[petsc-dev] John McCalpin talk: Explicit Hardware and Software Semantics for Data Movement in Parallel Computing

[Jed Brown]

Victor Eijkhout <eijkhout at tacc.utexas.edu> writes:

> https://meeting.austin.utexas.edu/p46an19xdfk/
>
> Really good stuff.

Indeed, definitely worth watching.  Thanks.

I like the idea of explicit inter-core messaging and I think it would be
reasonable to program.  I have mixed feelings about scratchpad memory
and I think that getting rid of implicit caches entirely is not an
option because many algorithms would be really tricky to implement
without them.  But for certain kernels, that explicit memory would make
a big difference.