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Iran is one of the most mountainous regions of the world. The average height is quite high. Haftavan Tepe is located in the West Azerbaijan Region in Iran. The height of the mound is 25 m. It is around. It covers 50 acres of land. Haftavan, also known as Tepe Jiyan, is one of the largest mounds in the Tepe Rezaiyeh region. It was excavated by C. Burney for many years. Haftavan Tepe contains the remains of eight cultural layers. From the culture of burns to the Sasanian culture, there is continuity. Haftavan Tepe is similar to Yanık Tepe, Hasanlu Tepe or Goy Tepe. The similarity to the Yanık Tepe culture is evident in the first cultural layers of Haftavan Tepe. Its architectural and ceramic features show this similarity. III. As in Hassanli culture layer III. Haftavan Tepe settlement belongs to Urartians. The finds showing the characteristics of the period can be found here.

This paper considers the challenge of designing a framework that supports the integration of multiple existing simulation models into an integrated simulation environment (multisimulation). We aim to facilitate the process of fusing together the independently created simulators into an integrated simulation environment wherein we can model and execute complex scenarios involving multiple simulators. In this paper, we focus on solutions for the synchronization problem in multisimulation to orchestrate consistent information flow through multiple simulators. In particular, we provide: (1) a transaction-based approach to modeling the synchronization problem in multisimulations by mapping it to a problem similar to multidatabase concurrency; we express multisimulation synchronization as a scheduling problem where the goal is to generate “correct schedules” for time advancement and data exchange across simulators that meets the dependencies without loss of concurrency; (2) a hybrid scheduling strategy which adapts itself to the “right” level of pessimism/optimism based on the state of the execution and underlying dependencies. We also develop two key optimizations: (a) efficient checkpointing/rollback techniques; and (b) relaxation model for dependencies which guarantees bounded violation of consistency to support higher levels of concurrency. We evaluate our proposed techniques via a detailed case study from the emergency response domain by integrating three disparate simulators: a fire simulator (CFAST), an evacuation simulator (Drillsim) and a communication simulator (LTEsim).

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