将gfortran链接到LAPACK和BLAS时出错
我已经在Ubuntu的Synaptic软件包管理器中安装了LAPACK和BLAS将gfortran链接到LAPACK和BLAS时出错,fortran,gfortran,lapack,blas,Fortran,Gfortran,Lapack,Blas,我已经在Ubuntu的Synaptic软件包管理器中安装了LAPACK和BLAS whereis libblas libblas: /usr/lib/libblas.so /usr/lib/libblas.a /usr/lib/libblas whereis liblapack liblapack: /usr/lib/liblapack.a /usr/lib/liblapack.so 当我尝试使用gfortran编译时,我收到以下错误消息 gfortran randomsys1.f90 -L
whereis libblas
libblas: /usr/lib/libblas.so /usr/lib/libblas.a /usr/lib/libblas
whereis liblapack
liblapack: /usr/lib/liblapack.a /usr/lib/liblapack.so
当我尝试使用gfortran
编译时,我收到以下错误消息
gfortran randomsys1.f90 -L/usr/lib/lapack -llapack -L/usr/lib/libblas -lblas
/tmp/cclwtifh.o: In function `MAIN__':
randomsys1.f90:(.text+0x12): undefined reference to `init_random_seed_'
collect2: error: ld returned 1 exit status
或
根据我的理解,建议将gfortran
与lapack
和blas
链接(请参阅)。提前感谢您指出使用gfortran
编译fortran
代码的正确方法 试试这个
gfortran randomsys1.f90 -L/usr/lib -llapack -L/usr/lib -lblas
我觉得你走得太远了
我用LAPACK eigensolver编写了一个程序,下面是我如何在自己的计算机上成功编译的。它被用来计算弹簧-质量系统的模态
gfortran eigen.f90 -L/usr/local/lib -lblas -L/usr/local/lib -llapack
这也适用于我的电脑
gfortran eigen.f90 -lblas -llapack
我只是想验证一下
PS,既然您知道了如何编译,我想您的程序中需要子程序init_random_seed(在“contains”之后,但在“end program”之前)。这是谷歌的。不知道这是否是你需要的,你的教授应该能在这里正确引导你
! Initialize the random number generator using current time,
! so a new sequence of random numbers is generated each
! execution time.
! Taken from http://gcc.gnu.org/onlinedocs/gfortran/RANDOM_005fSEED.html
SUBROUTINE init_random_seed()
INTEGER :: i, n, clock
INTEGER, DIMENSION(:), ALLOCATABLE :: seed
CALL RANDOM_SEED(size = n)
ALLOCATE(seed(n))
CALL SYSTEM_CLOCK(COUNT=clock)
seed = clock + 37 * (/ (i - 1, i = 1, n) /)
CALL RANDOM_SEED(PUT = seed)
print *, "Using random seed = ", seed
print *, " "
DEALLOCATE(seed)
END SUBROUTINE
我也有同样的问题。我遵循了上面的建议 成功了。下面是我的工作示例批处理文件(必须执行它 在cmd窗口中):
非常感谢你!您已经正确地指出,
init\u random\u seed
子例程缺失。在包含了您提供的子例程之后,我可以使用命令gfortran randomsys1.f90-lblas-llapack
编译它。代码似乎与现在的不匹配,可能有更新了?@Rajarshi,您能正式接受我的答案吗(答案左上角)?我的任务是获得更多积分!
! Initialize the random number generator using current time,
! so a new sequence of random numbers is generated each
! execution time.
! Taken from http://gcc.gnu.org/onlinedocs/gfortran/RANDOM_005fSEED.html
SUBROUTINE init_random_seed()
INTEGER :: i, n, clock
INTEGER, DIMENSION(:), ALLOCATABLE :: seed
CALL RANDOM_SEED(size = n)
ALLOCATE(seed(n))
CALL SYSTEM_CLOCK(COUNT=clock)
seed = clock + 37 * (/ (i - 1, i = 1, n) /)
CALL RANDOM_SEED(PUT = seed)
print *, "Using random seed = ", seed
print *, " "
DEALLOCATE(seed)
END SUBROUTINE
gfortran -c for\kurs_evd.f90
gfortran -o kurs_evd.exe kurs_evd.o charint.o -L/usr/lib -llapack -L/usr/lib -lblas
kurs_evd.exe