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/*****************************************************************************
* Copyright (c) 2010 CEA LIST.
*
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Sara TUCCI (CEA LIST) sara.tucci@cea.fr - Initial API and implementation
* Chokri MRAIDHA (CEA LIST) chokri.mraidha@cea.fr - Initial API and implementation
* David SERVAT (CEA LIST) david.servat@cea.fr - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.eastadl.structure.hardwaremodeling;
/**
* <!-- begin-user-doc -->
* A representation of the model object '<em><b>Node</b></em>'.
* <!-- end-user-doc -->
*
* <!-- begin-model-doc -->
* Node represents the computer nodes of the embedded EE system. Nodes consist of processor(s) and may be connected to sensors, actuators and other ECUs via a BusConnector.
*
* Node denotes an electronic control unit that acts as a computing element executing Functions. In case a single CPU-single core ECU is represented, it is sufficient to have a single, non-hierarchical Node.
*
* Semantics:
* The Node element represents an ECU, i.e. an Electronic Control Unit and an allocation target of FunctionPrototypes.
*
* The Node executes its allocated FunctionPrototypes at the specified executionRate. The executionRate denotes how many execution seconds of an allocated functionPrototype´s execution time that is processed each real-time second. Actual execution time is
* thus found by dividing the parameters of the ExecutionTimeConstraint with executionRate.
*
* Example: If an ECU is 25% faster than a standard ECU (e.g., in a certain context, execution times are given assuming a nominal speed of 100 MHz; Our CPU is then 125 MHz), the executionRate is 1.25. An execution time of 5 ms would then become 4 ms on this
* ECU.
*
* Notation:
* Node is shown as a solid-outline rectangle with Node at the top right. The rectangle contains the name, and its ports or port groups on the perimeter.
* <!-- end-model-doc -->
*
* <p>
* The following features are supported:
* <ul>
* <li>{@link org.eclipse.papyrus.eastadl.structure.hardwaremodeling.Node#getExecutionRate <em>Execution Rate</em>}</li>
* </ul>
* </p>
*
* @see org.eclipse.papyrus.eastadl.structure.hardwaremodeling.HardwaremodelingPackage#getNode()
* @model
* @generated
*/
public interface Node extends HardwareComponentType {
/**
* Returns the value of the '<em><b>Execution Rate</b></em>' attribute.
* The default value is <code>"1"</code>.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* <!-- begin-model-doc -->
* ExecutionRate is used to compute an approximate execution time. A nominal execution time divided by executionRate provides the actual execution time to be used e.g. for timing analysis in feasibility studies.
* <!-- end-model-doc -->
*
* @return the value of the '<em>Execution Rate</em>' attribute.
* @see #setExecutionRate(Float)
* @see org.eclipse.papyrus.eastadl.structure.hardwaremodeling.HardwaremodelingPackage#getNode_ExecutionRate()
* @model default="1" unique="false" dataType="org.eclipse.papyrus.eastadl.infrastructure.datatypes.javalangFloat" required="true" ordered="false"
* @generated
*/
Float getExecutionRate();
/**
* Sets the value of the '{@link org.eclipse.papyrus.eastadl.structure.hardwaremodeling.Node#getExecutionRate <em>Execution Rate</em>}' attribute.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
*
* @param value
* the new value of the '<em>Execution Rate</em>' attribute.
* @see #getExecutionRate()
* @generated
*/
void setExecutionRate(Float value);
} // Node
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