SIONlib: Scalable I/O library for parallel access to task-local files

Copyright

Copyright (c) 2008-2009, Forschungszentrum Juelich GmbH, Federal Republic of
Germany
All rights reserved.
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modification, are permitted provided that the following conditions are met:

  • Redistributions of source code must retain the above copyright notice, this
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Release Notes

sionlib Version 1.1p9: (November 2009)

  • --> see http://www.fz-juelich.de/jsc/sionlib/
  • - Updates/Bugfixes 1.1p9:
      □ Fortran interface updated
      □ 

sionlib Version 1.1p8: (November 2009)

  • --> see http://www.fz-juelich.de/jsc/sionlib/
  • - New Features in 1.1p8:
      □ new option -X to partest: remove files after using
      □ 
  • - Updates/Bugfixes 1.1p8:
      □ bug fix: determines now right physical file distribution if local
        commicator is used and global rank 0 is different to local rank 0
      □ bug fix in siondump: print now correct filename for first file
      □ removed double open of file for write in sion_open
      □ fixes for performance improvements on IBM Blue Gene/P

sionlib Version 1.1p7: (September 2009)

  • - New Features in 1.1p7:
      □ additional function to get information about SION-file (e.g.
        sion_get_current_location, sion_get_bytes_written, sion_get_bytes_read)
      □ error handling enhanced
      □ Fortran interface enhanced
      □ siondump: new option -m (print map)
      □ partest: new option -Z offset, read data from other task to prevent
        cache effect in measurement
  • - Updates/Bugfixes 1.1p7:
      □ more tests on different platforms
      □ fixes for performance improvements on IBM Blue Gene/P
      □ partest: increased MAX_PE to 288k

sionlib Version 1.1p6: (May 5th 2009)

  • --> see http://www.fz-juelich.de/jsc/sionlib/
  • - New Features in 1.1p6:
      □ new wrapper functions sion_fwrite, sion_fread (beta)
      □ automatic determination of file system block size, if parameter is -1

sionlib Version 1.1p5 (beta): (February 4th 2009)

  • - first down-loadable version 1.1p5 of sionlib (beta)
    --> see http://www.fz-juelich.de/jsc/sionlib/
  • - New Features in 1.1p5:
      □ Multifile option (one sionfile consists of serveral phsical files) is
        implemented and tested
      □ Fortran Interface is implemented and tested
      □ parallel benchmarking programs partest and fpartest for sionlib and MPI
        /IO available
      □ sionlib with Fortran Interface is used in production code PEPC
      □ Doxygen documentation available
      □ simple parallel example program,
      □ serial utilities: sionsplit, siondump and sionmerge
      □ examples programs for converting application specific data to sionlib
        files
  • - Tests:
      □ tests on Blue Gene/P up to 64k cores, 2 TB files --> 90% of Peak
        bandwidth
      □ tests on IBM Power 6 and Linux-Systems
      □ first functional tests on Cray XT4

