Parallel version of upwind scheme

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Oleg Kravchenko
Oleg Kravchenko on 21 Feb 2019
Commented: Oleg Kravchenko on 23 Feb 2019
Dear all, I came up to the naive question which is contradictive, i.e.
How to parallelize upwind scheme?
Suppose, we have the following implementation of upwind
for k = 1:kFin % time-loop
% space-loop
un(2:nx) = u(2:nx) - cfl*(u(2:nx) - u(1:nx-1));
% BC
un(1) = un(nx);
% update
u = un;
end % for
So, how to parallelize it via parfor or spmd or else?
Is it possible for such schemes?
  2 Comments
Walter Roberson
Walter Roberson on 21 Feb 2019
Is cfl a scalar, or is it a row vector with (nx-1) columns, or is it a square 2D array with (nx-1) rows and columns ?
Oleg Kravchenko
Oleg Kravchenko on 23 Feb 2019
Dear Walter,
Thank you for reply.
I thought that number is a scalar, but it could be a vector of matrix if it's necessary for sure. Suppose is a constant value for simplicity.

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