Which reminds me: can frequent Visit/CarpetHDF5 users confirm for me where
they get (a) Visit, and (b) CarpetHDF5? For me the answers are:

(a) the "Mac OS X - Intel 64 bit" binary from here:
https://wci.llnl.gov/codes/visit/executables.html

(b) the cactuscode VizTools trunk via svn:  svn co
https://svn.cactuscode.org/VizTools/CarpetHDF5/trunk/ CarpetHDF5

The instructions in the latter's README.txt seem a bit out of date, which
made me suspicious. The lines about "updating the paths to the HDF5
library", for instance:

install_name_tool -change '@executable_path/../lib/libhdf5.dylib'
'/usr/local/lib/libhdf5.1.dylib'
~/.visit/darwin-i386/plugins/databases/libEvisitCarpetHDF5Database_ser.dyli
b

Now my 64-bit installation generates three subdirectories in ~/.visit:
"2.4.2", "darwin-i386", and "darwin-x86_64". Of these, only "2.4.2" had
any content in the "plugins/databases/" subdirectory, and these dylibs
were *similar but not identical* in name to what's mentioned in the README
(e.g.,  libECarpetHDF5Database_ser.dylib rather than
libEvisitCarpetHDF5Database_ser.dylib).

So ... should I be using a different version of Visit (older, 32-bit,
etc.)?

Bernard

On 4/10/12 4:24 PM, "Ian Hinder" <ian.hinder@aei.mpg.de> wrote:

On 10 Apr 2012, at 22:21, Kelly, Bernard J. (GSFC-660.0)[UNIVERSITY OF

MARYLAND BALTIMORE COUNTY] wrote:

Hi all. I'd like to visualise some 3D data produced by an initial-data

run

of the EinsteinToolkit (Maxwell).

I'm outputting using CarpetIOHDF5; I have an output file

"hahndol::hahndol_coulomb.h5", and decided to use Visit, as recommended

by

cactuscode, etc.

I grabbed the CarpetHDF5 plugin code from svn, and installed as per

instructions (pointing at the ETK-installed HDF5 in my

Cactus/configs/<config-name>/scratch/external directory).

Starting Visit (2.4.2) , and trying to load a .h5 file yields the

following error:

-------------------------------------------------------------------------

--

----

The metadata server running on host localhost has exited abnormally.

VisIt

is trying to restart it.

Shortly thereafter, the following occured...

VisIt was unable to open

"/Users/bjkelly1/Projects/CODES/Cactus/exe/BL_IJS_test/hahndol::hahndol_c

ou

lomb.h5".  Each attempt to open it caused VisIt's metadata server to

crash.  This can occur when the file is corrupted, or when the

underlying

file format has changed and VisIt's readers have not been updated yet,

or

when the reader VisIt is using for your file format is not robust.

Please

check whether the file is corrupted and, if not, contact a VisIt

developer.

-------------------------------------------------------------------------

--

----

I have no idea whether the file is corrupted, but wanted to know: is the

CarpetHDF5 plugin up-to-date with the output of Maxwell's CarpetIOHDF5?

Any basic ideas where I might have gone wrong?

One problem can come from Visit trying to open too many files for the

maximum open file limit of your OS.  Mac OS, for example, has a very

small limit.  Try changing this with ulimit.  But ultimately, you should

try to find the actual error message.  I think there is an option for

Visit to output the errors to a file, but it's so long since I've used

Visit that I don't remember.  Probably someone else can fill that in...

--

Ian Hinder

http://numrel.aei.mpg.de/people/hinder

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