Merge remote-tracking branch 'nccl/master' into develop

src/graph/xml.cc

@@ -478,7 +478,7 @@ ncclResult_t ncclTopoGetXmlFromSys(struct ncclXmlNode* pciNode, struct ncclXml*
     if (path == NULL) NCCLCHECK(getPciPath(busId, &path));
     NCCLCHECK(ncclTopoSetAttrFromSys(pciNode, path, "class", "class"));
   }
-  ncclDebugNoWarn = 1;
+  ncclDebugNoWarn = NCCL_GRAPH;
   NCCLCHECK(xmlGetAttrIndex(pciNode, "vendor", &index));
   if (index == -1) {
     if (path == NULL) getPciPath(busId, &path);