INSTALL/droundup_lwork.f(3)                           Library Functions Manual

NAME
       INSTALL/droundup_lwork.f

SYNOPSIS
   Functions/Subroutines
       double precision function droundup_lwork (lwork)
           DROUNDUP_LWORK

Function/Subroutine Documentation
   double precision function droundup_lwork (integer lwork)
       DROUNDUP_LWORK

       Purpose:


            DROUNDUP_LWORK deals with a subtle bug with returning LWORK as a Float.
            This routine guarantees it is rounded up instead of down by
            multiplying LWORK by 1+eps when it is necessary, where eps is the relative machine precision.
            E.g.,

                   float( 9007199254740993            ) == 9007199254740992
                   float( 9007199254740993 ) * (1.+eps) == 9007199254740994

            \return DROUNDUP_LWORK
            \verbatim
                    DROUNDUP_LWORK >= LWORK.
                    DROUNDUP_LWORK is guaranteed to have zero decimal part.

       Parameters
           LWORK Workspace size.

       Author
           Weslley Pereira, University of Colorado Denver, USA

       Further Details:


             This routine was inspired in the method `magma_zmake_lwork` from MAGMA.
             \see https://bitbucket.org/icl/magma/src/master/control/magma_zauxiliary.cpp

       Definition at line 58 of file droundup_lwork.f.

Author
       Generated automatically by Doxygen for LAPACK from the source code.

LAPACK                          Version 3.12.0     INSTALL/droundup_lwork.f(3)