# ##################################################################################################
#  Copyright (c) 2011-2023, NVIDIA CORPORATION.  All rights reserved.
#
#  Redistribution and use in source and binary forms, with or without modification, are not permit-
#  ted.
#
#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 NVIDIA CORPORATION 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 PROFIT;
#  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.
#
# ##################################################################################################

# #################################################################################################
# Compilers and build options.
# #################################################################################################

# The CUDA toolkit.
CUDA  ?= /usr/local/cuda
# The path to cudnn.
CUDNN ?= /usr/local/cudnn

IS_CUDA11 ?= 1

# The C++ compiler.
CXX ?= g++
# The CUDA compiler.
NVCC ?= $(CUDA)/bin/nvcc

# Flags to compile C++ files.
CXX_FLAGS = $(CXXFLAGS) -O3 -std=c++14 -g -DSAMPLES
# Flags to compile CUDA files.
#NVCC_FLAGS = $(CUDAFLAGS) -O3 -std=c++14 -g -lineinfo -ccbin $(CXX) -Xptxas=-v -use_fast_math
NVCC_FLAGS = $(CUDAFLAGS) -O3 -std=c++14 -g -lineinfo -ccbin $(CXX)  -use_fast_math

# The different preprocessor definitions.
PREPROCESSOR_FLAGS = -DMYGEN

# Do we want to enable the ordering for the softmax-summation to produce bit exact results.
PREPROCESSOR_FLAGS += -DUSE_SAME_SUM_ORDER_IN_SOFTMAX_AS_REF_CODE

# Do we want to enable the fast trick to skip F2I and I2F.
PREPROCESSOR_FLAGS += -DUSE_I2F_EMULATION_TRICK
PREPROCESSOR_FLAGS += -DUSE_F2I_EMULATION_TRICK

# Output the P matrix and/or S = softmax(P) for debugging.
# PREPROCESSOR_FLAGS += -DSTORE_P
# PREPROCESSOR_FLAGS += -DSTORE_S

# Append the preprocessor flags to the compilation flags.
CXX_FLAGS  += $(PREPROCESSOR_FLAGS)
NVCC_FLAGS += $(PREPROCESSOR_FLAGS)

# The include directories.
INCLUDE_DIRS += -I../src

GENCODE_SM75 = -gencode=arch=compute_75,code=\"sm_75\"
GENCODE_SM80 = -gencode=arch=compute_80,code=\"sm_80\"

# #################################################################################################
# The object files.
# #################################################################################################
OBJECTS  = obj/fmha_fprop_v2_fp16_128_64_kernel.sm80.cu.o
OBJECTS += obj/fmha_fprop_v2_fp16_256_64_kernel.sm80.cu.o
OBJECTS += obj/fmha_fprop_v2_fp16_384_64_kernel.sm80.cu.o
OBJECTS += obj/fmha_fprop_v2_fp16_512_64_kernel.sm80.cu.o

OBJECTS += obj/fmha_dgrad_v2_fp16_128_64_kernel.sm80.cu.o
OBJECTS += obj/fmha_dgrad_v2_fp16_256_64_kernel.sm80.cu.o
OBJECTS += obj/fmha_dgrad_v2_fp16_384_64_kernel.sm80.cu.o
OBJECTS += obj/fmha_dgrad_v2_fp16_512_64_kernel.sm80.cu.o

GENCODES = $(GENCODE_SM75) $(GENCODE_SM80)

# #################################################################################################
# R U L E S
# #################################################################################################

.PHONY: all
all:
	$(MAKE) dirs
	$(MAKE) $(OBJECTS)

dirs:
	if [ ! -d obj ]; then mkdir -p obj; fi

clean:
	rm -rf obj

###################################################################################################

obj/%.sm75.cu.o: ./%.sm75.cu ./*.h ../src/*.h ../src/fmha/*.h
	$(NVCC) $(NVCC_FLAGS) $(GENCODE_SM75) $(INCLUDE_DIRS) -c -o $@ $<
obj/%.sm80.cu.o: ./%.sm80.cu ./*.h ../src/*.h ../src/fmha/*.h
	$(NVCC) $(NVCC_FLAGS) $(GENCODE_SM80) $(INCLUDE_DIRS) -c -o $@ $<
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