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Refactoring of the cost model:

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- Dynamic is now an invalid value
 - introduce a HugeCost constant to be used for runtime-cost values or arbitrarily huge cost
 - add sanity checks for cost values: must be >=0 and not too large
This change provides several benefits:
 - it fixes shortcoming is some cost computation where the Dynamic case was not properly handled.
 - it simplifies cost computation logic, and should avoid future similar shortcomings.
 - it allows to distinguish between different level of dynamic/huge/infinite cost
 - it should enable further simplifications in the computation of costs (save compilation time)
This commit is contained in:
Gael Guennebaud
2015-10-28 11:42:14 +01:00
parent 827d8a9bad
commit 77ff3386b7
22 changed files with 139 additions and 68 deletions
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5
test/vectorwiseop.cpp
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@@ -217,6 +217,11 @@ template<typename MatrixType> void vectorwiseop_matrix(const MatrixType& m)
VERIFY_IS_APPROX( (m1 * m1.transpose()).colwise().sum(), m1m1.colwise().sum());
Matrix<Scalar,1,MatrixType::RowsAtCompileTime> tmp(rows);
VERIFY_EVALUATION_COUNT( tmp = (m1 * m1.transpose()).colwise().sum(), (MatrixType::RowsAtCompileTime==Dynamic ? 1 : 0));
m2 = m1.rowwise() - (m1.colwise().sum()/m1.rows()).eval();
m1 = m1.rowwise() - (m1.colwise().sum()/m1.rows());
VERIFY_IS_APPROX( m1, m2 );
VERIFY_EVALUATION_COUNT( m2 = (m1.rowwise() - m1.colwise().sum()/m1.rows()), (MatrixType::RowsAtCompileTime==Dynamic ? 1 : 0) );
}
void test_vectorwiseop()