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Bug 441 - Implement sparse-triangular solver with a sparse RHS
Summary: Implement sparse-triangular solver with a sparse RHS
Status: NEW
Alias: None
Product: Eigen
Classification: Unclassified
Component: Sparse (show other bugs)
Version: 3.1
Hardware: All All
: Normal enhancement
Assignee: Nobody
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Reported: 2012-03-29 11:35 UTC by Gael Guennebaud
Modified: 2012-03-29 11:35 UTC (History)
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Description Gael Guennebaud 2012-03-29 11:35:18 UTC
We only have a not very good implementation for a column major sparse matrix. We need a proper one based on the construction of the elimination tree and we need to suport both column and row major matrices. Very useful for true sparse direct solving with a sparse rhs (for instance to compute the Schur complement). Currently the rhs is treated by converting the sparse columns of the rhs to dense ones.

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