My Community

Dear all，
I have a task，which can be executed，perfectly， by the serial version。
But ，when I try to use the parallel version，I got this‘WARING:Sub-Space-Matrix is not hermitian ’

thank you very much

I solved this problem by reducing AMIX to 0.03. I also switched to Normal, and used the default for NSIM. I'm not sure whether the last two steps were necessary. A larger AMIX may also work, but I definitely had to decrease it from the default of 0.4. I have not tried the serial calculation.
I also had PREC=Accurate

This problem is commonly posted here, and none of the things that were suggested as fixes worked or applied to me. I was surprised when decreasing AMIX worked.