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

Copyright

Copyright (c) 2008-2012, Forschungszentrum Juelich GmbH, Federal Republic of Germany
All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
  • Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
  • Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
  • Neither the name of the Forschungszentrum Juelich GmbH, nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
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Release Notes

sionlib Version 1.3p5: (March 2012)

  • --> see http://www2.fz-juelich.de/jsc/sionlib/
  • - New features in 1.3p5:
  • - Updates/Bugfixes 1.3p5:
    • IBM BG/Q / Cray XK6 support
    • bug fixes

sionlib Version 1.3p4: (Aug 2011)

  • --> see http://www2.fz-juelich.de/jsc/sionlib/
  • - New features in 1.3p4:
    • new tool: sionversion: shows version number
    • more support for collective write/read functions
  • - Updates/Bugfixes 1.3p4:
    • internal optimization, if fileptr is not used by application
    • bug fixes

sionlib Version 1.3p2: (July 2011)

  • --> see http://www2.fz-juelich.de/jsc/sionlib/
  • - New features in 1.3p2:
    • SION debug supports now OpenMP
  • - Updates/Bugfixes 1.3p2:
    • sionconfig changed for Linux default, library name contains now precision
    • sion_fread: check feof before read data, move to next chunk if necessary
    • correct handling of second_fp, needed for compression libraries
    • serial read fileptr parameter was not set in each case

sionlib Version 1.3p1: (June 2011)

  • --> see http://www2.fz-juelich.de/jsc/sionlib/
  • - New features in 1.3p1:
    • Support for OpenMP and hybrid programs (MPI+OpenMP)
    • internal I/O layer using POSIX or ANSI-C calls
    • experimental: collective I/O (MPI)
    • partest: new option handling
  • - Updates/Bugfixes 1.3p1:
    • several fixes

sionlib Version 1.2p2: (May 2010)

  • --> see http://www2.fz-juelich.de/jsc/sionlib/
  • - New features in 1.2p2:
    • Multi-File support in serial tools and API
    • New installation process with configure tool
    • make test (serial and parallel)
    • New serial tool: sioncat
  • - Updates/Bugfixes 1.2p1:
    • Restructured source code
    • sion.h cleaned, contains now only public interface
    • several fixes

sionlib Version 1.1p9: (November 2009)

  • - Updates/Bugfixes 1.1p9:
    • Fortran interface updated

sionlib Version 1.1p8: (November 2009)

  • - 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://www2.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://www2.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
last change 28.01.2009 | Wolfgang Frings | Print