Created attachment 386 [details] Fixed CholmodSupport.h file When using Cholmod* classes (CholmodSupport/CholmodSupport.h), I sometimes got incorrect results (depending on solver object initialisation). After checking with valgrind, I've noticed that the solver uses uninitialised values, which should default to zero. If I was lucky enough, they were zero indeed, leading to correct results. The above-mentioned uninitialised values are: RealScalar m_shiftOffset[2] field in CholmodBase class, which is only initialised in the second constructor, but not in the default one - CholmodBase() res.z and res.nz fields in the first viewAsCholmod() function: template<typename _Scalar, int _Options, typename _Index> cholmod_sparse viewAsCholmod(SparseMatrix<_Scalar,_Options,_Index>& mat) I attach the fixed CholmodSupport.h file (based on 3.2.0 stable release). Thank you for creating such a great tool! Michael
Thanks for the report. Fixed in default and 3.2: https://bitbucket.org/eigen/eigen/commits/f9490fb8eb1efa1fa08b5bc62e8888cf0eb89cfe
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