问题描述
我有下面的代码。当我取消注释 temperature(i,j)=阳极温度
时,我SegFault。
<$ c $ (1),j = 0:单元(2),j> = nint(upperBoundary(i * delta(1))/ delta(2)))
phi(i = i,j)= Anode_Voltage
!温度(i,j)=阳极温度
结束全部
然而,我可以访问每个元素使用下面的代码。
do i = 0,Cells(1)
do j = 0,Cells(2 )
温度(i,j)=阳极温度
写(*,*)i,j,温度(i,j)
enddo
enddo
这是一个自包含的程序。由于有人提到他们使用了ifort,我正在使用ifort 14。
pre $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $
REAL,PARAMETER :: Pi = 3.14159265359
integer,parameter :: ND = 2
real,parameter :: RL = 1.0E-6!边界半径
real ,参数:: HN = 5.0E-6!包含针的长度
实数,参数:: HL = 2.0E-6!提示高度
实数,参数:: LTT = 3E- 6!小费距离
real,parameter :: RU = 0.5E-6!边界半径
real,参数:: HU = 1.5E-6!特征高度
real,parameter :: zLen = HN + HL + LTT + HU
real,parameter,dimension(ND):: Length =(/ 20E-6,zLen /)!计算域大小(r,z)
! Grid Spacing
real,parameter,dimension(ND):: delta =(/ 1.0E-8,1.0E-8 /)
整数,PARAMETER,dimension(ND):: cells = Length / delta
real,parameter :: VApplied = -150
REAL,PARAMETER :: cathode_temperature = 1473.14!阴极温度[K]
REAL,parameter :: anode_temperature = 973.14!阳极温度[K]
真:: Cathode_Voltage,Anode_Voltage
REAL,维(0:单元格(1),0:单元格(2)):: phi
REAL,维(0:单元格(1),0:单元格(2))::温度!网格气体温度
整数:: i,j
phi = 0.0
temperature = 0.0
Cathode_Voltage = VApplied
Anode_Voltage = 0
forall(i = 0:Cells(1),j = 0:单元(2),j≤nint(lowerBoundary(i * delta(1))/ delta(2)))
phi(i,j)= Cathode_Voltage
temperature(i,j)= (1),j = 0:单元(2),j> = nint(upperBoundary(i * delta(1))) / del ta(2)))
phi(i,j)=阳极_电压
温度(i,j)=阳极温度
结束全部
!forall(i = 0 :单元(1),j = 0:单元(2),(j> nint(lowerBoundary(i * delta(1))/ delta(2)))和。 (j ! phi(i,j)= Cathode_Voltage +(Anode_Voltage_ Cathode_Voltage)*((delta(2)* j- lowerBoundary(i * delta(1)))/(upperBoundary(i * delta(1)) - lowerBoundary(i * delta(1))))
!温度(i,j)=阴极温度+(阳极温度 - 阴极温度)*((delta(2)* j-下部边界(i * delta(1)))/(upperBoundary(i * delta(1) delta(1))))
!end forall
包含
pure函数LowerRegion(r)结果(k)
隐式无$ b $如果(r k = 0
elseif(r 整数:: k
)然后
k = 1
elseif(r> = RL)然后
k = 2
elseif(r> R)然后
k = 3
endif
结束函数LowerRegion
纯函数UpperRegion(r)结果(k)
隐含无
实数,意图(in):: r
integer :: k
if(r k = 0
elseif(r k = 1
elseif(r> = RU),则
k = 2
elseif(r> R)then
k = 3
endif
end function UpperRegion
!!!!!!!!!!!!为各个区域定义几何图形的几何图形!!!!!!!!!!!!!!!!!!
pure函数lowerBoundary(r)结果(z)
隐式无
实数,意图(in):: r
real :: z
if if(LowerRegion(r)== 1)then
z = HN + HL *(1.0 - (r / RL))
elseif(LowerRegion(r)== 2)then
z = 0.0
endif
!end function lowerBoundary_Scalar
结束函数lowerBoundary
纯函数upperBoundary(r)结果(z)
隐式none
real,intent(in):: r
real :: z
$ b $ if(UpperRegion(r)== 1)then
z = zLen - HU * (1.0 - (r / RU))
elseif(UpperRegion(r)== 2)然后
z = zLen
结束如果
结束函数upperBoundary
end program Main
正如@haraldkl所建议的那样,有一个编译器错误。 forall
循环与 -g
编译器标志(或更具体地说 - > O0
标志这会自动导致)。这是我在英特尔论坛上发布的帖子。
I have the code below. When I uncomment temperature(i,j) = anode_temperature
, I SegFault.
forall(i=0:Cells(1), j=0:Cells(2), j >= nint(upperBoundary(i * delta(1)) / delta(2)))
phi(i,j) = Anode_Voltage
! temperature(i,j) = anode_temperature
end forall
However, I can access every element using the code below.
do i = 0,Cells(1)
do j = 0,Cells(2)
temperature(i,j) = anode_temperature
write(*,*) i,j,temperature(i,j)
enddo
enddo
Here is a self-contained program. Since someone mentioned they used ifort, I am using ifort 14.
program Main
implicit none
REAL, PARAMETER :: Pi = 3.14159265359
integer,parameter :: ND = 2
real, parameter :: RL = 1.0E-6 !Boundary radius
real, parameter :: HN = 5.0E-6 !Length of included needle
real, parameter :: HL = 2.0E-6 !Tip height
real, parameter :: LTT = 3E-6 !Tip-to-tip distance
real, parameter :: RU = 0.5E-6 !Boundary radius
real, parameter :: HU = 1.5E-6 !feature height
real, parameter :: zLen = HN + HL + LTT + HU
real,parameter,dimension(ND) :: Length = (/ 20E-6, zLen /) !computational domain size (r,z)
! Grid Spacing
real, parameter, dimension(ND) :: delta = (/ 1.0E-8 , 1.0E-8 /)
integer, PARAMETER, dimension(ND) :: cells = Length / delta
real,parameter :: VApplied = -150
REAL, PARAMETER :: cathode_temperature = 1473.14 !Cathode Temperature [K]
REAL, parameter :: anode_temperature = 973.14 !Anode Temperature [K]
real :: Cathode_Voltage, Anode_Voltage
REAL, dimension(0:cells(1), 0:cells(2)) :: phi
REAL, dimension(0:cells(1), 0:cells(2)) :: temperature !grid-wise gas temperature
integer:: i,j
phi = 0.0
temperature = 0.0
Cathode_Voltage = VApplied
Anode_Voltage = 0
forall(i=0:Cells(1), j=0:Cells(2), j <= nint(lowerBoundary(i * delta(1)) / delta(2)))
phi(i,j) = Cathode_Voltage
temperature(i,j) = cathode_temperature
end forall
forall(i=0:Cells(1), j=0:Cells(2), j >= nint(upperBoundary(i * delta(1)) / delta(2)))
phi(i,j) = Anode_Voltage
temperature(i,j) = anode_temperature
end forall
!forall(i=0:Cells(1), j=0:Cells(2), (j > nint(lowerBoundary(i * delta(1)) / delta(2))) .and. (j < nint(upperBoundary(i * delta(1)) / delta(2))))
! phi(i,j) = Cathode_Voltage + (Anode_Voltage - Cathode_Voltage) * ((delta(2) * j - lowerBoundary(i * delta(1)) ) / ( upperBoundary(i * delta(1)) - lowerBoundary(i * delta(1)) ))
! temperature(i,j) = cathode_temperature + (anode_temperature - cathode_temperature) * ((delta(2) * j - lowerBoundary(i * delta(1)) ) / ( upperBoundary(i * delta(1)) - lowerBoundary(i * delta(1)) ))
!end forall
contains
pure function LowerRegion(r) result(k)
implicit none
real,intent(in) :: r
integer :: k
if (r < 0) then
k = 0
elseif (r < RL) then
k = 1
elseif (r >= RL) then
k = 2
elseif (r > R) then
k = 3
endif
end function LowerRegion
pure function UpperRegion(r) result(k)
implicit none
real,intent(in) :: r
integer :: k
if (r < 0) then
k = 0
elseif (r < RU) then
k = 1
elseif (r >= RU) then
k = 2
elseif (r > R) then
k = 3
endif
end function UpperRegion
!!!!!!!!!!!! Define geometry for regions radially !!!!!!!!!!!!!!!!!!
pure function lowerBoundary(r) result(z)
implicit none
real,intent(in) :: r
real :: z
if (LowerRegion(r) == 1) then
z = HN + HL * (1.0 - (r / RL))
elseif (LowerRegion(r) == 2) then
z = 0.0
endif
!end function lowerBoundary_Scalar
end function lowerBoundary
pure function upperBoundary(r) result(z)
implicit none
real,intent(in) :: r
real :: z
if (UpperRegion(r) == 1) then
z = zLen - HU * (1.0 - (r / RU))
elseif (UpperRegion(r) == 2) then
z = zLen
end if
end function upperBoundary
end program Main
As was suggested by @haraldkl, there was a compiler bug. The combination of the forall
loops and the -g
compiler flag (or more specifically the -O0
flag this automatically causes). This is the post I made on the Intel forum.
https://software.intel.com/en-us/forums/intel-fortran-compiler-for-linux-and-mac-os-x/topic/593599
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