Euro-Par 2009 – Parallel Processing Workshops

Software-as-a-Service (SaaS) is an interesting concept for providing scientific applications. Service providers in this field have to either run their own data centre or to outsource the applications to a third party provider. In both cases, they want to optimally utilize resources without violating service level agreements (SLAs) negotiated with their customers. This work analyzes the properties of scientific applications. We found that there are essential differences between scientific and business applications. We also build up an own cloud and analyze Gromacs 4, a common scientific application. This shows that for fulfilling an SLA, it is often possible to provide different configurations, using either a few high performance machines or multiple smaller machines. Furthermore, experiences of the performance behavior gained in physical environments must not necessarily apply in virtual environments. Fulfilling SLAs also depends significantly on the mapping of the virtual machines to physical hosts.

Providing Scientific Software as a Service in Consideration of Service Level Agreements

Grid computing enables access to high performance computing resources by offering unified interfaces to compute facilities of distributed compute centers. These compute centers are limited in personal capacity and in support capabilities for different communities/VOs. This work presents a solution to this management problem by facilitating the natural interface introduced by virtualization to separate hardware and application provisioning. Any eScience community may provide preconfigured applications within virtual machine images and compute centers run these without having to maintain applications. This is similar to the Infrastructure as a Service and Software as a Service known from cloud computing. Additionally, in contrast to the state of the art in grid computing, we propose a scalable process to maintain compute resources for scientific users, including the definition of a chain of trust between users and compute centers, which simplifies the addition of communities and resources. As a result, this paper lays the foundation for a next-generation eScience Cloud improving the accessibility of compute resources for research and industry.

eScience Cloud Infrastructure

Providing Scientific Software as a Service in Consideration of ServiceLevel Agreements

This structural design mainly concentrates on the concept of Virtualization. This architecture is an innovative approach towards the virtualization technology. This mainly depends on ‘Virtual Service’, providing the optimal implementation of Virtual Hardware, Virtual Machine, Virtual Applications, Virtual Trust, Virtual Security and Virtual Space. This Virtual Space contains collection of virtual machines which run on virtual hardware environment containing virtual applications. During communication between the virtual applications, Virtual Security has been ensured along with virtual trusted connection. This architecture also aims to increase the speed of transmission and minimize the malware threat.

Design of Secure Communication Model for Virtual Environment

CESGA is operating a totally virtualized grid infrastructure that supports several production sites for different grid projects (EGEE, EELA, int.eu.grid (I2G), Ibergrid, and other regional grid projects) as well as several development sites created on demand to test new middleware releases both for EGEE certification and pre-production activities. The final architecture that results from several years of development is described showing how to apply modern virtualization solutions like Xen hypervisor to migrate from an entire physical cluster to virtual machines. Thanks to a collaboration with FORMIGA's project the infrastructure also includes resources from computer labs. Worker Node VMs are automatically started following a pre-defined schedule that guarantees that the computers are not in use. Extensive benchmarks, including two of the most used applications at our supercomputing center, have been performed to quantify the performance loss of the virtual infrastructure. Currently cloud computing technologies are being explored as a way to improve the service deployment process in our platform.

Providing grid services based on virtualization and cloud technologies

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

Sergio Díaz

Author Tools

Chat about Author

Papers

Providing grid services based on virtualization and cloud technologies