The current trend in processor architecture design adopts the integration of multiple cores on a single processor. The tightly integrated processing cores in one chip with communication latencies substantially lower than those present in conventional clusters provide potential performance improvement especially for the fine-grained PDES. Thus, in the PDES domain, one of the research focuses is on modifying software platforms to efficiently utilize the computation resources of multi-core processors. The current dynamic load balancing technologies for PDES cannot reach the twin goals of good balance and low event-scheduling overhead. By taking advantage of multi-core architecture with shared memory address space and low communication, a global schedule mechanism based on a distributed event queue is proposed. Its specially designed data structures and algorithms reduced the cost of lock operations much. In comparison with the distributed event queue local schedule mechanism, the experiment results show that the distributed queue global schedule mechanism can effectively reduce the rollback rate and balance the workloads at a low event scheduling cost for Time Warp system on multi-core platforms.