https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/PARDISO-error-flags/m-p/862056#M7575 <BR />there are no more details on this topic for now. It make sence to add such a detailed desciption in the MKL Reference Manual in the future.<BR /><BR /> Tue, 15 Dec 2009 13:42:57 GMT Gennady_F_Intel 2009-12-15T13:42:57Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/PARDISO-error-flags/m-p/862055#M7574 PARDISO error flags -3, -6, and -7 are not so clear to me. <BR /><BR />-3 reordering problem<BR />-6 preordering failed (matrix types 11, 13 only)<BR />-7 diagonal matrix problem<BR /><BR />I typically get these errors when a given matrix is singular but I want to know exactly what went wrong. Is there any reference that explains more about these error flags?<BR /><BR />Thanks.<BR /><BR />Jaewon<BR /><BR /><BR /><BR /> Mon, 14 Dec 2009 17:09:56 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/PARDISO-error-flags/m-p/862055#M7574 jaewonj 2009-12-14T17:09:56Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/PARDISO-error-flags/m-p/862056#M7575 <BR />there are no more details on this topic for now. It make sence to add such a detailed desciption in the MKL Reference Manual in the future.<BR /><BR /> Tue, 15 Dec 2009 13:42:57 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/PARDISO-error-flags/m-p/862056#M7575 Gennady_F_Intel 2009-12-15T13:42:57Z