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#
# Copyright (c) 2015-2016, NVIDIA CORPORATION. All rights reserved.
#
# See LICENCE.txt for license information
#
CUDA_HOME ?= /usr/local/cuda
PREFIX ?= /usr/local
VERBOSE ?= 0
DEBUG ?= 0
BUILDDIR ?= build
CUDA_LIB ?= $(CUDA_HOME)/lib64
CUDA_INC ?= $(CUDA_HOME)/include
NVCC ?= $(CUDA_HOME)/bin/nvcc
NVCC_GENCODE ?= -gencode=arch=compute_35,code=sm_35 \
-gencode=arch=compute_50,code=sm_50 \
-gencode=arch=compute_52,code=sm_52 \
-gencode=arch=compute_52,code=compute_52
CXXFLAGS := -I$(CUDA_INC) -fPIC -fvisibility=hidden
NVCUFLAGS := -ccbin $(CXX) $(NVCC_GENCODE) -lineinfo -std=c++11 -maxrregcount 96
# Use addprefix so that we can specify more than one path
LDFLAGS := $(addprefix -L,${CUDA_LIB}) -lcudart
ifeq ($(DEBUG), 0)
NVCUFLAGS += -O3
CXXFLAGS += -O3
else
NVCUFLAGS += -O0 -G
CXXFLAGS += -O0 -g -ggdb3
endif
ifneq ($(VERBOSE), 0)
NVCUFLAGS += -Xptxas -v -Xcompiler -Wall,-Wextra
CXXFLAGS += -Wall -Wextra
else
.SILENT:
endif
NCCL_MAJOR := 1
NCCL_MINOR := 2
NCCL_PATCH := 3
CXXFLAGS += -DNCCL_MAJOR=$(NCCL_MAJOR) -DNCCL_MINOR=$(NCCL_MINOR) -DNCCL_PATCH=$(NCCL_PATCH)
CUDA_VERSION ?= $(shell ls $(CUDA_LIB)/libcudart.so.* | head -1 | rev | cut -d "." -f -2 | rev)
CUDA_MAJOR = $(shell echo $(CUDA_VERSION) | cut -d "." -f 1)
CUDA_MINOR = $(shell echo $(CUDA_VERSION) | cut -d "." -f 2)
CXXFLAGS += -DCUDA_MAJOR=$(CUDA_MAJOR) -DCUDA_MINOR=$(CUDA_MINOR)
.PHONY : lib clean debclean test mpitest install
.DEFAULT : lib
INCEXPORTS := nccl.h
LIBSRCFILES := libwrap.cu core.cu all_gather.cu all_reduce.cu broadcast.cu reduce.cu reduce_scatter.cu
LIBNAME := libnccl.so
INCDIR := $(BUILDDIR)/include
LIBDIR := $(BUILDDIR)/lib
OBJDIR := $(BUILDDIR)/obj
INCTARGETS := $(patsubst %, $(INCDIR)/%, $(INCEXPORTS))
LIBSONAME := $(patsubst %,%.$(NCCL_MAJOR),$(LIBNAME))
LIBTARGET := $(patsubst %,%.$(NCCL_MAJOR).$(NCCL_MINOR).$(NCCL_PATCH),$(LIBNAME))
LIBLINK := $(patsubst lib%.so, -l%, $(LIBNAME))
LIBOBJ := $(patsubst %.cu, $(OBJDIR)/%.o, $(filter %.cu, $(LIBSRCFILES)))
DEPFILES := $(patsubst %.o, %.d, $(LIBOBJ)) $(patsubst %, %.d, $(TESTBINS)) $(patsubst %, %.d, $(MPITESTBINS))
lib : $(INCTARGETS) $(LIBDIR)/$(LIBTARGET)
-include $(DEPFILES)
$(LIBDIR)/$(LIBTARGET) : $(LIBOBJ)
@printf "Linking %-25s\n" $@
mkdir -p $(LIBDIR)
$(CXX) $(CXXFLAGS) -shared -Wl,--no-as-needed -Wl,-soname,$(LIBSONAME) -o $@ $(LDFLAGS) $(LIBOBJ)
ln -sf $(LIBSONAME) $(LIBDIR)/$(LIBNAME)
ln -sf $(LIBTARGET) $(LIBDIR)/$(LIBSONAME)
$(INCDIR)/%.h : src/%.h
@printf "Grabbing %-25s > %-25s\n" $< $@
mkdir -p $(INCDIR)
cp -f $< $@
$(OBJDIR)/%.o : src/%.cu
@printf "Compiling %-25s > %-25s\n" $< $@
mkdir -p $(OBJDIR)
$(NVCC) -c $(NVCUFLAGS) --compiler-options "$(CXXFLAGS)" $< -o $@
@$(NVCC) -M $(NVCUFLAGS) --compiler-options "$(CXXFLAGS)" $< > $(@:%.o=%.d.tmp)
@sed "0,/^.*:/s//$(subst /,\/,$@):/" $(@:%.o=%.d.tmp) > $(@:%.o=%.d)
@sed -e 's/.*://' -e 's/\\$$//' < $(@:%.o=%.d.tmp) | fmt -1 | \
sed -e 's/^ *//' -e 's/$$/:/' >> $(@:%.o=%.d)
@rm -f $(@:%.o=%.d.tmp)
clean :
rm -rf $(BUILDDIR)
install : lib
mkdir -p $(PREFIX)/lib
mkdir -p $(PREFIX)/include
cp -P -v $(BUILDDIR)/lib/* $(PREFIX)/lib/
cp -v $(BUILDDIR)/include/* $(PREFIX)/include/
#### TESTS ####
TEST_ONLY ?= 0
# Tests depend on lib, except in TEST_ONLY mode.
ifeq ($(TEST_ONLY), 0)
TSTDEP = $(INCTARGETS) $(LIBDIR)/$(LIBTARGET)
endif
NCCL_LIB ?= $(LIBDIR)
NCCL_INC ?= $(INCDIR)
MPI_HOME ?= /usr
MPI_INC ?= $(MPI_HOME)/include
MPI_LIB ?= $(MPI_HOME)/lib
MPIFLAGS := -I$(MPI_INC) -L$(MPI_LIB) -lmpi
TESTS := all_gather_test all_reduce_test broadcast_test reduce_test reduce_scatter_test
MPITESTS := mpi_test
TSTINC := -I$(NCCL_INC) -Itest/include
TSTLIB := -L$(NCCL_LIB) $(LIBLINK) $(LDFLAGS)
TSTDIR := $(BUILDDIR)/test/single
MPITSTDIR := $(BUILDDIR)/test/mpi
TESTBINS := $(patsubst %, $(TSTDIR)/%, $(TESTS))
MPITESTBINS:= $(patsubst %, $(MPITSTDIR)/%, $(MPITESTS))
test : $(TESTBINS)
$(TSTDIR)/% : test/single/%.cu $(TSTDEP)
@printf "Building %-25s > %-24s\n" $< $@
mkdir -p $(TSTDIR)
$(NVCC) $(TSTINC) $(NVCUFLAGS) --compiler-options "$(CXXFLAGS)" -o $@ $< $(TSTLIB) -lcuda -lcurand -lnvToolsExt
@$(NVCC) -M $(TSTINC) $(NVCUFLAGS) --compiler-options "$(CXXFLAGS)" $< $(TSTLIB) -lcuda -lcurand -lnvToolsExt > $(@:%=%.d.tmp)
@sed "0,/^.*:/s//$(subst /,\/,$@):/" $(@:%=%.d.tmp) > $(@:%=%.d)
@sed -e 's/.*://' -e 's/\\$$//' < $(@:%=%.d.tmp) | fmt -1 | \
sed -e 's/^ *//' -e 's/$$/:/' >> $(@:%=%.d)
@rm -f $(@:%=%.d.tmp)
mpitest : $(MPITESTBINS)
$(MPITSTDIR)/% : test/mpi/%.cu $(TSTDEP)
@printf "Building %-25s > %-24s\n" $< $@
mkdir -p $(MPITSTDIR)
$(NVCC) $(MPIFLAGS) $(TSTINC) $(NVCUFLAGS) --compiler-options "$(CXXFLAGS)" -o $@ $< $(TSTLIB) -lcurand
@$(NVCC) $(MPIFLAGS) -M $(TSTINC) $(NVCUFLAGS) --compiler-options "$(CXXFLAGS)" $< $(TSTLIB) -lcurand > $(@:%=%.d.tmp)
@sed "0,/^.*:/s//$(subst /,\/,$@):/" $(@:%=%.d.tmp) > $(@:%=%.d)
@sed -e 's/.*://' -e 's/\\$$//' < $(@:%=%.d.tmp) | fmt -1 | \
sed -e 's/^ *//' -e 's/$$/:/' >> $(@:%=%.d)
@rm -f $(@:%=%.d.tmp)
#### PACKAGING ####
DEBIANDIR := $(BUILDDIR)/debian
DEBGEN_IN := $(shell (cd debian ; ls *.in))
DEBGEN := $(DEBGEN_IN:.in=)
DEBFILES := compat copyright libnccl-dev.install libnccl-dev.manpages nccl.7 rules $(DEBGEN)
DEBTARGETS := $(patsubst %, $(DEBIANDIR)/%, $(DEBFILES))
DEB_REVISION ?= 1
DEB_TIMESTAMP := $(shell date -R)
DEB_ARCH ?= amd64
debian : $(DEBTARGETS)
deb : lib debian
@printf "Building Debian package\n"
(cd $(BUILDDIR); debuild -eLD_LIBRARY_PATH -uc -us -d -b)
mkdir -p $(BUILDDIR)/deb/
mv $(BUILDDIR)/../libnccl*.deb $(BUILDDIR)/deb/
debclean :
rm -Rf $(DEBIANDIR)
$(DEBIANDIR)/% : debian/%.in
@printf "Generating %-25s > %-24s\n" $< $@
sed -e "s/\$${nccl:Major}/$(NCCL_MAJOR)/g" \
-e "s/\$${nccl:Minor}/$(NCCL_MINOR)/g" \
-e "s/\$${nccl:Patch}/$(NCCL_PATCH)/g" \
-e "s/\$${cuda:Major}/$(CUDA_MAJOR)/g" \
-e "s/\$${cuda:Minor}/$(CUDA_MINOR)/g" \
-e "s/\$${deb:Revision}/$(DEB_REVISION)/g" \
-e "s/\$${deb:Timestamp}/$(DEB_TIMESTAMP)/g" \
-e "s/\$${deb:Arch}/$(DEB_ARCH)/g" \
$< > $@
$(DEBIANDIR)/% : debian/%
@printf "Grabbing %-25s > %-25s\n" $< $@
mkdir -p $(DEBIANDIR)
cp -f $< $@
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