[ https://issues.apache.org/jira/browse/SYSTEMML-1550?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Matthias Boehm updated SYSTEMML-1550: ------------------------------------- Description: In addition to our traditional memory estimates (based on exact or worst-case dimensions and sparsity), operator selection also performs a check for valid integer dimensions and maximum dense size. However, this dimension/size check does not take worst-case estimates into account. Therefore, we currently compile unnecessary distributed operations for operations that produce ultra-sparse outputs without exactly known sparsity such as rexpand. > Missing worst-cased estimates on valid dimension/size checks > ------------------------------------------------------------ > > Key: SYSTEMML-1550 > URL: https://issues.apache.org/jira/browse/SYSTEMML-1550 > Project: SystemML > Issue Type: Bug > Reporter: Matthias Boehm > > In addition to our traditional memory estimates (based on exact or worst-case > dimensions and sparsity), operator selection also performs a check for valid > integer dimensions and maximum dense size. However, this dimension/size check > does not take worst-case estimates into account. Therefore, we currently > compile unnecessary distributed operations for operations that produce > ultra-sparse outputs without exactly known sparsity such as rexpand. -- This message was sent by Atlassian JIRA (v6.3.15#6346)