[petsc-dev] Deflated Krylov solvers for PETSc

Jed Brown jedbrown at mcs.anl.gov
Fri Mar 1 23:53:35 CST 2013

On Sat, Mar 2, 2013 at 12:49 AM, Jie Chen <jiechen at mcs.anl.gov> wrote:

> I second this. How many subdomains for a 1 billion unknown problem?

Obviously that depends on how fast you want the answer, but anywhere from
significantly less than one thousand (limited by memory capacity) to about
1M (limited by latency and strong scalability).
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