# VkDeviceGroupBindSparseInfo(3) Manual Page

## Name

VkDeviceGroupBindSparseInfo - Structure indicating which instances are bound

## C Specification

If the `pNext` chain of VkBindSparseInfo includes a `VkDeviceGroupBindSparseInfo` structure, then that structure includes device indices specifying which instance of the resources and memory are bound.

The `VkDeviceGroupBindSparseInfo` structure is defined as:

    typedef struct VkDeviceGroupBindSparseInfo {
        VkStructureType    sType;
        const void*        pNext;
        uint32_t           resourceDeviceIndex;
        uint32_t           memoryDeviceIndex;
    } VkDeviceGroupBindSparseInfo;

or the equivalent

    typedef VkDeviceGroupBindSparseInfo VkDeviceGroupBindSparseInfoKHR;

## Members

- `sType` is the type of this structure.

- `pNext` is `NULL` or a pointer to an extension-specific structure.

- `resourceDeviceIndex` is a device index indicating which instance of the resource is bound.

- `memoryDeviceIndex` is a device index indicating which instance of the memory the resource instance is bound to.

## Description

These device indices apply to all buffer and image memory binds included in the batch pointing to this structure. The semaphore waits and signals for the batch are executed only by the physical device specified by the `resourceDeviceIndex`.

If this structure is not present, `resourceDeviceIndex` and `memoryDeviceIndex` are assumed to be zero.

Valid Usage

- `resourceDeviceIndex` and `memoryDeviceIndex` must both be valid device indices.

- Each memory allocation bound in this batch must have allocated an instance for `memoryDeviceIndex`.

Valid Usage (Implicit)

- `sType` must be `VK_STRUCTURE_TYPE_DEVICE_GROUP_BIND_SPARSE_INFO`

## See Also

VkStructureType

## 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 (c) 2014-2020 Khronos Group. This work is licensed under a Creative Commons Attribution 4.0 International License.