[petsc-dev] meaning of VecScale() if not a collective

2010-07-05 Thread Barry Smith
I consider that VecScale() has to be considered a collective that requires all processors to pass the same value for the scalar in the same way that VecAXPY() is a collective operation that requires the same value for alpha. The reason is that though you can pass in different values on differ

[petsc-dev] [petsc-users] ublas sparse matrix bindings?

2010-07-05 Thread Aron Ahmadia
> > -- > What most experimenters take for granted before they begin their > experiments is infinitely more interesting than any results to which their > experiments lead. > -- Norbert Wiener > -- next part -- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-dev/attachments/20100705/817be68c/attachment.html>

[petsc-dev] [petsc-users] ublas sparse matrix bindings?

2010-07-05 Thread Matthew Knepley
xperimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener -- next part -- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-dev/attachments/20100705/ad59fa0f/attachment.html>

[petsc-dev] [petsc-users] ublas sparse matrix bindings?

2010-07-05 Thread Jed Brown
On Sat, 3 Jul 2010 15:41:53 +0300, Aron Ahmadia wrote: > I am not sure I understand your argument here (I apologize if I talk past > you, please feel free to clarify). I am surmising from the rest of your > paragraph that you feel it would be most beneficial to users to have the > full flexibili