v2.7 [Nov 13, 2013]
1. VisIt was modified to use the newly released VTK-6.0.
2. VisIt now allows the user the ability to specify the floating point precision used in its internal calculations.
3. Several enhancements have been made to the database readers.
- A reader was added to read GHOST (Geophysical High Order Suite for Turbulence) files.
- A reader was added to read BOUT files.
- The OpenFOAM reader was enhanced to support newer OpenFOAM conventions.
v2.5 [Aug 21, 2012]
Host profiles were added for LLNL's cab machine.
The host profiles for LLNL's atlas machine were removed because the machine was retired.
The partition in the host profile for ORNL's lens machine was changed from analysis to computation.
VisIt now runs the chaos 4 version on LLNL's rzbeast and gremlin machines instead of the default chaos 5 version.
The host profiles for the Flux and Nyx clusters at the University of Michigan Center for Advanced Computing were updated.
v2.3 [Sep 21, 2011]
VisIt is a distributed, parallel visualization and graphical analysis tool for data defined on two- and three-dimensional (2D and 3D) meshes. Version 2.3.2, is primarily a bug-fix release that resolves over a dozen important issues. * VisIt no longer hangs when displaying from a Linux computer to a MacOS X computer over X11.
* If you have a running session with multiple windows, and you restore a session with one window, VisIt no longer unexpectedly exits.
* Curve plots created via the operators/Lineout variable menu in a plot variable menu are now handled properly when the variable name contains spaces.
* When you using cross-mesh field evaluations, VisIt now correctly issues a warning when accessing invalid time slices.
* The VisIt_RectilinearMesh_setBaseIndex function in Libsim now behave properly.
* A bug was corrected in the Enzo reader that caused it to fail sometimes on Windows.
* A bug was corrected in the PF3D reader where the data was not being properly decompressed for one of the compression schemes.
* The PF3D reader was modified so that it doesn't crash when changing timesteps and some of the subfiles are not readable.
* Repeatedly passing character array variables with different string values to Libsim was broken. In the old scheme, arrays were assumed to contain the same contents and conversion to C-style strings under the covers would only happen once.
* A bug was corrected in the principal_tensor, principal_deviatoric_tensor and tensor_maximum_shear expressions, where a cutoff used to prevent numeric overflows and underflows was too argressive causing the expressions to calculate incorrect values for small values.
* VisIt again honors vis window size information stored in session files and config files for the case where there is a single vis window.
* The InverseGhostZone operator is now more agressive about invalidating data limits so the limits shown in the legend will reflect the values in the ghost data only.
* The Xdmf reader now correctly reports simulation time.
* The VCell reader from UCHC was added.
* The Enzo reader was enhanced to support the multi-resolution control operator.
* Libsim was enhanced to have a VisItGetSockets function that returns the socket file descriptors used by the VisItDetectInput function. This new function lets you obtain the socket descriptors in case you want to add them to your own select-based event loop.
* VisIt can now read NumPy array files (via the BOV reader). Supported data types are byte, short, 32-bit integeres, float and double.
* Serial and parallel host profiles were added for LLNL's coastal, rzalastor and rzzeus systems.
