Fixed GPU detection on CPU only environment (#4711)

### What problem does this PR solve?

Fixed GPU detection on CPU only environment. Close #4692

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

deepdoc/vision/ocr.py

@@ -27,6 +27,7 @@ from . import operators
 import math
 import numpy as np
 import cv2
+import torch
 import onnxruntime as ort
 
 from .postprocess import build_post_process
@@ -80,7 +81,7 @@ def load_model(model_dir, nm):
     # https://github.com/microsoft/onnxruntime/issues/9509#issuecomment-951546580
     # Shrink GPU memory after execution
     run_options = ort.RunOptions()
-    if ort.get_device() == "GPU":
+    if torch.cuda.is_available():
         cuda_provider_options = {
             "device_id": 0, # Use specific GPU
             "gpu_mem_limit": 512 * 1024 * 1024, # Limit gpu memory

deepdoc/vision/recognizer.py

@@ -21,7 +21,7 @@ import numpy as np
 import cv2
 from copy import deepcopy
 
-
+import torch
 import onnxruntime as ort
 from huggingface_hub import snapshot_download
 
@@ -64,7 +64,7 @@ class Recognizer(object):
         # Shrink GPU memory after execution
         self.run_options = ort.RunOptions()
 
-        if ort.get_device() == "GPU":
+        if torch.cuda.is_available():
             options = ort.SessionOptions()
             options.enable_cpu_mem_arena = False
             cuda_provider_options = {

pyproject.toml

@@ -100,6 +100,7 @@ dependencies = [
     "tencentcloud-sdk-python==3.0.1215",
     "tika==2.6.0",
     "tiktoken==0.7.0",
+    "torch>=2.5.0,<3.0.0",
     "umap_learn==0.5.6",
     "vertexai==1.64.0",
     "volcengine==1.0.146",
@@ -131,6 +132,5 @@ full = [
     "fastembed>=0.3.6,<0.4.0; sys_platform == 'darwin' or platform_machine != 'x86_64'",
     "fastembed-gpu>=0.3.6,<0.4.0; sys_platform != 'darwin' and platform_machine == 'x86_64'",
     "flagembedding==1.2.10",
-    "torch>=2.5.0,<3.0.0",
     "transformers>=4.35.0,<5.0.0"
 ]

uv.lock

@@ -4814,6 +4814,7 @@ dependencies = [
     { name = "tencentcloud-sdk-python" },
     { name = "tika" },
     { name = "tiktoken" },
+    { name = "torch" },
     { name = "umap-learn" },
     { name = "valkey" },
     { name = "vertexai" },
@@ -4836,7 +4837,6 @@ full = [
     { name = "fastembed", marker = "platform_machine != 'x86_64' or sys_platform == 'darwin'" },
     { name = "fastembed-gpu", marker = "platform_machine == 'x86_64' and sys_platform != 'darwin'" },
     { name = "flagembedding" },
-    { name = "torch" },
     { name = "transformers" },
 ]
 
@@ -4946,7 +4946,7 @@ requires-dist = [
     { name = "tencentcloud-sdk-python", specifier = "==3.0.1215" },
     { name = "tika", specifier = "==2.6.0" },
     { name = "tiktoken", specifier = "==0.7.0" },
-    { name = "torch", marker = "extra == 'full'", specifier = ">=2.5.0,<3.0.0" },
+    { name = "torch", specifier = ">=2.5.0,<3.0.0" },
     { name = "transformers", marker = "extra == 'full'", specifier = ">=4.35.0,<5.0.0" },
     { name = "umap-learn", specifier = "==0.5.6" },
     { name = "valkey", specifier = "==6.0.2" },