwd)/../../forutils
else
ifneq "$(wildcard ../../../forutils)" ""
FORUTILSPATH ?= $(shell pwd)/../../../forutils
endif
endif
endif

ifeq ($(FORUTILSPATH),)
$(error Use  git clone --recurse-submodules, install forutils from https://github.com/cmbant/forutils, or set FORUTILSPATH variable)
endif

#native optimization does not work on Mac gfortran or heterogeneous clusters
CLUSTER_SAFE ?= 0
ifneq ($(CLUSTER_SAFE), 0)
NONNATIVE = 1
endif

#Will detect ifort/gfortran or edit for your compiler
ifneq ($(COMPILER),gfortran)
ifortErr = $(shell which ifort >/dev/null 2>&1; echo $$?)
else
ifortErr = 1
endif

ifeq "$(ifortErr)" "0"

#Intel compiler
F90C     = ifort

ifortVer_major = $(shell ifort -v 2>&1 | cut -d " " -f 3 | cut -d. -f 1)
compiler_ver = $(shell ifort -v 2>&1)
#other tests will be done by forutils
ifeq ($(shell test $(ifortVer_major) -lt 18; echo $$?),0)
$(warning ** ifort version lower than 18.0.1 may not work with the Python wrapper **)
endif


ifeq ($(shell test $(ifortVer_major) -gt 15; echo $$?),0)
COMMON_FFLAGS = -fpp -qopenmp
else
COMMON_FFLAGS = -fpp -openmp
endif
COMMON_FFLAGS += -gen-dep=$$*.d

FFLAGS = -fp-model precise -W0 -WB $(COMMON_FFLAGS)
DEBUGFLAGS =  -g -check all -check noarg_temp_created -traceback -fpe0 $(COMMON_FFLAGS)

ifeq ($(shell uname -s),Darwin)
SFFLAGS = -dynamiclib #-fpic
else
SFFLAGS = -shared -fpic
endif

ifdef NONNATIVE
FFLAGS+=-O3 -ipo -axCORE-AVX2
else
FFLAGS+=-fast
endif

## This is flag is passed to the Fortran compiler allowing it to link C++ if required (not usually):
F90CRLINK = -cxxlib
ifneq "$(ifortVer_major)" "14"
F90CRLINK += -qopt-report=0 -qopt-report-phase=vec
else
F90CRLINK += -vec_report0
endif
MODOUT = -module $(OUTPUT_DIR)
AR     = xiar
SMODOUT = -module $(DLL_DIR)
ifneq ($(FISHER),)
FFLAGS += -mkl
endif

else
gfortErr = $(shell which gfortran >/dev/null; echo $$?)
ifeq "$(gfortErr)" "0"
#Gfortran compiler (version 6+):
compiler_ver = $(shell gfortran -dumpversion 2>&1)
COMPILER = gfortran
F90C     = gfortran
COMMON_FFLAGS = -MMD -cpp -ffree-line-length-none -fmax-errors=4 -fopenmp
# Using -ffast-math causes differences between Debug and Release configurations.
FFLAGS = -O3 $(COMMON_FFLAGS)
DEBUGFLAGS = -g -fbacktrace -ffpe-trap=invalid,overflow,zero -fbounds-check $(COMMON_FFLAGS)
ifeq ($(shell uname -s),Darwin)
SFFLAGS = -dynamiclib #-fpic
ifneq ($(shell echo $(compiler_ver) | awk '{print ($$1 >= 14.0)}'),0)
SFFLAGS += -static-libgfortran -static-libgcc -static-libquadmath 
endif
else
SFFLAGS = -shared -fpic
endif



MODOUT =  -J$(OUTPUT_DIR)
SMODOUT = -J$(DLL_DIR)

ifneq ($(FISHER),)
F90CRLINK += -lblas -llapack
endif

ifeq ($(shell uname -s),Darwin)
NONNATIVE = 1
endif
ifndef NONNATIVE
#Note this seems to make code slightly slower in some cases, use CLUSTER_SAFE=1 to test without
FFLAGS+=-march=native
endif
endif
endif

IFLAG = -I

#Settings for building camb_fits
#Location of FITSIO and name of library
FITSDIR       ?= /usr/local/lib
FITSLIB       = cfitsio
#Location of HEALPIX for building camb_fits
HEALPIXDIR    ?= /usr/local/healpix

ifneq ($(FISHER),)
# Its dependencies are all meet by the libutils.a which always added.
FFLAGS += -DFISHER
endif

DEBUGFLAGS ?= $(FFLAGS)
Debug: FFLAGS = $(DEBUGFLAGS)

include ./Makefile_main