CactusTutorial: work around OpenMPI issue on Ubuntu 18.04

not directly relevant for our current 16.04 image but still good to have. See open-mpi/ompi#4948
rhaas80 · Jun 6, 2019 · 2f7d94d · 2f7d94d
1 parent d7de575
commit 2f7d94d
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/CactusTutorial.ipynb b/CactusTutorial.ipynb
@@ -72,6 +72,9 @@
     "from IPython.core.magic import register_cell_magic\n",
     "@register_cell_magic\n",
     "def bash(line, cell): get_ipython().system(cell)\n",
+    "# OpenMPI in docker containers produces warnings due to the vader library, this disables them\n",
+    "import os\n",
+    "os.environ[\"OMPI_MCA_btl_vader_single_copy_mechanism\"] = \"none\""
    ]
   },
   {