28 lines
1.2 KiB
ReStructuredText
28 lines
1.2 KiB
ReStructuredText
.. _compatibility:
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Compatibility
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=============
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IOR has a long history. Here are some hints about compatibility with older
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versions.
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1) IOR version 1 (c. 1996-2002) and IOR version 2 (c. 2003-present) are
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incompatible. Input decks from one will not work on the other. As version
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1 is not included in this release, this shouldn't be case for concern. All
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subsequent compatibility issues are for IOR version 2.
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2) IOR versions prior to release 2.8 provided data size and rates in powers
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of two. E.g., 1 MB/sec referred to 1,048,576 bytes per second. With the
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IOR release 2.8 and later versions, MB is now defined as 1,000,000 bytes
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and MiB is 1,048,576 bytes.
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3) In IOR versions 2.5.3 to 2.8.7, IOR could be run without any command line
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options. This assumed that if both write and read options (-w -r) were
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omitted, the run with them both set as default. Later, it became clear
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that in certain cases (data checking, e.g.) this caused difficulties. In
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IOR versions 2.8.8 and later, if not one of the -w -r -W or -R options is
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set, then -w and -r are set implicitly.
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4) IOR version 3 (Jan 2012-present) has changed the output of IOR somewhat,
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and the "testNum" option was renamed "refNum".
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