Human endeavor for ultimate destination achieved a new dimension after the invention of computer. This landmark in world history has brought drastic changes in the nature of our work, enhanced our lifestyle, secured our mission, upgrade our vision, and have demolished many geographical obstacles. Systematic progress of human life depends on technological evolution. Computer is a dynamic element of modem technology, which reduces human labor and introduced artificial working facilities by which people get optimum opportunity to make their contribution.
Massive computer applications can be classified into two major categories:
Communication based and Research based
Chronological advancement of Internet integrates the world and in the same time opens a virtual world of knowledge, Developments of optical fiber renovate network applications. GPS enable us to locate anyone from any geographical place at any weather condition. CDMA provides security in cellular technology. VSAT is the gateway to access wide range of information. All these computer-aided technologies are employed for the sustainable development of human society.
A little consideration will show that above mentioned technologies are dedicated for communications. Although – a well-organized communication system is mandatory for the advanced scientific and engineering research but it is not adequate to satisfy all requirements to reach the ultimate stage of a research work. Present scenario of advanced scientific and engineering works indicates extreme computing capability, which is not possible to build up with the existing knowledge of computing due to some technological limitations.
Grid computing has emerged as a potential platform for high-level computer oriented activities. It launches a new horizon in conventional computing and brings many unpredictable facilities in advance scientific and engineering research. The prime opportunity which grid computing provides is resource shearing. Here resources means processing power, networks bandwidth, storage capacity, and extensive database etc. Resource sharing is a vital fact in computer intensive research activities.
Coalition of resources develops a collective power, which helps scientists to visualize the mystery of success. In grid computing resource sharing is done virtually. Resources are simultaneously applied for a particular problem in order to make quick processing and obtain a definite output. All resources are jointly work as a single system image. Eligible software’s are used to govern the whole system. Now a days isolated research activities is not quite effective to face the upspring demand of human being Ironically we are not concerned about our needs.’ We asked science to make an honest explanation for the crucial situations. Science has a noble duty to give a perfect solution but more instrumental progress is essential in order to produce the desire output. Supercomputer is considered as a mega power in computing world. But integration between supercomputers is a smart idea to fight against the complexity of modern science. Grid computing offers a unified environment, which accelerate the motion of present day science and engineering activities. For example if we imagine a research project which needs frequent participation of scientists and technicians, complex computer simulations, laboratory support, mathematical analysis, proper database management, and instant results for subsequent action etc to make a decision, what we able to do? The prompt answer is we need aunique collaboration among these things. On the other hand a proper resource management in order to get the significant outcome. Scientist when he develops a method he needs the consultation with fellow scientists to make the right justification. This method is implemented in laboratories with the help of instruments, convenient mathematical analysis, essential computer simulations, and data base support. After that the results send to scientists for successive process. The prior decision may need to update within a short span of time in order to achieve a new solution. Basically in this research work scientists need aggregate processing speed, vast storage capacity, and huge networks bandwidth to survive the mission. But the reality is, resources are vnot organized within a single physical structure. Grid technology establishes bridges among these resources to conduct the whole plan. Resources are synchronized to produce instant response although they are scattered. In a certain phase of a scientific research processing speed is a great concern in order to execute faster analysis, in this case single supercomputer may or may not be able to face the demand. So processing speed of supercomputers is needed to apply. Similarly when large-scale data is essential in a research work it need wide storage capacity. Compatible networks bandwidth is also an inevitable part in this regard. Grid technology develops a virtual organization. The operation of this virtual organization is maintained within a single structure. A central server is monitoring and controls the whole process. Grid technology is used in many constructive purposes. For example it is used in High Energy and Nuclear Physics, Climate analysis, Astrophysics, Automotive and aerospace, for collaborative design and data-intensive testing; financial services, for running long, complex scenarios and arriving at more accurate decisions; life sciences, for analyzing and decoding strings of
biological and chemical information government, for enabling seamless collaboration and agility in both civil and military departments and agencies; higher education for enabling advanced, data and computer intensive research. Benefits of this robust technology are many. It ensure-maximum use of resources, Increaseis productivity and collaboration, smoothes and speeds up solution within a minimum time slot. Mor flexible, resilient operational infrastructures Avoiding common pitfalls of over-provisioning and incurring excess costs In modern technology grid computing is the harbinger of a new age. Its enormous contribution in science and business area brings a ray of hope, which empowers us to face the challenge of upcoming generation.