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Added support for 32bit index on a per tensor/tensor expression. This enables us to use 32bit indices to evaluate expressions on GPU faster while keeping the ability to use 64 bit indices to manipulate large tensors on CPU in the same binary.

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Benoit Steiner
2015-02-27 12:57:13 -08:00
parent 05089aba75
commit 2386fc8528
6 changed files with 102 additions and 23 deletions
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6
Eigen/src/Core/util/Constants.h
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@@ -296,7 +296,11 @@ enum {
/** Align the matrix itself if it is vectorizable fixed-size */
AutoAlign = 0,
/** Don't require alignment for the matrix itself (the array of coefficients, if dynamically allocated, may still be requested to be aligned) */ // FIXME --- clarify the situation
DontAlign = 0x2
DontAlign = 0x2,
/** Use the DenseIndex type to index the matrix/array/tensor. Unless otherwise specified by defining EIGEN_DEFAULT_DENSE_INDEX_TYPE, DenseIndex is a ptrdiff_t. */
IndexDefault = 0,
/** Use 32bit signed integers to index the matrix/array/tensor. */
Index32Bit = 0x4
};
/** \ingroup enums