Test tensor BV of degree 3 with 6 columns of dimension 10*d.
BV Object: V 2 MPI processes
  type: tensor
  6 columns of global length 30
  vector orthogonalization method: classical Gram-Schmidt
  orthogonalization refinement: if needed (eta: 0.7071)
  block orthogonalization method: GS
  number of tensor blocks (degree): 3
  number of columns of U factor: 8
Level of orthogonality < 100*eps
Norm: 6.7787
