ADDA 1.2 released

[Maxim Yurkin]

Dear ADDA users,

On behalf of ADDA contributors I am glad to announce that the new version of ADDA (1.2) has been released.

Below the most important changes in this release are summarized. For a more detailed list please see
http://code.google.com/p/a-dda/wiki/ReleaseNotes .

* Sparse mode is now fully integrated into ADDA and significantly improved. It is designed for very porous particles.
* Linked to new OpenCL FFT library from AMD, it is now the default one in OpenCL mode. Speed improvement is a few
times depending on the GPU.
* New iterative solver BCGS2 - an improved version of BICGSTAB.
* New command line option argument '-init_field read <filenameY> [<filenameX>]' to initialize an iterative solver by
the field read from file.
* Finally removed deprecated options -Cpr_mat and '-sg_format ddscat'.
* Several wiki pages were added and documentation was improved.
* Several improvements to Makefile.

You are advised to upgrade to a new version, which can be downloaded (both main package and, if needed, executable for
32- and 64-bit Windows) from: http://code.google.com/p/a-dda/downloads/

Finally, please note that ADDA is an open-source project which development relies on the community around it. There are
many ways to help:
* Using ADDA and advocating its use through publications and conference presentations.
* Active participation in the discussion group - http://groups.google.com/group/adda-discuss , in particular, sharing
your experience with other users.
* Commenting and improving wiki pages ( http://code.google.com/p/a-dda/w/list ) and other documentation.
* Locating bugs and proposing new features for ADDA, using the issue tracker - http://code.google.com/p/a-dda/issues .
* Contributing and improving the source code - http://code.google.com/p/a-dda/wiki/InstructionCommitters .

Best regards,
Maxim Yurkin.