add deepspeed cmd option (#307)

indextts/infer_v2.py

@@ -38,7 +38,7 @@ import torch.nn.functional as F
 class IndexTTS2:
     def __init__(
             self, cfg_path="checkpoints/config.yaml", model_dir="checkpoints", use_fp16=False, device=None,
-            use_cuda_kernel=None,
+            use_cuda_kernel=None,use_deepspeed=False
     ):
         """
         Args:
@@ -47,6 +47,7 @@ class IndexTTS2:
             use_fp16 (bool): whether to use fp16.
             device (str): device to use (e.g., 'cuda:0', 'cpu'). If None, it will be set automatically based on the availability of CUDA or MPS.
             use_cuda_kernel (None | bool): whether to use BigVGan custom fused activation CUDA kernel, only for CUDA device.
+            use_deepspeed (bool): whether to use deepspeed or not.
         """
         if device is not None:
             self.device = device
@@ -87,12 +88,12 @@ class IndexTTS2:
             self.gpt.eval()
         print(">> GPT weights restored from:", self.gpt_path)
 
-        use_deepspeed = True
         try:
             import deepspeed
         except (ImportError, OSError, CalledProcessError) as e:
-            use_deepspeed = False
+            if use_deepspeed:
                 print(f">> DeepSpeed加载失败，回退到标准推理: {e}")
+            use_deepspeed = False
 
         self.gpt.post_init_gpt2_config(use_deepspeed=use_deepspeed, kv_cache=True, half=self.use_fp16)
 

webui.py

@@ -25,6 +25,7 @@ parser.add_argument("--port", type=int, default=7860, help="Port to run the web
 parser.add_argument("--host", type=str, default="0.0.0.0", help="Host to run the web UI on")
 parser.add_argument("--model_dir", type=str, default="./checkpoints", help="Model checkpoints directory")
 parser.add_argument("--fp16", action="store_true", default=False, help="Use FP16 for inference if available")
+parser.add_argument("--use_deepspeed", action="store_true", default=False, help="Use Deepspeed to accelerate if available")
 parser.add_argument("--cuda_kernel", action="store_true", default=False, help="Use cuda kernel for inference if available")
 parser.add_argument("--gui_seg_tokens", type=int, default=120, help="GUI: Max tokens per generation segment")
 cmd_args = parser.parse_args()
@@ -51,13 +52,12 @@ from tools.i18n.i18n import I18nAuto
 
 i18n = I18nAuto(language="Auto")
 MODE = 'local'
-tts = IndexTTS2(
-    model_dir=cmd_args.model_dir, 
+tts = IndexTTS2(model_dir=cmd_args.model_dir,
                 cfg_path=os.path.join(cmd_args.model_dir, "config.yaml"),
                 use_fp16=cmd_args.fp16,
+                use_deepspeed=cmd_args.use_deepspeed,
                 use_cuda_kernel=cmd_args.cuda_kernel,
                 )
-
 # 支持的语言列表
 LANGUAGES = {
     "中文": "zh_CN",