Matrix a = new DenseMatrix(5000,5000); Matrix b = new DenseMatrix(5000,5000); Matrix c = new DenseMatrix(5000,5000); a.multAdd(b, c);
A.multAdd(A, B); // B = A*A + B log.debug("B = A*A + B time: "+(System.currentTimeMillis()-t6));
public Vector solve(Matrix A, Vector b, Vector x) throws IterativeSolverNotConvergedException { checkSizes(A, b, x); double alpha = 0, beta = 0, c = 0, d = 0; A.multAdd(-1, x, r.set(b)); c = (eigmax - eigmin) / 2.0; d = (eigmax + eigmin) / 2.0; for (iter.setFirst(); !iter.converged(r, x); iter.next()) { M.apply(r, z); if (iter.isFirst()) { p.set(z); alpha = 2.0 / d; } else { beta = (alpha * c) / 2.0; beta *= beta; alpha = 1.0 / (d - beta); p.scale(beta).add(z); } A.mult(p, q); x.add(alpha, p); r.add(-alpha, q); } return x; }
public Vector solve(Matrix A, Vector b, Vector x) throws IterativeSolverNotConvergedException { checkSizes(A, b, x); double alpha = 0, beta = 0, c = 0, d = 0; A.multAdd(-1, x, r.set(b)); c = (eigmax - eigmin) / 2.0; d = (eigmax + eigmin) / 2.0; for (iter.setFirst(); !iter.converged(r, x); iter.next()) { M.apply(r, z); if (iter.isFirst()) { p.set(z); alpha = 2.0 / d; } else { beta = (alpha * c) / 2.0; beta *= beta; alpha = 1.0 / (d - beta); p.scale(beta).add(z); } A.mult(p, q); x.add(alpha, p); r.add(-alpha, q); } return x; }
public Vector solve(Matrix A, Vector b, Vector x) throws IterativeSolverNotConvergedException { checkSizes(A, b, x); double alpha = 0, beta = 0, rho = 0, rho_1 = 0; A.multAdd(-1, x, r.set(b)); for (iter.setFirst(); !iter.converged(r, x); iter.next()) { M.apply(r, z); rho = r.dot(z); if (iter.isFirst()) p.set(z); else { beta = rho / rho_1; p.scale(beta).add(z); } A.mult(p, q); alpha = rho / p.dot(q); x.add(alpha, p); r.add(-alpha, q); rho_1 = rho; } return x; }
public Vector solve(Matrix A, Vector b, Vector x) throws IterativeSolverNotConvergedException { checkSizes(A, b, x); double alpha = 0, beta = 0, rho = 0, rho_1 = 0; A.multAdd(-1, x, r.set(b)); for (iter.setFirst(); !iter.converged(r, x); iter.next()) { M.apply(r, z); rho = r.dot(z); if (iter.isFirst()) p.set(z); else { beta = rho / rho_1; p.scale(beta).add(z); } A.mult(p, q); alpha = rho / p.dot(q); x.add(alpha, p); r.add(-alpha, q); rho_1 = rho; } return x; }
A.multAdd(-1, x, r.set(b)); rtilde.set(r);
A.multAdd(-1, x, r.set(b)); rtilde.set(r);
A.multAdd(-1, x, r.set(b)); rtilde.set(r);
A.multAdd(-1, x, r.set(b)); rtilde.set(r);
A.multAdd(-1, x, r.set(b)); rtilde.set(r);
A.multAdd(-1, x, r.set(b)); rtilde.set(r);
A.multAdd(-1, x, r.set(b));
A.multAdd(-1, x, r.set(b));