Richard Tran Mills <[email protected]> writes: > I haven't experimented very thoroughly with it (hmm... should probably do > such experiments), but I believe that, once matrix rows become sufficiently > long, then SELL doesn't provide an advantage over AIJ.
What is the performance model that explains why SELL doesn't benefit from long rows? It's clear for large blocks where BAIJ can be compiled to vectorized loads and stores, but much less clear when AIJ is producing basically scalar code.
