BLAS，ATLAS，LAPACK共享库最小示例 [英] BLAS, ATLAS, LAPACK Shared library minimal example

问题描述

我通过安装了atlas，blas和lapack x86_64软件包

  yum install atlas.x86_64 blas.x86_64 lapack.x86_64 
 $ / code> 

关于Redhat 6.6（ii）发行版安装共享库但编译和链接时遇到问题。例如，如果我尝试编译最小的工作示例：



 程序主体
 print *，'hello world' 
 end program main 
  

使用



  gfortran -L。 main.f90 -llapack -lblas -o main 
  

编译器找不到库，我得到错误消息：

pre $ / usr / bin / ld：找不到-llapack
collect2：ld返回1退出状态


我对fortran和linux比较陌生，所以我可能错过了一些明显的东西。我迷失在编译源代码库的时间也不成功。



非常赞赏指针。

解决方案

您需要安装这些软件包的 * - devel 版本。

例如，我使用虚拟的Fedora 17系统：

  $ cat main.f90 
程序主体
 print *，'hello world'
结束程序主体
 $ gfortran -L。 main.f90 -llapack -lblas -o main 
 / usr / bin / ld：无法找到-llapack 
 / usr / bin / ld：找不到-lblas 
 collect2：错误：ld返回1退出状态
 $ sudo yum install atlas.x86_64 blas.x86_64 lapack.x86_64 
 ... 
已安装：
 blas.x86_64 0：3.4.2-2.fc17 lapack .x86_64 0：3.4.2-2.fc17 
 
完成！ 
 $ gfortran -L。 main.f90 -llapack -lblas -o main 
 / usr / bin / ld：无法找到-llapack 
 / usr / bin / ld：找不到-lblas 
 collect2：错误：ld返回1退出状态
 $ sudo yum install atlas-devel.x86_64 blas-devel.x86_64 lapack-devel.x86_64 
 ... 
已安装：
 atlas-devel.x86_64 0： 3.8.4-3.fc17 blas-devel.x86_64 0：3.4.2-2.fc17 
 lapack-devel.x86_64 0：3.4.2-2.fc17 
 
完成！ 
 $ gfortran -L。 main.f90 -llapack -lblas -o main 
（成功）
  

I installed atlas, blas and lapack x86_64 packages via

yum install atlas.x86_64 blas.x86_64 lapack.x86_64

on a Redhat 6.6 (ii) distro which installs a shared library but am having problems compiling and linking. For example, if I try to compile the minimal working example:

program main
  print *, 'hello world'
end program main

using

gfortran -L. main.f90 -llapack -lblas -o main

the compiler doesn't find the libraries and I get the error message:

/usr/bin/ld: cannot find -llapack
collect2: ld returned 1 exit status 

I'm relatively new to fortran and linux so I'm probably missing something obvious. I'm lost hours on compiling the libraries from source unsuccessfully too.

Pointers much appreciated.

解决方案

You need to install the *-devel versions of those packages.

E.g., with a virtual Fedora 17 system I had lying around:

$ cat main.f90
program main
  print *, 'hello world'
end program main
$ gfortran -L. main.f90 -llapack -lblas -o main
/usr/bin/ld: cannot find -llapack
/usr/bin/ld: cannot find -lblas
collect2: error: ld returned 1 exit status
$ sudo yum install atlas.x86_64 blas.x86_64 lapack.x86_64
...
Installed:
  blas.x86_64 0:3.4.2-2.fc17            lapack.x86_64 0:3.4.2-2.fc17           

Complete!
$ gfortran -L. main.f90 -llapack -lblas -o main
/usr/bin/ld: cannot find -llapack
/usr/bin/ld: cannot find -lblas
collect2: error: ld returned 1 exit status
$ sudo yum install atlas-devel.x86_64 blas-devel.x86_64 lapack-devel.x86_64
...
Installed:
  atlas-devel.x86_64 0:3.8.4-3.fc17       blas-devel.x86_64 0:3.4.2-2.fc17     
  lapack-devel.x86_64 0:3.4.2-2.fc17     

Complete!
$ gfortran -L. main.f90 -llapack -lblas -o main
(Success)

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