To check Layout u have check LVS (Layout Versus Schematic) It will check compare the connections with schematic....another one is u have to check DRC(DesignRuleCheck) It wll check spacing error between the metal layers etc... I think these details u may know... What do you want to check ?? tell it clearly..
i want whether the layout which i got is correct or not.Is herculus is the tool which should be used for this purpose.