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psblas3:

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base/modules/psb_hash_mod.f90
 test/pargen/ppde2d.f90
 test/pargen/ppde3d.f90
 test/pargen/spde2d.f90
 test/pargen/spde3d.f90

Doxygen for hash. 
Fix module usage in test/pargen.
psblas-3.0-maint
Salvatore Filippone 13 years ago
parent 1bfbee84e3
commit fb40368d99
5 changed files with 243 additions and 221 deletions
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34
base/modules/psb_hash_mod.f90
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@ -30,26 +30,28 @@
!!$
!!$
!
! package: psb_hash_mod
!
! This module implements a very simple minded hash table.
! The hash is based on the idea of open addressing with double hashing;
! the primary hash function h1(K) is simply the remainder modulo 2^N, while
! the secondary hash function is 1 if H1(k) == 0, otherwise IOR((2^N-H1(k)),1)
! (See Knuth: TAOCP, Vol. 3, sec. 6.4)
! These hash functions are not very smart; however they are very simple and fast.
! The intended usage of this hash table is to store indices of halo points, which
! are supposed to be few compared to the internal indices (which are stored elsewhere).
! Therefore, either the table has a very low occupancy, and this scheme will work,
! or we have lots more to worry about in parallel performance than the efficiency
! of this hashing scheme.
!
!
!
module psb_hash_mod
use psb_const_mod
!
!> \class psb_hash_mod
!! \brief Simple hash module for storing integer keys.
!!
!! This module implements a very simple minded hash table.
!! The hash is based on the idea of open addressing with double hashing;
!! the primary hash function h1(K) is simply the remainder modulo 2^N, while
!! the secondary hash function is 1 if H1(k) == 0, otherwise IOR((2^N-H1(k)),1)
!! (See Knuth: TAOCP, Vol. 3, sec. 6.4)
!!
!! These hash functions are not very smart; however they are very simple and fast.
!! The intended usage of this hash table is to store indices of halo points, which
!! are supposed to be few compared to the internal indices
!! (which are stored elsewhere).
!! Therefore, either the table has a very low occupancy, and this scheme will work,
!! or we have lots more to worry about in parallel performance than the efficiency
!! of this hashing scheme.
!!
!!
! For us a hash is a Nx2 table.
! Note: we are assuming that the keys are positive numbers.
! Allocatable scalars would be a nice solution...

97
test/pargen/ppde2d.f90
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@ -55,11 +55,62 @@
! then the corresponding vector is distributed according to a BLOCK
! data distribution.
!
module ppde2d_mod
contains
!
! functions parametrizing the differential equation
!
function b1(x,y)
use psb_base_mod, only : psb_dpk_
real(psb_dpk_) :: b1
real(psb_dpk_), intent(in) :: x,y
b1=1.d0/sqrt(2.d0)
end function b1
function b2(x,y)
use psb_base_mod, only : psb_dpk_
real(psb_dpk_) :: b2
real(psb_dpk_), intent(in) :: x,y
b2=1.d0/sqrt(2.d0)
end function b2
function c(x,y)
use psb_base_mod, only : psb_dpk_
real(psb_dpk_) :: c
real(psb_dpk_), intent(in) :: x,y
c=0.d0
end function c
function a1(x,y)
use psb_base_mod, only : psb_dpk_
real(psb_dpk_) :: a1
real(psb_dpk_), intent(in) :: x,y
a1=1.d0/80
end function a1
function a2(x,y)
use psb_base_mod, only : psb_dpk_
real(psb_dpk_) :: a2
real(psb_dpk_), intent(in) :: x,y
a2=1.d0/80
end function a2
function g(x,y)
use psb_base_mod, only : psb_dpk_, done, dzero
real(psb_dpk_) :: g
real(psb_dpk_), intent(in) :: x,y
g = dzero
if (x == done) then
g = done
else if (x == dzero) then
g = exp(-y**2)
end if
end function g
end module ppde2d_mod
program ppde2d
use psb_base_mod
use psb_prec_mod
use psb_krylov_mod
use psb_util_mod
use ppde2d_mod
implicit none
! input parameters
@ -321,52 +372,6 @@ contains
write(iout,*)' >= 1 do tracing every itrace'
write(iout,*)' iterations '
end subroutine pr_usage
!
! functions parametrizing the differential equation
!
function b1(x,y)
use psb_base_mod, only : psb_dpk_
real(psb_dpk_) :: b1
real(psb_dpk_), intent(in) :: x,y
b1=1.d0/sqrt(2.d0)
end function b1
function b2(x,y)
use psb_base_mod, only : psb_dpk_
real(psb_dpk_) :: b2
real(psb_dpk_), intent(in) :: x,y
b2=1.d0/sqrt(2.d0)
end function b2
function c(x,y)
use psb_base_mod, only : psb_dpk_
real(psb_dpk_) :: c
real(psb_dpk_), intent(in) :: x,y
c=0.d0
end function c
function a1(x,y)
use psb_base_mod, only : psb_dpk_
real(psb_dpk_) :: a1
real(psb_dpk_), intent(in) :: x,y
a1=1.d0/80
end function a1
function a2(x,y)
use psb_base_mod, only : psb_dpk_
real(psb_dpk_) :: a2
real(psb_dpk_), intent(in) :: x,y
a2=1.d0/80
end function a2
function g(x,y)
use psb_base_mod, only : psb_dpk_, done
real(psb_dpk_) :: g
real(psb_dpk_), intent(in) :: x,y
g = dzero
if (x == done) then
g = done
else if (x == dzero) then
g = exp(-y**2)
end if
end function g
end program ppde2d

119
test/pargen/ppde3d.f90
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@ -55,11 +55,73 @@
! then the corresponding vector is distributed according to a BLOCK
! data distribution.
!
module ppde3d_mod
contains
!
! functions parametrizing the differential equation
!
function b1(x,y,z)
use psb_base_mod, only : psb_dpk_
real(psb_dpk_) :: b1
real(psb_dpk_), intent(in) :: x,y,z
b1=1.d0/sqrt(3.d0)
end function b1
function b2(x,y,z)
use psb_base_mod, only : psb_dpk_
real(psb_dpk_) :: b2
real(psb_dpk_), intent(in) :: x,y,z
b2=1.d0/sqrt(3.d0)
end function b2
function b3(x,y,z)
use psb_base_mod, only : psb_dpk_
real(psb_dpk_) :: b3
real(psb_dpk_), intent(in) :: x,y,z
b3=1.d0/sqrt(3.d0)
end function b3
function c(x,y,z)
use psb_base_mod, only : psb_dpk_
real(psb_dpk_) :: c
real(psb_dpk_), intent(in) :: x,y,z
c=0.d0
end function c
function a1(x,y,z)
use psb_base_mod, only : psb_dpk_
real(psb_dpk_) :: a1
real(psb_dpk_), intent(in) :: x,y,z
a1=1.d0/80
end function a1
function a2(x,y,z)
use psb_base_mod, only : psb_dpk_
real(psb_dpk_) :: a2
real(psb_dpk_), intent(in) :: x,y,z
a2=1.d0/80
end function a2
function a3(x,y,z)
use psb_base_mod, only : psb_dpk_
real(psb_dpk_) :: a3
real(psb_dpk_), intent(in) :: x,y,z
a3=1.d0/80
end function a3
function g(x,y,z)
use psb_base_mod, only : psb_dpk_, done, dzero
real(psb_dpk_) :: g
real(psb_dpk_), intent(in) :: x,y,z
g = dzero
if (x == done) then
g = done
else if (x == dzero) then
g = exp(y**2-z**2)
end if
end function g
end module ppde3d_mod
program ppde3d
use psb_base_mod
use psb_prec_mod
use psb_krylov_mod
use psb_util_mod
use ppde3d_mod
implicit none
! input parameters
@ -325,63 +387,6 @@ contains
write(iout,*)' iterations '
end subroutine pr_usage
!
! functions parametrizing the differential equation
!
function b1(x,y,z)
use psb_base_mod, only : psb_dpk_
real(psb_dpk_) :: b1
real(psb_dpk_), intent(in) :: x,y,z
b1=1.d0/sqrt(3.d0)
end function b1
function b2(x,y,z)
use psb_base_mod, only : psb_dpk_
real(psb_dpk_) :: b2
real(psb_dpk_), intent(in) :: x,y,z
b2=1.d0/sqrt(3.d0)
end function b2
function b3(x,y,z)
use psb_base_mod, only : psb_dpk_
real(psb_dpk_) :: b3
real(psb_dpk_), intent(in) :: x,y,z
b3=1.d0/sqrt(3.d0)
end function b3
function c(x,y,z)
use psb_base_mod, only : psb_dpk_
real(psb_dpk_) :: c
real(psb_dpk_), intent(in) :: x,y,z
c=0.d0
end function c
function a1(x,y,z)
use psb_base_mod, only : psb_dpk_
real(psb_dpk_) :: a1
real(psb_dpk_), intent(in) :: x,y,z
a1=1.d0/80
end function a1
function a2(x,y,z)
use psb_base_mod, only : psb_dpk_
real(psb_dpk_) :: a2
real(psb_dpk_), intent(in) :: x,y,z
a2=1.d0/80
end function a2
function a3(x,y,z)
use psb_base_mod, only : psb_dpk_
real(psb_dpk_) :: a3
real(psb_dpk_), intent(in) :: x,y,z
a3=1.d0/80
end function a3
function g(x,y,z)
use psb_base_mod, only : psb_dpk_, done
real(psb_dpk_) :: g
real(psb_dpk_), intent(in) :: x,y,z
g = dzero
if (x == done) then
g = done
else if (x == dzero) then
g = exp(y**2-z**2)
end if
end function g
end program ppde3d

95
test/pargen/spde2d.f90
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@ -55,11 +55,61 @@
! then the corresponding vector is distributed according to a BLOCK
! data distribution.
!
module spde2d_mod
contains
!
! functions parametrizing the differential equation
!
function b1(x,y)
use psb_base_mod, only : psb_spk_
real(psb_spk_) :: b1
real(psb_spk_), intent(in) :: x,y
b1=1.e0/sqrt(2.e0)
end function b1
function b2(x,y)
use psb_base_mod, only : psb_spk_
real(psb_spk_) :: b2
real(psb_spk_), intent(in) :: x,y
b2=1.e0/sqrt(2.e0)
end function b2
function c(x,y)
use psb_base_mod, only : psb_spk_
real(psb_spk_) :: c
real(psb_spk_), intent(in) :: x,y
c=0.e0
end function c
function a1(x,y)
use psb_base_mod, only : psb_spk_
real(psb_spk_) :: a1
real(psb_spk_), intent(in) :: x,y
a1=1.e0/80
end function a1
function a2(x,y)
use psb_base_mod, only : psb_spk_
real(psb_spk_) :: a2
real(psb_spk_), intent(in) :: x,y
a2=1.e0/80
end function a2
function g(x,y)
use psb_base_mod, only : psb_spk_, sone, szero
real(psb_spk_) :: g
real(psb_spk_), intent(in) :: x,y
g = szero
if (x == sone) then
g = sone
else if (x == szero) then
g = exp(-y**2)
end if
end function g
end module spde2d_mod
program spde2d
use psb_base_mod
use psb_prec_mod
use psb_krylov_mod
use psb_util_mod
use spde2d_mod
implicit none
! input parameters
@ -322,51 +372,6 @@ contains
write(iout,*)' iterations '
end subroutine pr_usage
!
! functions parametrizing the differential equation
!
function b1(x,y)
use psb_base_mod, only : psb_spk_
real(psb_spk_) :: b1
real(psb_spk_), intent(in) :: x,y
b1=1.e0/sqrt(2.e0)
end function b1
function b2(x,y)
use psb_base_mod, only : psb_spk_
real(psb_spk_) :: b2
real(psb_spk_), intent(in) :: x,y
b2=1.e0/sqrt(2.e0)
end function b2
function c(x,y)
use psb_base_mod, only : psb_spk_
real(psb_spk_) :: c
real(psb_spk_), intent(in) :: x,y
c=0.e0
end function c
function a1(x,y)
use psb_base_mod, only : psb_spk_
real(psb_spk_) :: a1
real(psb_spk_), intent(in) :: x,y
a1=1.e0/80
end function a1
function a2(x,y)
use psb_base_mod, only : psb_spk_
real(psb_spk_) :: a2
real(psb_spk_), intent(in) :: x,y
a2=1.e0/80
end function a2
function g(x,y)
use psb_base_mod, only : psb_spk_, sone
real(psb_spk_) :: g
real(psb_spk_), intent(in) :: x,y
g = szero
if (x == sone) then
g = sone
else if (x == szero) then
g = exp(-y**2)
end if
end function g
end program spde2d

119
test/pargen/spde3d.f90
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@ -56,11 +56,73 @@
! data distribution.
!
!
module spde3d_mod
contains
!
! functions parametrizing the differential equation
!
function b1(x,y,z)
use psb_base_mod, only : psb_spk_
real(psb_spk_) :: b1
real(psb_spk_), intent(in) :: x,y,z
b1=1.e0/sqrt(3.e0)
end function b1
function b2(x,y,z)
use psb_base_mod, only : psb_spk_
real(psb_spk_) :: b2
real(psb_spk_), intent(in) :: x,y,z
b2=1.e0/sqrt(3.e0)
end function b2
function b3(x,y,z)
use psb_base_mod, only : psb_spk_
real(psb_spk_) :: b3
real(psb_spk_), intent(in) :: x,y,z
b3=1.e0/sqrt(3.e0)
end function b3
function c(x,y,z)
use psb_base_mod, only : psb_spk_
real(psb_spk_) :: c
real(psb_spk_), intent(in) :: x,y,z
c=0.e0
end function c
function a1(x,y,z)
use psb_base_mod, only : psb_spk_
real(psb_spk_) :: a1
real(psb_spk_), intent(in) :: x,y,z
a1=1.e0/80
end function a1
function a2(x,y,z)
use psb_base_mod, only : psb_spk_
real(psb_spk_) :: a2
real(psb_spk_), intent(in) :: x,y,z
a2=1.e0/80
end function a2
function a3(x,y,z)
use psb_base_mod, only : psb_spk_
real(psb_spk_) :: a3
real(psb_spk_), intent(in) :: x,y,z
a3=1.e0/80
end function a3
function g(x,y,z)
use psb_base_mod, only : psb_spk_, sone, szero
real(psb_spk_) :: g
real(psb_spk_), intent(in) :: x,y,z
g = szero
if (x == sone) then
g = sone
else if (x == szero) then
g = exp(y**2-z**2)
end if
end function g
end module spde3d_mod
program spde3d
use psb_base_mod
use psb_prec_mod
use psb_krylov_mod
use psb_util_mod
use spde3d_mod
implicit none
! input parameters
@ -326,63 +388,6 @@ contains
write(iout,*)' iterations '
end subroutine pr_usage
!
! functions parametrizing the differential equation
!
function b1(x,y,z)
use psb_base_mod, only : psb_spk_
real(psb_spk_) :: b1
real(psb_spk_), intent(in) :: x,y,z
b1=1.e0/sqrt(3.e0)
end function b1
function b2(x,y,z)
use psb_base_mod, only : psb_spk_
real(psb_spk_) :: b2
real(psb_spk_), intent(in) :: x,y,z
b2=1.e0/sqrt(3.e0)
end function b2
function b3(x,y,z)
use psb_base_mod, only : psb_spk_
real(psb_spk_) :: b3
real(psb_spk_), intent(in) :: x,y,z
b3=1.e0/sqrt(3.e0)
end function b3
function c(x,y,z)
use psb_base_mod, only : psb_spk_
real(psb_spk_) :: c
real(psb_spk_), intent(in) :: x,y,z
c=0.e0
end function c
function a1(x,y,z)
use psb_base_mod, only : psb_spk_
real(psb_spk_) :: a1
real(psb_spk_), intent(in) :: x,y,z
a1=1.e0/80
end function a1
function a2(x,y,z)
use psb_base_mod, only : psb_spk_
real(psb_spk_) :: a2
real(psb_spk_), intent(in) :: x,y,z
a2=1.e0/80
end function a2
function a3(x,y,z)
use psb_base_mod, only : psb_spk_
real(psb_spk_) :: a3
real(psb_spk_), intent(in) :: x,y,z
a3=1.e0/80
end function a3
function g(x,y,z)
use psb_base_mod, only : psb_spk_, sone
real(psb_spk_) :: g
real(psb_spk_), intent(in) :: x,y,z
g = szero
if (x == sone) then
g = sone
else if (x == szero) then
g = exp(y**2-z**2)
end if
end function g
end program spde3d

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