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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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