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Bug 1404

Summary: Handle += and -= updates in sparse-sparse products
Product: Eigen Reporter: Gael Guennebaud <gael.guennebaud>
Component: SparseAssignee: Nobody <eigen.nobody>
Status: NEW ---    
Severity: Optimization CC: chtz, gael.guennebaud
Priority: Normal    
Version: 3.4 (development)   
Hardware: All   
OS: All   
Bug Depends on:    
Bug Blocks: 814    

Description Gael Guennebaud 2017-03-13 16:54:08 UTC
As noticed there:

it should be easy to extend the current sparse-sparse products implementation to natively support operations like:

C += alpha * A * B;
C -= alpha * A * B;

without extra temporaries.
Comment 1 Nobody 2019-12-04 16:52:57 UTC
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