flash_att_commit := 3a9bfd076f98746c73362328958dbc68d145fbec

flash-attention:
    # Clone flash attention
	pip install -U packaging ninja  --no-cache-dir
	git clone https://github.com/HazyResearch/flash-attention.git

build-flash-attention: flash-attention
	cd flash-attention && git fetch && git checkout $(flash_att_commit)
	cd flash-attention && python setup.py build
	cd flash-attention/csrc/rotary && python setup.py build
	cd flash-attention/csrc/layer_norm && python setup.py build

install-flash-attention: build-flash-attention
	pip uninstall flash_attn rotary_emb dropout_layer_norm -y || true
	cd flash-attention && python setup.py install && cd csrc/layer_norm && python setup.py install && cd ../rotary && python setup.py install
