Endless execution on a simple test

"Eunseok, Kim" <[email protected]> Fri, 26 May 2006 09:56:26 +0900
Newsgroups	gmane.comp.java.vm.sablevm.general
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Hi~ I'm James Kim.

 

I run a simple java code Benchmark.java as following :

 

public class Benchmark{

             public static void main(String args[]){

                           long start = System.currentTimeMillis();

 

                           if( args.length != 2 ){

                                        System.out.println("usage :
prog_name  <mat_size> <iter number>");

                                        return;

                           }

                           else{

                                        System.out.println("args" +
args.length);

                           }

                           

                           int mat_size = Integer.parseInt(args[0]);

                           int iter_num  = Integer.parseInt(args[1]);

                           int mat[][];

 

 

                           System.out.println("test start");

                           System.out.println("iteration : " + iter_num);

                           System.out.println("matrix size : " + mat_size);

                           System.out.println("=====================");

                           for( int k = 0 ; k < iter_num ; k++ ){

                                        mat = new int[mat_size][mat_size];

 

                                        for( int i = 0 ; i < mat_size ; i++
){

                                                     for( int j = 0 ; j <
mat_size ; j++ ){

                                                                  mat[i][j]
= i*mat_size + j;

 
System.out.print(mat[i][j] + "\t");

                                                     }

                                        }

                                        mat = null;

                           //          System.gc();

                           }

                           System.out.println("=====================");

                           System.out.println("test finished");

 

                           long end = System.currentTimeMillis() - start;

 

                           System.out.println("Elapsed time : " + end);

 

             }

}

 

This code simply repeats allocating a matrix and fill a number in it.

1000X1000 matrix works well, but 10000X10000 matrix wasn't allocated and
whole program was stopped.

If VM required more memory, then "out of memory" exception would occur.

However there's no exception message.

What is the problem?

 

Default Java VM and Kaffe work well in a same condition.

 

Can you help me?

 

James.


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<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>Hi~ I</span></font><font =
face=3DArial><span
lang=3DEN-US style=3D'font-family:Arial'>&#8217;</span></font><font =
face=3D&#44404;&#47548;><span
lang=3DEN-US style=3D'font-family:Gulim'>m James =
Kim.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'><o:p>&nbsp;</o:p></span></fo=
nt></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>I run a simple java code
Benchmark.java as following :<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'><o:p>&nbsp;</o:p></span></fo=
nt></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>public class =
Benchmark{<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; public
static void main(String args[]){<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; long
start =3D System.currentTimeMillis();<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'><o:p>&nbsp;</o:p></span></fo=
nt></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if(
args.length !=3D 2 ){<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
System.out.println(&quot;usage
: prog_name&nbsp; &lt;mat_size&gt; &lt;iter =
number&gt;&quot;);<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
return;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
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;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
}<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
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p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
else{<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
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;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
System.out.println(&quot;args&quot;
+ args.length);<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
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style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
}<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; int
mat_size =3D Integer.parseInt(args[0]);<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; int
iter_num&nbsp; =3D =
Integer.parseInt(args[1]);<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; int
mat[][];<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
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style=3D'font-size:10.0pt;font-family:Gulim'><o:p>&nbsp;</o:p></span></fo=
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<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
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<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
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style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
System.out.println(&quot;test
start&quot;);<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
System.out.println(&quot;iteration
: &quot; + iter_num);<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
System.out.println(&quot;matrix
size : &quot; + mat_size);<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
System.out.println(&quot;=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D&quot;);<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; for(
int k =3D 0 ; k &lt; iter_num ; k++ ){<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; mat
=3D new int[mat_size][mat_size];<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'><o:p>&nbsp;</o:p></span></fo=
nt></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; for(
int i =3D 0 ; i &lt; mat_size ; i++ ){<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; for(
int j =3D 0 ; j &lt; mat_size ; j++ ){<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
mat[i][j]
=3D i*mat_size + j;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
System.out.print(mat[i][j]
+ &quot;\t&quot;);<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
}<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
}<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; mat
=3D null;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
//&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
System.gc();<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
}<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
System.out.println(&quot;=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D&quot;);<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
System.out.println(&quot;test
finished&quot;);<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'><o:p>&nbsp;</o:p></span></fo=
nt></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; long
end =3D System.currentTimeMillis() - start;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'><o:p>&nbsp;</o:p></span></fo=
nt></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
System.out.println(&quot;Elapsed
time : &quot; + end);<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'><o:p>&nbsp;</o:p></span></fo=
nt></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
}<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>}<o:p></o:p></span></font></=
p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'><o:p>&nbsp;</o:p></span></fo=
nt></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>This code simply repeats =
allocating a
matrix and fill a number in it.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>1000X1000 matrix works =
well, but
10000X10000 matrix wasn</span></font><font face=3DArial><span =
lang=3DEN-US
style=3D'font-family:Arial'>&#8217;</span></font><font =
face=3D&#44404;&#47548;><span
lang=3DEN-US style=3D'font-family:Gulim'>t allocated and whole program =
was stopped.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>If VM required more memory, =
then </span></font><font
face=3DArial><span lang=3DEN-US =
style=3D'font-family:Arial'>&#8220;</span></font><font
face=3D&#44404;&#47548;><span lang=3DEN-US =
style=3D'font-family:Gulim'>out of memory</span></font><font
face=3DArial><span lang=3DEN-US =
style=3D'font-family:Arial'>&#8221;</span></font><font
face=3D&#44404;&#47548;><span lang=3DEN-US style=3D'font-family:Gulim'> =
exception
would occur.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>However =
there</span></font><font
face=3DArial><span lang=3DEN-US =
style=3D'font-family:Arial'>&#8217;</span></font><font
face=3D&#44404;&#47548;><span lang=3DEN-US style=3D'font-family:Gulim'>s =
no exception
message.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>What is the =
problem?<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'><o:p>&nbsp;</o:p></span></fo=
nt></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>Default Java VM and Kaffe =
work well
in a same condition.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'><o:p>&nbsp;</o:p></span></fo=
nt></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>Can you help =
me?<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'><o:p>&nbsp;</o:p></span></fo=
nt></p>

<p class=3DMsoNormal><font size=3D2 face=3D&#44404;&#47548;><span =
lang=3DEN-US
style=3D'font-size:10.0pt;font-family:Gulim'>James.<o:p></o:p></span></fo=
nt></p>

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