Files
candle/candle-flash-attn/src/ffi.rs
Laurent Mazare fa2b64d678 Proper flash-attn parameters. (#244)
* Proper flash-attn parameters.

* Set the flash attention parameters.

* Add more validations.

* Setup the o_ flash attn parameters.

* More flash-attn support.

* Set more flash attn parameters.
2023-07-26 10:13:40 +01:00

42 lines
837 B
Rust

use core::ffi::{c_int, c_void};
extern "C" {
pub(crate) fn run_mha(
q_ptr: *const c_void,
k_ptr: *const c_void,
v_ptr: *const c_void,
o_ptr: *const c_void,
softmax_lse_ptr: *const c_void,
q_batch_stride: u32,
k_batch_stride: u32,
v_batch_stride: u32,
o_batch_stride: u32,
q_row_stride: u32,
k_row_stride: u32,
v_row_stride: u32,
o_row_stride: u32,
q_head_stride: u32,
k_head_stride: u32,
v_head_stride: u32,
o_head_stride: u32,
b: u32,
h: u32,
h_k: u32,
d: u32,
d_rounded: u32,
softmax_scale: f32,
seqlen_q: u32,
seqlen_k: u32,
seqlen_q_rounded: u32,
seqlen_k_rounded: u32,
is_causal: c_int,
);
}