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From: SANA M. <dua...@ho...> - 2010-04-07 06:01:57
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Hi everyone, i am doing a grid computing project, currently i am facing following problems, my code is attached here with the mail. firstly, i want to pause gridlets to take a checkpoint of their executed portion but the state returned is the total length of the gridlets. how and when should i pause these gridlets to take the checkpoint? secondly, i want to replicate that executed portion on some nodes called checkpoint servers for storage, i studied data grid exemples but the replication done there is of file while i want to replicate data and if i replicate it as a gridlet then the receiving node will start processing on it, there is no built in method for checkpoint replication, can anyone suggest me the way to solve this problem? thirdly, according to my system model grid is constructed of multiple clusters where each cluster (called resource in GridSim) have more than one checkpoint servers and i have to replicate the checkpoint on all of the checkpoint servers, now my question is that can we do such thing in simulation? i mean we define processing entities in resources that process the jobs, how can i just store the data on processing entities? or should i create just one linkedlist for a resource to do the job. looking forward for your kind respons. best regards Sana Malik _________________________________________________________________ Hotmail: Trusted email with Microsoft’s powerful SPAM protection. https://signup.live.com/signup.aspx?id=60969 |
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From: Marcos D. de A. <ma...@cs...> - 2010-04-04 16:28:08
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Hi Sana, First, you don't need to call me sir; please use only my first name, Marcos. Second, regarding you question, GridSim does not provide features to simulate the distributed checkpointing you need. It is possible to implement that, but I believe it would not be trivial. Some allocation policies allow you to pause the execution of Gridlets. For example, please have a loot at the SpaceShared policy. The pause method can provide the basic framework you need to implement the more sophisticated features you require. About your code, you can post excerpts of it in the GridSim mailing list along with your questions. In this way, the current GridSim developers would be able to help you. Regards, Marcos On 2 April 2010 10:14, SANA MALIK <dua...@ho...> wrote: > Hello Sir, > > i found you to be very helpful on sourceForge. so sending you my problem > with great hope for help. > > i am a research student and have some pproblems regarding GridSim, will you > please help me? > > my objective is to store checkpoint on multiple storage devices that reside > in different places in Grid. by checkpoint i mean the executed portion of > the job that is taken after some time the job has been started. now the > confussion is, whether there is any specific method to replicate checkpoints > in gridsim or should i define my own method to do so. i am studying data > grid examples where file replication is done but still i am confused about > the problem because i want to replicate executed portion of the job not a > file. > > should i send you my code for analysis? > > looking forward for your quick response. > > best regards > > Sana Malik > > > > > > ________________________________ > > > > > ________________________________ > > > ________________________________ > Hotmail: Trusted email with Microsoft’s powerful SPAM protection. Sign up > now. > > ________________________________ > Hotmail: Trusted email with powerful SPAM protection. Sign up now. > > ________________________________ > Hotmail: Trusted email with powerful SPAM protection. Sign up now. > > ________________________________ > Hotmail: Trusted email with Microsoft’s powerful SPAM protection. Sign up > now. |
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From: SANA M. <dua...@ho...> - 2010-04-02 05:33:30
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hi, i am a research student, my objective is to store checkpoint on multiple storage devices that reside in different places in Grid. by checkpoint i mean the executed portion of the job that is taken after some time the job has been started. now the confussion is, whether there is any specific method to replicate checkpoints in gridsim or should i define my own method to do so. i am studying data grid examples where file replication is done but still i am confused about the problem because i want to replicate executed portion of the job not a file. looking forward for your quick response. best regards Sana Malik Hotmail: Trusted email with Microsoft’s powerful SPAM protection. Sign up now. _________________________________________________________________ Hotmail: Trusted email with powerful SPAM protection. https://signup.live.com/signup.aspx?id=60969 |
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From: Agustín C. H. <ag...@ds...> - 2010-03-22 08:00:32
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Hi Jiang, lijiang wrote: > hello, everyone, > > I have read the example code of simulation with failure. In the > example, class "HyperExponential" is used to produce the random of > failure-number,failure-begin-time and failure-length. And it seems > that the failure on a resource happens only one time. Yes, u r right. > In my Project I want to do this job: On a certain resource the > failures should be produced many times with a certain percent. For > example: On a resource "Res1" the failures should be stochastic > produced many times during 100 minutes. And the sum of > failure-intervals should be 5% of the whole time-interval. It means > that the sum of the failures on "Res1" should be 5 minutes. > > Question1: > In GridSim can we let many failures produced on a certain resource? > When yes, how? On RegionalGISWithFailure class, check what is done on the event of a failure. Just do the same everytime u want a failure. Essentially, the regGisWithFailure class sends an GridSimTags.GRIDRESOURCE_FAILURE event to itself in order to start failing resources. On the reception of this event, it is decided which resource will fail, when and how long the failure will be. If u want each res to fail multiple times, u have to modify the way how RegionalGISWithFailure behaves on the reception of this event. > > Question2: > Can class "HyperExponential" produce this kind of radom failures? When > not, is there any other java-class that can do it? "HyperExponential" is only a way to generate random numbers, what u use them for is up to u. ut I'd say u'll have to implement it yourself. Regards, Agustin > > Thanks > > regards > > Jiang Li > > ------------------------------------------------------------------------ > Hotmail：Microsoft 强大的垃圾邮件防护技术，为您提供可靠的电子邮件保 > 障。 立即注册。 <https://signup.live.com/signup.aspx?id=60969> > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------------ > Download Intel® Parallel Studio Eval > Try the new software tools for yourself. Speed compiling, find bugs > proactively, and fine-tune applications for parallel performance. > See why Intel Parallel Studio got high marks during beta. > http://p.sf.net/sfu/intel-sw-dev > ------------------------------------------------------------------------ > > _______________________________________________ > Gridsim-users mailing list > Gri...@li... > https://lists.sourceforge.net/lists/listinfo/gridsim-users > -- Dr. Agustin Caminero Assistant Professor Dept. of Communication and Control Systems The National University of Distance Education Madrid. Spain E-Mail:acc...@sc... Phone: +34 913 989 468 http://www.uned.es |
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From: lijiang <riv...@ho...> - 2010-03-20 20:35:03
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hello, everyone, I have read the example code of simulation with failure. In the example, class "HyperExponential" is used to produce the random of failure-number,failure-begin-time and failure-length. And it seems that the failure on a resource happens only one time.In my Project I want to do this job: On a certain resource the failures should be produced many times with a certain percent. For example: On a resource "Res1" the failures should be stochastic produced many times during 100 minutes. And the sum of failure-intervals should be 5% of the whole time-interval. It means that the sum of the failures on "Res1" should be 5 minutes. Question1:In GridSim can we let many failures produced on a certain resource? When yes, how? Question2:Can class "HyperExponential" produce this kind of radom failures? When not, is there any other java-class that can do it? Thanks regards Jiang Li _________________________________________________________________ Hotmail：Microsoft 强大的垃圾邮件防护技术，为您提供可靠的电子邮件保障。 https://signup.live.com/signup.aspx?id=60969 |
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From: Bakhta M. <bme...@ya...> - 2010-03-18 17:02:38
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Hallo;
Excuse me for my bad english;
I have a project of "Fault tolérance in datagrid " and i want to use GridSim but ;
is it possible to implement an extension program to do the clustering ( because in my project i start with a random network and i use a program to do the clustering - I transform an unstructured network to structured network-
is it possible to do that with GridSim and how ?
Best regards,
M.SARA
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From: Alex G. <fro...@ya...> - 2010-03-13 08:21:54
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Hello,
when running the RegionalGIS example (example.regionalGIS) from the package examples if i change the number of Regional GIS to 1 (i.e only one RegionalGIS) i get the following exceptions:
///////////////////////////////////
Sim_system: No more future events
Gathering simulation data.
User_0: number of Global Resource = 0.
///////////////////////////////////
User_0: number of Global AR Resource = 0.
///////////////////////////////////
User_0: trying to ping Regional_GIS_0
-------- User_0 ----------------
null
-------- User_0 ----------------
User_0:%%%% Exiting body() at time 31.620026666666696
Exception in thread "router3" java.lang.NullPointerException
at gridsim.net.RIPRouter.dequeue(Unknown Source)
at gridsim.net.RIPRouter.processInternalEvent(Unknown Source)
at gridsim.net.RIPRouter.processEvent(Unknown Source)
at gridsim.net.Router.body(Unknown Source)
at eduni.simjava.Sim_entity.run(Sim_entity.java:605)
Exception in thread "router1" java.lang.NullPointerException
at gridsim.net.RIPRouter.dequeue(Unknown Source)
at gridsim.net.RIPRouter.processInternalEvent(Unknown Source)
at gridsim.net.RIPRouter.processEvent(Unknown Source)
at gridsim.net.Router.body(Unknown Source)
at eduni.simjava.Sim_entity.run(Sim_entity.java:605)
Exception in thread "router2" java.lang.NullPointerException
at gridsim.net.RIPRouter.dequeue(Unknown Source)
at gridsim.net.RIPRouter.processInternalEvent(Unknown Source)
at gridsim.net.RIPRouter.processEvent(Unknown Source)
at gridsim.net.Router.body(Unknown Source)
at eduni.simjava.Sim_entity.run(Sim_entity.java:605)
Any explanations?
Best regards,
Alex
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From: Nawfal <naw...@ho...> - 2010-02-24 12:09:23
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Dear all, My name is Nawfal. I am working on cloudsim to implement my scenario of job scheduling under cloud computing environment. I know this forum dedicated to gridsim developer but I hope I can find a solution to my simple problem. Using the cloudsim, I could build 5 datacenters, each one has a storage. I need to know how can I copy (I.e. make replica) from one datacenter to another and taking the network bandwidth in consideration?. Also, I would like to know if anyone has any reference for cloudsim because I have just its manual. Thanks a lot for your help in advance. Yours Truly, Nawfal. |
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From: Marcos D. de A. <ass...@ac...> - 2010-02-14 19:07:57
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Dear Mayuri Mehta, yes, you can use GridSim for that purpose. You need to model the environment you consider and implement the load balancing mechanism. GridSim will provide you with a framework to simulate and evaluate your load balancing techniques. Regards, Marcos On 9 February 2010 18:04, Mayuri Mehta <may...@gm...> wrote: > Hello everyone, > I am a research student and want to know that can i use gridsim for > simulation of load balancing algorithm in distributed system? > ------------------------------------------------------------------------------ > The Planet: dedicated and managed hosting, cloud storage, colocation > Stay online with enterprise data centers and the best network in the > business > Choose flexible plans and management services without long-term contracts > Personal 24x7 support from experience hosting pros just a phone call away. > http://p.sf.net/sfu/theplanet-com > _______________________________________________ > Gridsim-users mailing list > Gri...@li... > https://lists.sourceforge.net/lists/listinfo/gridsim-users > > |
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From: Mayuri M. <may...@gm...> - 2010-02-09 17:04:32
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Hello everyone, I am a research student and want to know that *can i use gridsim for simulation of load balancing algorithm in distributed system?* |
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From: vishnu s. <vis...@gm...> - 2010-02-01 17:40:55
|
hi,
i m M.Tech student working with grid computing, i m using gridsim
simulatoin for simulate the algorithm of my grid computing. i m getting a
problem to schedule (send) the gridlet(job) to resource.Means
1. Since GridSim package uses multi-threaded environment the request for
list of
Grid Resources might arrive earlier before one or more Grid Resource
Entities
manage to register themselves to GridInformationService (GIS) entity.
Therefore we wait for some micro seconds using the Hold method of GridSim
Class.
2. The GIS will return only the Grid Resource IDs.
3. Using the ID obtained in step 2 retrieve Resource Characteristics from
Resource Entity.
super.send(resourceID,
GridSimTags.SCHEDULE_NOW,GridSimTags.RESOURCE_CHARACTERISTICS, this.ID_);
resChar = (ResourceCharacteristics) super.receiveEventObject();
resourceName = resChar.getResourceName();
So, i m getting a problem in step 1and 2. how we take the resource_id from
GIS>plz help me sir,and give program code as well as possible.
thanks.
vishnukant soni
kiit, bhubneswar
vis...@gm...
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From: Marcos D. de A. <mar...@gm...> - 2010-01-18 10:19:42
|
Use: send(int entityID, double delay, int gridSimTag, Object data) implemented by GridSimCore If you do not want to utilise the network support. Or use: send(Sim_port destPort, double delay, int gridSimTag, Object data) implemented by GridSimCore If you intent to use the network. attiqa rehman wrote: > helloto all , > my name is attiqa. I want to send a object name job from a user to a broker. Both the user and Broker are gridsim entiies and are linked via a dorect link say "l". How I can send this data with and without packtizing. > Looking for a quick response from ur side and thanking u in advance > Attiqa > > > > > ________________________________ > > > New Email addresses available on Yahoo! > Get the Email name you've always wanted on the new @ymail and @rocketmail. > Hurry before someone else does! > http://mail.promotions.yahoo.com/newdomains/aa/ > ------------------------------------------------------------------------------ > Throughout its 18-year history, RSA Conference consistently attracts the > world's best and brightest in the field, creating opportunities for Conference > attendees to learn about information security's most important issues through > interactions with peers, luminaries and emerging and established companies. > http://p.sf.net/sfu/rsaconf-dev2dev > _______________________________________________ > Gridsim-developers mailing list > Gri...@li... > https://lists.sourceforge.net/lists/listinfo/gridsim-developers > |
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From: attiqa r. <att...@ya...> - 2010-01-12 15:24:01
|
helloto all ,
my name is attiqa. I want to send a object name job from a user to a broker. Both the user and Broker are gridsim entiies and are linked via a dorect link say "l". How I can send this data with and without packtizing.
Looking for a quick response from ur side and thanking u in advance
Attiqa
________________________________
New Email addresses available on Yahoo!
Get the Email name you've always wanted on the new @ymail and @rocketmail.
Hurry before someone else does!
http://mail.promotions.yahoo.com/newdomains/aa/
|
|
From: zahra f. <z.f...@ya...> - 2009-11-21 12:12:01
|
Hi
How can I simulate the network link failures by GridSim?
For example when a link between a router and a regional GIS
Are failed how can I understand this link was failed?
And connected resources to this GIS are not available?
Thanks
|
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From: JAYA S. <sud...@ya...> - 2009-10-28 17:24:34
|
Hello Sir/Madam,
I am a Phd Scholar. My name is Jayasudha. Shall I post my doubts and queries regarding GridSim to this mail id?
Kindly, regard this mail as a Test mail !!
Please respond........
Regards
Jayasudha
Add whatever you love to the Yahoo! India homepage. Try now! http://in.yahoo.com/trynew
|
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From: JAYA S. <sud...@ya...> - 2009-10-28 17:20:37
|
Hello Sir/Madam,
I am a Phd Scholar. My name is SudhaSenthil. Please regard this mail as a test mail. Shall I post my doubts (queries) to this mail Id? Can you clarify my doubts? Kindly, respond to this mail...........
Regards
SudhaSenthil
Keep up with people you care about with Yahoo! India Mail. Learn how. http://in.overview.mail.yahoo.com/connectmore
|
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From: Roohollah G. <866...@ee...> - 2009-10-12 12:44:32
|
In the name of GOD, the Merciful Hello Dear Friends, I have some problems about gridsim. I hope there were someone to help me: 1. What’s the “seed”? And what is “11L*13*17*19*23+1” that “seed” was equaled to? 2. How can I set time and budget constraints for gridlets? 3. How can I define time distribution for gridlets, e.g. Poisson distribution arrival time for receiving gridlets? 4. What’s the difference between “length” and “file_size” for gridlets? 5. What are the dimensions of “length”, “file_size” and “output_size”? Are them in Megabytes, Kilobytes or else? 6. What’s the meaning of “peakLoad”, “offPeakLoad” and “holidayLoad”? Are them the exact load of these times for all days or these are average load? How should I set them? 7. How about “Holidays”? How can I set them? Should I set them as date like 9/2/2010 or in other way? Sincerely Rouhollah Golmohammadi |
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From: Roohollah G. G. <rgo...@gm...> - 2009-10-10 07:49:54
|
In the name of GOD, the Merciful Hello Dear Friends, I have some problems about gridsim. I hope there were someone to help me: 1. What’s the “seed”? And what is “11L*13*17*19*23+1” that “seed” was equaled to? 2. How can I set time and budget constraints for gridlets? 3. How can I define time distribution for gridlets, e.g. Poisson distribution arrival time for receiving gridlets? 4. What’s the difference between “length” and “file_size” for gridlets? 5. What are the dimensions of “length”, “file_size” and “output_size”? Are them in Megabytes, Kilobytes or else? 6. What’s the meaning of “peakLoad”, “offPeakLoad” and “holidayLoad”? Are them the exact load of these times for all days or these are average load? How should I set them? 7. How about “Holidays”? How can I set them? Should I set them as date like 9/2/2010 or in other way? Sincerely Rouhollah Golmohammadi |
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From: Alex G. <fro...@ya...> - 2009-08-13 09:40:31
|
Hello everyone,
I'm a PhD student from Romania and I'm trying to build my own framework for some experimental studies.
I'm trying to build a flow which is basically User -> Provider (this is just to keep things simple).
The user is a parametrized object that can generate Gridlets based on some distribution.
I
wish to do the same on the Provider side i.e. : Provider should act as
a resource pool. Since I'm quite lazy and I'm trying to do a
statistical study as well I wish to generate the Resources (based on
distributions for number of machines, no of pes, etc.).
But since
there is no common interface for all resources this would mean either
to do my own common interface/abstract class and then do a wrapper for
each resource (ARGridResource, GridResource and
GridResourceWithFailure), either to work just with one type of resource
or to add to the gridsim toolkit an interface/abstract class
AbstractResource that is to become the base for all resources.
The questions are:
Is
this feasible and a good design pattern to treat the resources
uniformly? What would be the common methods that all resources should
share? (setRegionalGIS() would be my suggestion for start).
Best regards,
Alex
|
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From: Marcos D. de A. <ma...@cs...> - 2009-05-08 05:30:48
|
Dear GridSim users, As we are in the process of releasing the next version of GridSim, I would like to hear from you, users of GridSim, about the existing features you are currently using. In this way, I would appreciate if you could spare some time to e- mail me with a short list of features you utilise. You can use the list below as an example: * Use of advance reservation features (gridsim package). * Auction framework (gridsim.auction). * DataGrid modelling capabilities (gridsim.datagrid package). * Modelling of network topologies (gridsim.net): + Using the packet abstraction for network. + Using the flow model. * Modelling the behaviour of resource failures (gridsim.resFailure package). * Use of specific features of SimJava2 simulation framework. I appreciate your time and effort in answering my questions, Marcos Marcos Dias de Assuncao Grid Computing and Distributed Systems (GRIDS) Laboratory Department of Computer Science and Software Engineering The University of Melbourne, Australia Email: ma...@cs... ------------- "The government should create, issue, and circulate all the currency. Creating and issuing money is the supreme prerogative of government and it's greatest creative opportunity. Adopting these principles will save the taxpayers immense sums of interest and money will cease to be the master and become the servant of humanity." Abraham Lincoln |
|
From: Sayed C. S. <chh...@ya...> - 2009-04-27 01:49:52
|
Hello Everyone,
My name is Shah and i am working on Mobile Ad Hoc Computational Grids at Internet Computing Lab, Korea University, Seoul, South Korea. I like to evaluate the performance of job scheduling algorithm for mobile ad hoc computational grid and looking for appropriate simulator.
I would like to ask that is there any support for mobile ad hoc networks in GridSim? Before exploring GridSim in detail i would like to confirm the required support soo that i can plan accordingly.
I will apprecaite your kind response in this regard.
_______________________________________
Regards,
Sayed Chhattan Shah
Research Fellow
Internet Computing Research Lab
Department of Computer and Radio Communications
Engineering , Korea University, Seoul , South Korea
Email sh...@il...
Cell No 0082 10 7217 7860
Office 0082 02 3290 3568
Fax 0082 02 927 3797
|
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From: Vaibhav A. <vai...@gm...> - 2009-04-19 10:56:28
|
I am Vaibhav Arora, an undergraduate student of Computer Science in National institute of Technology, Trichy, India and am working upon an extension to a existing scheduling algorithm in Grid environment. I am working with grid sim.I have a arcitecture in which I have sites and each sites are machines ,both are grid sim entites. I have a probelm as in I have a entity which doing some work in a loop but there may be some request coming from some other entity while it executin the loop.Than I want the task to care of event.How can we take care of this in grid sim. Analogical condition is that a person is doing some work and there is knock on the door and he then services this event. I cant wait for the event in a loop as it may or may not happen. How to do this in gridsim?? I will be thankful for any replies. |
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From: Marcos D. de A. <ma...@cs...> - 2009-04-16 07:13:14
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Hi, ClodSim enables modelling and simulation of Cloud Computing resources. For more details and examples please check: http:// www.gridbus.org/cloudsim/ Regards, Marcos On 08/04/2009, at 1:27 PM, nn hust wrote: > Hi,If I want to do some cloud computing simulation which in fact is > related > to some distributed algorithms simulation,so if the gridsim can be > used? Do > you have some resourse or example about the cloud computing algorithm > simulation using the gridsim ? > Thanks. > ---------------------------------------------------------------------- > -------- > This SF.net email is sponsored by: > High Quality Requirements in a Collaborative Environment. > Download a free trial of Rational Requirements Composer Now! > http://p.sf.net/sfu/www-ibm-com > _______________________________________________ > Gridsim-developers mailing list > Gri...@li... > https://lists.sourceforge.net/lists/listinfo/gridsim-developers Marcos Dias de Assuncao Grid Computing and Distributed Systems (GRIDS) Laboratory Department of Computer Science and Software Engineering The University of Melbourne, Australia Email: ma...@cs... ------------- "The government should create, issue, and circulate all the currency. Creating and issuing money is the supreme prerogative of government and it's greatest creative opportunity. Adopting these principles will save the taxpayers immense sums of interest and money will cease to be the master and become the servant of humanity." Abraham Lincoln |
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From: nn h. <nzj...@gm...> - 2009-04-08 03:27:41
|
Hi,If I want to do some cloud computing simulation which in fact is related to some distributed algorithms simulation,so if the gridsim can be used? Do you have some resourse or example about the cloud computing algorithm simulation using the gridsim ? Thanks. |
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From: ye <hua...@gm...> - 2009-03-19 22:25:01
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Hi, Dario: Based on your requirement, here is some information may interest you. Currently, my group is working on a project named "SmartGRID" ( http://diuf.unifr.ch/pai/wiki/doku.php/research:smartgrid), which aims at supporting grid resource management upon swarm intelligent algorithm based resource discovery. On one hand, my colleague Amos Brocco is response for providing resource discovery functionality using Ant Colony. He implemented his own program to test diverse algorithms on his part. http://diuf.unifr.ch/pai/wiki/doku.php/research:smartgrid:ssl On the other hand, I am working on grid scheduling using GridSim. http://gridgroup.tic.hefr.ch/smartgrid Finally, a socket based package has been implemented to mediate the communication between ant-based resource discovery and grid scheduling. Unfortunately, we haven't decided whether (or how much) to publish our implementation before our ph.d thesis is finished so far, because we are a small group, and the implementation is not completely ready for third part use yet; however, if you are interested and prepared, i don't see any problem to make kinds of research collaboration in this research domain. You can contact either Amos (amos.brocco [at] unifr.ch) or me (ye.huang [at] unifr.ch), depending on your main interest field. Regards ye Huang Dept of Informatics, University of Fribourg, Switzerland On Thu, Mar 19, 2009 at 9:23 PM, Dario <da...@gm...> wrote: > Hi all! I'm Dario, I just subscribed in this Mailing lists. Few time ago > I started to make some research regarding gridsim. I would like to start > a work regarding gridsim, in particular I would like to implement a new > algorithm for resource discovery and path selection in gridsim inspired > on ant colony. > Do you think that it could be implemented? do you have any tips? > Many thanks > Dario > > > ------------------------------------------------------------------------------ > Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are > powering Web 2.0 with engaging, cross-platform capabilities. Quickly and > easily build your RIAs with Flex Builder, the Eclipse(TM)based development > software that enables intelligent coding and step-through debugging. > Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com > _______________________________________________ > Gridsim-developers mailing list > Gri...@li... > https://lists.sourceforge.net/lists/listinfo/gridsim-developers > -- Ye Huang, Department of Informatics University of Fribourg / Pérolles 2 - Bld de Pérolles 90 1700 Fribourg, Switzerland e-mail: ye....@he..., ye....@un... http://diuf.unifr.ch/people/huangy/ Office: +41 26 429 65 95 |
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