Makefile.ac.in

# Makefile.ac.in - Template for autoconf-generated Makefile
# Generated by configure from Makefile.ac.in
#
# swirl2d_ipopt - 2D Swirling Flow Optimizer
#
# Usage:
#   autoconf                    # Generate configure script
#   ./configure                 # Configure (requires PETSC_DIR, PETSC_ARCH)
#   make                        # Build
#   make install                # Install (optional)
#
# Or with options:
#   ./configure --with-petsc-dir=/path/to/petsc --with-petsc-arch=arch-linux-c-opt
#

# Autoconf-substituted variables
prefix = @prefix@
exec_prefix = @exec_prefix@
bindir = @bindir@
srcdir = @srcdir@

# Compilers
CC = @CC@
CXX = @CXX@
FC = @FC@
AR = @AR@
RANLIB = @RANLIB@
MKDIR_P = @MKDIR_P@
CURL = @CURL@
PYTHON = @PYTHON@

# Compiler flags
CFLAGS = @CFLAGS@
CXXFLAGS = @CXXFLAGS@
FFLAGS = @FFLAGS@
LDFLAGS = @LDFLAGS@

# PETSc
PETSC_DIR = @PETSC_DIR@
PETSC_ARCH = @PETSC_ARCH@
PETSC_CFLAGS = @PETSC_CFLAGS@
PETSC_LIBS = @PETSC_LIBS@
PETSC_LDFLAGS = @PETSC_LDFLAGS@

# Triangle (from PETSc)
TRIANGLE_INC = @TRIANGLE_INC@
TRIANGLE_LIB = @TRIANGLE_LIB@

# GSL
GSL_CFLAGS = @GSL_CFLAGS@
GSL_LIBS = @GSL_LIBS@

# Libraries directories
ALGLIB_DIR = @ALGLIB_DIR@
ALGLIB_VERSION = @ALGLIB_VERSION@
DOWNLOAD_ALGLIB = @DOWNLOAD_ALGLIB@
FITPACK_DIR = @FITPACK_DIR@
DOWNLOAD_FITPACK = @DOWNLOAD_FITPACK@
DONLP2_DIR = @DONLP2_DIR@

#------------------------------------------------------------------------------
# Derived paths and flags
#------------------------------------------------------------------------------

ALGLIB_SRC = $(ALGLIB_DIR)/src

# ALGLIB sources
ALGLIB_SRCS = $(ALGLIB_SRC)/ap.cpp $(ALGLIB_SRC)/alglibinternal.cpp \
              $(ALGLIB_SRC)/alglibmisc.cpp $(ALGLIB_SRC)/linalg.cpp \
              $(ALGLIB_SRC)/solvers.cpp $(ALGLIB_SRC)/optimization.cpp \
              $(ALGLIB_SRC)/specialfunctions.cpp $(ALGLIB_SRC)/integration.cpp \
              $(ALGLIB_SRC)/interpolation.cpp
ALGLIB_OBJS = $(ALGLIB_SRCS:.cpp=.o)
ALGLIB_KERNEL_OBJS = $(ALGLIB_SRC)/kernels_sse2.o $(ALGLIB_SRC)/kernels_avx2.o \
                     $(ALGLIB_SRC)/kernels_fma.o

# FITPACK sources
FITPACK_SRCS = curfit.f splev.f fpback.f fpbspl.f fpchec.f fpcurf.f \
               fpdisc.f fpgivs.f fpknot.f fprati.f fprota.f \
               concon.f fpcoco.f fpcosp.f fpadno.f fpdeno.f fpseno.f \
               fptrnp.f fptrpe.f curev.f fpfrno.f fpcons.f fpadpo.f \
               fpched.f fppocu.f fpinst.f
FITPACK_OBJS = $(addprefix $(FITPACK_DIR)/,$(FITPACK_SRCS:.f=.o))
FITPACK_LIB = $(FITPACK_DIR)/libfitpack.a

# DONLP2
DONLP2_LIB = $(DONLP2_DIR)/libdonlp2.a
DONLP2_INC = -I$(DONLP2_DIR)
DNCONF_WRAPPER = ../src/dnconf_wrapper.o

# Combined flags
ALL_CFLAGS = $(CFLAGS) $(PETSC_CFLAGS) $(TRIANGLE_INC) $(GSL_CFLAGS) $(DONLP2_INC) -I$(ALGLIB_SRC)
ALL_LDFLAGS = $(LDFLAGS) $(PETSC_LDFLAGS)
ALL_LIBS = $(PETSC_LIBS) $(TRIANGLE_LIB) $(GSL_LIBS) -L$(FITPACK_DIR) -lfitpack -L$(DONLP2_DIR) -ldonlp2

# Targets
TARGET = swirl2d_ipopt
TARGET_GEN = generate_rpsi_data
OBJECTS = swirl2d_ipopt.o
ALGLIB_WRAPPER = alglib_wrapper.o

#------------------------------------------------------------------------------
# Main targets
#------------------------------------------------------------------------------

.PHONY: all clean distclean install deps alglib fitpack donlp2

all: deps $(TARGET) $(TARGET_GEN)

deps: alglib fitpack donlp2

# Link order: objects first, then local libs, then PETSc (which pulls in all deps)
$(TARGET): $(OBJECTS) $(ALGLIB_OBJS) $(ALGLIB_KERNEL_OBJS) $(ALGLIB_WRAPPER) $(FITPACK_LIB) $(DONLP2_LIB) $(DNCONF_WRAPPER)
	$(CC) $(ALL_CFLAGS) -o $@ $(OBJECTS) \
		$(ALGLIB_OBJS) $(ALGLIB_KERNEL_OBJS) $(ALGLIB_WRAPPER) $(DNCONF_WRAPPER) \
		-L$(FITPACK_DIR) -lfitpack -L$(DONLP2_DIR) -ldonlp2 \
		$(TRIANGLE_LIB) $(GSL_LIBS) $(PETSC_LIBS) \
		$(ALL_LDFLAGS) -lstdc++ -lgfortran -lm

$(TARGET_GEN): generate_rpsi_data.c
	$(CC) -O2 $(GSL_CFLAGS) -o $@ $< $(GSL_LIBS) -lm

#------------------------------------------------------------------------------
# Object file rules
#------------------------------------------------------------------------------

%.o: %.c
	$(CC) $(ALL_CFLAGS) -c -o $@ $<

$(ALGLIB_SRC)/%.o: $(ALGLIB_SRC)/%.cpp
	$(CXX) $(CXXFLAGS) -I$(ALGLIB_SRC) -c -o $@ $<

$(ALGLIB_SRC)/kernels_sse2.o: $(ALGLIB_SRC)/kernels_sse2.cpp
	$(CXX) $(CXXFLAGS) -msse2 -I$(ALGLIB_SRC) -c -o $@ $<

$(ALGLIB_SRC)/kernels_avx2.o: $(ALGLIB_SRC)/kernels_avx2.cpp
	$(CXX) $(CXXFLAGS) -mavx2 -I$(ALGLIB_SRC) -c -o $@ $<

$(ALGLIB_SRC)/kernels_fma.o: $(ALGLIB_SRC)/kernels_fma.cpp
	$(CXX) $(CXXFLAGS) -mfma -mavx2 -I$(ALGLIB_SRC) -c -o $@ $<

alglib_wrapper.o: alglib_wrapper.cpp
	$(CXX) $(CXXFLAGS) -I$(ALGLIB_SRC) -c -o $@ $<

$(FITPACK_DIR)/%.o: $(FITPACK_DIR)/%.f
	$(FC) $(FFLAGS) -c -o $@ $<

#------------------------------------------------------------------------------
# ALGLIB download and build
#------------------------------------------------------------------------------

alglib: $(ALGLIB_SRC)/ap.cpp

$(ALGLIB_SRC)/ap.cpp:
ifeq ($(DOWNLOAD_ALGLIB),yes)
	@echo "Downloading ALGLIB $(ALGLIB_VERSION)..."
	$(MKDIR_P) $(ALGLIB_DIR)
	cd /tmp && \
	$(CURL) -LO "https://www.alglib.net/translator/re/alglib-$(ALGLIB_VERSION).cpp.gpl.tgz" && \
	tar xzf alglib-$(ALGLIB_VERSION).cpp.gpl.tgz && \
	cp -r alglib-cpp/src $(ALGLIB_DIR)/ && \
	cp alglib-cpp/gpl*.txt $(ALGLIB_DIR)/ && \
	rm -rf alglib-cpp alglib-$(ALGLIB_VERSION).cpp.gpl.tgz
	@echo "ALGLIB downloaded to $(ALGLIB_DIR)"
else
	@echo "ERROR: ALGLIB not found at $(ALGLIB_SRC)/ap.cpp"
	@echo "Run ./configure --enable-download-alglib or download manually"
	@exit 1
endif

#------------------------------------------------------------------------------
# FITPACK download and build
#------------------------------------------------------------------------------

fitpack: $(FITPACK_LIB)

$(FITPACK_LIB): $(FITPACK_OBJS)
	$(AR) rcs $@ $^
	@echo "Built: $@"

$(FITPACK_DIR)/%.f:
ifeq ($(DOWNLOAD_FITPACK),yes)
	$(MKDIR_P) $(FITPACK_DIR)
	@echo "Downloading FITPACK: $(@F)"
	cd $(FITPACK_DIR) && $(CURL) -sO "https://www.netlib.org/dierckx/$(@F)"
else
	@echo "ERROR: FITPACK source $@ not found"
	@echo "Run ./configure --enable-download-fitpack or download manually"
	@exit 1
endif

#------------------------------------------------------------------------------
# DONLP2 build
#------------------------------------------------------------------------------

donlp2: $(DONLP2_LIB)

$(DONLP2_LIB): $(DONLP2_DIR)/donlp2.c
	$(MAKE) -C $(DONLP2_DIR)

$(DNCONF_WRAPPER): ../src/dnconf_wrapper.c
	$(CC) $(CFLAGS) $(DONLP2_INC) -c -o $@ $<

#------------------------------------------------------------------------------
# Run targets
#------------------------------------------------------------------------------

.PHONY: run run4 gendata

run: $(TARGET) $(TARGET_GEN)
	./$(TARGET_GEN)
	./$(TARGET)

run4: $(TARGET) $(TARGET_GEN)
	./$(TARGET_GEN)
	mpirun -np 4 ./$(TARGET)

gendata: $(TARGET_GEN)
	./$(TARGET_GEN)

#------------------------------------------------------------------------------
# Benchmark targets (requires Python)
#------------------------------------------------------------------------------

.PHONY: benchmark benchmark_full python-deps

benchmark: $(TARGET) $(TARGET_GEN)
	./$(TARGET_GEN)
	$(PYTHON) benchmark_all.py --quick -o benchmark_quick.csv

benchmark_full: $(TARGET) $(TARGET_GEN)
	./$(TARGET_GEN)
	$(PYTHON) benchmark_all.py --nparam-max 10 -o benchmark_full.csv

python-deps:
	$(PYTHON) -m pip install numpy scipy matplotlib

#------------------------------------------------------------------------------
# Installation
#------------------------------------------------------------------------------

install: $(TARGET) $(TARGET_GEN)
	$(MKDIR_P) $(DESTDIR)$(bindir)
	install -m 755 $(TARGET) $(DESTDIR)$(bindir)/
	install -m 755 $(TARGET_GEN) $(DESTDIR)$(bindir)/

#------------------------------------------------------------------------------
# Cleanup
#------------------------------------------------------------------------------

clean:
	rm -f $(OBJECTS) $(TARGET) $(TARGET_GEN)
	rm -f $(ALGLIB_WRAPPER) $(ALGLIB_OBJS) $(ALGLIB_KERNEL_OBJS)
	rm -f $(FITPACK_OBJS)
	rm -f $(DNCONF_WRAPPER)
	$(MAKE) -C $(DONLP2_DIR) clean 2>/dev/null || true

distclean: clean
	rm -f Makefile config.log config.status
	rm -rf $(ALGLIB_DIR) $(FITPACK_DIR)
	rm -f *.dat gambit.jou params.dat *.node *.ele *.poly

#------------------------------------------------------------------------------
# Help
#------------------------------------------------------------------------------

.PHONY: help

help:
	@echo "================================================================================"
	@echo "swirl2d_ipopt - Autoconf Build System"
	@echo "================================================================================"
	@echo ""
	@echo "Configuration:"
	@echo "  autoconf                                  Generate configure script"
	@echo "  ./configure                              Configure (needs PETSC_DIR/PETSC_ARCH)"
	@echo "  ./configure --help                       Show all options"
	@echo ""
	@echo "Build targets:"
	@echo "  make                                     Build everything"
	@echo "  make deps                                Download/build dependencies"
	@echo "  make clean                               Remove build files"
	@echo "  make distclean                           Remove all generated files"
	@echo "  make install                             Install to prefix"
	@echo ""
	@echo "Run targets:"
	@echo "  make run                                 Run sequential"
	@echo "  make run4                                Run with 4 MPI processes"
	@echo "  make benchmark                           Run quick benchmark"
	@echo ""
	@echo "Current configuration:"
	@echo "  PETSC_DIR:  $(PETSC_DIR)"
	@echo "  PETSC_ARCH: $(PETSC_ARCH)"
	@echo "  CC:         $(CC)"
	@echo "  CXX:        $(CXX)"
	@echo "  FC:         $(FC)"
	@echo "================================================================================"