<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><br><div><div>On 24 Jan 2017, at 12:02, Maitraya Bhattacharyya <<a href="mailto:maitraya.linux@gmail.com">maitraya.linux@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div dir="ltr"><div><div><div><div><div>Hi all,<br><br><br></div>Does anyone know how the data is formatted into HDF5 files as outputted by CactusPUGHIO. I specifically want to know how the lapse, shift and spatial metric are stored in a unigrid inside the hdf5 files. <br><br></div>Any example file would be most welcome.<br><br></div>It's just that I am trying to format some data into a format which is recognized by EHFinder.<br></div></div></div></blockquote><div><br></div><div>Hi,</div><div><br></div><div>The format of files produced by CactusPUGHIO is in the CactusPUGHIO documentation. You can find the documentation about each thorn in the ET at</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span><a href="https://einsteintoolkit.org/documentation/ThornDoc/">https://einsteintoolkit.org/documentation/ThornDoc/</a></div><div><br></div><div>If you scroll down to the CactusPUGHIO arrangement, you will find the thorn IOHDF5 (<a href="https://einsteintoolkit.org/documentation/ThornDoc/CactusPUGHIO/IOHDF5/">https://einsteintoolkit.org/documentation/ThornDoc/CactusPUGHIO/IOHDF5/</a>) which is the thorn that does the output of HDF5 files from PUGH. Section 7 is entitled "Importing External Data Into Cactus With IOHDF5", and the format of the HDF5 file that you need is described there. There is also a "well-documented example C program" referred to from this documentation (Cactus/arrangements/CactusPUGHIO/IOHDF5/doc/CreateIOHDF5datafile.c) which creates such a file.</div><div><br></div><div>The data itself should be a 3d dataset in Cartesian coordinates. This means that if your metric is expressed in spherical coordinates, you will need to do a basis transformation to get gxx etc from grr etc.</div><div><br></div></div><div apple-content-edited="true">
<div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div>-- </div><div>Ian Hinder</div><div><a href="http://members.aei.mpg.de/ianhin">http://members.aei.mpg.de/ianhin</a></div></div></div></div></div>
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