add an option to control GQA on CPU

src/python/py/models/builder.py

@@ -167,7 +167,8 @@ def __init__(self, config, io_dtype, onnx_dtype, ep, cache_dir, extra_options):
             "use_rotemb_in_attn": False,                     # Use rotary embeddings within attention op (instead of a separate RotaryEmbedding op)
             "use_packed_matmul": False,                      # Use packed MatMul (instead of 3 separate MatMuls for Q/K/V)
         }
-        if (self.ep in {"cuda", "dml"} and self.io_dtype == TensorProto.FLOAT16) or (self.ep == "cpu" and self.io_dtype == TensorProto.FLOAT):
+        enable_GQA_on_CPU = True if "enable_GQA_on_CPU" in extra_options and extra_options["enable_GQA_on_CPU"] == "1" else False
+        if (self.ep in {"cuda", "dml"} and self.io_dtype == TensorProto.FLOAT16) or (enable_GQA_on_CPU and self.ep == "cpu" and self.io_dtype == TensorProto.FLOAT):
             # Change model settings for GroupQueryAttention
             self.attention_attrs["op_type"] = "GroupQueryAttention"
             print("GroupQueryAttention (GQA) is used in this model. GQA is currently supported only for INT4 and FP16 on the CUDA and DML execution providers.")
@@ -176,7 +177,7 @@ def __init__(self, config, io_dtype, onnx_dtype, ep, cache_dir, extra_options):
             self.attention_attrs["use_packed_matmul"] = self.ep != "dml" and self.num_attn_heads == self.num_kv_heads
 
             # GQA + Rot.Emb. does not require `position ids` as input
-            if self.ep == "cuda" or self.ep == "cpu":
+            if self.ep in {"cuda", "cpu"}:
                 self.attention_attrs["use_rotemb_in_attn"] = True
                 self.input_names.remove("position_ids")
 
@@ -1979,6 +1980,7 @@ def get_args():
                 enable_cuda_graph = 1 : The model can use CUDA graph capture for CUDA execution provider. If enabled, all nodes being placed on the CUDA EP
                     is the prerequisite for the CUDA graph to be used correctly. It is not guaranteed that cuda graph be enabled as it depends on the model
                     and the graph structure.
+                enable_GQA_on_CPU = Enalbe G(Group)Query(Q)Attention(A) on CPU.
             """),
     )