Thanks, I have sucessfully built MPICH with configure command line "CFLAGS+='/opt/orangefs/include' ./configure --enable-romio --with-file-system=pvfs2". But when I link the the .o file with mpicc there are many errors as below:

=============================

/usr/local/lib/libmpi.so: undefined reference to `PVFS_FLOAT'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_Request_indexed'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_CHAR'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_Request_hvector'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_Request_resized'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_sys_finalize'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_sys_dist_setparam'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_perror'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_UNSIGNED_CHAR'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_sys_wait'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_sys_truncate'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_Request_free'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_sys_flush'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_debug_eventlog_to_mask'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_LONG'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_sys_lookup'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_DOUBLE'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_SHORT'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_sys_create'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_sys_remove'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_BYTE'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_util_resolve'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_sys_dist_lookup'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_sys_io'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_Request_vector'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_INT'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_Request_contiguous'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_sys_testsome'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_LONG_DOUBLE'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_Request_struct'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_util_init_defaults'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_Request_hindexed'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_UNSIGNED_LONG'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_isys_io'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_UNSIGNED'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_util_gen_credential_defaults'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_sys_getparent'

/usr/local/lib/libmpi.so: undefined reference to `PVFS_sys_getattr'

collect2: error: ld returned 1 exit status

===============================================

Vinson

On Tue, Nov 14, 2017 at 6:08 PM, Latham, Robert J. <robl@mcs.anl.gov> wrote:

On Tue, 2017-11-14 at 16:54 -0600, Weihao Liang wrote:
> Hi, all
>
> I have a question is that how to configure mpich-3.2.1 with orangefs-
> 2.9 (pvfs2)? I just want to enable the MPI-IO ability when running
> MPI program on pvfs2 filesystem.

The process is still the same it has always been.  OrangeFS is a
rebranding of what we used to call PVFS v2 :

Configure MPICH with the `--with-file-system=pvfs2` flag.

If you want to configure other file systems, add them with '+':

`configure --prefix=/usr/local/whatever --with-file-system=pvfs2+ufs`

==rob
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