update triton mla

setup.py

@@ -488,10 +488,10 @@ def get_version_add(sha: Optional[str] = None) -> str:
             if sha is None:
                 sha = get_sha(vllm_root)
             if (major, minor) == ('2', '4'):
-                version = 'das.opt1.cust1.' + sha[:7]
+                version = 'das.opt1.' + sha[:7]
     else:
         if (major, minor) == ('2', '4'):
-            version = 'das.opt1.cust1'
+            version = 'das.opt1'
 
 
     # dtk version

vllm/attention/backends/triton_mla.py

 # SPDX-License-Identifier: Apache-2.0
 
+import os
+import functools
+import json
 from collections import defaultdict
 from contextlib import contextmanager
 from dataclasses import dataclass
@@ -16,6 +19,8 @@ except ImportError:
     FLASHINFER_WORKSPACE_BUFFER_SIZE = 0
 
 import torch
+from vllm.logger import init_logger
+logger = init_logger(__name__)
 
 from vllm import _custom_ops as ops
 from vllm.attention.backends.abstract import (AttentionBackend,
@@ -34,6 +39,54 @@ if TYPE_CHECKING:
                                           ModelInputForGPUWithSamplingMetadata)
         
                          
+def get_mla_config_file_name(QH: int, KVH: int, QKD: int, VD: int, cache_dtype: Optional[str]) -> str:
+    if cache_dtype == "default":
+        return f"QH={QH}_KVH={KVH}_QKD={QKD}_VD={VD}_default.json"
+    
+    device_name = torch.cuda.get_device_name().replace(" ", "_")
+    if "K100_AI" in device_name:
+        return f"QH={QH}_KVH={KVH}_QKD={QKD}_VD={VD}_{cache_dtype}_K100AI.json"
+    elif "BW" in device_name:
+        return f"QH={QH}_KVH={KVH}_QKD={QKD}_VD={VD}_{cache_dtype}_BW.json"
+    else:
+        raise ValueError(f"Unsurpport device name: {device_name}")
+
+
+@functools.lru_cache
+def get_attention_mla_configs(QH: int, KVH: int, QKD: int, VD: int, cache_dtype: Optional[str]) -> Optional[Dict[Any, Any]]:
+
+    # First look up if an optimized configuration is available in the configs
+    # directory
+    json_file_name = get_mla_config_file_name(QH, KVH, QKD, VD, cache_dtype)
+
+    config_file_path = os.path.join(
+        os.path.dirname(os.path.realpath(__file__)), "configs", json_file_name
+    )
+    if os.path.exists(config_file_path):
+        with open(config_file_path) as f:
+            logger.info("Using decode attention configuration from %s for attention layer.", config_file_path)
+            # If a configuration has been found, return it
+            return json.load(f)
+    else:
+        logger.warning("Can not find best decode attention configuration %s for attention layer, it may not have the best performance to use default json. Please tune one. ", config_file_path)
+        
+        json_file_name = get_mla_config_file_name(16, 1, 576, 512, "default")
+        config_file_path = os.path.join(
+            os.path.dirname(os.path.realpath(__file__)), "configs", json_file_name
+        )
+        if os.path.exists(config_file_path):
+            with open(config_file_path) as f:
+                logger.warning("Using default decode attention configuration from %s for attention layer. It may not have the best performance to use default json. ", config_file_path)
+                # If a configuration has been found, return it
+                return json.load(f)
+        else:
+            raise ValueError("Please surpport default config can match 16 1 576 512")
+
+    # If no optimized configuration is available, we will use the default
+    # configuration
+    return None
+
+
 class TritonMLABackend(AttentionBackend):
 
     @staticmethod
@@ -736,11 +789,13 @@ class TritonMLAImpl(MLACommonImpl[TritonMLAMetadata]):
         kv_c_cache = kv_c_and_k_pe_cache[..., :self.kv_lora_rank]
         PAGE_SIZE = kv_c_and_k_pe_cache.size(1)
         
+        # config = get_attention_mla_configs(self.num_heads, 1, self.kv_lora_rank + self.qk_rope_head_dim, self.kv_lora_rank, "fp16")
+
         # Run MQA
         decode_attention_fwd(q, kv_c_and_k_pe_cache, kv_c_cache, o,
                              decode_meta.block_tables,
                              decode_meta.seq_lens_tensor, attn_logits,
-                             attn_metadata.num_kv_splits, self.scale,
+                             attn_metadata.num_kv_splits, self.scale, # config, 
                              PAGE_SIZE)
 
         return self._v_up_proj_and_o_proj(o)