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As energy efficiency and associated costs become key concerns, consolidated and virtualized data centers and clouds are attractive computing platforms for data- and compute- intensive applications. These platforms provide an abstraction of nearly-unlimited computing resources through the elastic use of pools of consolidated resources, and provide opportunities for higher utilization and energy savings...
The increasing demand for resources of the high performance computing systems has led to new forms of collaboration of distributed systems such as interoperable grid systems that contain and manage their own resources. While with a single grid domain one of the most important tasks is the selection of the most appropriate set of resources to dispatch a job, in an interoperable grid environment this...
Grid computing has emerged as a way to share geographically and organizationally distributed resources that may belong to different institutions or administrative domains. In this context, the scheduling and resource management is usually performed by a grid resource broker. The scheduling task consists of distributing the jobs among the different centers resources and the need to coordinate the grid...
Forecasting and monitoring earth phenomenon is fundamental to reducing natural disasters hazards. However, how to react after a given disaster occurs is also a key issue that can improve response times and save lives. GISCorps is a program of the urban and Regional Information Systems Association (URISA) that coordinates short-term, volunteer-based GIS services to underprivileged communities. In case...
While numerous global initiatives exist to address the potential hazards posed by volcanic eruption events and assess impacts from a civil security viewpoint, there is still no single, unified, international system of early warning and hazard tracking for eruptions. Numerous gaps exist in the risk reduction cycle, from data collection, to data processing, and finally dissemination of salient information...
In general, a standard is described as an established norm or a requirement list. Standards can be developed as formal documents to establish uniform engineering and technical criteria. The standardization process may be achieved through an edict or it may involve the formal consensus of technical experts. Today, in the growing global technical market, standardization is still a developing process,...
Grid resource management tools have evolved from manual discovery and job submission to sophisticated brokering solutions. User requirements have created certain properties that resource managers have learned to support. This development is still continuing, and users already find it difficult to distinguish brokers and to migrate their applications when they move to a different grid. Moreover, new...
The research on the usage of prediction techniques in HPC scheduling policies rather than user estimates has increased it relevance these recent years. In the coming scheduling architectures, like grids and very heterogeneous computational resources, such techniques are having a crucial relevance due to users in most of the cases will not have enough information or enough skills for specify for how...
Job scheduling policies for HPC centers have been extensively studied during these last years, specially backfilling based policies. Almost all of these studies have been done using simulation tools. These tools evaluate the performance of scheduling policies using the workloads and the resource definition as an input. To the best of our knowledge, all the existent simulators use the runtime (either...
Grids allow large scale resource-sharing across different administrative domains. Those diverse resources are likely to join or quit the grid at any moment or possibly to break down. Grid monitoring tools have to adapt supporting access information to these heterogeneous and not reliable environments. There is a wide rage of types of resources to be monitored, with different nature, characteristics...
Job monitoring in Grid systems presents an important challenge due to Grid environments are volatile, heterogeneous, not reliable and are managed by different middlewares and monitoring tools. We present the infrastructure that we have designed and implemented in the HPC-Europa European project that allows uniform access to job monitoring information from different virtual organizations. The presented...
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