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improve porting-Eigen2-to-3 docs
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* various improvements in BTL including trisolver and cholesky bench
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* added some tests for product and swap
* overload .swap() for dynamic-sized matrix of same size
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** Much better organization
** Fix a few bugs
** Add the ability to unroll only the inner loop
** Add an unrolled path to the Like1D vectorization. Not well tested.
** Add placeholder for sliced vectorization. Unimplemented.
* Rework of corrected_flags:
** improve rules determining vectorizability
** for vectors, the storage-order is indifferent, so we tweak it
to allow vectorization of row-vectors.
* fix compilation in benchmark, and a warning in Transpose.
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* Fix several warnings, temporarily disable determinant test.
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in benchmark. Still not as fasts as explicit eval(), strangely.
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Added a test for Triangular.
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(only 30 muls for size 4)
- rework the matrix inversion: now using cofactor technique for size<=3,
so the ugly unrolling is only used for size 4 anymore, and even there
I'm looking to get rid of it.
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* Use them to write an unrolled path in echelon.cpp, as an
experiment before I do this LU module.
* For floating-point types, make ei_random() use an amplitude
of 1.
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using a macro and _Pragma.
- use OpenMP also in cacheOptimalProduct and in the
vectorized paths as well
- kill the vector assignment unroller. implement in
operator= the logic for assigning a row-vector in
a col-vector.
- CMakeLists support for building tests/examples
with -fopenmp and/or -msse2
- updates in bench/, especially replace identity()
by ones() which prevents underflows from perturbing
bench results.
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* rename OperatorEquals -> Assign
* move Util.h and FwDecl.h to a util/ subdir
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- make use of CoeffReadCost to determine when to unroll the loops,
for now only in Product.h and in OperatorEquals.h
performance remains the same: generally still not as good as before the
big changes.
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internaly uses OpenMP if enabled at compile time.
* added a bench/ folder with a couple benchmarks and benchmark tools.
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Thomas Capricelli
Benoit Jacob
Gael Guennebaud