[ https://issues.apache.org/jira/browse/SYSTEMML-2368?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
LI Guobao closed SYSTEMML-2368. ------------------------------- > Extend scheme Overlap_Reshuffle > ------------------------------- > > Key: SYSTEMML-2368 > URL: https://issues.apache.org/jira/browse/SYSTEMML-2368 > Project: SystemML > Issue Type: Sub-task > Reporter: LI Guobao > Assignee: LI Guobao > Priority: Major > Fix For: SystemML 1.2 > > > It aims to extend the scheme of data partition. > * Disjoint_Random: for each worker, use a permutation multiply {{P[beg:end,] > %*% X}}, where P is constructed for example with > {{P=table(seq(1,nrow(X),sample(nrow(X), nrow(X))))}}, i.e., sampling without > replacement to ensure disjointness. > * Overlap_Reshuffle: Similar to the above, except you create a new > permutation matrix for each worker and without the indexing on P. -- This message was sent by Atlassian JIRA (v7.6.3#76005)