[Users] intel compiler flags?

Hello,

I am working on developing a modified stencil for the Einstein Toolkit and I am discovering that regression tests pass when I use the GNU compilers but fail when I use the Intel compilers, even with gentle optimization settings such as -O1. I suspect over-zealous optimization. Has anyone encountered this sort of problem before? And if so, does anybody know a good combination of flags that makes the intel compiler more cautious, without sacrificing too much speed? (For example, disabling fast math, which seems to be set to active by default.)

Thank you in advance for your help!

Best, Jonah Miller