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|
! This file is part of FBUF - Fortran BUFfers For Accelerators
! Copyright 2018 Pietro Bonfa'
! License: GPLv2
!!!!! DO NOT EDIT THIS FILE, IT'S AUTOGENERATED !!!!!
!> The **FBUF** module.
module {{modulename}}
#if defined(__CUDA)
{{cudamod}}
#endif
implicit none
integer, parameter :: DP = selected_real_kind(14,200)
integer, parameter :: LLI = selected_int_kind(15)
TYPE :: Node
#if defined(__CUDA)
BYTE, POINTER {% if (attributes) %}, {{attributes}} {% endif %} :: space(:)
#else
BYTE, POINTER :: space(:)
#endif
LOGICAL :: locked
TYPE(Node), POINTER :: Next
END TYPE Node
!
private
!
TYPE(Node), POINTER :: Head => null()
!
public :: {{typename}}
!
!> The main **fbuf** class.
type :: {{typename}}
logical :: verbose = .false.
!
contains
procedure :: init !< Initialize the class selecting buffers dimension and number per type.\
final :: clean
procedure :: reinit
procedure :: dealloc
generic, public :: lock_buffer => &
{%- for item in interfaces %}
lock_buffer_{{item.subname}}{% if not loop.last %}, &{% endif %} !< Releases a {{item.vtype}} {{item.vrankname}} buffer
{%- endfor%}
!
{%- for item in interfaces %}
procedure, private :: lock_buffer_{{item.subname}} !< Releases a {{item.vtype}} {{item.vrankname}} buffer
{%- endfor %}
!
generic, public :: release_buffer => &
{%- for item in interfaces %}
release_buffer_{{item.subname}}{% if not loop.last %}, &{% endif %} !< Releases a {{item.vtype}} {{item.vrankname}} buffer
{%- endfor %}
!
{%- for item in interfaces %}
procedure, private :: release_buffer_{{item.subname}} !< Releases a {{item.vtype}} {{item.vrankname}} buffer
{%- endfor %}
!
generic, public :: prepare_buffer => &
{%- for item in interfaces %}
prepare_buffer_{{item.subname}}{% if not loop.last %}, &{% endif %} !< Releases a {{item.vtype}} {{item.vrankname}} buffer
{%- endfor %}
!
{%- for item in interfaces %}
procedure, private :: prepare_buffer_{{item.subname}} !< Releases a {{item.vtype}} {{item.vrankname}} buffer
{%- endfor %}
!
procedure, private :: lock_space
procedure, private :: prepare_space
procedure, private :: release_space
procedure, public :: dump_status
procedure, public :: print_report
end type
contains
!> Initialize the class selecting the device type.
subroutine init(this, info, verbose)
use iso_c_binding
implicit none
class({{typename}}), intent(inout) :: this !< The class.
integer, intent(out) :: info !< Error reporting.
!< 0: ok
!< -1: generic error
logical, optional, intent(in) :: verbose
!
this%verbose = .false.
if (present(verbose)) this%verbose = verbose
if (this%verbose) write (*, *) "[{{modulename}}] Initializing buffers"
NULLIFY (Head)
info = 0
!
end subroutine init
!
subroutine clean(this)
implicit none
type({{typename}}) :: this !< The class.
call this%dealloc()
end subroutine clean
!
subroutine dealloc(this)
use iso_c_binding
implicit none
class({{typename}}) :: this !< The class.
integer :: i, info
TYPE(Node), POINTER :: temp
i = 0
DO WHILE (ASSOCIATED(head))
#if defined (__CUDA)
{% if attributes == 'device' %}
IF ( ASSOCIATED(head%space) ) DEALLOCATE(head%space)
{% else %}
IF ( ASSOCIATED(head%space) ) info = cudaFreeHost(c_loc(head%space))
{% endif %}
#else
IF ( ASSOCIATED(head%space) ) DEALLOCATE(head%space)
#endif
temp => head
head => head%next
DEALLOCATE(temp)
i = i + 1
END DO
NULLIFY (Head)
if (this%verbose) write (*, '("[{{modulename}}] Cleaned ", I2, " buffers")') i
end subroutine dealloc
!
subroutine reinit(this, info)
use iso_c_binding
implicit none
class({{typename}}), intent(inout) :: this !< The class.
integer, intent(out) :: info !< 0 -> ok ; -n -> failed, n buffers still allocated
integer :: l
TYPE(Node), POINTER :: temp
temp => Head
l = 0
DO WHILE (ASSOCIATED(temp))
if (temp%locked) l = l + 1
temp => temp%Next
END DO
IF ( l > 0 ) THEN
info = -l
return
ELSE
CALL this%dealloc()
info = 0
END IF
!
end subroutine reinit
!
subroutine dump_status(this)
class({{typename}}), intent(inout) :: this !< The class.
TYPE(Node), POINTER :: temp
integer :: i
i = 1
temp => Head
write (*, *) "Buffer status ================="
write (*, *) " n size Locked"
DO WHILE (ASSOCIATED(temp))
write (*,'(I12, I12, L7)') i, SIZE(TemP%space, kind=LLI), TemP%locked
TemP => TemP%Next
i = i + 1
END DO
write (*, *) "-------------------------------"
end subroutine dump_status
!
subroutine print_report(this, unit)
class({{typename}}), intent(inout) :: this !< The class.
INTEGER, OPTIONAL, intent(in) :: unit
!
TYPE(Node), POINTER :: temp
integer(kind=LLI) :: tsz
integer :: i, l
i = 0
l = 0
tsz = 0
temp => Head
DO WHILE (ASSOCIATED(temp))
tsz = tsz + SIZE(temp%space, kind=LLI)
if (temp%locked) l = l + 1
temp => temp%Next
i = i + 1
END DO
if ( present (unit) ) then
write (unit, '("[{{modulename}}] Currently allocated ", (es12.2), " Mbytes, locked: ", (I4), " /", (I4) )') REAL(tsz)/1048576, l, i
else
write (* , '("[{{modulename}}] Currently allocated ", (es12.2), " Mbytes, locked: ", (I4), " /", (I4) )') REAL(tsz)/1048576, l, i
end if
end subroutine print_report
!
subroutine lock_space(this, d, cloc, info)
use iso_c_binding
implicit none
class({{typename}}), intent(inout) :: this !< The class.
integer(kind=LLI), intent(in) :: d
#if defined(__CUDA)
type({{pointer_type}}), intent(inout) :: cloc
#else
type(c_ptr), intent(inout) :: cloc
#endif
integer, intent(out) :: info
!
integer(kind=LLI) :: r, tsz, sz
TYPE(Node), POINTER :: temp, good
INTEGER :: i, good_one_idx
!
r = 0
tsz = 0
i = 1
!
! Find the smallest usable buffer
good_one_idx = 0
temp => Head
NULLIFY(good)
DO WHILE (ASSOCIATED(temp))
sz = SIZE(TemP%space, kind=LLI)
IF ( ( sz >= d ) .and. (TemP%locked .eqv. .false.) ) THEN
IF ( good_one_idx >= 1 ) THEN
IF ( sz - d < r) THEN
good => temp
r = SIZE(TemP%space, kind=LLI) - d
good_one_idx = i
END IF
ELSE
good_one_idx = i
good => temp
r = sz - d
END IF
info = 0
END IF
!
tsz = tsz + sz
i = i + 1
!
TemP => TemP%Next
END DO
!
! Allocate a new buffer
IF ( good_one_idx == 0 ) THEN
ALLOCATE (good)
#if defined(__CUDA)
{%- if attributes == 'device' %}
ALLOCATE (good%space(d), stat=info)
{%- else %}
info = cudaMallocHost(cloc, int(d))
CALL c_f_pointer( cloc, good%space, [ d ] )
!ALLOCATE (good%space(d), stat=info)
{%- endif %}
#else
ALLOCATE (good%space(d), stat=info)
#endif
good%Next => Head
Head => good
tsz = tsz + d
if (this%verbose) write (*, '("[{{modulename}}] Created new buffer")')
ELSE
if (this%verbose) write (*, '("[{{modulename}}] Locked buffer", I4)') good_one_idx
END IF
!
if (this%verbose) &
write (*, '("[{{modulename}}] Currently allocated ", (es12.2), " Mbytes")') REAL(tsz)/1048576 ! 1024/1024
!
good%locked = .true.
#if defined(__CUDA)
{%- if attributes == 'device' %}
cloc = c_devloc(good%space)
{%- else %}
cloc = c_loc(good%space)
{%- endif %}
#else
cloc = c_loc(good%space(1))
#endif
!
end subroutine lock_space
!
subroutine prepare_space(this, d, info)
use iso_c_binding
implicit none
class({{typename}}), intent(inout) :: this !< The class.
integer(kind=LLI), intent(in) :: d
integer, intent(out) :: info
!
#if defined(__CUDA)
type({{pointer_type}}) :: cloc
#endif
integer(kind=LLI) :: r, tsz, sz
TYPE(Node), POINTER :: temp, good
INTEGER :: i, good_one_idx
!
r = 0
tsz = 0
i = 1
!
! Find the smallest usable buffer
good_one_idx = 0
temp => Head
NULLIFY(good)
DO WHILE (ASSOCIATED(temp))
sz = SIZE(TemP%space, kind=LLI)
IF ( ( sz >= d ) .and. (TemP%locked .eqv. .false.) ) THEN
good_one_idx = i
info = 0
END IF
!
tsz = tsz + sz
i = i + 1
!
TemP => TemP%Next
END DO
!
! Allocate a new buffer if needed
IF ( good_one_idx == 0 ) THEN
ALLOCATE (good)
#if defined(__CUDA)
{%- if attributes == 'device' %}
ALLOCATE (good%space(d), stat=info)
{%- else %}
info = cudaMallocHost(cloc, int(d))
CALL c_f_pointer( cloc, good%space, [ d ] )
{%- endif %}
#else
ALLOCATE (good%space(d), stat=info)
#endif
good%locked = .false.
good%Next => Head
Head => good
tsz = tsz + d
if (this%verbose) write (*, '("[{{modulename}}] Created new buffer")')
ELSE
if (this%verbose) write (*, '("[{{modulename}}] Good buffer found: ", I4)') good_one_idx
END IF
!
if (this%verbose) &
write (*, '("[{{modulename}}] Currently allocated ", (es12.2), " Mbytes")') REAL(tsz)/1048576 ! 1024/1024
!
end subroutine prepare_space
!
subroutine release_space(this, cloc, info)
#if defined(__CUDA)
{{cudamod}}
#endif
use iso_c_binding
implicit none
class({{typename}}), intent(inout) :: this !< The class.
#if defined(__CUDA)
type({{pointer_type}}), intent(in) :: cloc
#else
type(c_ptr), intent(in) :: cloc
#endif
integer, intent(out) :: info
!
TYPE(Node), POINTER :: temp
#if defined(__CUDA)
type({{pointer_type}}) :: clocint
#else
type(c_ptr) :: clocint
#endif
!
integer :: i
info = -1
i = 1
temp => head
DO WHILE (ASSOCIATED(temp))
#if defined(__CUDA)
{%- if attributes == 'device' %}
IF ( cloc == c_devloc(TemP%space) ) THEN
{%- else %}
clocint = c_loc(TemP%space(1))
IF ( C_ASSOCIATED(cloc, clocint) ) THEN
{%- endif %}
#else
clocint = c_loc(TemP%space(1))
IF ( C_ASSOCIATED(cloc, clocint) ) THEN
#endif
TemP%locked=.false.
info = 0
EXIT
END IF
i = i + 1
TemP => TemP%Next
END DO
if (this%verbose) write (*, '("[{{modulename}}] Released buffer ", I4)') i
end subroutine release_space
!
{% for item in interfaces %}
!> Get or allocate a buffer for an {{ item.vtype }} {{ item.vrankname }}.
subroutine lock_buffer_{{ item.subname }}(this, p, {{ item.vsize }}{% if item.rank == 1%}_{% endif %}, info)
#if defined(__CUDA)
{{cudamod}}
#endif
use iso_c_binding
implicit none
class({{typename}}), intent(inout) :: this !< The class.
{{ item.vtype }}, pointer, intent(out) :: p({{ item.ranks }}) !< Pointer possibly set to access buffer
integer, intent(in) :: {{ item.vsize }}{% if item.rank > 1%}{{ item.vsizedims }}{% else %}_{% endif %} !< {{ item.vrankname }} dimension
integer, intent(out) :: info !< 0: ok
!< -1: no buffers left, allocating space
!< -2: unexpected error, no memory left
!< other values come form allocate stat
#if defined(__CUDA)
{%- if (attributes) %}
attributes({{attributes}}) :: p
{%- endif %}
#endif
integer(kind=LLI) :: d
#if defined(__CUDA)
type({{pointer_type}}) :: cloc
#else
type(c_ptr) :: cloc
#endif
!
{{ item.vtype }} :: dummy
{%- if item.rank == 1%}
integer :: {{ item.vsize }}(1)
{{ item.vsize }}(1) = {{ item.vsize }}_
{%- endif %}
!
d = PRODUCT({{ item.vsize }})
d = d*SIZEOF(dummy)
!
! Free and simple compatibility with zero dimension buffers.
IF ( d == 0 ) d = 1
!
CALL this%lock_space(d, cloc, info)
CALL c_f_pointer( cloc, p, {{ item.vsize }} )
end subroutine lock_buffer_{{ item.subname }}
{% endfor %}
!
{% for item in interfaces %}
!> Release the buffer corresponding to pointer p, if associated with a buffer. Otherwise just deallocates.
subroutine release_buffer_{{ item.subname }}(this, p, info)
#if defined(__CUDA)
{{cudamod}}
#endif
use iso_c_binding
implicit none
class({{typename}}), intent(inout) :: this !< The class.
{{ item.vtype }}, pointer, intent(inout) :: p({{ item.ranks }}) !< Pointer possibly pointing to buffer space
integer, intent(out) :: info
#if defined(__CUDA)
{%- if (attributes) %}
attributes({{attributes}}) :: p
{%- endif %}
#endif
#if defined(__CUDA)
{% if attributes == 'device' %}
CALL this%release_space(c_devloc(p), info)
{% else %}
CALL this%release_space(c_loc(p), info)
{% endif %}
#else
CALL this%release_space(c_loc(p({% for i in range(item.rank) %} lbound(p, {{ i+1 }}){% if not loop.last %}, {% endif %}{% endfor %})), info)
#endif
end subroutine release_buffer_{{ item.subname }}
{% endfor %}
!
{% for item in interfaces %}
!>
subroutine prepare_buffer_{{ item.subname }}(this, p, {{ item.vsize }}{% if item.rank == 1%}_{% endif %}, info)
#if defined(__CUDA)
{{cudamod}}
#endif
use iso_c_binding
implicit none
class({{typename}}), intent(inout) :: this !< The class.
{{ item.vtype }}, pointer, intent(out) :: p({{ item.ranks }}) !< Pointer (only used for assesing type)
integer, intent(in) :: {{ item.vsize }}{% if item.rank > 1%}{{ item.vsizedims }}{% else %}_{% endif %} !< {{ item.vrankname }} dimension
integer, intent(out) :: info !< 0: ok
!< -1: no buffers left, allocating space
!< -2: unexpected error, no memory left
!< other values come form allocate stat
#if defined(__CUDA)
{%- if (attributes) %}
attributes({{attributes}}) :: p
{%- endif %}
#endif
integer(kind=LLI) :: d
#if defined(__CUDA)
type({{pointer_type}}) :: cloc
#else
type(c_ptr) :: cloc
#endif
!
{{ item.vtype }} :: dummy
{%- if item.rank == 1%}
integer :: {{ item.vsize }}(1)
{{ item.vsize }}(1) = {{ item.vsize }}_
{%- endif %}
!
d = PRODUCT({{ item.vsize }})
d = d*SIZEOF(dummy)
!
CALL this%prepare_space(d, info)
!
end subroutine prepare_buffer_{{ item.subname }}
{% endfor %}
end module {{modulename}}
|
