missing device implementation of posv

[burlen]

Lapack++ seems to be missing the device implementations of posv. There is currently a cpu only implementation in lapack++ (see src/posv.cc). A device implementation of posv could be potentially be implemented with the already existing building blocks : lapack::potrf and lapack::trsm which both have both cpu and device implementations. We've taken this approach as a work around in our project for the time being.

[mgates3]

We can work to add this. We started with potrf, getrf, geqrf. Adding posv, gesv, gels seems like a good next step.

May I ask what applications you are using LAPACK++ in, particularly if part of ECP?

[burlen]

Sounds good. Our work is on prototyping randomized linear algebra algorithms with an eye toward use on the DOE's exascale systems, but it's not part of the ECP.