convert.py: default outfile name include expert count

Author: mofosyne

convert.py

@@ -1519,6 +1519,10 @@ def default_outfile(model_paths: list[Path], file_type: GGMLFileType, params: Pa
 
     parameters = model_parameter_count_rounded_notation(model_params_count)
 
+    expert_count = ""
+    if params.n_experts is not None:
+        expert_count = f"{params.n_experts}x"
+
     version = ""
     if metadata is not None and metadata.version is not None:
         version = f"-{metadata.version}"
@@ -1529,7 +1533,7 @@ def default_outfile(model_paths: list[Path], file_type: GGMLFileType, params: Pa
     elif params.path_model is not None:
         name = params.path_model.name
 
-    ret = model_paths[0].parent / f"{name}{version}-{parameters}-{quantization}.gguf"
+    ret = model_paths[0].parent / f"{name}{version}-{expert_count}{parameters}-{quantization}.gguf"
     if ret in model_paths:
         sys.stderr.write(
             f"Error: Default output path ({ret}) would overwrite the input. "