CARE Resource Broker (CRB)CARE Resource Broker (CRB)

Principal Investigator - CARE ProjectDr. S. Thamarai Selvi

Professor & DeanMadras Institute of Technology

Campus,Anna University, Chennai

stselvi@annauniv.edu,thamaraiselvis@gmail.com

Presented by G. Kannan

Senior Research AssociateCARE Project

Madras Institute of Technology Campus,

Anna University, Chennaikannan.gridlab@gmail.com

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Is a Grid Scheduler or Grid Metascheduler capable of

◦ Scheduling jobs to physical resources

◦ Creating virtual machines in a remote potential physical resource to meet the CPU requirement of an application

◦ Creating Virtual Cluster in a remote potential physical resource to meet application’s platform requirement

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On the fly creation of execution environment using appropriate VM images

Dynamically create grid/cluster environment by automating globus installation and configuration

Can create virtual machine and attach it to a existing cluster

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Application often requires number of CPUs that cannot be met by a single cluster◦ Create virtual machines to

meet the additional requirements of CPUs to execute the application

◦ Connect them to the selected cluster

Application often requires a completely different software environment that no cluster in the grid can provide◦ Create virtual clusters

dynamically, deploy grid middleware, deploy necessary OS and software, execute the application

Users

CRB

Resource A Resource N

…

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Controller takes decision on scheduling strategies, initiates appropriate services

to create VMs and Virtual Cluster,Selecting suitable resource for

application execution.

Monitors the status of physical and virtual resources, implements

necessary services for creating virtual machines and virtual clusters, monitors

application execution in it.

These are services implemented in every physical resource for creating

virtual clusters, VMs, and VM information aggregation

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GlobusVCS VMS CRB

VRM Scheduler

Action Manager

RequestHandler

MiidlewareLRMS

Host OS

VCS VMS

Guest OS Guest

OS

CN CN CN

Guest OS

Guest OS Guest

OS

Submits jobs

MiidlewareLRMS

Host OS

VCS VMS

Guest OS

Guest OS

CN CN CN

Guest OS

Guest OS

Guest OS

MiddlewareLRMS

Host OS

VCS VMS

Guest OS

Guest OS

Guest OS

Guest OS

Guest OS

Aggregates Resource information

Scheduler decides which physical resources to deploy Virtual resource

VRM maintains virtual resource information and initiates VCS and VMS to create virtual cluster and virtual machines in the remote physical resource

Invokes VCS with number of CPUs needed and other contexts

CN CN CN

CRB in Action

Middleware

Globus /Eucalyptus

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Virtual resources get x509 certificate from CRB service (CRB) and jobs are submitted to it through Globus

Xen based Host OS

VM

VCSVMS

Host Os

Xen based Host OS

VM

Xen based Host Os

VM

Xen based Host OS

VM

VCS selects potential compute nodes And boots Xen VM

It makes necessary configuration such as cluster configuration, NFS, Grid middleware, (if needed), LRMS configuration

GlobusVCS VMS

VRM Scheduler

Action Manager

RequestHandler

CRB service

Head Node of the selected cluster

Compute Nodes

At Head Node …

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M.I.T, Anna Univ

The resource brokering is purely depends on the resource ontology in which relationship between all concepts of Grid/Cloud domain is represented and established with the help of properties.

Resource Description – The descriptions should be added with resources for better discovery in a Grid/Cloud environment.

Resource Description Language (RDL) should follow the standards like Resource Description Framework (RDF) and Web Ontology Language (OWL) that has been used for Semantic web & Semantic Cloud as well.

Resource Discovery

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M.I.T, Anna Univ

The core component of the semantic component is Grid Resource Ontology template.

An ontology template is a domain specific ontology it provides hierarchy of concepts along with properties to define their characteristics.

Ontology is used for understanding the domain information. It describe the concepts in the domain and also relationships that grip between those concepts.

OWL (web ontology language) has been widely used for creating the ontology.

Semantic Description

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CA

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e B

roke

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ucal

yptu

s Clo

ud

Mid

dlew

are

Cloud Controller

Cloud Information Parser

Cloud Information Repository

CM

DA

Ada

ptor

Ser

vice

Cloud Information Updater

Semantic Discovery

Service

Semantic Knowledge Base

Cloud Monitoring and Discovery Service

(CMDS)

Request Handler Service

User Request

Response

Queuing & Scheduling

ServiceTo Action Manager Service

Cloud Information Aggregator Thread

Grid Middleware Adaptor Service

CRB with Cloud Monitoring and Discovery Service (CMDS)

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GROningen MAchine for Chemical Simulation (GROMACS) is a very powerful toolbox in modern molecular modeling.

It was originally developed at the University of Groningen, and it is mainly designed for testing of biochemical molecules like lipids, proteins and nucleic acids, which has lot of complex bonded interactions.

It is mainly used to understand the structure, dynamics and motion of individual atoms.

The two most commonly used methods are energy minimization and molecular dynamics that optimize the structure and simulate the natural motion of biological macromolecules.

It converts molecular coordinates from a Protein Data Bank (PDB) file into its internal format.

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The whole simulation process consists of seven steps as given below: Creation of topology files using Protein Data Bank (PDB) file Solvating the proteinEnergy Minimization Equilibration runPerforming MD simulationViewing Trajectory filesViewing MD simulation results

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Number of Nodes

Average Time Taken(Time In Minutes) in

Grid Resources

Average Time Taken(Time In Minutes) in

Virtual/CloudResources

10 35.4583 37.5277520 30.1833 32.1249530 24.6083 28.0249540 21.42495 24.67498

Supports JSDL specification for job submission. Provides a graphical user interface for job submission, monitoring and viewing

resource information. Semantic Description and Discovery of Grid and Cloud resources – solving

interoperability problem. Supports DAG, MPI and Batch jobs. Creation of virtual cluster formation with either PBS or SGE as local resource

manager in Grid as well as Cloud resources. Its capability to create virtual machines on the fly will also improve the scalability. This feature can also be applied to cloud resources while hosting a server

application in which one has to increase the hardware resources dynamically depending on the need.

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Service Level Agreement (SLA) Heuristic Scheduling Improving Scalability using P2P Overlay

Network.

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The authors sincerely thank the Ministry of Information & Communication Technology, Department of Information Technology, New Delhi, India for sponsoring Centre for Advanced Computing Research and Education (CARE).

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