Green Cloud Computing June 6, 2010Posted by Rajkumar Buyya in Cloud Computing, CLOUDS Lab News, Manjrasoft News.
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I would like to share a pointer to our recent work on Green Cloud
Computing. As you know our CLOUDS Lab at the University of Melbourne has
been working on energy-efficient resource management techniques for Data
Centers since 2007. Based on this experience and its growing importance
for Cloud computing, we have put together an article that offers vision,
identifies key architectural elements for Green Cloud Computing, and
open challenges and presents initial results (see below for details). I
hope you will find it useful.
Full paper can be found at:
If you comments and suggestions on improving the work, please let us
know. Thank you.
Title: Energy-Efficient Management of Data Center Resources for Cloud
Computing: A Vision, Architectural Elements, and Open Challenges
Authors: Rajkumar Buyya, Anton Beloglazov, and Jemal Abawajy
Abstract: Cloud computing is offering utility-oriented IT services to
users worldwide. Based on a pay-as-you-go model, it enables hosting of
pervasive applications from consumer, scientific, and business domains.
However, data centers hosting Cloud applications consume huge amounts of
energy, contributing to high operational costs and carbon footprints to
the environment. Therefore, we need Green Cloud computing solutions that
can not only save energy for the environment but also reduce operational
costs. This paper presents vision, challenges, and architectural
elements for energy-efficient management of Cloud computing
environments. We focus on the development of dynamic resource
provisioning and allocation algorithms that consider the synergy between
various data center infrastructures (i.e., the hardware, power units,
cooling and software), and holistically work to boost data center energy
efficiency and performance. In particular, this paper proposes (a)
architectural principles for energy-efficient management of Clouds; (b)
energy-efficient resource allocation policies and scheduling algorithms
considering quality-of-service expectations, and devices power usage
characteristics; and (c) a novel software technology for
energy-efficient management of Clouds. We have validated our approach by
conducting a set of rigorous performance evaluation study using the
CloudSim toolkit. The results demonstrate that Cloud computing model has
immense potential as it offers significant performance gains as regards
to response time and cost saving under dynamic workload scenarios.
URL for Full Paper: http://www.buyya.com/papers/GreenCloud2010.pdf
Rajkumar Buyya, Anton Beloglazov, and Jemal Abawajy, Energy-Efficient
Management of Data Center Resources for Cloud Computing: A Vision,
Architectural Elements, and Open Challenges, Proceedings of the 2010
International Conference on Parallel and Distributed Processing
Techniques and Applications (PDPTA 2010), Las Vegas, USA, July 12-15, 2010.
The Cloudbus Project to Release CloudSim Toolkit 2.0 May 27, 2010Posted by Rajkumar Buyya in CLOUDS Lab News, Uncategorized.
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The CLOUDS Lab and its flagship Cloudbus Project at The University of
Melbourne, Australia along with collaborators from Pontifical Catholic
University of Rio Grande do Sul (PUCRS), Brazil is pleased to announce
the release of the new version of its Cloud simulation software, the
One year has passed since CloudSim 1.0 was released. Since then, Cloud
computing has gained more visibility, and a plenty of new projects, both
in academia and in the industry, emerged. To help developers of such
projects to evaluate new strategies and ideas before actual development,
CloudSim 2.0 offers support for model and simulation of hot topics in
Cloud Computing, including green/power-aware Cloud Computing and
federated Cloud Computing.
At the same time new features were added, major improvements in
simulation core allowed enhanced scalability and performance of
simulations and insertion and removal of simulation entities
during simulation execution. It increases considerably scenarios that
may be addressed in simulations, what we hope will contribute to a wider
adoption of the tool by the research ommunity.
These improvements were possible due to extensive support from the Cloud
Computing research community around the world, which used CloudSim,
appointed bugs, and provided us feedback on new features they would like
to have in future versions the toolkit. Community is invited to
keep contribution to CloudSim.
As in its previous version, all components developed as part of the
CloudSim Toolkit are released as “open source” under the GPL license to
encourage innovation and pass full freedom to our users.
To download the CloudSim software, please visit the Cloudbus Project web
The CloudSim Team
Melbourne, May 2010
CCGrid 2010 Invitation + CLOUDS Lab News April 25, 2010Posted by Rajkumar Buyya in Cloud Computing, CLOUDS Lab News, Manjrasoft News, Uncategorized.
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Let me share upcoming CLOUDS hosted events and recent highlights:
1. As you know our CLOUDS Lab is hosting CCGrid 2010:
The 10th IEEE/ACM International Symposium on Cluster, Cloud and Grid
Computing (CCGrid 2010)
in Melbourne from May 17-20, 2010. On behalf of CLOUDS Lab and the
entire organising committee, I would like to invite you to participate
in in this 10th anniversary conference. CCGrid 2010 offers outstanding
technical program featuring keynote talks, tutorials, workshops,
mini-symposiums, posters sessions, IEEE SCALE competition, and research
demos. This year program as a special focus on Cloud Computing.
Highlights of the conference can be found in the attached Call for
Participation. Please share it with your friends, students, colleagues;
and encourage them to participate in CCGrid 2010.
2. In the area of Cloud Computing, recently CLOUDS lab member have
published many papers. They include:
AINA 2010 Papers:
* CloudAnalyst: A CloudSim-based Visual Modeller for Analysing Cloud
Computing Environments and Applications
* Minimizing Execution Cost when using Globally Distributed Cloud Services
* A Particle Swarm Optimization (PSO)-based Heuristic for Scheduling
Workflow Applications in Cloud Computing Environments,
3. One of our AINA 2010 papers has received the Best Paper Award.
Details at: http://www.cloudbus.org/news/BestPaperAward-AINA2010.txt
4. Manjrasoft, spin-off company of the the University of Melbourne
commercialising CLOUDS Lab’s research and innovation, has been
attracting interesting users for its Aneka technology. For details,
check out “Economic Times of India” article on “Clearing hurdles with
cloud computing” appeared on Feb 8, 2010. A copy of which can be found
With this brief note, once again, I like to invite all of you attend
CCGrid 2010. I look forward to see you all in Melbourne!
C A L L F O R P A R T I C I P A T I O N
The 10th IEEE/ACM International Symposium on
Cluster, Cloud and Grid Computing (CCGrid 2010)
May 17-20, 2010, Melbourne, Australia
IEEE Computer Society / Technical Committee on Scalable Computing
ACM (Association of Computing Machinery)
* Cloud Computing and Distributed Systems (CLOUDS) Laboratory,
The University of Melbourne, Australia
* ISSNIP: ARC Research Network on Intelligent Sensors,
Sensor Networks and Information Processing
* Manjrasoft Pty Ltd, Melbourne, Australia
* NSF Center for Autonomic Computing
Rutgers, the State University of New Jersey, USA
In 2010, CCGrid will return to Australia, to Melbourne, to celebrate its
10th anniversary. CCGrid 2010 will have a special focus on three
important and immediate issues that are significantly influencing all
aspects of Cluster, Cloud and Grid computing: Economics, Environment and
CCGrid 210 HIGHLIGHTS:
* CCGrid 2010 celebrates its 10th anniversary in Melbourne, Australia.
* CCGrid 2010 has accepted 51 full papers from an exceptionally strong
field of 219 reviewed full paper submissions, resulting in an acceptance
rate of ~23%.
* Hosts 8 workshops/mini-symposiums on HOT topics such as MultiCore
Clusters, Clouds for Business Applications, GPU Clusters, Innovative
Scientific/Medial Applications, and a Doctoral Symposium.
* Hosts 3rd IEEE International Scalable Computing Challenge (SCALE 2010)
* Hosts Plenary Session dedicated for Poster Exhibit and Research Demos
1. IEEE Medal for Excellence in Scalable Computing Lecture:
Title: Enabling the Next Generation of Scalable Clusters
By: Professor William D. Gropp
Paul and Cynthia Saylor Professor of Computer Science
University of Illinois Urbana-Champaign, USA
2.Title: Sky Computing: When Multiple Clouds Become One
By: Professor José A.B. Fortes
BellSouth Eminent Scholar and Director, NSF Center for Autonomic
Computing, The University of Florida, Gainesville, USA
The CCGrid 2010 conference will be held at The Langham – Melbourne
The hotel is situated on the banks of the Yarra River offering views of
the Melbourne city skyline, amid Southbank’s al fresco cafes,
restaurants, bars and boutiques, and a short stroll from Federation
Square, the Arts Centre and the Botanical Gardens. For further details,
please visit: http://www.manjrasoft.com/ccgrid2010/ccgrid2010venue.html
Scopus Young Researcher of the Year 2010 Award: Finalist March 28, 2010Posted by Rajkumar Buyya in Cloud Computing, CLOUDS Lab News.
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# Congratulations to Prof Raj Buyya
(Source: Staff e-bulletin, Melbourne School of Engineering, March 26, 2010)
Prof Raj Buyya has received a finalist award in the “Scopus Young Researcher of the Year 2010” awards in the category of Engineering and Technology. The award was presented by Elsevier Science and Universities Australia.
This award recognises Raj’s high quality and high impact research contributions including; research impact as evidenced by high citations; research output as evidence by co-authoring over 300 publications, which include 4 textbooks utilised by several universities world-wide; and external impacts such as leadership in the development of software technologies that are used by several academic institutions and commercial enterprises in 40 countries around the world.
Raj and his team’s innovative research has had significant influence on Cloud computing products developed by companies such as Amazon, IBM, Microsoft, Sun, and Manjrasoft.
The School would like to congratulate Raj on his achievement.
InterCloud: Utility-Oriented Federation of Cloud Computing Environments for Scaling of Application Services
Rajkumar Buyya, Rajiv Ranjan, Rodrigo N. Calheiros
Cloud computing providers have setup several data centers at different geographical locations over the Internet in order to optimally serve needs of their customers around the world. However, existing systems do not support mechanisms and policies for dynamically coordinating load distribution among different Cloud-based data centers in order to determine optimal location for hosting application services to achieve reasonable QoS levels. Further, the Cloud computing providers are unable to predict geographic distribution of users consuming their services, hence the load coordination must happen automatically, and distribution of services must change in response to changes in the load. To counter this problem, we advocate creation of federated Cloud computing environment (InterCloud) that facilitates just-in-time, opportunistic, and scalable provisioning of application services, consistently achieving QoS targets under variable workload, resource and network conditions. The overall goal is to create a computing environment that supports dynamic expansion or contraction of capabilities (VMs, services, storage, and database) for handling sudden variations in service demands.
This paper presents vision, challenges, and architectural elements of InterCloud for utility-oriented federation of Cloud computing environments. The proposed InterCloud environment supports scaling of applications across multiple vendor clouds. We have validated our approach by conducting a set of rigorous performance evaluation study using the CloudSim toolkit. The results demonstrate that federated Cloud computing model has immense potential as it offers significant performance gains as regards to response time and cost saving under dynamic workload scenarios.
Comments: 20 pages, 4 figures, 3 tables, conference paper
Journal-ref: Proceedings of the 10th International Conference on Algorithms and Architectures for Parallel Processing (ICA3PP 2010, Busan, South Korea, May 21-23, 2010), LNCS, Springer, Germany, 2010.
Download full paper from: http://www.buyya.com/papers/InterCloud2010.pdf
CloudAnalyst: A CloudSim-based Visual Modeller for Analysing Cloud Computing Environments and Applications October 25, 2009Posted by Rajkumar Buyya in Cloud Computing, CLOUDS Lab News.
Title: CloudAnalyst: A CloudSim-based Visual Modeller for Analysing Cloud
Computing Environments and Applications
Authors: Bhathiya Wickremasinghe, Rodrigo N. Calheiros, and Rajkumar Buyya
Report-no: Technical Report, CLOUDS-TR-2009-12, Cloud Computing and Distributed Systems Laboratory, The University of Melbourne, Australia, Oct. 23, 2009
Advances in Cloud computing enable new possibilities to Internet applications
developers. Previously, the main concern of Internet applications developers
was deployment and hosting of applications, because it required acquisition of
a server with a fixed capacity, able to handle the expected application peak
demand, installation of the whole software infrastructure of the platform
supporting the application, and configuration of the application itself.
Furthermore, server was underutilized because peak traffic happens only at
specific times. With the advent of the Cloud, solution of this problem became
cheaper and easier with the use of pay-per-use, flexible elastic infrastructure
services offered by Cloud providers. Because several Cloud providers are
available, each one offering different pricing models and located in different
geographic regions, a new concern of application developers is selecting
providers and data center locations for applications. However, there is a lack
of tools that enable developers to evaluate requirements of large-scale Cloud
applications in terms of geographic distribution of both computing servers and
user workloads. To fill this gap in tools for evaluation and modeling of Cloud
environments and applications, in this paper we propose CloudAnalyst. It was
developed to simulate large-scale Cloud applications with the purpose of
studying the behavior of such applications under various deployment
configurations. CloudAnalyst helps developers with insights in how to
distribute applications among Cloud infrastructures and value added services
such as optimization of applications performance and providers incoming with
the use of Service Brokers.
Download full article from:
CLOUDS Lab to Release GridSim Toolkit 5.0 October 12, 2009Posted by Rajkumar Buyya in CLOUDS Lab News, Grid Computing.
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CLOUDS Lab to Release GridSim Toolkit 5.0
The Cloud Computing and Distributed Systems (CLOUDS) Laboratory at
the University of Melbourne, Australia has released the next-version of
Grid simulation software, the GridSim Toolkit 5.0.
This new version of GridSim brings a new package (i.e. gridsim.parallel) that
* A graphical user interface for debugging resource allocation policies.
* Several allocation policies for scheduling parallel jobs on clusters and
and supercomputers. The policies include aggressive backfilling, conservative
backfilling, advance reservation with conservative backfilling, selective
backfilling and agressive backfilling with multiple resource partitions.
* An implementation of the workload model by Lublin and Feitelson for modelling
the workload of clusters and supercomputers.
* A data structure to facilitate the scheduling of jobs and advance reservations.
This data structure is described as an appendix on Marcos Assuncao’s PhD thesis.
* Logging features using Java logging API.
In addition, other improvements have made GridSim more compatible with
Java 5 and 6. Some bugs have been fixed and some changes in SimJava were
required to enable a simulation to be paused and resumed.
All components developed as part of the GridSim Toolkit are released as
“open source” under the GPL license to encourage innovation and pass full
freedom to our users.
The early version of our GridSim toolkit has been used/downloaded by several
academic and commercial organizations around the world including:
University of Southern California (USA), California Institute of Technology (USA),
Argonne National Labs (USA), University of Manchester (UK), CERN,
Universidad de Santiago de Compostela (Spain), Indian Institute of Technology,
Tsinghua University (China), Sun Microsystems, IBM Research, Unisys, HP,
Northrop Grumman Information Technology, British Telecom and EMC Corp.
The contributors to the GridSim software (from early to new versions) are:
* Rajkumar Buyya, CLOUDS Lab @ The University of Melbourne.
* Manzur Murshed, GSCIT @ Monash University, Australia.
* Anthony Sulistio, CLOUDS Lab @ The University of Melbourne.
* Gokul Poduval and Chen-Khong Tham,
Dept. of Electrical & Computer Engineering @ National University of Singapore.
* Marcos Dias de Assuncao, INRIA Lyon @ Ecole Normale Superieure de Lyon
* Uros Cibej and Borut Robic, Faculty of Computer and Information Service,
The University of Ljubljana, Slovenia.
* Agustin Caminero, Department of Computing Systems,
Universidad de Castilla La Mancha (UCLM), Spain.
* James Broberg, CLOUDS Lab @ The University of Melbourne.
* Saurabh Garg, CLOUDS Lab @ The University of Melbourne.
To download the GridSim software, please visit the CLOUDS Lab web site at
Join the GridSim mailing lists at
Cloudbus Toolkit for Market-Oriented Cloud Computing October 11, 2009Posted by Rajkumar Buyya in Cloud Computing, CLOUDS Lab News.
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In my last message I mentioned about the formation of our CLOUDS Lab and a new flagship project, called Cloudbus. We recently wrote an article detailing the vision, challenges, architecture along with brief description of various tools and technologies developed. The article appears as a keynote paper in “Proceeding of the 1st International Conference on Cloud Computing (CloudCom 2009, Springer, Germany), Beijing, China, December 1-4, 2009 (as noted below). You can access full article from:
Title: Cloudbus Toolkit for Market-Oriented Cloud Computing
Authors: Rajkumar Buyya, Suraj Pandey, and Christian Vecchiola
Comments: 21 pages, 6 figures, 2 tables, Conference paper
Journal-ref: Proceeding of the 1st International Conference on Cloud Computing (CloudCom 2009, Springer, Germany), Beijing, China, December 1-4, 2009.
Abstract: This keynote paper: (1) presents the 21st century vision of computing and identifies various IT paradigms promising to deliver computing as a utility; (2) defines the architecture for creating market-oriented Clouds and computing atmosphere by leveraging technologies such as virtual machines; (3) provides thoughts on market-based resource management strategies that encompass both customer-driven service management and computational risk management to sustain SLA-oriented resource allocation; (4) presents the work carried out as part of our new Cloud Computing initiative, called Cloudbus: (i) Aneka, a Platform as a Service software system containing SDK (Software Development Kit) for construction of Cloud applications and deployment on private or public Clouds, in addition to supporting market-oriented resource management; (ii) internetworking of Clouds for dynamic creation of federated computing environments for scaling of elastic applications; (iii) creation of 3rd party Cloud brokering services for building content delivery networks and e-Science applications and their deployment on capabilities of IaaS providers such as Amazon along with Grid mashups; (iv) CloudSim supporting modelling and simulation of Clouds for performance studies; (v) Energy Efficient Resource Allocation Mechanisms and Techniques for creation and management of Green Clouds; and (vi) pathways for future research.
Cite/Reference as: Rajkumar Buyya, Suraj Pandey, and Christian Vecchiola, Cloudbus Toolkit for Market-Oriented Cloud Computing, Proceeding of the 1st International Conference on Cloud Computing (CloudCom 2009, Springer, Germany), Beijing, China, December 1-4, 2009.
Recent Updates from CLOUDS Lab October 4, 2009Posted by Rajkumar Buyya in Cloud Computing, CLOUDS Lab News, Grid Computing.
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I would like to share some recent updates in Cloud and Grid computing area coming out of my group:
1. New name for our research group – CLOUDS Lab.
Since 2007, GRIDS Lab has been working on Cloud Computing along with Grid Computing. During the last 2 years, Cloud Computing related R&D activities have peaked in GRIDS Lab and we launched a new flagship
project, called Cloudbus, for Cloud Computing. In recognition of this
new thrust in Cloud Computing, we renamed GRIDS Lab as CLOUDS Lab!
2. Recently CLOUDS Lab team members have published/wrote a number of
papers related to Grid and Cloud Computing. To share a few:
– J. Broberg, R. Buyya, and Z. Tari, MetaCDN: Harnessing ‘Storage
Clouds’ for high performance content delivery, Journal of Network and
Computer Applications, Volume 32, Issue 5, September 2009, Pages 1012-1022.
Available at: http://dx.doi.org/10.1016/j.jnca.2009.03.004
– Alexandre di Costanzo, Marcos Dias de Assuncao, and Rajkumar Buyya,
Building a Virtualized Distributed Computing Infrastructure by
Harnessing Grid and Cloud Technologies, IEEE Internet Computing, Volume
13, Number 5, Pages: 24-33, ISSN: 1089-7801, IEEE Computer Society
Press, Los Alamitos, CA, USA, September/October 2009.
Available at: http://www.buyya.com/papers/InternetComp-Cloud-2009.pdf
– Christian Vecchiola, Suraj Pandey, and Rajkumar Buyya,
High-Performance Cloud Computing: A View of Scientific Applications,
Proceedings of the 10th International Symposium on Pervasive Systems,
Algorithms and Networks (I-SPAN 2009, IEEE CS Press, USA), Kaohsiung,
Taiwan, December 14-16, 2009.
Available at: http://www.buyya.com/papers/HPCC-ISPAN2009-Keynote.pdf
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The GRIDS Lab has recently released a detailed report on our Aneka Cloud Computing software. Brief details are enclosed below. The full report is available at:
If you like to have access/explore Aneka software, pls download it from:
Title: Aneka: A Software Platform for .NET-based Cloud Computing
Authors: Christian Vecchiola, Xingchen Chu, and Rajkumar Buyya
Categories: cs.DC cs.CE cs.NI cs.OS cs.PL cs.SE
Comments: 30 pages, 10 figures
Report-no: GRIDS-TR-2009-4, Grid Computing and Distributed Systems Laboratory, The University of Melbourne, Australia, May 25, 2009.
ACM-class: C.1.4, C.2.4
Abstract: Aneka is a platform for deploying Clouds developing applications on top of it. It provides a runtime environment and a set of APIs that allow developers to build .NET applications that leverage their computation on either public or private clouds. One of the key features of Aneka is the ability of supporting multiple programming models that are ways of expressing the execution logic of applications by using specific abstractions. This is accomplished by creating a customizable and extensible service oriented runtime environment represented by a collection of software containers connected together. By leveraging on these architecture advanced services including resource reservation, persistence, storage management, security, and performance monitoring have been implemented. On top of this infrastructure different programming models can be plugged to provide support for different scenarios as demonstrated by the engineering, life science, and industry applications.
Christian Vecchiola, Xingchen Chu, and Rajkumar Buyya, Aneka: A Software Platform for .NET-based Cloud Computing, Technical Report, GRIDS-TR-2009-4, Grid Computing and Distributed Systems Laboratory, The University of Melbourne, Australia, May 25, 2009.