In a series of previous works, see overview in [2], we devel-oped a concept and fabricated experimental laboratory prototypesof amorphous bio-computing devices — Physarum machines. APhysarum machine is a programmable amorphous biological com-puting device experimentally implemented in plasmodium ofPhysarum polycephalum. P. polycephalum belongs to the species oforder Physarales, subclass Myxogastromycetidae, class Myxomycetes,division Myxostelida. It is commonly known as a true, acellular ormulti-headed slime mould. Plasmodium is a ‘vegetative’ phase, asingle cell with a myriad of diploid nuclei. The plasmodium is vis-ible to the unaided eye. The plasmodium looks like an amorphousyellowish mass with networks of protoplasmic tubes. The plasmo-dium behaves and moves as a giant amoeba. It feeds on bacteria,spores and other microbial creatures and micro-particles [30]. Theplasmodium’s foraging behaviour can be interpreted as a computa-tion: data are represented by spatial distribution of attractants andrepellents, and results are represented by a structure of Physarum’sprotoplasmic network. In such specification a plasmodium cansolve computational problems with natural parallelism, includingoptimisation on graphs, computational geometry, logic and robotcontrol, see details in