On Sat, Mar 23, 2013 at 11:45:07AM +0800, xihuang sun wrote: > Thanks for sharing! > But I don't know how to build mpi-io-test.c correctly. How to configure and > make it correctly? I use mpicc and make this file alone and get a runable > program but it always set the filesize as 16*1024*1024. I think i have done > something wrong.
mpi-io-test has no dependencies outside of MPI, so there's no configure. One simply turns mpi-io-test.c into mpi-io-test , so there's no install. Perhaps it will help to see an example of mpi-io-test usage? mpiexec -np 64 ./mpi-io-test -y -f /mnt/pvfs2/testfile -b 134217728 where '-y' says sYnc after write '-f' gives the file to read/write '-b' is the per-process block size. So the line above will generate a 64*128 MiB file. But like I said in my last email, you probably should just use IOR. ==rob -- Rob Latham Mathematics and Computer Science Division Argonne National Lab, IL USA _______________________________________________ Pvfs2-users mailing list [email protected] http://www.beowulf-underground.org/mailman/listinfo/pvfs2-users
