Exemple #1
0
    def exercise_increasing_dimensions(self):
        print("Scaling with m and m/n: ", end=' ')
        n_tests = 0
        for sigma, a in self.matrices():
            m, n = a.focus()
            if self.show_progress:
                if not n_tests: print()
                print((m, n), end=' ')
                sys.stdout.flush()
            svd = self.klass(a, self.accumulate_u, self.accumulate_v)
            if self.show_progress:
                print('!', end=' ')
                sys.stdout.flush()
            sigma = sigma.select(flex.sort_permutation(sigma, reverse=True))
            delta = (svd.sigma - sigma).norm() / sigma.norm() / min(
                m, n) / self.eps
            assert delta < 10
            n_tests += 1

            if not self.exercise_tntbx:
                if self.show_progress: print()
                continue
            svd = tntbx.svd_m_ge_n_double(a)
            if self.show_progress:
                print('!')
                sys.stdout.flush()
            sigma = sigma.select(flex.sort_permutation(sigma, reverse=True))
            delta = ((svd.singular_values() - sigma).norm() / sigma.norm() /
                     min(m, n) / self.eps)
            assert delta < 10
        if self.show_progress: print()
        print("%i done" % n_tests)
Exemple #2
0
  def exercise_increasing_dimensions(self):
    print "Scaling with m and m/n: ",
    n_tests = 0
    for sigma, a in self.matrices():
      m, n = a.focus()
      if self.show_progress:
        if not n_tests: print
        print (m,n),
        sys.stdout.flush()
      svd = scitbx.linalg.svd.real(a, self.accumulate_u, self.accumulate_v)
      if self.show_progress:
        print '!',
        sys.stdout.flush()
      sigma = sigma.select(flex.sort_permutation(sigma, reverse=True))
      delta = (svd.sigma - sigma).norm()/sigma.norm()/min(m,n)/self.eps
      assert delta < 10
      n_tests += 1

      if not self.exercise_tntbx:
        if self.show_progress: print
        continue
      svd = tntbx.svd_m_ge_n_double(a)
      if self.show_progress:
        print '!'
        sys.stdout.flush()
      sigma = sigma.select(flex.sort_permutation(sigma, reverse=True))
      delta = ((svd.singular_values() - sigma).norm()
               /sigma.norm()/min(m,n)/self.eps)
      assert delta < 10
    if self.show_progress: print
    print "%i done" % n_tests