Hi,
Running another case. I got also a FPE. This is the output of gdb:
Program received signal SIGFPE, Arithmetic exception.
0x1204efc4c in VecNorm_MPI (xin=0x120d626d0, type=NORM_2, z=0x11fffe690)
at pvec2.c:80
80 work *= work;
(gdb) p work
$1 = 7.7555804021556748e+161
Billy.