> On Mar 23, 2017, at 8:31 PM, 丁老师 <ztdepya...@163.com> wrote: > > Dear professor: > I got the location and value of the minimum in a vec with VecMin, But > how to know the rank of CPU which holds the minimum values. > This rank should be known in the whole communicator.
You can call VecGetOwnershipRanges() and then perform bisection on the resulting array to determine which process contains the vector location returned by VecMin(). Barry > > Regards > > > >
