VkDeviceGroupSubmitInfo

If the pNext chain of VkSubmitInfo includes a VkDeviceGroupSubmitInfo structure, then that structure includes device indices and masks specifying which physical devices execute semaphore operations and command buffers.

The VkDeviceGroupSubmitInfo structure is defined as:

typedef struct VkDeviceGroupSubmitInfo {
    VkStructureType sType;
    const void* pNext;
    uint32_t waitSemaphoreCount;
    const uint32_t* pWaitSemaphoreDeviceIndices;
    uint32_t commandBufferCount;
    const uint32_t* pCommandBufferDeviceMasks;
    uint32_t signalSemaphoreCount;
    const uint32_t* pSignalSemaphoreDeviceIndices;
} VkDeviceGroupSubmitInfo;

or the equivalent

typedef VkDeviceGroupSubmitInfo VkDeviceGroupSubmitInfoKHR;

• sType is a VkStructureType value identifying this structure.
• pNext is NULL or a pointer to a structure extending this structure.
• waitSemaphoreCount is the number of elements in the pWaitSemaphoreDeviceIndices array.
• pWaitSemaphoreDeviceIndices is a pointer to an array of waitSemaphoreCount device indices indicating which physical device executes the semaphore wait operation in the corresponding element of VkSubmitInfo::pWaitSemaphores.
• commandBufferCount is the number of elements in the pCommandBufferDeviceMasks array.
• pCommandBufferDeviceMasks is a pointer to an array of commandBufferCount device masks indicating which physical devices execute the command buffer in the corresponding element of VkSubmitInfo::pCommandBuffers. A physical device executes the command buffer if the corresponding bit is set in the mask.
• signalSemaphoreCount is the number of elements in the pSignalSemaphoreDeviceIndices array.
• pSignalSemaphoreDeviceIndices is a pointer to an array of signalSemaphoreCount device indices indicating which physical device executes the semaphore signal operation in the corresponding element of VkSubmitInfo::pSignalSemaphores.

If this structure is not present, semaphore operations and command buffers execute on device index zero.