15 Nov
2013
15 Nov
'13
6:58 a.m.
Hello all!
Is there a way to use the global Cactus reduction functions on fractions of the entire grid?
I am interested in summing grid scalars (say rho) in spherical shells in the grid. Is there a way to perform the "sum" reduction on those shells specified by a global radius variable? Or do I need to write my own MPI function that sums the contributions from all processors that have grid point that fall within the shell I am interested in?
best wishes,
Vassili