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Dynamically detect CUDA arch #123

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Dynamically detect CUDA arch #123

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9 changes: 8 additions & 1 deletion llm/Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -55,8 +55,15 @@ $(info Detected CUDA_PATH: $(CUDA_HOME))
else
CUDA_HOME = /usr/local/cuda
CXX = $(CUDA_HOME)/bin/nvcc
GPU_ARCH := $(shell nvidia-smi --query-gpu=compute_cap --format=csv,noheader,nounits 2>/dev/null | head -n 1 | sed 's/\.//')

ifeq ($(GPU_ARCH),)
# Please modify 'arch=compute_87,code=sm_87' according to your GPU architecture/compute capability (https://developer.nvidia.com/cuda-gpus)
CXXFLAGS = -std=c++17 -Xptxas -O3 -gencode arch=compute_87,code=sm_87 --forward-unknown-to-host-compiler -Xcompiler "-pthread" -DQM_CUDA -DENABLE_BF16 -U__CUDA_NO_HALF_OPERATORS__ -U__CUDA_NO_HALF_CONVERSIONS__ -U__CUDA_NO_BFLOAT16_OPERATORS__ -U__CUDA_NO_BFLOAT16_CONVERSIONS__ -U__CUDA_NO_BFLOAT162_OPERATORS__ -U__CUDA_NO_BFLOAT162_CONVERSIONS__ --expt-relaxed-constexpr --expt-extended-lambda --use_fast_math --threads=8
GPU_ARCH := 87
$(warning Unable to detect GPU compute capability. Using default compute capability: compute_$(GPU_ARCH), sm_$(GPU_ARCH))
endif

CXXFLAGS = -std=c++17 -Xptxas -O3 -gencode arch=compute_$(GPU_ARCH),code=sm_$(GPU_ARCH) --forward-unknown-to-host-compiler -Xcompiler "-pthread" -DQM_CUDA -DENABLE_BF16 -U__CUDA_NO_HALF_OPERATORS__ -U__CUDA_NO_HALF_CONVERSIONS__ -U__CUDA_NO_BFLOAT16_OPERATORS__ -U__CUDA_NO_BFLOAT16_CONVERSIONS__ -U__CUDA_NO_BFLOAT162_OPERATORS__ -U__CUDA_NO_BFLOAT162_CONVERSIONS__ --expt-relaxed-constexpr --expt-extended-lambda --use_fast_math --threads=8
endif
# LIB_SRC_CUDA_CC = $(wildcard $(LIB_DIR)/cuda/*.cc) $(wildcard $(LIB_DIR)/cuda/attention/*.cc)
# LIB_SRC_CUDA_CU = $(wildcard $(LIB_DIR)/cuda/*.cu) $(wildcard $(LIB_DIR)/cuda/attention/*.cu) $(wildcard src/*.cu) $(wildcard src/nn_modules/cuda/*.cu) $(wildcard src/ops/cuda/*.cu)
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