philipp/hdf5
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[svn-r8876]

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Purpose:
Bug Fix

Description:
If an HDF5 file grows larger than its address space, it dies and is unable to
write any data.  This is more likely to happen since users are able to change
the number of bytes used to store addresses in the file.

Solution:
HDF5 now throws an error instead of dying.  In addition, it "reserves" address
space for the local heap and for object headers (which do not allocate space
immediately).  This ensures that after the error occurs, there is enough address
space left to flush the entire file to disk, so no data is lost.
A more complete explanation is at /doc/html/TechNotes/ReservedFileSpace.html

Platforms tested:
sleipnir, copper (parallel), verbena, arabica, Windows (Visual Studio 7)

Misc. update:
This commit is contained in:
James Laird
2004-07-14 14:32:51 -05:00
parent f0fe9b0114
commit d89d73048a
16 changed files with 647 additions and 17 deletions
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5
doc/html/TechNotes.html
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@@ -214,6 +214,11 @@ HDF5 Technical Notes  
A report on the implementation of a thread safe HDF5 library.
</td></tr>
<tr><td valign=top><a href="TechNotes/ReservedFileSpace.html">Reserved File Address Space</a>
</td><td>&nbsp;</td><td valign=top>
Description of HDF5's internal system for ensuring that files stay within their address space.
</td></tr>
<tr><td valign=top>
<a href="TechNotes/openmp-hdf5.html">Using HDF5 with OpenMP</a>
</td><td>&nbsp;</td><td valign=top>