transparent grid enablement using trap/j by luis atencio & tatiana soldo

Transparent Grid Enablement

Using TRAP/J

By Luis Atencio & Tatiana Soldo

2

Main Topics

Demo Presentation• Explanation of demo.

Current Status of Project (TRAP/J v2)• Contributions

Future Road Map• Long Term Goals• Short Term Goals

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TRAP/J V2: Composer Console

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Matmul Example

A sequential code in Java that creates 8 matrices and then multiplies 4 of them against the other 4 all at runtime.

Taken from Juan Martinez

Matmul.java

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TRAP/J V2: Matmul

Matmul.multiply_accumulative()

Matmul_Asp.aj

Redirection & Interception

No Yes

WrapperLevel_Matmul.Multiply_accumulative()

isDelPresent?

App.java

Matmul.multiply_accumulative()

Delegate_Matmul_Multiply_accumulative.multiply_accumulative()

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TouchPoint

TouchPoint(singleton)

Keeps track of:- Adaptive classes- Loaded delegates

Composer

WrapperLevel_AdaptiveClass

Keeps track of: -own instances

-delegates in use

WrapperLevel_AdaptiveClass

Keeps track of: -own instances

-delegates in use

TouchPoint methods:

-getStatus()

- load()

- adapt()

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TRAP/J V2: Matmul (adapt)

WrapperLevel Class

isClassDelPresent Delegate Inst.methodList

Delegate_Matmul

m_a()

1m_a()0

1

2

3

4

5

0

1

2

3

4

5

Index = 0

Update Data Structures0

1

2

3

4

5

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Main Topics

Demo Presentation• Explanation of demo.

Current Status of Project (TRAP/J v2)• Contributions

Future Road Map• Long Term Goals• Short Term Goals

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Reduced critical execution time• Reflective information obtained only if needed• Eliminate redundant searching

User has the ability to provide default (class) delegates or instance delegates

Merged Base-level and Meta-level into Wrapper-level with the creation of a TouchPoint singleton class that communicates the Composer with the WrapperLevel class.

User friendly Java GUI

Communication with the composer is XML based which allows for a web-based user interface

TRAP/J V2: Current Status

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Reduced Critical Execution PathTRAP/J V2 vs TRAP/J

TRAP/J TRAP/J v2

ms.send()

bl.send()

m= Method object reflecting send()

ml.invokeMetaMethod(m)

Loop: searches for matching method in

every delegate.

ms.send()

wl.send()

ifDelPresentyes no

super.send()

m=Method object reflecting send()

wl.invokeMethod(m)

delegateInstance.send()

ifDelFoundyes no

delegateInstance.send() super.send()

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Main Topics

Demo Presentation• Explanation of demo.

Current Status of Project (TRAP/J v2)• Contributions

Future Road Map• Long Term Goals• Short Term Goals

12

Long Term Goals

Explore more in depth concepts of Grid Computing and AC.

Program a suitable delegate class to grid-enable Matmul

Deploy Matmul on Grid Superscalar

Design a web based interface that takes advantage of XML based communication.

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Short Term Goals Memory Leak: need to find a way to interact with garbage

collector.

Composer is loading a .java file instead of a .class bytecode file.

Memory intensive application by using a DOM tree implementation

Provide a more robust, solid user interface.

Leverage performance

Allow for the flexibility of loading JAR files and class files.