gridsim-users — For general queries and feedbacks

Re: [GridSim-users] Multi-cluster simulation and co-allocation

[Marcos D. de A. <ass...@ac...>]

Hi Hector,

> The first is if GridSim is suitable to do multi-cluster simulation,
> considering that I need to co-allocate jobs, sharing resources from two or
> more clusters of the environment.

Yes, you can certainly use GridSim to simulate job scheduling across
multiple clusters. The latest version of GridSim (i.e. 5.0) comes with
some scheduling policies at the cluster level that might be useful to
you.

> And the second question is if GridSim supports the hability to assign the
> tasks of a job to a predefined allocation that I can pass to the simulator.
> For example, if I have a job that is composed by three tasks, I can tell
> GridSim to allocate these tasks to the machines manually, specifying it in a
> text file?

I am not quite sure if I understood what you need. I believe you can
customise one of the policies mentioned beforehand to read the
information from a file and assign jobs to the respective nodes in the
cluster.

Regards,

Marcos

[GridSim-users] Multi-cluster simulation and co-allocation

[Hector B. de F. <hec...@di...>]

Hello, my name is Hector Blanco, from the University of Lleida, in Spain,
and I'm doing a PhD in computer science, centered in multi-cluster job
scheduling.

Currently I have a working MIP model based on CPLEX/OPL, but I need to
compare it whit some other heuristics and algorithms.

Because of this, I decided to use a simulator, being GridSim my first
option. But I have some questions.

The first is if GridSim is suitable to do multi-cluster simulation,
considering that I need to co-allocate jobs, sharing resources from two or
more clusters of the environment.

And the second question is if GridSim supports the hability to assign the
tasks of a job to a predefined allocation that I can pass to the simulator.
For example, if I have a job that is composed by three tasks, I can tell
GridSim to allocate these tasks to the machines manually, specifying it in a
text file?

 

Thank you.

 

Hector Blanco.

[GridSim-users] Arrival Pattern and How to get All gridlets from different users

[Sameer S. C. <onl...@gm...>]

Hi Everyone

Can any one help me on the following problem.

I want to model the arrival of gridlets as poisson process and the
scheduling of these gridlets as batch mode mapping.

how to set the arrival time of gridlets as poisson process arrival and how
to set mapping event times.

another problem is how to get all gridlets from different users at the
mapping event time.

kindly reply.

-- 
Sameer

[GridSim-users] building tree model simulator

[Belal B. <bel...@ya...>]

hello,
 
i'm new member in the group 
i want help to building tree model simulator for grid system 
please answer me ,with my best wishes


      

[GridSim-users] no. of gridlet to resources

[I-Sha F. <mas...@gm...>]

hello,

same as innocent dibia in her email on july 2,
i also want to know how to get the number of gridlet ( belong to different
users) that send to resources during simulation.
have anyone work with the same case before?

thank you

Re: [GridSim-users] arrival patterns

[Libin S. <Lib...@in...>]

Hi all,

Can someone help me on this:

I want a list of gridlets to be submitted such that their arrivals form a poisson process...

I know there is gridlet.setsubmissiontime(clock) , which sets the submission time. Effectively, it's possible to generate a sequence of inter-arrival times according to some exponential distribution and set the arrival time for each gridlet. But this is rather tedious.

Alternatively, I can use GridSimHold(time t) to hold the user for some time t, where t~exp(lambda)

Is there a better way to do this?

Thanks in advance.

Geoffrey

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[GridSim-users] doubt about 'numUser' parameter in cloudsim

[Fei T. <ten...@gm...>]

Hi, all

I am using the cloudsim now. In the examples, the parameter numUser seems a
little strange.

in the gridsim, numUser describes the number of User Entities created.
however, in the cloudsim, the broker will work as the behavior of user. the
number of user/broker entities will be accounted according how many brokers
are created. So, numUser parameter doesn't make sense. for example, we will
get the same result with 3 brokers, no matter the numUser equals 1, 2, 3 or
4.

any suggestions? thanks in advance

Fei
-- 
Fei TENG
Applied Mathematics and Systems Laboratory
Ecole Centrale Paris, France
Email: fei...@ec...

[GridSim-users] query

[Sumathi N <sum...@gm...>]

when i run grid sim executable file it shows error like failed to load main
class manifest attribute from
c:\gridsimtoolkit-4.2 beta\jars\gridsim.jar. is there any more files to be
downloaded?

[GridSim-users] getting no. of gridlet assigned to a resource

[innocent d. <dib...@ya...>]

hello fellows

Please can anyone help with a code or Idea on how 
to get the number of gridlets assigned to any resource
during simulation 

I expect ur response soonest
thanks

Dibbydon


      

[GridSim-users] query

[Lata K M. <lat...@ya...>]

hello,
i am using j2sdk1.4.2 on windows xp with gridsim4.2 beta when i compile example1.java, i am getting 
cannot access gridsim.GridResource
bad classfile: c:\gridsimtoolkit-4.2beta\jars\gridsim.jar<gridsim/gridResource.class>
class file has wrong version 49.0 should be 48.0
please remove or make sure it appears in the correctsubdirof te claspath
private staatic GridResource createGridResource<>

pl. help me out

 


      

Re: [GridSim-users] how to generate code for huge numbers of users and resources?

[Libin S. <Lib...@in...>]

Hi All,

I am wondering if there is an easy way to code up large numbers of users and resources, say 100 users and 10000 resources with some different parameters.

I understand the visual modeler can handle this job easily, but the VM only supports gridsim v2._

How to deal with this situation in v4.2 beta?

Thanks in advance

Geoffrey

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notify the sender by e-mail and delete the original message. Further, you are not 
to copy, disclose, or distribute this e-mail or its contents to any other person and 
any such actions are unlawful. This e-mail may contain viruses. Infosys has taken 
every reasonable precaution to minimize this risk, but is not liable for any damage 
you may sustain as a result of any virus in this e-mail. You should carry out your 
own virus checks before opening the e-mail or attachment. Infosys reserves the 
right to monitor and review the content of all messages sent to or from this e-mail 
address. Messages sent to or from this e-mail address may be stored on the 
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[GridSim-users] Need Data Set

[MAHARAJAN .R <mah...@gm...>]

Hello,
I'm doing my research on grid scheduling algorithm, currently i need a data
set with the gridlets and their cost on various machines for my paper.
Can any one help me pl.
Or support me with another idea.

[GridSim-users] GridSim Toolkit for Research

[<jsh...@pe...>]

   Dear Sir
                 Hello ! I am a Masters student currently working on
my
research. I am implementing a scheduling algorithm in the GridSim
toolkit.
While going through the class files in gridsim and simjava2 and while
unbundling the jars, I realised that there are similar class files in
both
the jars (gridsim\eduni\simjava and simjava2\eduni\simjava). It also
seems that files
simjava2\eduni\simjava are slightly larger than the ones in
simjava2\eduni\simjava. Are the files in simjava2\eduni\simjava the
updated  ones? Could I just use the class files in
simjava2\eduni\simjava?

   If I was implementing a scheduling algorithm would I need to
unbundle the

   jar file? Please advise. I was hoping you could help me out so I
can progress further with my
  work.Thanking you in advance for your kind assistance.

   Sharmini

----------------------------------------------------------------
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[GridSim-users] I need your help on Gridsim

[innocent d. <dib...@ya...>]

Hello everyone,

can anyone help me with a simple code  on how to return the list resources attached to a RegionalGIS in GRIDSIM using the GISID

Thanks 



      

[GridSim-users] FLOW and PACKET network models

[Nigel S. <nig...@jc...>]

Hi,

I am seeking some clarification about the networking models in use within
GridSim 4.2beta. That is the NET_FLOW and the NET_PACKET.

I have read (and experienced) that the FLOW model is faster to execute, and
scales better for larger files. However, I would expect that both of these
models should be equivalent in other respects. However, in the tests which I
have done I've found this is not the case.

A simple example is submitting a Gridlet with a input size, s, and timing
the ACK. ie, timing how long it takes to send s bytes. The FLOW model gives
me the answer I expected, the PACKET model was a factor of 10 too long.
Neither scaled as expected either (ie, doubling/tripling the data size did
not increase the ACK time by these factors. This was all done on a simple 1
router network with no traffic.
1MB file across Bottleneck Bandwidth : 1.0E7 bits/s
FLOW = 0.86s, PACKET = 8.71s

The second, and main issue I had was using the FLOW model for non-Gridlet
traffic the simulated tranfer time drops to be the propagation delay alone,
regardless of the data size. ie, if you Datagrid example 3 and run it with
the PACKET model the simulation time is 182578.99051989397. If you convert
all the routers and links to FlowRouters and FlowLinks and set the FLOW
model, the simulation time becomes 7203.992519893901. Essentially because
all the data transfers are done using the CTLG_REPLICA_DELIVERY (?) packet
type.

So, are my above observations accurate? And if so, should I just use the
PACKET model for datagrid/non-Gridlet simulations?

I am working on the assumption here that the scaling issues are close enough
to realistic for comparing scheduling algorithms, although my code which
estimates transfer times based on InfoPackets is obviously shot.

Many thanks

Nigel Sim

[GridSim-users] Gridbroker

[innocent d. <dib...@ya...>]

Hi Fellows,


Does any one have a sample code of a gridbroker class or a broker class source code compatible with gridsim 4.1.
Dibbydon


      

Re: [GridSim-users] source code for simjava?

[Marcos D. de A. <ma...@cs...>]

Hi Fei,

the source code of SimJava 2 is not included in the GridSim  
distribution, only the .jar file. However, you can download the  
source code from:
http://www.inf.ed.ac.uk/research/isdd/admin/package?download=62

Kind regards,

Marcos


On 04/06/2009, at 4:01 AM, Fei TENG wrote:

> hi all
>
> I m a new user of gridsim. when i tried to conclude the flow chart  
> of the gridsim, i cant find the source codes for two packages,  
> eduni.simjava and eduni.simjava, which are in gridsim.jar.  I  
> download the source code of simjava.jar published in 1997. but they  
> cant match that in gridsim. who can give me some suggestions?  
> thanks in advance.
>
> yours
>
> Fei
> ---------------------------------------------------------------------- 
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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

[GridSim-users] source code for simjava?

[Fei T. <ten...@gm...>]

hi all

I m a new user of gridsim. when i tried to conclude the flow chart of the
gridsim, i cant find the source codes for two packages, eduni.simjava and
eduni.simjava, which are in gridsim.jar.  I download the source code of
simjava.jar published in 1997. but they cant match that in gridsim. who can
give me some suggestions? thanks in advance.

yours

Fei

[GridSim-users] how gridlet work parallel?

[mehdi s. <sar...@gm...>]

> hi,everyone
>
> i will gald if i would hear back.
> when i worked with gridlet i found that it is not like a thread.
>


> so i don't khnow how work with grildlet when job wants run parallel.
>
for example when i dispaching grildlet and i am waiting to recieve them if
it doesn't work like thread job(gridlet)can't work independent.


>
>
> Best Regards
>
>
>

[GridSim-users] how i can run thw example4 of datagrid?

[mehdi s. <sar...@gm...>]

hi,everyone

i will gald if i would hear back.
i cannot run exapmle 4 of datagrid.
when i run this example ,i saw the message below :

Starting data grid simulation ...
Usage: java Main parameter_file

i think simulator wait to read from files but can't.
i can run other example but this example is a bit different because of some
parameter files that have.

Best Regards

Re: [GridSim-users] Gridsim-users Digest, Vol 97, Issue 1

[mehdi s. <sar...@gm...>]

to whom it may concern

most of the time i use the datagrid package from gridsim.(
* DataGrid modelling capabilities (gridsim.datagrid package).
)
i will really glad if i can help your group to extend this part of gridsim



yours sincerly

[GridSim-users] replay of your request

[mehdi s. <sar...@gm...>]

to whom it may concern

most of the time i use the datagrid package from gridsim.(
* DataGrid modelling capabilities (gridsim.datagrid package).
)
i will really glad if i can help your group to extend this part of gridsim



yours sincerly

[GridSim-users] Features utilised by GridSim users

[Marcos D. de A. <ma...@cs...>]

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

[GridSim-users] Support for mobile ah doc grids

[Sayed C. S. <chh...@ya...>]

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


      

[GridSim-users] submitting a program as gridlet to resources....

[komagal m. <kom...@ya...>]

hello everyone.......
               Im using a algorithm in my project to calculate a value......

               In the project i parallelise the algorithm using java threads......

               Now my prob is i have to make these threads as a gridlet and submitted to a     
               resource..

               From there i have to get the result value.....

               my another doubt is can we have two gridsim.startsimulation ie one for   calculating the algorithm and the other is to submit my final jobs......,




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