synchronisation.md

Vulkan Synchronisation

A description of Vulkan synchronisation within the program.

Legend

Memory Operation	Source	Destination
read	memory range
write		memory range
availability	(agent; reference)	memory domain
memory domain	memory domain	memory domain
visibility	memory domain	(agent; reference)
release	memory range
acquire		memory range

Main thread

Memory Operation	Source	Destination	Function
visibility	host domain	(host threads; HV-out)	vkInvalidateMappedMemoryRanges
read	HV-out		readOutBuffer
write		HV-in	writeInBuffer
availability	(host threads; HV-in)	host domain	vkFlushMappedMemoryRanges
memory domain	host domain	device domain	vkQueueSubmit2KHR
visibility	device domain	(device agents; device references)

Onetime command buffer

Memory Operation	Source	Destination	Function
read	HV-in		vkCmdCopyBuffer
write		DL-in
availability	(copy operations; DL-in)	device domain	vkCmdPipelineBarrier2KHR
release	DL-in

Transfer command buffer

Memory Operation	Source	Destination	Function
read	HV-in		vkCmdCopyBuffer
write		DL-in
availability	(copy operations; DL-in)	device domain	vkCmdPipelineBarrier2KHR
release	DL-in
acquire		DL-out
visibility	device domain	(copy operations; DL-out)
read	DL-out		vkCmdCopyBuffer
write		HV-out
availability	(copy operations; HV-out)	device domain	vkCmdPipelineBarrier2KHR
memory domain	device domain	host domain

Compute command buffer

Memory Operation	Source	Destination	Function
acquire		DL-in	vkCmdPipelineBarrier2KHR
visibility	device domain	(dispatch operations; DL-in)
read	DL-in		vkCmdDispatchBase
write		DL-out
availability	(dispatch operations; DL-out)	device domain	vkCmdPipelineBarrier2KHR
release	DL-out