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|ID||Category||Severity||Reproducibility||Date Submitted||Last Update|
|0000442||[ALGLIB] Linear algebra||feature||have not tried||2012-01-29 13:54||2012-02-15 10:22|
|Summary||0000442: Efficiently handle zero elements during triangular/orthogonal factorization|
Dense Level 2 LU/QR/... performance on sparse matrices stored in the dense form can be significantly improved.
The idea is to skip rows of rank-1 updates which have zero coefficients. It can be done with just one "if", its cost is insignificant, and it can have major performance consequences on some types of the matrices.
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|2012-01-29 13:54||SergeyB||New Issue|
|2012-01-29 13:54||SergeyB||Programming language||=> Unspecified|
|2012-02-15 10:22||SergeyB||Target Version||3.6.0 => Near future|
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