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PDGEHRD functionality and documentation mismatch

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PDGEHRD functionality and documentation mismatch

Postby granat » Tue Mar 04, 2008 5:37 am

According to the alignment requirements for PDGEHRD, it is enough to have IROFFA.EQ.ICOFFA. However, in the test for the input parameters, we find the following test:

ELSE IF( IROFFA.NE.ICOFFA .OR. IROFFA.NE.0 ) THEN
INFO = -6

where the first part is relevant but the second part (after .OR.) is a bit strange since it does not match the alignment requirements but puts a harder limit on what problems that can be entered into PDGEHRD (the first block row or columns of the considered submatrix must be a full block row or column).

What is wrong - the documentation or the test? Anyone?
granat
 
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