How to determine what size and how many textures I can use?

[lodygaw]

Hi,
Is there a way to determine (programmatically) what is the maximum size of 1D texture array for particular device? Is there any limitation how many texture arrays can be used in total?

[maleadt]

@lodygaw

Is there a way to determine (programmatically) what is the maximum size of 1D texture array for particular device?

There seems to be a device attribute that matches your question: DEVICE_ATTRIBUTE_MAXIMUM_TEXTURE1D_WIDTH:

julia> attribute(device(), CUDA.DEVICE_ATTRIBUTE_MAXIMUM_TEXTURE1D_WIDTH)
131072

@lodygaw

Is there any limitation how many texture arrays can be used in total?

256, per the compute capability table in CUDA C++ Programming Guide, but I don’t know of a way to query that programmatically.