[MPICH] mpich2-1.0.5p4 build failure with PGI 6.2

[William Gropp]

Ah, but you don't need to use the same compiler to built the MPI  
libraries as the compiler that the user is using, they only need to  
make the same decisions about basic datatype lengths and they need to  
have compatible libraries.  You should be able to use gcc to build  
MPICH2 with Nemesis, then use pgcc for the user program, with  
possibly a little tweeking of the compilation scripts.  Its that  
little tweeking that makes it easier to simply build with the same  
compiler, but it isn't a requirement.

Bill

On Apr 20, 2007, at 11:21 AM, Garrick Staples wrote:

> On Fri, Apr 20, 2007 at 09:52:52AM -0500, Darius Buntinas alleged:
>>
>> Sorry, nemesis doesn't support pg compilers (yet).  You can use  
>> gcc and
>> intel compilers though.
>
> Well, that's it for my user.  There doesn't seem to be any MPI
> implementation that does gm and ROMIO+pvfs2 with PGI.
>
> -- 
> Garrick Staples, GNU/Linux HPCC SysAdmin
> University of Southern California