private void initialize() {
InternalFPF locFPF1 = new InternalFPF();
InternalFPF locFPF2 = new InternalFPF();
// Local random number.
RandNum rndnum = new RandNum();
// Allocate arrays.
aarray = new InternalFPF[array_rows];
barray = new InternalFPF[array_rows];
carray = new InternalFPF[array_rows];
// Instantiate objects.
for (int i = 0; i < array_rows; i++) {
aarray[i] = new InternalFPF();
barray[i] = new InternalFPF();
carray[i] = new InternalFPF();
}
for (int i = 0; i < array_rows; i++) {
locFPF1 = new InternalFPF(rndnum.nextwc(50000));
locFPF2 = new InternalFPF(rndnum.nextwc(50000) + 1);
EmFloatPnt.DivideInternalFPF(locFPF1, locFPF2, aarray[i]);
locFPF2 = new InternalFPF(rndnum.nextwc(50000) + 1);
EmFloatPnt.DivideInternalFPF(locFPF1, locFPF2, barray[i]);
}
System.gc(); // Do garbage collection.
}
private long DoIteration() {
long testTime; // Duration of the test (milliseconds).
int i; // Index.
int locloops; // Local for loops.
// Following is a "jump table" that defines which operation
// will be performed per pass through the loop. Each pass
// through the arrays performs operations in the following
// ratios:
// 4 adds, 4 subtracts, 5 multiplies, 3 divides
// (adds and subtracts being nearly the same operation).
byte[] jtable = {0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3};
locloops = loops_per_iter; // Set # of loops to perform.
// Start the stopwatch.
testTime = System.currentTimeMillis();
while ((locloops--) > 0) {
for (i = 0; i < array_rows; i++) {
if ((jtable[i % 16]) == 0) {
// Add.
EmFloatPnt.AddSubInternalFPF((byte) 0, aarray[i], barray[i], carray[i]);
} else if ((jtable[i % 16]) == 1) {
// Subtract.
EmFloatPnt.AddSubInternalFPF((byte) 1, aarray[i], barray[i], carray[i]);
} else if ((jtable[i % 16]) == 2) {
// Multiply.
EmFloatPnt.MultiplyInternalFPF(aarray[i], barray[i], carray[i]);
} else if ((jtable[i % 16]) == 3) {
// Divide.
EmFloatPnt.DivideInternalFPF(aarray[i], barray[i], carray[i]);
}
}
}
return (System.currentTimeMillis() - testTime);
}
