HLIBpro
2.5.1
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ACA with full pivot search (complexity: O(n²)) More...
#include <TLowRankApx.hh>
Additional Inherited Members | |
Public Member Functions inherited from TACA< T > | |
virtual TMatrix * | build (const TBlockCluster *cl, const TTruncAcc &acc) const |
virtual TMatrix * | build (const TBlockIndexSet &block_is, const TTruncAcc &acc) const |
Full ACA tests all matrix coefficients in the search for the best cross. This results in a guaranteed approximation within the given accuracy. However, the costs are now quadratic in the size of the block.