[Feature] Flash Attention In-app Feature Option Request

[DKNTZMN]

May I request for an option to enable flash attention option in the UI.
Current model is spitting nonsense and requires flash attention to run.

[ThiloteE]

llama.cpp related PRs:

• ggml : add Flash Attention ggml-org/llama.cpp#5021
• CUDA: Faster FlashAttention kernel ggml-org/llama.cpp#6374

Flash attention can speed up inference with supported backends substantially. The following screenshot is from a test in one of the PRs that add support for flash attention to llama.cpp:

Not only can it speed up t/s, it also reduces the size of the compute buffer substantially with large contexts, as following screenshots will demonstrate:

I think having Flash attention available as preference in the settings for backends that support it will be great.