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#
# Copyright (c) 2015-2016, NVIDIA CORPORATION. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of NVIDIA CORPORATION nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
# OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
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 ?= $(CUDA_HOME)/bin/nvcc
NVCC_GENCODE ?= -gencode=arch=compute_35,code=sm_35 \
-gencode=arch=compute_50,code=sm_50 \
-gencode=arch=compute_52,code=sm_52 \
-gencode=arch=compute_60,code=sm_60 \
-gencode=arch=compute_61,code=sm_61 \
-gencode=arch=compute_61,code=compute_61
CXXFLAGS := -I$(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
.PHONY : lib clean 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
VER_MAJOR := 1
VER_MINOR := 2
VER_PATCH := 3
INCDIR := $(BUILDDIR)/include
LIBDIR := $(BUILDDIR)/lib
OBJDIR := $(BUILDDIR)/obj
INCTARGETS := $(patsubst %, $(INCDIR)/%, $(INCEXPORTS))
LIBSONAME := $(patsubst %,%.$(VER_MAJOR),$(LIBNAME))
LIBTARGET := $(patsubst %,%.$(VER_MAJOR).$(VER_MINOR).$(VER_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/$$/:/' >> $(@:%.o=%.d)
@rm -f $(@:%.o=%.d.tmp)
clean :
rm -rf $(BUILDDIR)
install : lib
mkdir -p $(PREFIX)/lib
mkdir -p $(PREFIX)/include
cp -P -v build/lib/* $(PREFIX)/lib/
cp -v build/include/* $(PREFIX)/include/
#### TESTS ####
TEST_ONLY ?= 0
# Tests depend on lib, except in TEST_ONLY mode.
ifeq ($(TEST_ONLY), 0)
TSTDEP = $(INCTARGETS) $(LIBDIR)/$(LIBTARGET)
endif
NCCL_LIB ?= $(LIBDIR)
NCCL_INC ?= $(INCDIR)
MPI_HOME ?= /usr
MPI_INC ?= $(MPI_HOME)/include
MPI_LIB ?= $(MPI_HOME)/lib
MPIFLAGS := -I$(MPI_INC) -L$(MPI_LIB) -lmpi
TESTS := all_gather_test all_reduce_test broadcast_test reduce_test reduce_scatter_test
MPITESTS := mpi_test
TSTINC := -I$(NCCL_INC) -Itest/include
TSTLIB := -L$(NCCL_LIB) $(LIBLINK) $(LDFLAGS)
TSTDIR := $(BUILDDIR)/test/single
MPITSTDIR := $(BUILDDIR)/test/mpi
TESTBINS := $(patsubst %, $(TSTDIR)/%, $(TESTS))
MPITESTBINS:= $(patsubst %, $(MPITSTDIR)/%, $(MPITESTS))
test : $(TESTBINS)
$(TSTDIR)/% : test/single/%.cu $(TSTDEP)
@printf "Building %-25s > %-24s\n" $< $@
mkdir -p $(TSTDIR)
$(NVCC) $(TSTINC) $(NVCUFLAGS) --compiler-options "$(CXXFLAGS)" -o $@ $< $(TSTLIB) -lcuda -lcurand -lnvToolsExt
@$(NVCC) -M $(TSTINC) $(NVCUFLAGS) --compiler-options "$(CXXFLAGS)" $< $(TSTLIB) -lcuda -lcurand -lnvToolsExt > $(@:%=%.d.tmp)
@sed "0,/^.*:/s//$(subst /,\/,$@):/" $(@:%=%.d.tmp) > $(@:%=%.d)
@sed -e 's/.*://' -e 's/\\$$//' < $(@:%=%.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)
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