/*
* tensor product
*/
public <N, V> void tPoduct(N arr1, V arr2) {
try {
Access<?> access1 = Access.rawAccess(arr1, null);
Access<?> access2 = Access.rawAccess(arr2, null);
for (int i = 0; i < access1.size()[0]; i++) {
final float f = access1.elementFloat(i) * access2.elementFloat(i);
access1.putFloat(i, f);
}
} catch (UnsupportedTypeException e) {
e.printStackTrace();
}
}
/*
* dot product
*/
public <N, V> float dotPoduct(N arr1, V arr2) {
float sum = 0;
try {
Access<?> access1 = Access.rawAccess(arr1, null);
Access<?> access2 = Access.rawAccess(arr2, null);
for (int i = 0; i < access1.size()[0]; i++) {
final float f = access1.elementFloat(i) * access2.elementFloat(i);
sum += f;
}
} catch (UnsupportedTypeException e) {
e.printStackTrace();
}
return sum;
}
/**
* @param out
* @param ind
* @param vcoords
* @param ivals
* @param accessin
* @param mc
*/
public void minmaxFloat(
final Access<?> accessin,
final GridIndex ind,
final int[][] vcoords,
final float[] ivals,
final BoundaryCondition<int[]> mc,
final Access<?> out) {
final int[] dims = ind.getDim();
final int sz = vcoords.length;
ind.setIndexAndUpdate(0);
int[] ct = dims.clone();
final int limit = accessin.size()[0];
for (int i = 0; i < limit; i++) {
float sum = 0;
final int[] coords = ind.getCoordinates();
// iteration over kernel
for (int k = 0; k < sz; k++) {
// adding coordinates
for (int u = 0; u < ct.length; u++) {
ct[u] = (coords[u] + vcoords[k][u]);
}
// checking for validity
boolean valid = true;
for (int a = 0; a < dims.length; a++) {
valid = valid && (ct[a] >= 0) && (ct[a] < dims[a]);
}
int u;
try {
if (valid) {
u = ind.indexOf(ct);
} else {
final int[] coords_aux = mc.getCoordsAt(coords);
u = ind.indexOf(coords_aux);
} // end else
final float elem = accessin.elementFloat(u);
sum += elem * ivals[k];
} catch (Exception e) {
// if (debug) {
System.out.println(e + ": " + ind + " ");
Util.printIntArray(vcoords[k]);
// }
} // end catch
} // end for
out.putFloat(i, sum);
ind.inc();
} // end for
}
// TODO
@SuppressWarnings("unchecked")
@Override
public N join() {
PixelCube<E, BaseIndex> pc = new PixelCube<E, BaseIndex>(dim, dummy);
pc.setIndexing(BASE_INDEXING);
pc.one();
pc.setIterationPattern(IP_SINGLE + IP_DIR + IP_FWD);
pc.setDir(new int[] {0, 1});
PixelDirForwardIterator<E> iter = (PixelDirForwardIterator<E>) pc.iterator();
PixelDirForwardIterator<E> iter2 = (PixelDirForwardIterator<E>) pc.iterator();
for (int i = 0; i < nKernels; i++) {
System.out.println("iter: " + i);
for (int u = 0; u < ndim; u++) {
int[] dir = {0, u + 1}; // direction
if (u == ndim - 1) dir = new int[] {1, 0};
iter.setDirection(dir);
iter2.setDirection(dir);
int p = 0;
Access<?> kaccess;
try {
kaccess = Access.rawAccess(kernels[i], null);
final int len = kaccess.size()[0];
System.out.println(dim[u] + ",");
while (iter.hasNext()) {
float elem = iter.next().floatValue();
elem *= kaccess.elementFloat(p);
System.out.print(elem + ",");
iter2.putFloat(elem);
iter2.inc();
p++;
p = p % len;
}
iter.reset();
iter2.reset();
System.out.println();
} catch (UnsupportedTypeException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return null;
} // end catch
} // end for
} // end for
// System.out.println(pc);
return (N) pc.getAccess().getArray();
} //