Hello Christophe. During the assembly getdp ./configure --enable-petsc --enable-debug --enable-gsl && make found the following errors: in file Function/F_Raytracing.c: 1) not define RCSID; 2) in function F_DiamondPhase() must be corrected line 188: GetDP_Begin("F_DiamondPhase"); Thanks -- Sincerely Shaptala Maxim aka maxchv Linux forever