99 lines
2.3 KiB
Java
99 lines
2.3 KiB
Java
package lip6.jikesrvm.bench;
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import java.util.Random;
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import lip6.jikesrvm.bench.Cell;
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import lip6.microbenchs.PapiHighLevel;
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public class Main
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{
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private static final long NB_ELEM = 10000;
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private static Random randomInt; // random int to put into the cells
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private static Cell head;
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static
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{
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System.loadLibrary("papihighlevel");
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}
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public static void main(String args[])
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{
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randomInt = new Random(424242424242L);
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{
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Cell oldCell, newCell;
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newCell = null;
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head = new Cell(randomInt.nextInt());
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oldCell = head;
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for (int i = 0; i < NB_ELEM - 1; i++)
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{
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if (i == NB_ELEM / 2)
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Runtime.getRuntime().gc();
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newCell = new Cell(randomInt.nextInt());
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newCell.setPrev(oldCell);
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oldCell.setNext(newCell);
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oldCell = newCell;
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}
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newCell.setNext(head);
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head.setPrev(newCell);
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}
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if (PapiHighLevel.initialize_papi() != 0)
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{
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System.err.println("Error while inizializing PAPI");
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java.lang.System.exit(1);
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return;
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}
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bubbleSort();
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if (PapiHighLevel.print_results() != 0)
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{
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System.err.println("Error while getting results");
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java.lang.System.exit(2);
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return;
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}
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}
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private static void bubbleSort()
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{
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Cell cell, nextCell;
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/* We suppose the list disordered */
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boolean ordered = false;
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/* We stop after NB_ELEM loop or if a loop has been done without inversion */
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for(int i = 0 ; (i < NB_ELEM) && !ordered; i++)
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{
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/* We suppose the list ordered */
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ordered = true;
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/* New tracing of the list: we start to examine the first 2 cells */
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cell = head;
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nextCell = cell.getNext();
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for(int j = 1 ;j < NB_ELEM - i; j++)
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{
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/* If the 2 cells aren't ordered */
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if (nextCell.getValue() < cell.getValue())
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{
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/* We invert the 2 cells */
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cell.getPrev().setNext(nextCell);
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nextCell.getNext().setPrev(cell);
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cell.setNext(nextCell.getNext());
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nextCell.setPrev(cell.getPrev());
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cell.setPrev(nextCell);
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nextCell.setNext(cell);
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Cell.incCounter(6);
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/* We made an inversion: the list isn't ordered */
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ordered = false;
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}
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else
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cell = nextCell; /* Get ready for the next loop: we make a one cell shift (1) */
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/* Get ready for the next loop: we make a one cell shift (2) */
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nextCell = cell.getNext();
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}
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}
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System.out.println("ctr: " + Cell.getCounter());
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}
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};
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