how to save work space?

Question

MURTADHA ALDEER 2012-7-26

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Dears

I am trying to save the workspace of my simulation program, however I get this message

Not enough memory to read file contents: Java heap space

Could you please help me with this!

regards

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Answer 1

Thomas 2012-7-26

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编辑：Thomas 2012-7-26

在 MATLAB Online 中打开

You could increase the Java Heap size as follows:

Windows:File->Preferences->General->Java heap space
Mac: MATLAB->Prefernces->General-> Java Heap Memory

Move the slider to maximum available Java Heap size and see if you still get the error

USe save or matfile to save your workspace

 doc save
 doc matfile

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Srinivas 2012-7-26

Check the blog below

http://blogs.mathworks.com/community/2010/04/26/controlling-the-java-heap-size/

MURTADHA ALDEER 2012-7-28

I am using Matlab R 2008a, when I used the commands in the blog I got this message when running my program?

Not enough memory to read file contents: Java heap space Exception in thread "AWT-EventQueue-0" java.lang.OutOfMemoryError: Java heap space at java.util.Arrays.copyOfRange(Unknown Source) at java.lang.String.<init>(Unknown Source) at org.netbeans.editor.DocumentContent.getText(DocumentContent.java:152) at org.netbeans.editor.DocumentContent.getString(DocumentContent.java:142) at javax.swing.text.AbstractDocument.getText(Unknown Source) at com.mathworks.widgets.text.mcode.BaseDocumentMTreeProvider.getTextFromDocument(BaseDocumentMTreeProvider.java:56) at com.mathworks.widgets.text.mcode.MTreeDocumentProvider.getText(MTreeDocumentProvider.java:25) at com.mathworks.widgets.text.mcode.MTreeDocumentProvider.getMTree(MTreeDocumentProvider.java:63) at com.mathworks.widgets.text.mcode.MTreeBaseDocumentCache.getMTree(MTreeBaseDocumentCache.java:35) at com.mathworks.widgets.text.mcode.MFoldManager.getInitialFoldsInfo(MFoldManager.java:408) at com.mathworks.widgets.text.mcode.MFoldManager.createFolds(MFoldManager.java:273) at com.mathworks.widgets.text.mcode.MFoldManager.initFolds(MFoldManager.java:87) at org.netbeans.modules.editor.fold.FoldOperationImpl.initFolds(FoldOperationImpl.java:96) at org.netbeans.modules.editor.fold.FoldHierarchyExecution.rebuildManagers(FoldHierarchyExecution.java:643) at org.netbeans.modules.editor.fold.FoldHierarchyExecution.rebuild(FoldHierarchyExecution.java:576) at org.netbeans.modules.editor.fold.FoldHierarchyExecution$2.run(FoldHierarchyExecution.java:749) at java.awt.event.InvocationEvent.dispatch(Unknown Source) at java.awt.EventQueue.dispatchEvent(Unknown Source) at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.run(Unknown Source) Exception in thread "Thread-7" java.lang.OutOfMemoryError: Java heap space at java.util.Arrays.copyOfRange(Unknown Source) at java.lang.String.<init>(Unknown Source) at org.netbeans.editor.DocumentContent.getText(DocumentContent.java:152) at org.netbeans.editor.DocumentContent.getString(DocumentContent.java:142) at javax.swing.text.AbstractDocument.getText(Unknown Source) at com.mathworks.widgets.text.mcode.MLintDecorator.doMLint(MLintDecorator.java:998) at com.mathworks.widgets.text.mcode.MLintDecorator.access$2300(MLintDecorator.java:36) at com.mathworks.widgets.text.mcode.MLintDecorator$MLintRunnable.run(MLintDecorator.java:1143) at java.lang.Thread.run(Unknown Source)

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Answer 2

Sumit Tandon 2012-7-26

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How are you saving the workspace? If you are saving variables to MAT-files, then consider using MATFILE command. It allows saving variable partially - using less memory in the process.