Release 0.1 beta (6481) 22 December 2009

• New Features

  • Support of Hierarchical Matrix compression for boundary element matrix. See example in documentation for details, and Knittel et al 105, 07D542 (2009) (postprint pdf). This reduces the memory requirements for the boundary element matrix substantially.

• Bugfixes/Improvements

  • Minor improvements manual (Example 1 and 2, nmagpp, mayavi, 6170, updated MPI section)

  • Updated plot.dat and plots for Example Hysteresis loop for thin disk to fix documentation bug (thanks to Weiwei Wang for spotting this, 6326).

  • The time stopping criteria are now more faithfully respected. A new optional argument, 'exact_tstop', has been added to 'Simulation.advance_time' and to 'Simulation.set_params' to give more freedom to the time integrator, in case performance is a concern and exact time-stopping is not really needed.

  • Updated packages to their latest stable release in the compile from source. We are now using: Sundials 2.3.0, HDF5 1.6.10, Python 2.6.4, pytables 2.1.2, NumPy 1.3.0, IPython 0.10.

    This means an existing from-source installation can not be updated using make update.

  • The regression tests can now be called with three different targets (6430):

    make check : runs all fast tests (should complete in less than 5 minutes). This is a good test to run after compiling nmag (from source).

    make checkmpi : runs mpi-related checks

    make checkslow : runs tests that take longer (order of hours)

    make checkall : run all tests together

    (Previously, the mpi tests were part of target 'check'.)

  • The virtual machine is now based on Debian Lenny (the current stable version of Lenny).

• Interface changes

  • We stop providing a Debian package for this release. The from source compile works out of the box on Debian systems.

In this release, we update the install from source, and the virtual machine to version 0.1-6481.

Release 0.1 beta (6163) 30 March 2009

• Bugfixes:
  • Fixed bug that resulted in simulation hanging when running in MPI mode (6039)
  • Solved error in regression test (test_gmsh1_0_import.py). The error was in the test code, not in the conversion code. (5987)
• New Features:
  • New functionality: Zhang-Li spin torque coupling term for uniform current densities added and documented. (6133)
• Improvements:
  • Reduced memory footprint (by approx 7% for the problem in manual/example2) (6098)
  • Documented load_m_from_h5file (6041) and save_restart_file (6096)
  • Document LLG equation of motion (new subsection in section Background), and llg_gamma_G parameter in MagMaterials (6014)
  • Added more save= usage examples for hysteresis() and relax() functions (6096) in documentation of hysteresis command.
  • Added MPI-regression tests (6031)
  • tidied up file tree (removing out-dated examples, etc) (6059)
  • Added mpi debug function nmag.mpi_hello() (6068)
  • Allow to switch on debug messages from slaves (usually switched off) using --slavelog
  • Adding release date to output of nsimversion (6153)
• Interface change:
  • Configuration files (RUNID_*.conf) are now only written when the --dumpconf switch is provided (6093)

In this release, we update the install from source, the debian package (etch), and the virtual machine to version 0.1-6163.

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