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Thread: Re: LAM: can lam-7.1.2 work together with lamtests-7.1.4?
Re: LAM: can lam-7.1.2 work together with lamtests-7.1.4?
country flaguser name
China		 2008-05-06 20:37:29 

  


  

    
Hi Tim:


 


Thanks for your response!


 



I checked mpif77. It seems provided by openmpi.



 


[rootxblade08 ~]# whereis mpif77
mpif77: /usr/bin/mpif77
[rootxblade08 ~]# file /usr/bin/mpif77
/usr/bin/mpif77: symbolic link to `/etc/alternatives/mpif77'
[rootxblade08 ~]# file /etc/alternatives/mpif77
/etc/alternatives/mpif77: symbolic link to `/usr/bin/opal_wrapper-1.2.5-gcc-32'
[rootxblade08 ~]# rpm -qf /usr/bin/opal_wrapper-1.2.5-gcc-32
openmpi-devel-1.2.5-2.el5


Since I am testing openmpi, I would like keep its Fortran compiler. How can I know the largest data type supported? And which modification is needed for me?


 


Wang Wen Hao


 


 



在2008-05-06，"Tim Prince" <TimothyPrincesbcglobal.net> wrote：


The message is a bit strange, but it should tell you that your Fortran 
compiler doesn't support the real*16 extension.  You could rebuild lam 
with a compiler which does support such an extension, such as the compiler 
you must have used with openmpi.
By old-style, the message presumably refers to the standard way, since 15 
years ago, of specifying data types with selected_real_kind.  However, 
making a cosmetic change to your source won't allow it to compile, unless 
you change your source to select the largest data type supported by the 
compiler.



 


网上订比萨天天有奖

  

  
  
   
     
    

  

    Re: LAM: can lam-7.1.2 work together
with lamtests-7.1.4?
  


  

     country flaguser name
United States		
     2008-05-06 20:51:17
  


  

    
Steven wrote:
> Hi Tim:
>  
> Thanks for your response!
>  
> I checked mpif77. It seems provided by openmpi.
>  

> 
> Since I am testing openmpi, I would like keep its
Fortran compiler. How can I know the largest data type
supported? And which modification is needed for me?
>  

You should be able to verify which compilers were used for
your openmpi, e.g.
mpif77 -v
As mpif77 would be just a wrapper, the actual compiler (g95,
or a gfortran 
of the last 2 years, or a commercial Fortran?) should also
be present on 
that system.  In order to make a lam mpif77 with the same
Fortran 
extensions, you would need to configure and build lam with
the same 
Fortran compiler.


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