public void testCreateSparse() {
DenseMatrix A = rand(5, 5);
SparseMatrixLil B = A.toSparseLil();
assertTrue(B.equals(B.mmul(eye(5))));
assertTrue(B.equals(B.t().mmul(eye(5)).t()));
B = spzeros(2, 2);
B.append(1, 0, 5);
B.append(0, 1, 7);
B.append(0, 0, 11);
System.out.println(B.toDense());
System.out.println(B.mmul(eye(2)));
assertTrue(B.equals(B.mmul(eye(2))));
}
public void testSparseMultiply() {
SparseMatrixLil A = sprand(3, 5);
System.out.println(A);
SparseMatrixLil A2 = A.mmul(speye(5));
System.out.println(A2);
assertTrue(A.equals(A2));
}
public void xtestSortViaNative() {
SparseMatrixLil B = spzeros(2, 2);
System.out.println("xtestSortViaNative");
int R = thousandconstant;
int C = largematrixsize;
SparseMatrixLil A = sprand(R, C);
System.out.println("created A");
B = A.add(0); // make copy
System.out.println("created B");
// System.out.println(B);
// B.sort();
B = B.mmul(speye(C));
for (int i = 0; i < B.size; i++) {
if (i > 0) {
assertTrue(B.colIdx[i] >= B.colIdx[i - 1]);
if (B.colIdx[i] == B.colIdx[i - 1]) {
assertTrue(B.rowIdx[i] >= B.rowIdx[i - 1]);
}
}
assertEquals(A.rowIdx[i], B.rowIdx[i]);
assertEquals(A.colIdx[i], B.colIdx[i]);
assertEquals(A.values[i], B.values[i]);
}
System.out.println("sorted B");
// assertTrue( A.equals(B));
// System.out.println("asserted equals");
// System.out.println(B);
B = null;
SparseMatrixLil Bt = A.t(); // t() is also a copy
System.out.println("transposed A");
// System.out.println(Bt);
// Bt.sort();
Bt = Bt.mmul(speye(R));
System.out.println("sorted Bt");
for (int i = 0; i < Bt.size; i++) {
if (i > 0) {
assertTrue(Bt.colIdx[i] >= Bt.colIdx[i - 1]);
if (Bt.colIdx[i] == Bt.colIdx[i - 1]) {
assertTrue(Bt.rowIdx[i] >= Bt.rowIdx[i - 1]);
}
}
}
// System.out.println(Bt);
assertTrue(A.toDense().t().equals(Bt));
System.out.println("checed equal to At");
}
public void testSparseDenseMmul() {
int K = 60;
int N = thousandconstant;
SparseMatrixLil A = SparseMatrixLil.rand(K, N);
DenseMatrix B = DenseMatrix.rand(N, K);
Timer timer = new Timer();
DenseMatrix C = A.mmul(B);
timer.printTimeCheckMilliseconds();
DenseMatrix C2 = A.toDense().mmul(B);
assertTrue(C.equals(C2));
}
public void testOneSparse() {
SparseMatrixLil A = SparseMatrixLil.rand(3, 3).t();
System.out.println(A);
SparseMatrixLil B = SparseMatrixLil.rand(3, 3);
System.out.println(B);
SparseMatrixLil C = A.mmul(B);
System.out.println(C);
DenseMatrix CDense = A.toDense().mmul(B.toDense());
System.out.println(CDense);
assertTrue(C.equals(CDense));
}
public void testThreeSparse() {
int K = 60;
int N = thousandconstant;
SparseMatrixLil A = SparseMatrixLil.rand(N, K);
SparseMatrixLil B = SparseMatrixLil.rand(K, N);
// System.out.println(A.toDense());
Timer timer = new Timer();
SparseMatrixLil C = B.mmul(A);
timer.printTimeCheckMilliseconds();
SparseMatrixLil C1 = B.mmul(A);
timer.printTimeCheckMilliseconds();
SparseMatrixLil C2 = B.mmul(A);
timer.printTimeCheckMilliseconds();
DenseMatrix CDense = B.toDense().mmul(A.toDense());
timer.printTimeCheckMilliseconds("for dense");
assertTrue(C.equals(CDense));
K = 400;
N = thousandconstant;
A = SparseMatrixLil.rand(N, K);
B = SparseMatrixLil.rand(K, N);
// System.out.println(A.toDense());
timer = new Timer();
C = B.mmul(A);
timer.printTimeCheckMilliseconds();
C1 = B.mmul(A);
timer.printTimeCheckMilliseconds();
C2 = B.mmul(A);
timer.printTimeCheckMilliseconds();
CDense = B.toDense().mmul(A.toDense());
timer.printTimeCheckMilliseconds("for dense");
assertTrue(C.equals(CDense));
}