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now gemv supports strides

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This commit is contained in:
Gael Guennebaud 2011-01-30 08:17:46 +01:00
parent 157a5040d5
commit 6e67d15795
2 changed files with 11 additions and 6 deletions
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8
Eigen/src/Core/util/BlasUtil.h
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@ -167,11 +167,9 @@ template<typename XprType> struct blas_traits
IsTransposed = false, IsTransposed = false,
NeedToConjugate = false, NeedToConjugate = false,
HasUsableDirectAccess = ( (int(XprType::Flags)&DirectAccessBit) HasUsableDirectAccess = ( (int(XprType::Flags)&DirectAccessBit)
&& ( /* Uncomment this when the low-level matrix-vector product functions support strided vectors && ( bool(XprType::IsVectorAtCompileTime)
bool(XprType::IsVectorAtCompileTime) || int(inner_stride_at_compile_time<XprType>::ret) == 1)
|| */ ) ? 1 : 0
int(inner_stride_at_compile_time<XprType>::ret) == 1)
) ? 1 : 0
}; };
typedef typename conditional<bool(HasUsableDirectAccess), typedef typename conditional<bool(HasUsableDirectAccess),
ExtractType, ExtractType,

9
test/product_notemporary.cpp
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@ -60,7 +60,7 @@ template<typename MatrixType> void product_notemporary(const MatrixType& m)
m2 = MatrixType::Random(rows, cols), m2 = MatrixType::Random(rows, cols),
m3(rows, cols); m3(rows, cols);
RowVectorType rv1 = RowVectorType::Random(rows), rvres(rows); RowVectorType rv1 = RowVectorType::Random(rows), rvres(rows);
ColVectorType vc2 = ColVectorType::Random(cols), cvres(cols); ColVectorType cv1 = ColVectorType::Random(cols), cvres(cols);
RowMajorMatrixType rm3(rows, cols); RowMajorMatrixType rm3(rows, cols);
Scalar s1 = internal::random<Scalar>(), Scalar s1 = internal::random<Scalar>(),
@ -128,6 +128,13 @@ template<typename MatrixType> void product_notemporary(const MatrixType& m)
// Zero temporaries for ... CoeffBasedProductMode // Zero temporaries for ... CoeffBasedProductMode
// - does not work with GCC because of the <..>, we'ld need variadic macros ... // - does not work with GCC because of the <..>, we'ld need variadic macros ...
//VERIFY_EVALUATION_COUNT( m3.col(0).head<5>() * m3.col(0).transpose() + m3.col(0).head<5>() * m3.col(0).transpose(), 0 ); //VERIFY_EVALUATION_COUNT( m3.col(0).head<5>() * m3.col(0).transpose() + m3.col(0).head<5>() * m3.col(0).transpose(), 0 );
// Check matrix * vectors
VERIFY_EVALUATION_COUNT( cvres.noalias() = m1 * cv1, 0 );
VERIFY_EVALUATION_COUNT( cvres.noalias() -= m1 * cv1, 0 );
VERIFY_EVALUATION_COUNT( cvres.noalias() -= m1 * m2.col(0), 0 );
VERIFY_EVALUATION_COUNT( cvres.noalias() -= m1 * rv1.adjoint(), 0 );
VERIFY_EVALUATION_COUNT( cvres.noalias() -= m1 * m2.row(0).transpose(), 0 );
} }
void test_product_notemporary() void test_product_notemporary()