On 1/9/06, Robert Latham <[EMAIL PROTECTED]> wrote: > Building flash-io requires a bit of work. it's unlikley to work out > of the box. You'll have to modify an existing makefile, but before > you do that you need to make sure you've got a properly working > software stack (described more below). > > > HDF5 makes MPI-IO calls. those MPI-IO calls (at least in ROMIO) are > the ones that talk to PVFS2. The things you need to do are > - set up PVFS2 > - build, say, MPICH2 with PVFS2 support > - build HDF5 with support for parallel IO (the HDF5 documentation has > the details) > - build FLASH-IO against your HDF5 library (modify Makefile.chiba so > that everything points to the correct location) > This is very helpful to me. Thanks a lot!
> > 2) I can not run mpi_tile_io correctly, the input and output are like: > > # mpirun -np 100 mpi-tile-io --nr_tiles_x 25 --nr_tiles_y 4 > > --sz_tile_x 100 --sz_tile_y 100 --sz_element 32 --filename > > /mnt/pvfs2/foo > > problem with execution of mpi-tile-io on cse-wang-server.unl.edu: > > [Errno 2] No such file or directory > > problem with execution of mpi-tile-io on cse-wang05b.unl.edu: > > [Errno 2] No such file or directory > > problem with execution of mpi-tile-io on cse-wang-server.unl.edu: > > [Errno 2] No such file or directory > > looks like there's not a common file system between > cse-wang-server.unl.edu and cse-wang05b.unl.edu ? Or maybe pvfs2 > isn't mounted on those machines? I did not mount pvfs2 on the cse-wang-server previously. Now I have pvfs2 mounted on both machines: [EMAIL PROTECTED] mpi-tile-io]# ls /mnt/pvfs2 foo include lost+found mpiblast [EMAIL PROTECTED] linux]# ls /mnt/pvfs2 foo include lost+found mpiblast The MPICH2 was also properly setup: [EMAIL PROTECTED] mpi-tile-io]# mpiexec -l -n 2 hostname 1: cse-wang-server.unl.edu 0: cse-wang05b.unl.edu However, the same problem still exist: [EMAIL PROTECTED] mpi-tile-io]# mpirun -np 100 mpi-tile-io --nr_tiles_x 25 --nr_tiles_y 4 --sz_tile_x 100 --sz_tile_y 100 --sz_element 32 --filename /mnt/pvfs2/foo problem with execution of mpi-tile-io on cse-wang-server.unl.edu: [Errno 2] No such file or directory problem with execution of mpi-tile-io on cse-wang05b.unl.edu: [Errno 2] No such file or directory .... What am I missing here? Peng _______________________________________________ PVFS2-users mailing list [email protected] http://www.beowulf-underground.org/mailman/listinfo/pvfs2-users
