This sounds like a hypre issues. Euclid/Hypre is not use much AFAIK so it might have some problems that have not been addressed.
On Tue, Nov 19, 2013 at 12:11 PM, Manav Bhatia <[email protected]>wrote: > Hi, > > I am using ilu(k) preconditioner from Euclid/Hypre on my Mac OS 10.9 > box with 12 processors and openmpi v1.7.3 from macports. > > I find that for 1 CPU (-np 1) the code runs reasonably fast, but when > multiple processors are included the solver runs significantly slow (by > orders of magnitude). I ran the time profiler on one of the processes > spawned by openmpirun, and it seems to be taking a lot of time in > MPI_Waitall called from Euclid_dhSetup. > > This could very well be a Hypre issue, but I wanted to check to see if > anynoe on the Petsc list has experience a similar problem. > > Any suggestions/inputs are welcome. > > Thanks, > Manav > >
