VTK-m compilation uses too much memory

While building VTK-m (in the context of ParaView), memory usage goes up to the roof, preventing me to use all my CPUs in order to avoid swapping.

Is this expected ? If it is, would there be a way to reduce the parallelization of only VTK-m in order to be able to use all my CPU when compiling the rest of ParaView/VTK ?

Usually, one VTK-m compilation thread uses 2Gb of memory.