MaxPool#

MaxPool operation performs the computation following the below formulas. Variable names follow the standard Conventions.

\[\dst(n, c, oh, ow) = \max\limits_{kh, kw} \left( \src(n, c, oh \cdot SH + kh \cdot (DH + 1) - PH_L, ow \cdot SW + kw \cdot (DW + 1) - PW_L) \right)\]

Operation Attributes#

Attribute

Name

Description

Value Type

Supported

Values

Required or

Optional

strides

Controls the strides the window is moved

s64

A s64 list containing positive values

Required

pads_begin

Controls number of zeros to be add to the front/top/left of spatial dimensions, the attribute will be ignored when auto_pad attribute is specified to same_upper, same_lower or valid

s64

A s64 list containing non-negative values

Required

pads_end

Controls number of zeros to be add to the back/bottom/right of spatial dimensions, the attribute will be ignored when auto_pad attribute is specified to same_upper, same_lower or valid

s64

A s64 list containing non-negative values

Required

kernel

Size of pooling window

s64

A s64 list containing positive values

Required

dilations

Denotes the distance in width and height between elements.

s64

A s64 list containing positive values, a list of 1 s (default) means no dilation

Optional

rounding_type

Controls how to do rounding

string

floor (default), ceil

Optional

auto_pad

Controls how the paddings are calculated

string

none (default), same_upper, same_lower, valid

Optional

data_format

Controls how to interpret the shape of src and dst.

string

NCX, NXC (default)

Optional

Execution Arguments#

The inputs and outputs must be provided according to the below index order when constructing an operation.

Inputs#

Index

Argument Name

Required or Optional

0

src

Required

Outputs#

Index

Argument Name

Required or Optional

0

dst

Required

Supported Data Types#

MaxPool operation supports the following data type combinations.

Src

Dst

f32

f32

bf16

bf16

f16

f16