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Memory problems, HDF5 library and R-1.2.2 garbage collection

NEN> When I try to load a single 50MB HDF5 file, the computer chokes
NEN> before completing the job as well.

I'll check this out and make sure there isn't gratuitous waste happening. 
Problems with the big file sound plausible, but the smaller chunks should
be doable.  Thanks for the test cases, btw..

http://www.isd.atr.co.jp/~eiji/swarm/HDF5samples.tar.gz
                                     ArchiverHDF5.hdf.gz
                                     testHDF5load.R

Plugin:

ftp://ftp.swarm.org/pub/swarm/src/testing/hdf5_0.9.tar.gz
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