xmlNewNode        451 opal/mca/hwloc/hwloc201/hwloc/hwloc/topology-xml-libxml.c   root_node = xmlNewNode(NULL, BAD_CAST "topology");
xmlNewNode        523 opal/mca/hwloc/hwloc201/hwloc/hwloc/topology-xml-libxml.c   root_node = xmlNewNode(NULL, BAD_CAST "topologydiff");