|Summary:||Preserve preallocated memory of the destination of a sparse * sparse product|
|Product:||Eigen||Reporter:||Gael Guennebaud <gael.guennebaud>|
Description Gael Guennebaud 2011-12-03 17:56:32 UTC
From bug 282: "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.
Comment 2 Nobody 2019-12-04 11:17:53 UTC
-- GitLab Migration Automatic Message -- This bug has been migrated to gitlab.com's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.com/libeigen/eigen/issues/385.