---
title: "ClikaRT::nn::AdaptiveMaxPool2d"
sidebar_label: "AdaptiveMaxPool2d"
description: "Max pooling to a fixed 2-D output size, the window derived per output position; the input is channels-last."
---

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**Header:** `ClikaRT/nn/generated/pooling.h`  
**Inherits:** [`ClikaRT::nn::Module`](./Module.md)

Max pooling to a fixed 2-D output size, the window derived per output position; the input is channels-last. The module form of [`ClikaRT::ops::adaptive_max_pool2d`](../ops/adaptive_max_pool2d.md#adaptive_max_pool2d), which documents the full contract (shapes, dtypes, errors); construct once, then call it like a function.

## Member functions

### AdaptiveMaxPool2d(AdaptiveMaxPool2dOptions) {#AdaptiveMaxPool2d}

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`explicit` **`AdaptiveMaxPool2d`**([`AdaptiveMaxPool2dOptions`](./AdaptiveMaxPool2dOptions.md) `options`)

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Constructs the module from [`options`](./AdaptiveMaxPool2d.md#options).

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Declared in `ClikaRT/nn/generated/pooling.h`, line 749

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### AdaptiveMaxPool2d(vector\<int64\_t\>) {#AdaptiveMaxPool2d-2}

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`explicit` **`AdaptiveMaxPool2d`**(`std::vector<std::int64_t>` `output_size`)

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`AdaptiveMaxPool2d(output_size)`: the positional form of `AdaptiveMaxPool2dOptions(output_size)`.

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Declared in `ClikaRT/nn/generated/pooling.h`, line 752

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### forward() {#forward}

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[`Tensor`](../Tensor.md) **`forward`**([`Tensor`](../Tensor.md) `input`) `const`

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[`forward_impl`](./AdaptiveMaxPool2d.md#forward), unwrapped: raises [`ClikaRT::Error`](../Error.md) on failure.

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Declared in `ClikaRT/nn/generated/pooling.h`, line 764

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### operator()() {#operator-call}

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[`Tensor`](../Tensor.md) **`operator()`**([`Tensor`](../Tensor.md) `input`) `const`

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Same as [`forward`](./AdaptiveMaxPool2d.md#forward).

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Declared in `ClikaRT/nn/generated/pooling.h`, line 768

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### options() {#options}

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`const` [`AdaptiveMaxPool2dOptions`](./AdaptiveMaxPool2dOptions.md)`&` **`options`**() `const`

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The settings this module was constructed with.

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Declared in `ClikaRT/nn/generated/pooling.h`, line 772

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