Continuity News
May 1st, 2007: Continuity 6.3 revision 3127 was released. Highlights include:
- Massive memory leak fixed in electrophysiology
- Fixed bug in material law with transversely isotropic exponential function of Lagrangian strains
- Element labels can now use regular expressions in the list volume form.
April 26th, 2007: Continuity 6.3 revision 3099 was released. Highlights include:
- Cont6 files (pickle files) are now compressed and decompressed when saved and loaded.
- All data sent to and from remote server is compressed resulting in a 3X speed up in client/server communications.
- Added 40 new unit test cases.
- Fixed old event/threading leak where a new event is propagated during the creating of each new quad surface. This fixes limitation where only 30 surfaces could be rendered.
- Added the ability to have up to 10 user defined commands in the options menu.
- Systematically tested all example scripts in example directories for reliability.
Added ability to render contours (isolines) to OpenMesh quads by implementing a marching squares algorithm.
- Many improvements for the electrophysiology equation editor.
- Optionally automatically update the biomechanics initial conditions during nodal refinement.
- Force boundary conditions are working again, and list boundary conditions properly lists them (as natural bcs)
- Solving algorithm updated to allow use of an ODE-based active stress model.
- Modified the refine form to allow user to input customize xi's during refinement.
February 23th, 2007: Continuity 6.3 revision 2880 was released. Highlights include:
- Critical bug fix with building boundary conditions from scratch
- Various bug fixes and code optimizations
February 14th, 2007: Mark your calendar: Continuity Summer School scheduled to July 30th to August 3rd, 2007
February 13th, 2007: Continuity 6.3 revision 2853 was released. Highlights include:
- Critical bug fixes with Mac/Linux builds
- Fixed problems with volume calculations.
- Equations editor improvements
- Improved list nodal solutions and list boundary conditions
- Added more useful error messages with threads/no threads client/server conflicts.
January 26th, 2007: Continuity 6.3 revision 2755 was released. Highlights include:
- Enigmatic "pickle" files have been replaced with more intuitively named "cont6" files. All problem data will now be saved and read using this convension.
- Major bug fix for selective refinement for 2D (and 1D) problems.
- Updated comments for all the variables for Beeler Reuter model.
- Added Fitz-Hugh Nagumo electrophysiology model.
- Refactored parallel electrophysiology to use same mpi system as biomechanics. This allows "cell models" definited using the equations editor to automatically work in parallel.
January 8th, 2007: Continuity 6.3 revision 2684 was released. Highlights include:
- Parallelized biomechanics nonlinear solver to work on a cluster. Some problems show a 10X speed up when solved in parallel.
- Implemented elastica materials for biomechanics
- For Windows, continuity server capable of using a web service to dynamically electrophysiology cell model shared object. A Linux webserver is also in development.
- Created a "batch" mode of Continuity accessible from the command line with the --batch [script] option.
- Fixed problems with loading pickle files which make use of imaging module
- Optimized serial and parallel biomechanics solver (for windows and linux) using a c extension for a small part of the global stiffness matrix assembly.
Fixed problems with using value exceptions in active and material forms if > 3 fiber angles are defined in the nodes form.
December 21st, 2006: Initial tests of parallel Biomechanics module results in ten-fold speed-up using MPI on 25 nodes of a Rocks Linux cluster
November 11th-17th, 2006: Fred Lionetti demos Continuity in the NBCR booth at Supercomputing 2006 in Tampa, FL.
October 31st, 2006: Continuity 6.3 revision 2486 was released.
October 4th, 2006: Continuity 6.3 revision 2414 was released. Highlights include:
- The results of "List elements" can be saved
- Biomechanics bug fixes
EquationsEditor can produce working Fortran code to dynamically create an ionic model
See release notes for details.
September 22th, 2006: Continuity 6.3 revision 2382 was released. Highlights include:
- Critical bug fix for MacOS X
- Fixed Windows installer
- Detects and reports incorrect version of python (i.e. NOT 2.3) during startup.
- Fixed fields averaging bug for rendering fields
- Modified quads class (Element Surfaces) for greater flexibility in assigning colors. In particular, it is now possible to directly set the hsv value for any rendered surface.
See release notes for details.
September 12th, 2006: Continuity Developer Trac goes online
September 8th, 2006: New MoinMoin Wiki-based website launched
September 5th, 2006: Continuity 6.3 revision 2362 was released. Highlights include:
- For windows version, no system32 libraries are overwritten
- Introduction of "Equations Editor" found in Electrophysiology
- Various bug fixes
See release notes for details.
August 11th, 2006: Continuity 6.3 revision 2308 was released. Highlights include:
- Improved reset
- Added "recent" to file menu that contains recently opened problem files
- Improved plotting (Windows only)
- "Send" performs a sanity check of the basis functions, nodes, and elements
- Improved support for 1D/2D meshes including mesh refinement, and new examples
- Improved fitting, including new examples
- Introduction of Biotransport model and simple reaction diffusion problem
- Massive changes to boundary conditions form and its underlying data structure (which also apply to fitting constraints form subclass)
- Various other bug fixes
See release notes for details.
August 7th - 12th, 2006: NBCR Summer Institute was held at UCSD.