lapackers

[julie langou <julie@cs.utk.edu>]

Thank you very much Sven.

ROTM is actually used in LAPACK by some new routines.

I believe I will change the GOTO in DROTMG, and proceed to further change in the BLAS (adding testing)  for the next major Release.

Best,

Julie

On Mar 15, 2011, at 2:19 PM, Sven Hammarling wrote:

Hi Julie,

drotmg and srotmg are part of the original BLAS (the we now call the Level 1 BLAS).  drotm and srotm are also part of the original BLAS and do not seem to be tested either.  I imagine that because LAPACK does not use them, those tests got eliminated.

If you go to the ACM Collected algorithms (www.netlib.org/toms/) you can find original source of the BLAS as algorithm 539.  There is a tester for the modified Givens routines as part of algorithm 539.

At least two other routines, sdsdot and dsdot are also part of the original BLAS and I think that they have been dropped completely from the LAPACK set.  But, again they are in the ACM collection and are tested there.

Hope that helps, best wishes,

Sven.

**********************************************

Julie Langou; Research Associate in Computer Science

Innovative Computing Laboratory;

University of Tennessee from Denver, Colorado ;-)

julie@cs.utk.edu; http://www.cs.utk.edu/~julie/