Make the testing into an extension run at each validation

1 files changed, 33 insertions, 0 deletions

diff --git a/ext_saveload.py b/ext_saveload.py
new file mode 100644
index 0000000..cc7c47a
--- /dev/null
+++ b/ext_saveload.py
@@ -0,0 +1,33 @@
+import cPickle
+import logging
+
+from blocks.extensions import SimpleExtension
+
+logger = logging.getLogger(__name__)
+
+class SaveLoadParams(SimpleExtension):
+    def __init__(self, path, model, **kwargs):
+        super(SaveLoadParams, self).__init__(**kwargs)
+
+        self.path = path
+        self.model = model
+    
+    def do_save(self):
+        with open(self.path, 'w') as f:
+            logger.info('Saving parameters to %s...'%self.path)
+            cPickle.dump(self.model.get_param_values(), f, protocol=cPickle.HIGHEST_PROTOCOL)
+            logger.info('Done saving.')
+    
+    def do_load(self):
+        try:
+            with open(self.path, 'r') as f:
+                logger.info('Loading parameters from %s...'%self.path)
+                self.model.set_param_values(cPickle.load(f))
+        except IOError:
+            pass
+
+    def do(self, which_callback, *args):
+        if which_callback == 'before_training':
+            self.do_load()
+        else:
+            self.do_save()