使用毕昇编译器2.5+hypermpi+kml(fftw)编译成功的VASP-5.4.4运行时出现以下warning信息，是什么问题呢？

Warning: ieee_invalid is signaling 

Warning: ieee_divide_by_zero is signaling 

Warning: ieee_underflow is signaling 

Warning: ieee_inexact is signaling