Don, just a comment on sizing. H5D.getStorageSize returns the (allocated) dataset size
in bytes and NOT the number of elements in your dataset. 'storageSZ' in your code is not the number of floats in your dataset. Maybe you're doing stuff in your code that you haven't shown us that makes incorrect assumptions about sizes. Best, G. From: [email protected] [mailto:[email protected]] On Behalf Of Donald Brandon Sent: Monday, September 19, 2011 2:22 PM To: HDF Users Discussion List Subject: [Hdf-forum] memory issues when reading multiple datasets Hello all: I have another problem that I could use some help with. In a nutshell, I have multiple datasets that I am trying to read arrays from and then work with those arrays one by one. The structure of the .h5 file kinda look like this: Group<root> Group<Group1> Group<GroupA> Group<Group_a> Dataset<1> Group<group_b> Dataset<1> Group<GroupB> Group<Group_a> Dataset<1> Group<group_b> Dataset<1> Group<Group2> Group<Group_a> Dataset<1> Group<group_b> Dataset<1> Group<GroupB> Group<Group_a> Dataset<1> Group<group_b> Dataset<1> I am recursively going through each group and then executing code that looks something like this: public float[] GetDepthArray(H5DataSetId dataset) { H5DataTypeId datasetType = H5D.getType(dataset); H5T.H5TClass datasetClass = H5T.getClass(datasetType); H5DataTypeId datasetNativeType = H5T.getNativeType(datasetType, H5T.Direction.ASCEND); long storageSZ = H5D.getStorageSize(dataset); float[] dArray = new float[storageSZ]; H5D.read(dataset, datasetNativeType, new H5Array<float>(dArray)); return dArray; } After about the seventh iteration, the code will fail with an AccessViolationException - "Attempted to read or write protected memory. This is often an indication that other memory is corrupt." Anyone have advice as to whether or not I should be cleaning something up after each iteration that I am not seeing? My system RAM seems to be un-phased after each iteration so at least it doesn't look like I am losing memory anywhere... Thanks for the help! DB
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