[petsc-users] VecSetValue. fails with -O1/2/3

[Clemens Domanig]

Hi everyone,

maybe someone can explain to me what is going wrong with my code.

In my programm I read values from a vector A and write them at new 
positions into a vector B. This works well as long as I don't use any 
optimization-flags when compiling the code. If I use -O1/2/3 the petsc 
tells me: "out of range error" at VecSetValue.
It always happens at the some position although I'm doing this kind of 
operations at different places again.

petsc-version 3.1.6
g++-version: gcc version 4.1.2 20080704 (Red Hat 4.1.2-48)

Thx for your help - C. Domanig