More information about the UDIM texture token can be found here.
Another option is to disable 'Use Absolute Texture Paths'. This can be found in the Render Settings Window under System, Search Paths.
'Absolute Texture Paths' can be found under System>Search Paths in the Render Settings window
You can also connect a File 2d texture node to your shading network, and in the attribute, editor load the first of your UV tiles in the Image Name attribute.
Select the UDIM (Mari) UV Tiling Mode - select this option if your UV co-ordinates are represented as a four-digit number using the formula 1000+(u+1+v*10).
Displacement shader network
Displacement Attributes used in this example
That concludes this tutorial for rendering displacement maps saved from Mari using <udim> tokens.
The final render (minus one bucket)