IIAP coordinates the ArmNGI (Armenian National Grid Initiative), which is a national Armenian effort to establish a nationwide grid environment for computational science and research. The goal of the ArmNGI is to pursue a variety of scientific users in utilizing the Grid for their applications. All these applications rely on a wide range of diverse computer science technologies composed from standard grid middleware and sophisticated high-level extensions. Now the computational resources (about 500 cores) of Armenian Grid infrastructure distributed among our leading research (National Academy of Sciences, Yerevan Physics Institute) and academic (Yerevan State University, State Engineering University of Armenia) organizations are located in the cities of Yerevan and Ashtarak. Being the most powerful computational resource in the field of science and education in Armenia, the Armcluster constitutes the core of the Armenian grid infrastructure.