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! -----------------------------------------------------------------
! Programmer(s): Cody J. Balos @ LLNL
! -----------------------------------------------------------------
! SUNDIALS Copyright Start
! Copyright (c) 2002-2022, Lawrence Livermore National Security
! and Southern Methodist University.
! All rights reserved.
!
! See the top-level LICENSE and NOTICE files for details.
!
! SPDX-License-Identifier: BSD-3-Clause
! SUNDIALS Copyright End
! -----------------------------------------------------------------
! This file tests the Fortran 2003 interface to the SUNDIALS
! dense SUNMatrix implementation.
! -----------------------------------------------------------------
module test_fsunmatrix_dense
use, intrinsic :: iso_c_binding
use test_utilities
implicit none
integer(C_LONG_LONG), parameter :: N = 4
contains
integer(C_INT) function smoke_tests() result(fails)
!======== Inclusions ==========
use, intrinsic :: iso_c_binding
use fsundials_nvector_mod
use fsundials_matrix_mod
use fsunmatrix_dense_mod
use fnvector_serial_mod
!======== Declarations ========
implicit none
! local variables
type(SUNMatrix), pointer :: A, B ! SUNMatrix
type(N_Vector), pointer :: x, y ! NVectors
real(C_DOUBLE), pointer :: matdat(:) ! matrix data pointer
integer(C_LONG) :: lenrw(1), leniw(1) ! matrix real and int work space size
integer(C_LONG) :: val
fails = 0
x => FN_VNew_Serial(N, sunctx)
y => FN_VNew_Serial(N, sunctx)
!===== Calls to interface =====
! constructor
A => FSUNDenseMatrix(N, N, sunctx)
if (.not. associated(A)) then
print *,'>>> FAILED - ERROR in FSUNDenseMatrix; halting'
stop 1
end if
! misc. matrix functions
val = FSUNMatGetID_Dense(A)
val = FSUNDenseMatrix_Rows(A)
val = FSUNDenseMatrix_Columns(A)
val = FSUNDenseMatrix_LData(A)
matdat => FSUNDenseMatrix_Data(A)
matdat => FSUNDenseMatrix_Column(A,N)
! matrix operations
B => FSUNMatClone_Dense(A)
if (.not. associated(B)) then
print *,'>>> FAILED - ERROR in FSUNMatClone_Dense; halting'
stop 1
end if
fails = fails + FSUNMatZero_Dense(A)
fails = fails + FSUNMatCopy_Dense(A,B)
fails = fails + FSUNMatScaleAdd_Dense(ONE, A, B)
fails = fails + FSUNMatScaleAddI_Dense(ONE, A)
fails = fails + FSUNMatMatvec_Dense(A, x, y)
fails = fails + FSUNMatSpace_Dense(A, lenrw, leniw)
!======= Cleanup ===========
call FSUNMatDestroy_Dense(A)
call FSUNMatDestroy_Dense(B)
call FN_VDestroy_Serial(x)
call FN_VDestroy_Serial(y)
end function smoke_tests
integer(C_INT) function unit_tests() result(fails)
use, intrinsic :: iso_c_binding
use fsundials_nvector_mod
use fsundials_matrix_mod
use fnvector_serial_mod
use fsunmatrix_dense_mod
use test_sunmatrix
implicit none
type(SUNMatrix), pointer :: A, I
type(N_Vector), pointer :: x, y
real(C_DOUBLE), pointer :: Adata(:), Idata(:), xdata(:), ydata(:)
integer(C_LONG) :: ii, jj, tmp1, tmp2
fails = 0
A => FSUNDenseMatrix(N, N, sunctx)
I => FSUNDenseMatrix(N, N, sunctx)
x => FN_VNew_Serial(N, sunctx)
y => FN_VNew_Serial(N, sunctx)
! fill matrix A
Adata => FSUNDenseMatrix_Data(A)
do jj=1, N
do ii=1, N
Adata((jj-1)*N + ii) = jj*(ii+jj-2)
end do
end do
! fill matrix I (identity)
Idata => FSUNDenseMatrix_Data(I)
do jj=1, N
Idata((jj-1)*N + jj) = ONE
end do
! fill vector x
xdata => FN_VGetArrayPointer(x)
do ii=1, N
xdata(ii) = ONE / ii
end do
! fill vector y
ydata => FN_VGetArrayPointer(y)
do ii=1, N
tmp1 = ii-1
tmp2 = tmp1 + N - 1
ydata(ii) = HALF*(tmp2+1-tmp1)*(tmp1+tmp2)
end do
fails = fails + Test_FSUNMatGetID(A, SUNMATRIX_DENSE, 0)
fails = fails + Test_FSUNMatClone(A, 0)
fails = fails + Test_FSUNMatCopy(A, 0)
fails = fails + Test_FSUNMatZero(A, 0)
fails = fails + Test_FSUNMatScaleAdd(A, I, 0)
fails = fails + Test_FSUNMatScaleAddI(A, I, 0)
fails = fails + Test_FSUNMatMatvec(A, x, y, 0)
fails = fails + Test_FSUNMatSpace(A, 0)
! cleanup
call FSUNMatDestroy(A)
call FSUNMatDestroy(I)
call FN_VDestroy(x)
call FN_VDestroy(y)
end function unit_tests
end module
program main
!======== Inclusions ==========
use, intrinsic :: iso_c_binding
use test_fsunmatrix_dense
!======== Declarations ========
implicit none
integer(C_INT) :: fails = 0
!============== Introduction =============
print *, 'Dense SUNMatrix Fortran 2003 interface test'
call Test_Init(c_null_ptr)
fails = unit_tests()
if (fails /= 0) then
print *, 'FAILURE: n unit tests failed'
stop 1
else
print *, 'SUCCESS: all unit tests passed'
end if
call Test_Finalize()
end program main
! exported functions used by test_sunmatrix
integer(C_INT) function check_matrix(A, B, tol) result(fails)
use, intrinsic :: iso_c_binding
use fsundials_matrix_mod
use fsunmatrix_dense_mod
use test_utilities
implicit none
type(SUNMatrix) :: A, B
real(C_DOUBLE) :: tol
real(C_DOUBLE), pointer :: Adata(:), Bdata(:)
integer(C_LONG) :: Aldata, Bldata, i
fails = 0
! get data pointers
Adata => FSUNDenseMatrix_Data(A)
Bdata => FSUNDenseMatrix_Data(B)
! get and check data lengths
Aldata = FSUNDenseMatrix_LData(A)
Bldata = FSUNDenseMatrix_LData(B)
if (Aldata /= Bldata) then
print *, ">>> ERROR: check_matrix: Different data array lengths"
fails = 1
return
end if
! compare data
do i=1, Aldata
fails = fails + FNEQTOL(Adata(i), Bdata(i), tol)
end do
end function check_matrix
integer(C_INT) function check_matrix_entry(A, c, tol) result(fails)
use, intrinsic :: iso_c_binding
use fsundials_matrix_mod
use fsunmatrix_dense_mod
use test_utilities
implicit none
type(SUNMatrix) :: A
real(C_DOUBLE) :: c, tol
real(C_DOUBLE), pointer :: Adata(:)
integer(C_LONG) :: Aldata, i
fails = 0
! get data pointers
Adata => FSUNDenseMatrix_Data(A)
! get and check data lengths
Aldata = FSUNDenseMatrix_LData(A)
! compare data
do i=1, Aldata
fails = fails + FNEQTOL(Adata(i), c, tol)
end do
if (fails > ZERO) then
print *, ">>> ERROR: check_matrix_entry failures: "
do i=1, Aldata
if (FNEQTOL(Adata(i), c, tol) /= 0) then
write(*,'(A,I0,A,E14.7,A,E14.7)') &
"Adata[ ", i, "] =", Adata(i) ," c = ", c
end if
end do
end if
end function check_matrix_entry
logical function is_square(A) result(res)
use, intrinsic :: iso_c_binding
use fsundials_matrix_mod
use fsunmatrix_dense_mod
implicit none
type(SUNMatrix) :: A
if (FSUNDenseMatrix_Rows(A) == FSUNDenseMatrix_Columns(A)) then
res = .true.
else
res = .false.
end if
end function is_square
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