Optimize outer products for non rank-1 update operation
@ggael
Submitted by Gael GuennebaudAssigned to Nobody
Link to original bugzilla bug (#483)
Description
Currently the outer product impl. is optimized for:
A += v1 * v2.transpose();
making a simple:
A = v1 * v2.transpose();
significantly slower than what it could be because of the additional A.setZero() and additional adds.
Blocking
Edited by Eigen Bugzilla