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alloc.f90
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alloc.f90
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!=======================================================================
! This is part of the 2DECOMP&FFT library
!
! 2DECOMP&FFT is a software framework for general-purpose 2D (pencil)
! decomposition. It also implements a highly scalable distributed
! three-dimensional Fast Fourier Transform (FFT).
!
! Copyright (C) 2009-2012 Ning Li, the Numerical Algorithms Group (NAG)
!
!=======================================================================
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
! Utility routine to help allocate 3D arrays
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
! X-pencil real arrays
subroutine alloc_x_real(var, opt_decomp, opt_global)
implicit none
real(mytype), allocatable, dimension(:,:,:) :: var
TYPE(DECOMP_INFO), intent(IN), optional :: opt_decomp
logical, intent(IN), optional :: opt_global
TYPE(DECOMP_INFO) :: decomp
logical :: global
integer :: alloc_stat, errorcode
if (present(opt_decomp)) then
decomp = opt_decomp
else
decomp = decomp_main
end if
if (present(opt_global)) then
global = opt_global
else
global = .false.
end if
if (global) then
allocate(var(decomp%xst(1):decomp%xen(1), &
decomp%xst(2):decomp%xen(2), decomp%xst(3):decomp%xen(3)), &
stat=alloc_stat)
else
allocate(var(decomp%xsz(1),decomp%xsz(2),decomp%xsz(3)), &
stat=alloc_stat)
end if
if (alloc_stat /= 0) then
errorcode = 8
call decomp_2d_abort(errorcode, &
'Memory allocation failed when creating new arrays')
end if
return
end subroutine alloc_x_real
! X-pencil complex arrays
subroutine alloc_x_complex(var, opt_decomp, opt_global)
implicit none
complex(mytype), allocatable, dimension(:,:,:) :: var
TYPE(DECOMP_INFO), intent(IN), optional :: opt_decomp
logical, intent(IN), optional :: opt_global
TYPE(DECOMP_INFO) :: decomp
logical :: global
integer :: alloc_stat, errorcode
if (present(opt_decomp)) then
decomp = opt_decomp
else
decomp = decomp_main
end if
if (present(opt_global)) then
global = opt_global
else
global = .false.
end if
if (global) then
allocate(var(decomp%xst(1):decomp%xen(1), &
decomp%xst(2):decomp%xen(2), decomp%xst(3):decomp%xen(3)), &
stat=alloc_stat)
else
allocate(var(decomp%xsz(1),decomp%xsz(2),decomp%xsz(3)), &
stat=alloc_stat)
end if
if (alloc_stat /= 0) then
errorcode = 8
call decomp_2d_abort(errorcode, &
'Memory allocation failed when creating new arrays')
end if
return
end subroutine alloc_x_complex
! Y-pencil real arrays
subroutine alloc_y_real(var, opt_decomp, opt_global)
implicit none
real(mytype), allocatable, dimension(:,:,:) :: var
TYPE(DECOMP_INFO), intent(IN), optional :: opt_decomp
logical, intent(IN), optional :: opt_global
TYPE(DECOMP_INFO) :: decomp
logical :: global
integer :: alloc_stat, errorcode
if (present(opt_decomp)) then
decomp = opt_decomp
else
decomp = decomp_main
end if
if (present(opt_global)) then
global = opt_global
else
global = .false.
end if
if (global) then
allocate(var(decomp%yst(1):decomp%yen(1), &
decomp%yst(2):decomp%yen(2), decomp%yst(3):decomp%yen(3)), &
stat=alloc_stat)
else
allocate(var(decomp%ysz(1),decomp%ysz(2),decomp%ysz(3)), &
stat=alloc_stat)
end if
if (alloc_stat /= 0) then
errorcode = 8
call decomp_2d_abort(errorcode, &
'Memory allocation failed when creating new arrays')
end if
return
end subroutine alloc_y_real
! Y-pencil complex arrays
subroutine alloc_y_complex(var, opt_decomp, opt_global)
implicit none
complex(mytype), allocatable, dimension(:,:,:) :: var
TYPE(DECOMP_INFO), intent(IN), optional :: opt_decomp
logical, intent(IN), optional :: opt_global
TYPE(DECOMP_INFO) :: decomp
logical :: global
integer :: alloc_stat, errorcode
if (present(opt_decomp)) then
decomp = opt_decomp
else
decomp = decomp_main
end if
if (present(opt_global)) then
global = opt_global
else
global = .false.
end if
if (global) then
allocate(var(decomp%yst(1):decomp%yen(1), &
decomp%yst(2):decomp%yen(2), decomp%yst(3):decomp%yen(3)), &
stat=alloc_stat)
else
allocate(var(decomp%ysz(1),decomp%ysz(2),decomp%ysz(3)), &
stat=alloc_stat)
end if
if (alloc_stat /= 0) then
errorcode = 8
call decomp_2d_abort(errorcode, &
'Memory allocation failed when creating new arrays')
end if
return
end subroutine alloc_y_complex
! Z-pencil real arrays
subroutine alloc_z_real(var, opt_decomp, opt_global)
implicit none
real(mytype), allocatable, dimension(:,:,:) :: var
TYPE(DECOMP_INFO), intent(IN), optional :: opt_decomp
logical, intent(IN), optional :: opt_global
TYPE(DECOMP_INFO) :: decomp
logical :: global
integer :: alloc_stat, errorcode
if (present(opt_decomp)) then
decomp = opt_decomp
else
decomp = decomp_main
end if
if (present(opt_global)) then
global = opt_global
else
global = .false.
end if
if (global) then
allocate(var(decomp%zst(1):decomp%zen(1), &
decomp%zst(2):decomp%zen(2), decomp%zst(3):decomp%zen(3)), &
stat=alloc_stat)
else
allocate(var(decomp%zsz(1),decomp%zsz(2),decomp%zsz(3)), &
stat=alloc_stat)
end if
if (alloc_stat /= 0) then
errorcode = 8
call decomp_2d_abort(errorcode, &
'Memory allocation failed when creating new arrays')
end if
return
end subroutine alloc_z_real
! Z-pencil complex arrays
subroutine alloc_z_complex(var, opt_decomp, opt_global)
implicit none
complex(mytype), allocatable, dimension(:,:,:) :: var
TYPE(DECOMP_INFO), intent(IN), optional :: opt_decomp
logical, intent(IN), optional :: opt_global
TYPE(DECOMP_INFO) :: decomp
logical :: global
integer :: alloc_stat, errorcode
if (present(opt_decomp)) then
decomp = opt_decomp
else
decomp = decomp_main
end if
if (present(opt_global)) then
global = opt_global
else
global = .false.
end if
if (global) then
allocate(var(decomp%zst(1):decomp%zen(1), &
decomp%zst(2):decomp%zen(2), decomp%zst(3):decomp%zen(3)), &
stat=alloc_stat)
else
allocate(var(decomp%zsz(1),decomp%zsz(2),decomp%zsz(3)), &
stat=alloc_stat)
end if
if (alloc_stat /= 0) then
errorcode = 8
call decomp_2d_abort(errorcode, &
'Memory allocation failed when creating new arrays')
end if
return
end subroutine alloc_z_complex