[petsc-users] Duplicate options

Jed Brown jed at jedbrown.org
Wed Aug 12 10:27:48 CDT 2015

Matthew Knepley <knepley at gmail.com> writes:
> So, SHA1(class, type_name, prefix)? I could live with that. Then we
> maintain a khash table of those we have seen while printing.

Yeah, ultimately with a reader lock for thread safety.
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