pub fn mla_paged_decode_fp8(
gpu: &dyn GpuBackend,
kernel: KernelHandle,
q: DevicePtr,
k_cache: DevicePtr,
v_cache: DevicePtr,
o: DevicePtr,
block_tables: DevicePtr,
seq_lens: DevicePtr,
max_blocks_per_seq: u32,
num_q_heads: u32,
num_kv_heads: u32,
q_head_dim: u32,
kv_cache_dim: u32,
block_size: u32,
inv_sqrt_d: f32,
k_scale: f32,
v_scale: f32,
cache_stride: u64,
num_seqs: u32,
sliding_window: u32,
sinks: DevicePtr,
comp_pool: DevicePtr,
comp_block_count: u32,
stream: u64,
) -> Result<()>Expand description
MLA Paged Decode — FP8 variant for DeepSeek-V4-Flash with FP8 KV cache.
Kernel: mla_paged_decode_fp8(Q, K_cache, V_cache, O, block_tables, seq_lens, max_blocks_per_seq, num_q_heads, num_kv_heads, q_head_dim, kv_cache_dim, block_size, inv_sqrt_d, k_scale, v_scale, cache_stride)
Grid: (num_q_heads, num_seqs, 1) Block: (256, 1, 1)
V4-Flash uses compressed KV cache (576 dims: 512 latent + 64 rope) and FP8 quantization with per-layer scales.