Users May 2016

users@lists.einsteintoolkit.org

11 participants
15 discussions

Merging carpet hdf5 data without creating additional files
by Michael Clark 17 May '16

17 May '16

Hello, I'm interested in ways to manipulate carpet hdf5 data from multiple jobs (e.g. from different output-XXXX directories of a simfactory-managed simulation) for visualization purposes. Currently, if I had a variable I wanted to plot, what I would do is run hdf5_merge on the separate .h5 files to generate a single hdf5 file and then use a visualization tool (like visit) with it. I'm curious if there is a means to do this differently: for instance, if one could load the separate .h5 files in python as some collection of data objects and then combine those objects, no separate and combined .h5 file would need to be produced. Then, if some means existed to create a visualization from that data object (e.g. through yt), the need for the combined .h5 file would be totally obsolete. I suspect this must already be possible in some manner, perhaps using other programs. I'd be curious to hear how, for instance, SimulationTools handles this problem.

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meeting minutes for 2016-05-16
by Roland Haas 16 May '16

16 May '16

Present: Barry, Eloisa, Steven, Zach, Roland, Yosef, Tickets: * 1853: Roland suggests to undo the change to reduce memory which resets the code to the last release * 1880: Roland suggests to update the test data with the new data, will follow up with Erik and Frank * 1889: requires discussion as to what the correct algorithm to compute a normalization constant for relative errors should be ET conference: * best train connection is from Rome, there is also a direct train connection from Munich, from Verona one has to take a bus then the train Yours, Roland -- My email is as private as my paper mail. I therefore support encrypting and signing email messages. Get my PGP key from http://keys.gnupg.net.

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meeting minutes for 2016-05-09
by Roland Haas 13 May '16

13 May '16

Present: Frank, Josh, Roland, Ian, Philipp, Erik, Peter Please register lunch preferences here http://goo.gl/forms/XAlDgYvxuK so that food can be ordered. Tickets: * failing Dissipation tests: these are caused by changes to AHFinderDirect related to scheduling. * poisson: not clear what causes this. Roland suspects that not all Jenkins slaves are exactly equal and that it only fails on this one * testsuite comparison is script received comments, Frank will look at them * HDF5 zlib etc detection: apply all patches and test, Ian to provide his changes as well Next ET release: * Frank will work toward it but we are waiting or some of the fixes to be tested first Workshop: * please submit your information about lunch and receiption information here: http://goo.gl/forms/XAlDgYvxuK Yours, Roland -- My email is as private as my paper mail. I therefore support encrypting and signing email messages. Get my PGP key from http://keys.gnupg.net.

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Einstein Toolkit Meeting Reminder
by Frank Loeffler 06 May '16

06 May '16

Hi Please consider joining the weekly Einstein Toolkit phone call at 9:30 am US central time on Mondays. As usual, you can find instructions how to join on the following web site: http://einsteintoolkit.org/community/support/ We use a Google hangout, with the URL: https://hangouts.google.com/call/5xt7voshalqmdcztr4zhfeox2ia Frank Löffler

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meeting minutes for 2016-05-02
by Roland Haas 02 May '16

02 May '16

Present: Steve, Roland, Eloisa, Matt, Ian, Josh, Erik, Peter, Tickets: * AHFinderDirect: apply proposed patch incl. comments * TimerReport and Cactus require c++11: with current fixes Cactus selects proper compiler options * HDF5 memory fragmentation: happens on stampede, datura due to use of realloc() with an initial allocation which is almost always too small. Ian will extract information out of (private) email thread to obtain an actionable item in the ticket. Suggest to send a bug report to HDF5. Put ticket on hold until we have sufficient information and a test case though. * McLachlan helper thorns: known how to do, ticket is a reminder * Parfile error concerning comments: Steve will take care of it Next ET release: * will have release (see previous minutes) but only maintenance due to no big new features * will discuss details next week when all are back Workshop: * remote access seems desirable but difficult to get set up properly. Will be discussed among organizers and requires some outside interest being voiced. Yours, Roland -- My email is as private as my paper mail. I therefore support encrypting and signing email messages. Get my PGP key from http://keys.gnupg.net.

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Users May 2016