view.abort() aborts all outstanding tasks

Behavior now matches what docstring always claimed (default=all).

IPython/parallel/client/client.py

@@ -886,11 +886,14 b' class Client(HasTraits):'
 
         jobs : msg_id, list of msg_ids, or AsyncResult
             The jobs to be aborted
-
+            
+            If unspecified/None: abort all outstanding jobs.
 
         """
         block = self.block if block is None else block
+        jobs = jobs if jobs is not None else list(self.outstanding)
         targets = self._build_targets(targets)[0]
+        
         msg_ids = []
         if isinstance(jobs, (basestring,AsyncResult)):
             jobs = [jobs]

IPython/parallel/client/view.py

@@ -271,6 +271,8 b' class View(HasTraits):'
         """
         block = block if block is not None else self.block
         targets = targets if targets is not None else self.targets
+        jobs = jobs if jobs is not None else list(self.outstanding)
+        
         return self.client.abort(jobs=jobs, targets=targets, block=block)
 
     def queue_status(self, targets=None, verbose=False):

IPython/parallel/tests/test_view.py

@@ -292,7 +292,16 b' class TestView(ClusterTestCase):'
         view.abort(ar3.msg_ids)
         self.assertRaises(error.TaskAborted, ar2.get)
         self.assertRaises(error.TaskAborted, ar3.get)
-        
+    
+    def test_abort_all(self):
+        """view.abort() aborts all outstanding tasks"""
+        view = self.client[-1]
+        ars = [ view.apply_async(time.sleep, 1) for i in range(10) ]
+        view.abort()
+        view.wait(timeout=5)
+        for ar in ars[5:]:
+            self.assertRaises(error.TaskAborted, ar.get)
+    
     def test_temp_flags(self):
         view = self.client[-1]
         view.block=True