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author | Gael Guennebaud <g.gael@free.fr> | 2008-04-09 12:31:55 +0000 |
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committer | Gael Guennebaud <g.gael@free.fr> | 2008-04-09 12:31:55 +0000 |
commit | 1985fb0551837fd5017858d6d7e82fd110294cfa (patch) | |
tree | c111f53b27d6ef2d3ee9128c774bd4b34e0488ae /Eigen/src/Core/Random.h | |
parent | 4920f2011e8acd0e44c0c6646843d5ca5d79b68c (diff) |
Added initial experimental support for explicit vectorization.
Currently only the following platform/operations are supported:
- SSE2 compatible architecture
- compiler compatible with intel's SSE2 intrinsics
- float, double and int data types
- fixed size matrices with a storage major dimension multiple of 4 (or 2 for double)
- scalar-matrix product, component wise: +,-,*,min,max
- matrix-matrix product only if the left matrix is vectorizable and column major
or the right matrix is vectorizable and row major, e.g.:
a.transpose() * b is not vectorized with the default column major storage.
To use it you must define EIGEN_VECTORIZE and EIGEN_INTEL_PLATFORM.
Diffstat (limited to 'Eigen/src/Core/Random.h')
-rw-r--r-- | Eigen/src/Core/Random.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Eigen/src/Core/Random.h b/Eigen/src/Core/Random.h index 7ac3633fe..4d6a21da4 100644 --- a/Eigen/src/Core/Random.h +++ b/Eigen/src/Core/Random.h @@ -41,7 +41,7 @@ struct ei_traits<Random<MatrixType> > ColsAtCompileTime = ei_traits<MatrixType>::ColsAtCompileTime, MaxRowsAtCompileTime = ei_traits<MatrixType>::MaxRowsAtCompileTime, MaxColsAtCompileTime = ei_traits<MatrixType>::MaxColsAtCompileTime, - Flags = ei_traits<MatrixType>::Flags | EvalBeforeNestingBit, + Flags = (ei_traits<MatrixType>::Flags | EvalBeforeNestingBit) & ~VectorizableBit, CoeffReadCost = 2 * NumTraits<Scalar>::MulCost // FIXME: arbitrary value }; }; |