Add max_keep_ckpts for groupfree3d (#765)

configs/groupfree3d/groupfree3d_8x4_scannet-3d-18class-L12-O256.py

@@ -196,6 +196,7 @@ lr_config = dict(policy='step', warmup=None, step=[280, 340])
 
 # runtime settings
 runner = dict(type='EpochBasedRunner', max_epochs=400)
+checkpoint_config = dict(interval=1, max_keep_ckpts=10)
 # yapf:disable
 log_config = dict(
     interval=30,

configs/groupfree3d/groupfree3d_8x4_scannet-3d-18class-L6-O256.py

@@ -195,6 +195,7 @@ lr_config = dict(policy='step', warmup=None, step=[280, 340])
 
 # runtime settings
 runner = dict(type='EpochBasedRunner', max_epochs=400)
+checkpoint_config = dict(interval=1, max_keep_ckpts=10)
 # yapf:disable
 log_config = dict(
     interval=30,

configs/groupfree3d/groupfree3d_8x4_scannet-3d-18class-w2x-L12-O256.py

@@ -211,6 +211,7 @@ lr_config = dict(policy='step', warmup=None, step=[280, 340])
 
 # runtime settings
 runner = dict(type='EpochBasedRunner', max_epochs=400)
+checkpoint_config = dict(interval=1, max_keep_ckpts=10)
 # yapf:disable
 log_config = dict(
     interval=30,

configs/groupfree3d/groupfree3d_8x4_scannet-3d-18class-w2x-L12-O512.py

@@ -212,6 +212,7 @@ lr_config = dict(policy='step', warmup=None, step=[280, 340])
 
 # runtime settings
 runner = dict(type='EpochBasedRunner', max_epochs=400)
+checkpoint_config = dict(interval=1, max_keep_ckpts=10)
 # yapf:disable
 log_config = dict(
     interval=30,