Hello,
for xGESV and xPOSV exist (DS/ZC)GESV and (DS/ZC)DSPOSV, but I've not found the mixed precision routines for xGELS. Exist any technical or numerical reason because mixed precision for xGELS functions are not implemented?
Thanks
I understand that about the xGELS algorithm the Bjork's method is about speed and the Dmmels et al. one is about precision. Am I right?
Yup. And all these are shooting for speed.For example, in the PLASMA software there is a function called DSUNGESV that uses the Bjork's results to perform a single precision QR decomposition and then make an iterative refinement. In MAGMA there is the DSGEQRSV that apparently does also the GELS in mixed (single/double) precision.
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