How to check if two Torch tensors or matrices are equal?

Question

I need a Torch command that checks if two tensors have the same content, and returns TRUE if they have the same content.

For example:

local tens_a = torch.Tensor({9,8,7,6}); local tens_b = torch.Tensor({9,8,7,6});  if (tens_a EQUIVALENCE_COMMAND tens_b) then ... end 

What should I use in this script instead of EQUIVALENCE_COMMAND ?

I tried simply with == but it does not work.

Answer 1

torch.eq(a, b) 

eq() implements the == operator comparing each element in a with b (if b is a value) or each element in a with its corresponding element in b (if b is a tensor).

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Alternative from @deltheil:

torch.all(tens_a.eq(tens_b)) 

Answer 2

This below solution worked for me:

torch.equal(tensorA, tensorB) 

From the documentation:

True if two tensors have the same size and elements, False otherwise.