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Re: [H5part] What is H5Block

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  • From: John Shalf <jshalf AT>
  • To: John Biddiscombe <biddisco AT>
  • Cc: h5part AT
  • Subject: Re: [H5part] What is H5Block
  • Date: Fri, 15 Jun 2007 13:53:21 -0700
  • List-archive: <>
  • List-id: H5Part development and discussion <>

I think H5Block provides the capability that you are looking for. It provides the ability to store the block-structured grids that are associated with the PIC calculation together with the particle data.

The H5Block interface should automatically re-integrate the chunks (the 64 volumes) into the single/un-domain-decomposed logical volume used in the calculation.


On Jun 15, 2007, at 9:03 AM, John Biddiscombe wrote:
I've been happily using H5Part particles for some time, but I need to write a bunch of volume chunks into HDF as well.
I have (say) 64 volumes which abut each other - the points along the edges are not duplicated (0->7, 8->15, 16->23, 24->31 etc etc). I was about to start a little utility to dump these volume chunks into hdf files and I thought. I wonder if this is what H5Block does?

What is H5Block ? I have not looked at it at all (yet).



John Biddiscombe, email:biddisco @
CSCS, Swiss National Supercomputing Centre | Tel: +41 (91) 610.82.07
Via Cantonale, 6928 Manno, Switzerland | Fax: +41 (91) 610.82.82

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