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As opposed to TT-Toolbox and TTPY package, round() with a given epsilon, does not actually lead to a reduction of the rank for a function it is supposed to work with.
I tested on np.exp(-x*y) function projected on a uniform grid.
In ttpy, this function has rank=8 if eps=1e-14, and rank=3 if eps=1e-3 .
However, when I create t3f TT using: T3FZ = t3f.to_tt_tensor(Z)
it automatically leads to rank=10.
After t3f.round(tt=T3FZ, eps=1e-3) rank is still 10.
Having to convert t3f TT on GPU intro ttpy TT just to be able to do rounding with a given EPS is not convenient, could you please fix the round() function?
The text was updated successfully, but these errors were encountered:
As opposed to TT-Toolbox and TTPY package, round() with a given epsilon, does not actually lead to a reduction of the rank for a function it is supposed to work with.
I tested on np.exp(-x*y) function projected on a uniform grid.
In ttpy, this function has rank=8 if eps=1e-14, and rank=3 if eps=1e-3 .
However, when I create t3f TT using:
T3FZ = t3f.to_tt_tensor(Z)
it automatically leads to rank=10.
After
t3f.round(tt=T3FZ, eps=1e-3)
rank is still 10.Having to convert t3f TT on GPU intro ttpy TT just to be able to do rounding with a given EPS is not convenient, could you please fix the round() function?
The text was updated successfully, but these errors were encountered: