Known Bugs and Patches for ROMIO 1.0.2

• In the collective read and write routines, there is an obscure bug that causes an error when a process reads/writes exactly 1 byte from offset 0 in the file. A patch for fixing this problem is available here.
• In the implementation of ROMIO on the PVFS file system, there is a bug that causes a segmentation fault. A patch for fixing this problem is available here.

General Instructions for Applying a Patch

• Download the patch file. On many browsers, you can download a file by right-clicking on the link. Do not cut and paste the file from the display of the browser.
• Place the patch file in a directory that is one level above the romio directory. If you are using MPICH, place it in the main mpich directory.
• Then do
  patch -p0 < patchfile
  It is important that you use the -p0 option to patch.
• Then reconfigure and rebuild ROMIO.