Referring to the OVM file, named ovm_globals.svh (http://www.specman-verification.com/source_bank/ovm-2.1.2/ovm-2.1.2/src/base/ovm_globals.svh.php)
I see a lot of method, exp:
ovm_top.ovm_report_info(id, message, verbosity, filename, line);
ovm_top.ovm_report_warning(id, message, verbosity, filename, line);
ovm_top.ovm_report_fatal(id, message, verbosity, filename, line);
May I know, where does the ovm_top branch from?