Chapter 7 HPSS User Interface Configuration434 September 2002 HPSS Installation GuideRelease 4.5, Revision 2/usr/tps -id=20,root=hermes:zip5. To convert client root users to guest UID=100, enter:/usr/new -id=10,anon=1006. To export read-only to everyone, enter:/usr/bin -id=15,ro7. To allow several options on one line, enter:/usr/stuff -id=255,access=zip,anon=-3,ro8. To export files in a directory named /sources in a fileset named project.fileset:project.fileset:/sources -id=20,access=sandia.gov7.4.3 Files/var/hpss/nfs/rmtab Lists all currently mounted HPSS directories./etc/hosts Contains an entry for each host on the network./etc/networks Contains information about subnetworks on the network.7.5 MPI-IO API ConfigurationMPI-IO is not enabled in the install image distribution as it must be configured specificallyfor each site’s host MPI. The HPSS administrator must determine if MPI-IO support isdesired and, if so, which host MPI is to be used. A site-specific MPI-IO must be generatedusing make in the src/mpi directory, after the appropriate configuration changes have beenmade in Makefile.macros.To enable MPI-IO, change the MPIO_SUPPORT in Makefile.macros to on. MPI-IO will beconfigured to match the MPIO_MPI setting in the Makefile.macros, which selects the host MPI.The HPSS administrator should choose the appropriate configuration to use when building theMPI-IO subsystem. To build the MPI-IO library, cd to the $HPSS_DIR/src/mpi and execute make.This will generate an appropriate $HPSS_DIR/include/mpio_MPI_config.h.Only one MPI host is supported for each HPSS system. To change the MPI host, the administratormust edit the Makefile.macros to change the MPIO_MPI setting, and generate a new include/mpio_MPI_config.h file by doing a make clean followed by a make in the src/mpi directory.If the MPI host version is updated, HPSS MPI-IO should be reconfigured and remade, to be sureany changes to the host interfaces are accurate. The administrator should follow the sameinstructions as above for changing the MPI host.We currently support MPI-IO API for the following host MPIs: