# Paths where MAGMA, CUDA, and OpenBLAS are installed
MAGMADIR     ?= /opt/magma
CUDADIR      ?= /opt/cuda
OPENBLASDIR  ?= /usr/local/openblas

CC            = gcc
FORT          = gfortran
LD            = gcc
CFLAGS        = -Wall
LDFLAGS       = -Wall

MAGMA_CFLAGS   := -DADD_ -I$(MAGMADIR)/include -I$(CUDADIR)/include
MAGMA_F90FLAGS := -I$(MAGMADIR)/include -Dmagma_devptr_t="integer(kind=8)"

MAGMA_LIBS   := -L$(MAGMADIR)/lib -L$(CUDADIR)/lib64 -L$(OPENBLASDIR)/lib \
                -llapack -lmagma -lcublas -lcudart -lopenblas

# Alternatively, using pkg-config (see README.txt):
#MAGMA_CFLAGS := $(shell pkg-config --cflags magma)
#MAGMA_LIBS   := $(shell pkg-config --libs   magma)


# ----------------------------------------
default:
    @echo "Available make targets are:"
    @echo "  make all       # compiles both example_v1, example_v2, and example_f"
    @echo "  make c         # compiles example_v1 and example_v2"
    @echo "  make fortran   # compiles example_f"
    @echo "  make clean     # deletes executables and object files"

all: c fortran

c: example_v1 example_v2

fortran: example_f

clean:
    -rm -f example_v1 example_v2 example_f *.o *.mod

.SUFFIXES:


# ----------------------------------------
# C example
%.o: %.c
    $(CC) $(CFLAGS) $(MAGMA_CFLAGS) -c -o $@ $<

example_v1: example_v1.o
    $(LD) $(LDFLAGS) -o $@ $^ $(MAGMA_LIBS)

example_v2: example_v2.o
    $(LD) $(LDFLAGS) -o $@ $^ $(MAGMA_LIBS)


# ----------------------------------------
# Fortran example
# this uses capital .F90 to preprocess to define magma_devptr_t
%.o: %.F90
    $(FORT) $(F90FLAGS) $(MAGMA_F90FLAGS) -c -o $@ $<

fortran.o: $(CUDADIR)/src/fortran.c
    $(CC) $(CFLAGS) $(MAGMA_CFLAGS) -DCUBLAS_GFORTRAN -c -o $@ $<

example_f: example_f.o fortran.o
    $(FORT) $(LDFLAGS) -o $@ $^ $(MAGMA_LIBS)