PARDISO error flags

[jaewonj]

PARDISO error flags -3, -6, and -7 are not so clear to me.

-3 reordering problem
-6 preordering failed (matrix types 11, 13 only)
-7 diagonal matrix problem

I typically get these errors when a given matrix is singular but I want to know exactly what went wrong. Is there any reference that explains more about these error flags?

Thanks.

Jaewon

[Gennady_F_Intel]

there are no more details on this topic for now. It make sence to add such a detailed desciption in the MKL Reference Manual in the future.