Can anyone please tell me which tools are used for power grid analysis and which ones are better in terms of performance, usability, debug info. e.t.c.,
You can use AstroRail for static analysis. It's a garbage-in-garbage-out tool, can be painful to debug. Support both flat and hierarchical analysis for big design. Performance wise, flat analysis is good enough for block level but fullchip is an issue for 65nm and beyond.