GitLab

trunk: modifications to the cudamatrix library, mostly to improve the speed of symmetric positive definite matrix inversion, but also misc. other small imrpovements.

git-svn-id: https://svn.code.sf.net/p/kaldi/code/trunk@4046 5e6a8d80-dfce-4ca6-a32a-6e07a63d50c8