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| -rw-r--r-- | release_docs/INSTALL_parallel | 28 |
1 files changed, 22 insertions, 6 deletions
diff --git a/release_docs/INSTALL_parallel b/release_docs/INSTALL_parallel index b2e1eec..eacaf68 100644 --- a/release_docs/INSTALL_parallel +++ b/release_docs/INSTALL_parallel @@ -17,12 +17,14 @@ of running the parallel test suites. 1.1. Requirements ----------------- -PHDF5 requires an MPI compiler with MPI-IO support and a parallel file system. -If you don't know yet, you should first consult with your system support staff -of information how to compile an MPI program, how to run an MPI application, -and how to access the parallel file system. There are sample MPI-IO C and -Fortran programs in the appendix section of "Sample programs". You can use -them to run simple tests of your MPI compilers and the parallel file system. +PHDF5 requires an MPI compiler with MPI-IO support and a POSIX compliant +(Ref. 1) parallel file system. If you don't know yet, you should first consult +with your system support staff of information how to compile an MPI program, +how to run an MPI application, and how to access the parallel file system. +There are sample MPI-IO C and Fortran programs in the appendix section of +"Sample programs". You can use them to run simple tests of your MPI compilers +and the parallel file system. Also, the t_posix_compliant test in testpar +verifies if the file system is POSIX compliant. 1.2. Further Help @@ -274,6 +276,20 @@ if the tests should use directory /PFS/user/me, do shell initial files like .profile, .cshrc, etc.) +Reference +--------- +1. POSIX Compliant. A good explanation is by Donald Lewin, + After a write() to a regular file has successfully returned, any + successful read() from each byte position on the file that was modified + by that write() will return the date that was written by the write(). A + subsequent write() to the same byte will overwrite the file data. If a + read() of a file data can be proven by any means [e.g., MPI_Barrier()] + to occur after a write() of that data, it must reflect that write(), + even if the calls are made by a different process. + Lewin, D. (1994). "POSIX Programmer's Guide (pg. 513-4)". O'Reilly + & Associates. + + Appendix A. Sample programs --------------------------- Here are sample MPI-IO C and Fortran programs. You may use them to run simple |