[petsc-dev] strangness in Chebyshev estimate of eigenvalues

[Jed Brown]

Matthew Knepley <knepley at gmail.com> writes:
> Should we just make this another Random implementation which is only for
> testing?

The problem is that we want to produce the same numbers on one process
and on many processes.  The interface doesn't really afford that because
it provides a stream of numbers.  If we know the number of entries we're
about to ask for on each process, we could do a Scan to find the
starting index and "seed" with that, where drawing a number hashes and
increments the counter.  But this is pretty contorted.
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