Preserve preallocated memory of the destination of a sparse * sparse product
Assigned to Nobody
Link to original bugzilla bug (#385)
Version: 3.4 (development)
From bug #282 (closed):
"It might be possible to 'recompute' a Sparse*Sparse product where the
structure did not change thus no overhead for reallocation would arise."
However, this is not trivial because currently we always evaluate into a temporary and then do a shallow copy (swap) to the destination matrix.