https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Four-execution-steps/m-p/876385#M8988 Hello,<BR /><BR />No, you can not avoid this steps in both of this cases. That steps are an important stages of the solution process. One-based indexing is just a legacy of FORTRAN using.<BR /><BR />Best regards,<BR />Artem Sun, 11 Apr 2010 21:22:20 GMT Artem_V_Intel 2010-04-11T21:22:20Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Four-execution-steps/m-p/876384#M8987 <P>Acording to manual, steps to be made using PARDISO are :</P> <P>PARDISO performs four tasks:<BR />(1) analysis and symbolic factorization (phase = 11)<BR />(2) numerical factorization (phase = 22)<BR />(3) forward and backward substitution including iterative refinement (phase = 33)<BR />(4) termination to release all internal solver memory (phase = -2)</P> <P></P> <P>If I have one-based indexing matrix (nonzeros, columns indecies, and first of row element indices) - can I :</P> <P></P> <P>[1] avoid step (3)</P> <P>[2] avoid step (2) and (3)</P> Fri, 05 Mar 2010 14:12:48 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Four-execution-steps/m-p/876384#M8987 programmer85 2010-03-05T14:12:48Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Four-execution-steps/m-p/876385#M8988 Hello,<BR /><BR />No, you can not avoid this steps in both of this cases. That steps are an important stages of the solution process. One-based indexing is just a legacy of FORTRAN using.<BR /><BR />Best regards,<BR />Artem Sun, 11 Apr 2010 21:22:20 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Four-execution-steps/m-p/876385#M8988 Artem_V_Intel 2010-04-11T21:22:20Z