[PVFS2-users] pvfs2 + mpich2

[Ryuta Suzuki]

Thank you, Rob! It makes sense now. I appreciate it very much. Now I 
have another question which may or may not be  relevant to PVFS2 itself.

When I reconfigure MPICH2 for PVFS2, I got the following link error

/h/suzu0037/Local/MPI/mpich2/lib/libmpich.so: undefined reference to 
`ADIO_PVFS2_operations'

I still can't figure this out where libmpich try to refer to this name. 
I obtained the newest mpich2, i.e., mpich2-1.0 and I presumed that romio 
is already patched.

--Ryuta

Robert Latham wrote:

>On Mon, Mar 07, 2005 at 03:45:33PM -0600, Ryuta Suzuki wrote:
>  
>
>>Hi Rob,
>>
>>I found out servers didn't start out on other nodes at all. My 
>>installation is without root access. It's still not clear to me what to 
>>do with local mount point and data storage for each node. I set both of 
>>them on NFS mounted directories. I might misunderstand what PVFS2 is 
>>supposed to do.
>>
>>So my goal is to set PVFS2 to enable MPI-IO (ROMIO) capability over 
>>network connected workstations so that I can run and debug my code 
>>without logging into crowded cluster system. I very very much appreciate 
>>your help. Thank you very much.
>>    
>>
>
>(please do not forget to copy pvfs2-users )
>
>I run pvfs2 as a non-root user all the time on our clusters here.
>
>The 'local mount point' is a way to distinguish between multiple pvfs2
>file systems on the same server.   If you don't have the kernel module
>loaded, you can make up anything you want for it. "/mnt/pvfs2" is a
>common choice. 
>
>The "data storage" can just be any directory on a local file system.
>Our workstations here have a large partition mounted on /sandbox, and
>I usually make /sandbox/robl/pvfs2-storage my storage directory.  You
>can use /tmp, but watch out for cron jobs that delete files overnight
>or upon node reboot.  It should definitly not be NFS, since you
>won't get good performance at all with many servers running.
>
>Does all that make sense?
>==rob
>
>  
>