fix code related issues
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iafoss
113
lib/mesont/LinFun2.f90
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113
lib/mesont/LinFun2.f90
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! ------------ ----------------------------------------------------------
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! LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
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! http://lammps.sandia.gov, Sandia National Laboratories
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! Steve Plimpton, sjplimp@sandia.gov
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!
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! Copyright (2003) Sandia Corporation. Under the terms of Contract
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! DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains
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! certain rights in this software. This software is distributed under
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! the GNU General Public License.
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!
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! See the README file in the top-level LAMMPS directory.
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!
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! Contributing author: Alexey N. Volkov, UA, avolkov1@ua.edu
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!-------------------------------------------------------------------------
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module LinFun2 !************************************************************************************
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!
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! TMD Library: Bi-linear functions and their derivatives
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!
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!---------------------------------------------------------------------------------------------------
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!
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! Intel Fortran
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!
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! Alexey N. Volkov, University of Alabama, avolkov1@ua.edu, Version 09.01, 2017
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!
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!***************************************************************************************************
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use iso_c_binding, only : c_int, c_double, c_char
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implicit none
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contains !******************************************************************************************
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real(c_double) function CalcLinFun1_0 ( i, X, N, P, F ) !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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integer(c_int), intent(in) :: i, N
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real(c_double), intent(in) :: X
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real(c_double), dimension(0:N-1), intent(in) :: P
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real(c_double), dimension(0:N-1), intent(inout) :: F
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integer(c_int) :: i1
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real(c_double) :: A, A0
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!-------------------------------------------------------------------------------------------
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i1 = i - 1
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A0 = ( P(i) - X ) / ( P(i) - P(i1) )
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A = 1.0d+00 - A0
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CalcLinFun1_0 = A0 * F(i1) + A * F(i)
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end function CalcLinFun1_0 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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subroutine CalcLinFun1_1 ( S, Sx1, i, X, N, P, F, Fx ) !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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real(c_double), intent(out) :: S, Sx1
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integer(c_int), intent(in) :: i, N
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real(c_double), intent(in) :: X
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real(c_double), dimension(0:N-1), intent(in) :: P
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real(c_double), dimension(0:N-1), intent(inout) :: F, Fx
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integer(c_int) :: i1
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real(c_double) :: A, A0
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!-------------------------------------------------------------------------------------------
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i1 = i - 1
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A0 = ( P(i) - X ) / ( P(i) - P(i1) )
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A = 1.0d+00 - A0
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S = A0 * F(i1) + A * F(i)
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Sx1 = A0 * Fx(i1) + A * Fx(i)
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end subroutine CalcLinFun1_1 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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real(c_double) function CalcLinFun2_0 ( i, j, X, Y, N1, N2, P1, P2, F ) !!
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integer(c_int), intent(in) :: i, j, N1, N2
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real(c_double), intent(in) :: X, Y
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real(c_double), dimension(0:N1-1), intent(in) :: P1
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real(c_double), dimension(0:N2-1), intent(in) :: P2
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real(c_double), dimension(0:N1-1,0:N2-1), intent(inout) :: F
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integer(c_int) :: i1, j1
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real(c_double) :: A, A0, B, B0, G, G0
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!-------------------------------------------------------------------------------------------
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i1 = i - 1
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j1 = j - 1
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A0 = ( P1(i) - X ) / ( P1(i) - P1(i1) )
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A = 1.0d+00 - A0
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B0 = ( P2(j) - Y ) / ( P2(j) - P2(j1) )
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B = 1.0d+00 - B0
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G = B0 * F(i,j1) + B * F(i,j)
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G0 = B0 * F(i1,j1) + B * F(i1,j)
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CalcLinFun2_0 = A0 * G0 + A * G
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end function CalcLinFun2_0 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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subroutine CalcLinFun2_1 ( S, Sx1, Sy1, i, j, X, Y, N1, N2, P1, P2, F, Fx, Fy ) !!!!!!!!!!!!
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real(c_double), intent(out) :: S, Sx1, Sy1
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integer(c_int), intent(in) :: i, j, N1, N2
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real(c_double), intent(in) :: X, Y
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real(c_double), dimension(0:N1-1), intent(in) :: P1
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real(c_double), dimension(0:N2-1), intent(in) :: P2
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real(c_double), dimension(0:N1-1,0:N2-1), intent(inout) :: F, Fx, Fy
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integer(c_int) :: i1, j1
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real(c_double) :: A, A0, B, B0, G, G0
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!-------------------------------------------------------------------------------------------
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i1 = i - 1
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j1 = j - 1
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A0 = ( P1(i) - X ) / ( P1(i) - P1(i1) )
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A = 1.0d+00 - A0
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B0 = ( P2(j) - Y ) / ( P2(j) - P2(j1) )
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B = 1.0d+00 - B0
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G = B0 * F(i,j1) + B * F(i,j)
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G0 = B0 * F(i1,j1) + B * F(i1,j)
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S = A0 * G0 + A * G
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G = B0 * Fx(i,j1) + B * Fx(i,j)
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G0 = B0 * Fx(i1,j1) + B * Fx(i1,j)
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Sx1 = A0 * G0 + A * G
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G = B0 * Fy(i,j1) + B * Fy(i,j)
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G0 = B0 * Fy(i1,j1) + B * Fy(i1,j)
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Sy1 = A0 * G0 + A * G
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end subroutine CalcLinFun2_1 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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end module LinFun2 !********************************************************************************
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