This document is relevant for: Trn1, Trn2, Trn3

nki.language.negative#

nki.language.negative(x, dtype=None)[source]#

Numerical negative of the input, element-wise.

((Similar to numpy.negative))

Warning

This API is experimental and may change in future releases.

Parameters:

  • x – a tile.

  • dtype – (optional) data type to cast the output type to (see Supported Data Types for more information); if not specified, it will default to be the same as the data type of the input tile.

Returns:

a tile that has numerical negative values of x.

Examples:

import nki.language as nl

# nki.language.negative -- negates 5.0 to -5.0
a = nl.full((128, 512), 5.0, dtype=nl.float32, buffer=nl.sbuf)
c = nl.negative(a)
expected = nl.full((128, 512), -5.0, dtype=nl.float32, buffer=nl.sbuf)
assert nl.equal(c, expected)

# nki.language.negative -- negates -3.0 to 3.0
a = nl.full((128, 512), -3.0, dtype=nl.float32, buffer=nl.sbuf)
c = nl.negative(a)
expected = nl.full((128, 512), 3.0, dtype=nl.float32, buffer=nl.sbuf)
assert nl.equal(c, expected)

This document is relevant for: Trn1, Trn2, Trn3