Add with_output version AppendAttention

Author: Lmywl

custom_ops/gpu_ops/append_attention.cu

@@ -90,6 +90,48 @@ std::vector<paddle::Tensor> AppendAttention(
     const int speculate_max_draft_token_num, const bool causal,
     const bool speculate_decoder);
 
+void AppendAttentionWithOutput(
+    const paddle::Tensor &qkv, const paddle::Tensor &key_cache,
+    const paddle::Tensor &value_cache, const paddle::Tensor &seq_lens_encoder,
+    const paddle::Tensor &seq_lens_decoder,
+    const paddle::Tensor &seq_lens_this_time,
+    const paddle::Tensor &batch_id_per_token, const paddle::Tensor &cu_seqlens_q,
+    const paddle::Tensor &block_tables, const paddle::Tensor &encoder_batch_ids,
+    const paddle::Tensor &encoder_tile_ids_per_batch,
+    const paddle::Tensor &encoder_num_blocks,
+    const paddle::Tensor &kv_batch_ids,
+    const paddle::Tensor &kv_tile_ids_per_batch,
+    const paddle::Tensor &kv_num_blocks,
+    const paddle::Tensor &decoder_batch_ids,
+    const paddle::Tensor &decoder_tile_ids_per_batch,
+    const paddle::Tensor &decoder_num_blocks,
+    const paddle::Tensor &set_max_lengths, const paddle::Tensor &max_len_kv,
+    paddle::Tensor &res,
+    const paddle::optional<paddle::Tensor> &rotary_embs,
+    const paddle::optional<paddle::Tensor> &attn_mask,
+    const paddle::optional<paddle::Tensor> &qkv_bias,
+    const paddle::optional<paddle::Tensor> &qkv_out_scales,
+    const paddle::optional<paddle::Tensor> &cache_k_quant_scales,
+    const paddle::optional<paddle::Tensor> &cache_v_quant_scales,
+    const paddle::optional<paddle::Tensor> &cache_k_dequant_scales,
+    const paddle::optional<paddle::Tensor> &cache_v_dequant_scales,
+    const paddle::optional<paddle::Tensor> &cache_k_zp,
+    const paddle::optional<paddle::Tensor> &cache_v_zp,
+    const paddle::optional<paddle::Tensor> &out_linear_shifts,
+    const paddle::optional<paddle::Tensor> &out_linear_smooths,
+    const paddle::optional<paddle::Tensor> &kv_signal_data,
+    const paddle::optional<paddle::Tensor>& q_norm_weight,
+    const paddle::optional<paddle::Tensor>& k_norm_weight,
+    const float rms_norm_eps,
+    const std::string &compute_dtype, const std::string &cache_quant_type_str,
+    const bool use_neox_rotary_style, const bool rope_3d,
+    const int max_input_length, const float quant_max_bound,
+    const float quant_min_bound, const float out_linear_in_scale,
+    const int encoder_block_shape_q, const int decoder_block_shape_q,
+    const int max_partition_size, const int encoder_max_partition_size,
+    const int speculate_max_draft_token_num, const bool causal,
+    const bool speculate_decoder);
+
 std::vector<paddle::Tensor> GQARopeWriteCacheKernel(
     const paddle::Tensor &qkv, const paddle::Tensor &key_cache,
     const paddle::Tensor &value_cache, const paddle::Tensor &cu_seqlens_q,
@@ -828,6 +870,7 @@ PYBIND11_MODULE(fastdeploy_ops, m) {
    * append_attention
    */
   m.def("append_attention", &AppendAttention, "append attention function");
+  m.def("append_attention_with_output", &AppendAttentionWithOutput, "append attention with output function");
   /**
    * gqa_rope_write_cache.cu
    * gqa_rope_write_cache

custom_ops/gpu_ops/cpp_extensions.cc

@@ -24,6 +24,7 @@
 
 from fastdeploy.model_executor.layers.attention.ops import (
     append_attention,
+    append_attention_with_output,
     get_block_shape_and_split_kv_block,
     init_kv_signal_per_query,
     init_signal_layerwise,
@@ -85,6 +86,7 @@ def __init__(
         head_dim: int,
         encoder_block_shape_q: int = -1,
         decoder_block_shape_q: int = -1,
+        use_output: bool = True,
     ) -> None:
         """
         AppendAttentionBackend __init__
@@ -121,6 +123,7 @@ def __init__(
             fd_config.parallel_config.expert_parallel_rank = 0
 
         self.rank, self.device_id = init_rank_and_device_id(fd_config)
+        self.use_output = use_output
 
     def init_attention_metadata(self, forward_meta: ForwardMeta):
         """Initialize attntion metadata hence all layers in the forward pass can reuse it."""
@@ -228,57 +231,147 @@ def forward_mixed(
                 layer.layer_id + self.start_layer_index,
             )
 
-        res = append_attention(
-            qkv,
-            forward_meta.caches[2 * layer.layer_id],
-            forward_meta.caches[2 * layer.layer_id + 1],
-            forward_meta.seq_lens_encoder,
-            forward_meta.seq_lens_decoder,
-            forward_meta.seq_lens_this_time,
-            forward_meta.batch_id_per_token,
-            forward_meta.cu_seqlens_q,
-            metadata.block_tables,
-            metadata.encoder_batch_ids,
-            metadata.encoder_tile_ids_per_batch,
-            metadata.encoder_num_blocks,
-            metadata.kv_batch_ids,
-            metadata.kv_tile_ids_per_batch,
-            metadata.kv_num_blocks,
-            forward_meta.decoder_batch_ids,
-            forward_meta.decoder_tile_ids_per_batch,
-            forward_meta.decoder_num_blocks_cpu,
-            forward_meta.max_len_tensor_cpu,
-            metadata.max_len_kv,
-            metadata.rotary_embs,
-            metadata.attn_mask,
-            layer.qkv_bias,
-            layer.qkv_scale,
-            getattr(layer, "cache_k_scale", None),
-            getattr(layer, "cache_v_scale", None),
-            getattr(layer, "cache_k_out_scale", None),
-            getattr(layer, "cache_v_out_scale", None),
-            getattr(layer, "cache_k_zp", None),
-            getattr(layer, "cache_v_zp", None),
-            layer.linear_shift,
-            layer.linear_smooth,
-            metadata.kv_signal_data_list[layer.layer_id],
-            getattr(layer, "q_norm_weight", None),
-            getattr(layer, "k_norm_weight", None),
-            getattr(layer, "rms_norm_eps", 1e-6),
-            metadata._fuse_kernel_compute_dtype,
-            getattr(layer, "cache_quant_type_str", "none"),
-            layer.use_neox_rotary_style,
-            self.rope_3d,
-            self.max_seq_len,
-            getattr(layer, "quant_max_bound", 0.0),
-            getattr(layer, "quant_min_bound", 0.0),
-            getattr(layer, "out_scale", -1.0),
-            self.encoder_block_shape_q,
-            self.decoder_block_shape_q,
-            metadata.max_partition_size,
-            metadata.encoder_max_partition_size,
-            self.speculate_max_draft_token_num + 1,
-            self.causal,
-            self.speculative_method is not None,
-        )[0]
+        if self.use_output:
+            quant_max_bound = getattr(layer, "quant_max_bound", 0.0)
+            cache_quant_type = getattr(layer, "cache_quant_type_str", "none")
+            compute_type = metadata._fuse_kernel_compute_dtype
+            out_scale = getattr(layer, "out_scale", -1.0)
+            # 1. get output datatype
+            qkv_dtype = qkv.dtype
+            if qkv_dtype == paddle.float16:
+                D_type = paddle.float16
+            elif qkv_dtype == paddle.bfloat16:
+                D_type = paddle.bfloat16
+            elif qkv_dtype == paddle.int32:
+                if compute_type == "bf16":
+                    D_type = paddle.bfloat16
+                elif compute_type == "fp16":
+                    D_type = paddle.float16
+                else:
+                    raise NotImplementedError("Only supported attr of qkv_type in ['float16', 'bfloat16'].")
+            else:
+                raise NotImplementedError("Only supported attr of qkv_type in ['float16', 'bfloat16', 'int32'].")
+            # 2.Extract related parameters
+            token_nums = qkv.shape[0]
+            head_dims = self.head_dim if cache_quant_type != "cache_int4_zp" else self.head_dim * 2
+            q_num_heads = self.num_heads
+            # 3. generate output tensor of different dtypes
+            if out_scale > 0.0:
+                if abs(quant_max_bound - 127) < 0.000001:
+                    res = paddle.empty([token_nums, q_num_heads * head_dims], dtype="int8").to(qkv.place)
+                elif abs(quant_max_bound - 448) < 0.000001:
+                    res = paddle.empty([token_nums, q_num_heads * head_dims], dtype="float8_e4m3fn").to(qkv.place)
+                else:
+                    raise NotImplementedError("Only supported attr of quant_max_bound in ['127', '448'].")
+            else:
+                res = paddle.empty([token_nums, q_num_heads * head_dims], dtype=D_type).to(qkv.place)
+
+            append_attention_with_output(
+                qkv,
+                forward_meta.caches[2 * layer.layer_id],
+                forward_meta.caches[2 * layer.layer_id + 1],
+                forward_meta.seq_lens_encoder,
+                forward_meta.seq_lens_decoder,
+                forward_meta.seq_lens_this_time,
+                forward_meta.batch_id_per_token,
+                forward_meta.cu_seqlens_q,
+                metadata.block_tables,
+                metadata.encoder_batch_ids,
+                metadata.encoder_tile_ids_per_batch,
+                metadata.encoder_num_blocks,
+                metadata.kv_batch_ids,
+                metadata.kv_tile_ids_per_batch,
+                metadata.kv_num_blocks,
+                forward_meta.decoder_batch_ids,
+                forward_meta.decoder_tile_ids_per_batch,
+                forward_meta.decoder_num_blocks_cpu,
+                forward_meta.max_len_tensor_cpu,
+                metadata.max_len_kv,
+                res,
+                metadata.rotary_embs,
+                metadata.attn_mask,
+                layer.qkv_bias,
+                layer.qkv_scale,
+                getattr(layer, "cache_k_scale", None),
+                getattr(layer, "cache_v_scale", None),
+                getattr(layer, "cache_k_out_scale", None),
+                getattr(layer, "cache_v_out_scale", None),
+                getattr(layer, "cache_k_zp", None),
+                getattr(layer, "cache_v_zp", None),
+                layer.linear_shift,
+                layer.linear_smooth,
+                metadata.kv_signal_data_list[layer.layer_id],
+                getattr(layer, "q_norm_weight", None),
+                getattr(layer, "k_norm_weight", None),
+                getattr(layer, "rms_norm_eps", 1e-6),
+                metadata._fuse_kernel_compute_dtype,
+                getattr(layer, "cache_quant_type_str", "none"),
+                layer.use_neox_rotary_style,
+                self.rope_3d,
+                self.max_seq_len,
+                getattr(layer, "quant_max_bound", 0.0),
+                getattr(layer, "quant_min_bound", 0.0),
+                getattr(layer, "out_scale", -1.0),
+                self.encoder_block_shape_q,
+                self.decoder_block_shape_q,
+                metadata.max_partition_size,
+                metadata.encoder_max_partition_size,
+                self.speculate_max_draft_token_num + 1,
+                self.causal,
+                self.speculative_method is not None,
+            )
+        else:
+            res = append_attention(
+                qkv,
+                forward_meta.caches[2 * layer.layer_id],
+                forward_meta.caches[2 * layer.layer_id + 1],
+                forward_meta.seq_lens_encoder,
+                forward_meta.seq_lens_decoder,
+                forward_meta.seq_lens_this_time,
+                forward_meta.batch_id_per_token,
+                forward_meta.cu_seqlens_q,
+                metadata.block_tables,
+                metadata.encoder_batch_ids,
+                metadata.encoder_tile_ids_per_batch,
+                metadata.encoder_num_blocks,
+                metadata.kv_batch_ids,
+                metadata.kv_tile_ids_per_batch,
+                metadata.kv_num_blocks,
+                forward_meta.decoder_batch_ids,
+                forward_meta.decoder_tile_ids_per_batch,
+                forward_meta.decoder_num_blocks_cpu,
+                forward_meta.max_len_tensor_cpu,
+                metadata.max_len_kv,
+                metadata.rotary_embs,
+                metadata.attn_mask,
+                layer.qkv_bias,
+                layer.qkv_scale,
+                getattr(layer, "cache_k_scale", None),
+                getattr(layer, "cache_v_scale", None),
+                getattr(layer, "cache_k_out_scale", None),
+                getattr(layer, "cache_v_out_scale", None),
+                getattr(layer, "cache_k_zp", None),
+                getattr(layer, "cache_v_zp", None),
+                layer.linear_shift,
+                layer.linear_smooth,
+                metadata.kv_signal_data_list[layer.layer_id],
+                getattr(layer, "q_norm_weight", None),
+                getattr(layer, "k_norm_weight", None),
+                getattr(layer, "rms_norm_eps", 1e-6),
+                metadata._fuse_kernel_compute_dtype,
+                getattr(layer, "cache_quant_type_str", "none"),
+                layer.use_neox_rotary_style,
+                self.rope_3d,
+                self.max_seq_len,
+                getattr(layer, "quant_max_bound", 0.0),
+                getattr(layer, "quant_min_bound", 0.0),
+                getattr(layer, "out_scale", -1.0),
+                self.encoder_block_shape_q,
+                self.decoder_block_shape_q,
+                metadata.max_partition_size,
+                metadata.encoder_max_partition_size,
+                self.speculate_max_draft_token_num + 1,
+                self.causal,
+                self.speculative_method is not None,
+            )
         return res

fastdeploy/model_executor/layers/attention/append_attn_backend.py

@@ -377,7 +377,7 @@ def forward_mixed(
             self.speculate_max_draft_token_num + 1,
             self.causal,
             self.speculative_method is not None,
-        )[0]
+        )
 
         if metadata.max_len_tensor_cpu[1] > 0:
             merge_prefill_decode_output(

fastdeploy/model_executor/layers/attention/flash_attn_backend.py

@@ -14,7 +14,7 @@
 # limitations under the License.
 """
 
-from .append_attention import append_attention
+from .append_attention import append_attention, append_attention_with_output
 from .get_block_shape_and_split_kv_block import get_block_shape_and_split_kv_block
 from .gqa_rope_write_cache import gqa_rope_write_cache
 from .init_kv_signal_per_query import init_kv_signal_per_query
@@ -25,6 +25,7 @@
 __all__ = [
     "get_block_shape_and_split_kv_block",
     "append_attention",
+    "append_attention_with_output",
     "open_shm_and_get_meta_signal",
     "init_signal_layerwise",
     "gqa_rope_write_cache",