Benoit Jacob
43e2bc14fe
+5% optimization in 4x4 inverse:
...
-only evaluate block expressions for which that is beneficial
-don't check for invertibility unless requested
2008-04-15 20:39:27 +00:00
Benoit Jacob
6747b45ae7
for 4x4 matrices implement the special algorithm that Markos proposed,
...
falling back to the general algorithm in the bad case.
2008-04-15 20:15:36 +00:00
Benoit Jacob
2a86f052a5
- optimized determinant calculations for small matrices (size <= 4)
...
(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.
2008-04-14 17:07:12 +00:00
Benoit Jacob
ea3ccb1e8c
* Start of the LU module, with matrix inversion already there and
...
fully optimized.
* Even if LargeBit is set, only parallelize for large enough objects
(controlled by EIGEN_PARALLELIZATION_TRESHOLD).
2008-04-14 08:20:24 +00:00
