tools_operators_procedures.f90 Source File

!
!     (c) 2019 Guide Star Engineering, LLC
!     This Software was developed for the US Nuclear Regulatory Commission (US NRC)
!     under contract "Multi-Dimensional Physics Implementation into Fuel Analysis under
!     Steady-state and Transients (FAST)", contract # NRC-HQ-60-17-C-0007
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!
!    NEMO - Numerical Engine (for) Multiphysics Operators
! Copyright (c) 2007, Stefano Toninel
!                     Gian Marco Bianchi  University of Bologna
!              David P. Schmidt    University of Massachusetts - Amherst
!              Salvatore Filippone University of Rome Tor Vergata
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!---------------------------------------------------------------------------------
!
! $Id: tools_operators.f90 3093 2008-04-22 14:51:09Z sfilippo $
!
! Description:
!    To be added...
!
SUBMODULE(tools_operators) tools_operators_procedures

    IMPLICIT NONE

CONTAINS

    MODULE PROCEDURE pde_sign
        USE class_psblas

        REAL(psb_dpk_) :: dsign

        SELECT CASE(sign)
        CASE('+')
            dsign = 1.d0
        CASE('-')
            dsign = -1.d0
        CASE DEFAULT
            WRITE(*,100)
            CALL abort_psblas
        END SELECT

        IF(side /= lhs_ .AND. side /=rhs_) THEN
            WRITE(*,200)
            CALL abort_psblas
        END IF

        ! By default FSIGN refers to the implicit contributions of the PDE
        ! discretization (to be inserted into PDE%A).

        pde_sign = dsign * side

100     FORMAT(' ERROR! Unsupported operator sign in PDE_SIGN')
200     FORMAT(' ERROR! Illegal value of SIDE argument in PDE_SIGN')

    END PROCEDURE pde_sign


    MODULE PROCEDURE size_blk
        INTEGER, PARAMETER :: nbmax = 40
        INTEGER :: nb

        nb = imax - ifirst + 1
        IF(nb > nbmax) THEN
            size_blk = nbmax
        ELSE
            size_blk = nb
        END IF

    END PROCEDURE size_blk

END SUBMODULE tools_operators_procedures