Specific repo for developing an ASPECT C++ simulation plugin that will be used for the part 1 of the intra-oceanic subduction initiation PhD study of G. Mercier at the dept. de geologie et de genie geologique de l'Universite Laval Qc, Canada. This PhD study is supervised by C. Guilmette (dept. de geologie et de genie geologique, Universite Laval Qc, Canada) and C. Thieulot (Earth Sciences, Utrecht university, the Netherlands).