PARDISO version in MKL

[AndrewC]

Can someone comment on exactly what version of PARDISO is in MKL? MKL 8.1 finally has a version of PARDISO that supports mtype=-2 ( real symmetric indefinite), but I am having some issues with convergence when using PARDISO with ARPACK to find eigenvalues of a vibration problem in ARPACK shift and invert mode.

The PARDISO web site has no download for Windows, so I cannot test whether the "latest" PARDISO behaves differently to the MKL version.

Also, it is a bit unclear as to the relationship of PARIDSO to the dss_ routines. Are the dss_ routines likely to be numerically "better" than PARDISO? Or better supported in the future?

[Todd_R_Intel]

DSS is an alternativeinterface to the same solver, so in answer to your second question, there should be no difference in numerical results excepting of course cases where the user interface exposes or limits options in the other interface. In answer to your third question,I don't know of any plans to drop support for either interface.

Todd

[AndrewC]

So no point in wasting my time trying to use the dss_ interfaces.

So back to my first question... what "version" of PARDISO is in MKL 8.1.