Commit 6ef9f1ed authored by rodrigo.calheiros's avatar rodrigo.calheiros

Promotion documentation for CloudSim 3.0 added.

parent 4f25a01a
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Changes from CloudSim 2.1 to CloudSim 3.0
-----------------------------------------
WHAT'S NEW
----------
- NEW VM SCHEDULER. VmSchedulerTimeSharedOverSubscription models a scheduler that allows unbounded number of
VMS to be deployed in a single VM, regardless its requirements in terms of number of MIPS. Notice that this
was the behaviour of VmSchedulerTimeShared in CloudSim 1.0 Beta, but this behaviour had changed in
CloudSim 2.0 to accommodate requests with specific amount of MIPS.
- NEW DATACENTER NETWORK MODEL. A internal network model has been added to CloudSim 3.0. It supports definition
of switches connecting hosts in arbitrary network topologies. New Vm classes and Cloudlet classes were added to
take advantage of this feature without breaking compatibility of older code. This new feature also enables
modelling of message-passing applications. They are included in the package 'network.datacenter'.
- NEW POWER MODELS. 3 power models of IBM servers using the data from SPECpower were added to the power package.
They are PowerModelSpecPowerIbmX3250XeonX3480, PowerModelSpecPowerIbmX3550XeonX5670, and
PowerModelSpecPowerIbmX3550XeonX5675.
- SUPPORT FOR EXTERNAL WORKLOADS. External workloads written in the Standard Workload Format (SWF, from the
Parallel Workload Archive) can be loaded and read by CloudSim. Relevant classes are WorkloadModel and
WorkloadFileReader ('util' package).
- SUPPORT FOR USER-DEFINED END OF SIMULATION. Users are now able to specify a given event that causes the simulaton
to finish. We thanks Gaston Keller for developing this new feature.
REMOVED CLASSES
---------------
- CloudCoordinator
- Sensor
- CloudCoordinator
- PowerPe
- Power.PeList
API CHANGES
-----------
- CloudSim.terminateSimulation(long time) was changed to CloudSim.terminateSimulation(double time), to comply
with clock field of CloudSim class.
- PowerModel was moved from PowerPe to PowerHost
BUGFIXES AND IMPROVEMENTS
-------------------------
- Fixed issue 20: HostDynamicWorkload.updateVmsProcessing() throws NullPointerException.
- Fixed issue 19: CloudSimTags class should be abstract, not final.
- Fixed issue 17: "Something is wrong, the VM can's be restored" should be an Exception.
- Fixed issue 16: cloudletsSubmitted in DatacenterBroker should be protected, not private.
- Fixed issue 15: Simulation failed by the RAM where it should not fail.
- Fixed issue 14: Rounding problem in VMSchedulerTimeShared.
- Fixed issue 13: Output error when setDisableMigrations is set to true.
- Fixed issue 12: Dynamically created space-shared VMs fail to process cloudlets.
- Fixed issue 11: Wrong sharing of MIs among VMs by VmSchedulerTimeShared.
- Fixed issue 10: Access modifier of DatacenterBroker::finishExecution().
- Fixed issue 9: Access modifier of DatacenterBroker::cloudletsSubmitted.
- Fixed issue 7: Problem in manifests of Maven-generated jar files.
- Fixed issue 5: Abrupt termination of the simulation caused by VmAllocationPolicySimple.
- Fixed issue 4: Network examples do not load topology file.
- Fixed issue 2: Turn the 'future' queue of CloudSim class protected.
- Fixed issue 1: VM is created without check on host's storage capacity.
- The power package and corresponding examples were heavily updated, as well as new PlanetLab workload data were added.
- Fix in Datacenter: one initial update step was been skipped, what caused malfunctions in the schedulers.
- Fixed issue affecting all CloudletSchedulers: if updated was less then 1, due to a small timespam, processing was
never updated, because it was always rounded to 0.
- Datacenter: Fixed problem with very short intervals between events.
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Changes from CloudSim 2.0 to CloudSim 2.1 Changes from CloudSim 2.0 to CloudSim 2.1
----------------------------------------- -----------------------------------------
...@@ -9,7 +82,7 @@ Changes from CloudSim 2.0 to CloudSim 2.1 ...@@ -9,7 +82,7 @@ Changes from CloudSim 2.0 to CloudSim 2.1
- The VmSchedulerTimeSharedWithPriority has been removed as well as the priority field from the - The VmSchedulerTimeSharedWithPriority has been removed as well as the priority field from the
Vm class. Users can have the same functionality by using the VmSchedulerTimeShared class and Vm class. Users can have the same functionality by using the VmSchedulerTimeShared class and
setting the MIPS requirements for VMs. See examples 2 and 3. setting the MIPS requirements for VMs. See examples 2 and 3.
- Bug fixes, refactoring and removing obsolete code. - Bug fixes, refactoring and removal of obsolete code.
---------------------------------------------- ----------------------------------------------
......
...@@ -77,4 +77,17 @@ Usage: ...@@ -77,4 +77,17 @@ Usage:
Note: Note:
* You need to set up PATH for ant in Windows and/or Unix. * You need to set up PATH for ant in Windows and/or Unix.
7. Downloading and using external jars
---------------------------------------
Utilization of the power package (for energy modelling) requires the Michael Thomas
Flanagan's Java Scientific Library. This library can be downloaded from
http://www.ee.ucl.ac.uk/~mflanaga/java/
Please, make sure that, by using such library, you are respecting the terms of use
defined by the software's author.
Cloudsim Project to Release CloudSim Toolkit 2.0 Cloudsim Project to Release CloudSim Toolkit 3.0
The Cloudbus Project at The University of Melbourne, Australia along with collaborators The Cloudbus Project at The University of Melbourne, Australia is proud to announce the
from the High Performance Lab (LAD) at Pontifical Catholic University of Rio Grande do Sul release of the new version of its Cloud simulation software, the CloudSim.
(PUCRS), Porto Alegre, Brazil is proud to announce the release of the new version of its
Cloud simulation software, the CloudSim.
One year has passed since CloudSim beta was released. Since then, Cloud computing has gained One year has passed since last version of CloudSim was released. Cloud computing now is
more visibility, and a plenty of new projects, both in academia and in the industry, emerged. mainstream, and has been heavily adopted by different industries. It is also omnipresent in
To help developers of such projects to evaluate new strategies and ideas before actual conferences and journals from diverse fields such as high performance computing, grid computing,
development, CloudSim 2.0 contains support for model and simulation of hot topics in Cloud distributed systems, operating systems, software engineering, databases and so on. CloudSim has
Computing, including green/power-aware Cloud Computing and federated Cloud Computing. been present in publications in all the above fields.
At the same time new features were added, major improvements in simulation core allowed enhanced To help in further developments in the field of Cloud computing regardless the main area of
scalability and performance of simulations and insertion and removal of simulation entities application, new features and improvements were added to CloudSim 3.0. Having the project
during simulation execution. It increases considerably scenarios that may be addressed in hosted in Google code allowed us to have an enhanced feedback from users, via issue tracking
simulations, what we hope will contribute to a wider adoption of the tool by the research and group discussion. Based on this feedback, we could identify bugs, concepts that where being
community. misinterpreted by users and features of little significance and complexity. In response to this
feedback, we fixed all the identified bugs, clarified confusing aspects of the tool, and removed
features that were proven to be unpopular with users and just were making the APIs confusing.
These improvements were possible due to extensive support from the Cloud Computing research This version of CloudSim brings enhanced modelling of power-aware and energy efficient Cloud
community around the world, which used CloudSim, appointed bugs, and provided us feedback on computing, and also a new package allowing modelling of internal data center topologies and
new features they would like to have in future versions the toolkit. Community is invited to message-passing applications.
keep contribution to CloudSim.
We encourage community to keep collaborating with us by appointing bugs, providing us feedback on
new features they would like to have in future versions the toolkit, and also developing their
own extension packages, which we will be happy in promoting in the project homepage. We will also
be happy in listing in our homepage scientific peer-reviewed papers whose results were obtained
with CloudSim.
As in its previous version, all components developed as part of the CloudSim Toolkit are open
source released under the LGPL license to encourage innovation and pass full freedom to our users.
As in its previous version, all components developed as part of the CloudSim Toolkit are released We would like to thanks all the support we have received from users all around the world. Your
as "open source" under the GPL license to encourage innovation and pass full freedom to our users. contribution in finding and reporting bugs, proposing (and developing) new features, and even in
using CloudSim has been paramount in the success of the project.
To download the CloudSim software, please visit the Cloudbus Project web site at To download the CloudSim software, please visit the Cloudbus Project web site at
http://www.cloudbus.org/cloudsim/ http://www.cloudbus.org/cloudsim/
The CloudSim Team The CloudSim Team
Melbourne, May 2010 Melbourne, January 2012
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