modify docs

paddlex/cv/datasets/coco.py

@@ -44,7 +44,7 @@ class CocoDetection(VOCDetection):
                  transforms=None,
                  num_workers='auto',
                  buffer_size=100,
-                 parallel_method='process',
+                 parallel_method='thread',
                  shuffle=False):
         from pycocotools.coco import COCO
 

paddlex/cv/datasets/easydata_cls.py

@@ -47,7 +47,7 @@ class EasyDataCls(ImageNet):
                  transforms=None,
                  num_workers='auto',
                  buffer_size=100,
-                 parallel_method='process',
+                 parallel_method='thread',
                  shuffle=False):
         super(ImageNet, self).__init__(
             transforms=transforms,

paddlex/cv/datasets/easydata_det.py

@@ -48,7 +48,7 @@ class EasyDataDet(VOCDetection):
                  transforms=None,
                  num_workers='auto',
                  buffer_size=100,
-                 parallel_method='process',
+                 parallel_method='thread',
                  shuffle=False):
         super(VOCDetection, self).__init__(
             transforms=transforms,

paddlex/cv/datasets/easydata_seg.py

@@ -46,7 +46,7 @@ class EasyDataSeg(Dataset):
                  transforms=None,
                  num_workers='auto',
                  buffer_size=100,
-                 parallel_method='process',
+                 parallel_method='thread',
                  shuffle=False):
         super(EasyDataSeg, self).__init__(
             transforms=transforms,

paddlex/cv/datasets/imagenet.py

@@ -46,7 +46,7 @@ class ImageNet(Dataset):
                  transforms=None,
                  num_workers='auto',
                  buffer_size=100,
-                 parallel_method='process',
+                 parallel_method='thread',
                  shuffle=False):
         super(ImageNet, self).__init__(
             transforms=transforms,

paddlex/cv/datasets/seg_dataset.py

@@ -44,7 +44,7 @@ class SegDataset(Dataset):
                  transforms=None,
                  num_workers='auto',
                  buffer_size=100,
-                 parallel_method='process',
+                 parallel_method='thread',
                  shuffle=False):
         super(SegDataset, self).__init__(
             transforms=transforms,

paddlex/cv/datasets/voc.py

@@ -48,7 +48,7 @@ class VOCDetection(Dataset):
                  transforms=None,
                  num_workers='auto',
                  buffer_size=100,
-                 parallel_method='process',
+                 parallel_method='thread',
                  shuffle=False):
         from pycocotools.coco import COCO
         super(VOCDetection, self).__init__(