vkGetExecutionGraphPipelineScratchSizeAMDX(3)

# vkGetExecutionGraphPipelineScratchSizeAMDX(3) Manual Page

## Name

vkGetExecutionGraphPipelineScratchSizeAMDX - Query scratch space required to dispatch an execution graph

## C Specification

To query the scratch space required to dispatch an execution graph, call:

    // Provided by VK_AMDX_shader_enqueue
    VkResult vkGetExecutionGraphPipelineScratchSizeAMDX(
        VkDevice                                    device,
        VkPipeline                                  executionGraph,
        VkExecutionGraphPipelineScratchSizeAMDX*    pSizeInfo);

## Parameters

- `device` is the logical device that `executionGraph` was created on.

- `executionGraph` is the execution graph pipeline to query the scratch space for.

- `pSizeInfo` is a pointer to a VkExecutionGraphPipelineScratchSizeAMDX structure that will contain the required scratch size.

## Description

After this function returns, information about the scratch space required will be returned in `pSizeInfo`.

Valid Usage (Implicit)

- VUID-vkGetExecutionGraphPipelineScratchSizeAMDX-device-parameter
  `device` must be a valid VkDevice handle

- VUID-vkGetExecutionGraphPipelineScratchSizeAMDX-executionGraph-parameter
  `executionGraph` must be a valid VkPipeline handle

- VUID-vkGetExecutionGraphPipelineScratchSizeAMDX-pSizeInfo-parameter
  `pSizeInfo` must be a valid pointer to a VkExecutionGraphPipelineScratchSizeAMDX structure

- VUID-vkGetExecutionGraphPipelineScratchSizeAMDX-executionGraph-parent
  `executionGraph` must have been created, allocated, or retrieved from `device`

Return Codes

On success, this command returns

  - VK_SUCCESS

On failure, this command returns

  - VK_ERROR_OUT_OF_HOST_MEMORY

  - VK_ERROR_UNKNOWN

  - VK_ERROR_VALIDATION_FAILED

## See Also

VK_AMDX_shader_enqueue, VkDevice, VkExecutionGraphPipelineScratchSizeAMDX, VkPipeline

## Document Notes

For more information, see the Vulkan Specification.

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.

## Copyright

Copyright 2014-2026 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0