Atomic Commit Protocols (ACP) are used to maintain atomicity in distributed systems. There are protocols available to minimize the overhead between the coordinator and participants, some are to minimize blocking while some to release the locks acquire by different participants. Optimized Two phase Commit (O-2PC) Protocol has been proposed to optimize the performance of 2PC based of deferred and immediately consistency constraints by overlapping the voting phase where initiation of protocol is done from participant side. But no simulator is currently available.