Same random number seed in each block

[manuschneider]

When I randomize a symmetric tensor, the random number seed seems to be the same for each block. This leads to the same entries in blocks of similar dimensions. This is typically not what one wants. Example:

Bond Bin = Bond(BD_IN, {Qs(0) >> 2, Qs(1) >> 2}, {Symmetry::U1()});
Bond Bout = Bin.redirect();
UniTensor uT = UniTensor({Bin,Bout}, {"in", "out"}).set_name("uT");
uT.normal_(0.,1.);
cout << uT;

-------- start of print ---------
Tensor name: uT
Tensor type: Block
braket_form : True
is_diag    : False
[OVERALL] contiguous : True
========================
BLOCK [#0]
 |- []   : Qn index 
 |- Sym(): Qnum of correspond symmetry
                 -----------
                 |         |
   [0] U1(0)  -->| 2     2 |-->  [0] U1(0)
                 |         |
                 -----------

Total elem: 4
type  : Double (Float64)
cytnx device: CPU
Shape : (2,2)
[[1.72312e-01 2.18939e-01 ]
 [-9.26945e-01 -6.54154e-01 ]]

========================
BLOCK [#1]
 |- []   : Qn index 
 |- Sym(): Qnum of correspond symmetry
                 -----------
                 |         |
   [1] U1(1)  -->| 2     2 |-->  [1] U1(1)
                 |         |
                 -----------

Total elem: 4
type  : Double (Float64)
cytnx device: CPU
Shape : (2,2)
[[1.72312e-01 2.18939e-01 ]
 [-9.26945e-01 -6.54154e-01 ]]