Added wait=True to a couple more clear_output calls.

IPython/parallel/client/asyncresult.py

@@ -391,7 +391,7 b' class AsyncResult(object):'
         tic = time.time()
         while not self.ready() and (timeout < 0 or time.time() - tic <= timeout):
             self.wait(interval)
-            clear_output()
+            clear_output(wait=True)
             print("%4i/%i tasks finished after %4i s" % (self.progress, N, self.elapsed), end="")
             sys.stdout.flush()
         print()

examples/parallel/InteractiveMPI-publish-data.ipynb

@@ -271,7 +271,7 b''
       "        # We clear the notebook output before plotting this if in-place \n",
       "        # plot updating is requested\n",
       "        if in_place:\n",
-      "            clear_output()\n",
+      "            clear_output(wait=True)\n",
       "        display(fig)\n",
       "        \n",
       "        return fig"
@@ -333,7 +333,7 b''
       "        msg = 'Simulation completed!'\n",
       "    tmon = dt.datetime.now() - t0\n",
       "    if plots_in_place and fig is not None:\n",
-      "        clear_output()\n",
+      "        clear_output(wait=True)\n",
       "        plt.close('all')\n",
       "        display(fig)\n",
       "    print msg\n",

examples/parallel/InteractiveMPI.ipynb

@@ -281,7 +281,7 b''
       "    plt.axis('off')\n",
       "    # We clear the notebook output before plotting this if in-place plot updating is requested\n",
       "    if in_place:\n",
-      "        clear_output()\n",
+      "        clear_output(wait=True)\n",
       "    display(fig)\n",
       "    return fig"
      ],
@@ -377,7 +377,7 b''
       "        msg = 'Simulation completed!'\n",
       "    tmon = dt.datetime.now() - t0\n",
       "    if plots_in_place and fig is not None:\n",
-      "        clear_output()\n",
+      "        clear_output(wait=True)\n",
       "        plt.close('all')\n",
       "        display(fig)\n",
       "    print msg\n",