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Changelog. A lot less detailed than usual, at least for past
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history.
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2006/12/05: Taken out extra interfaces; inserted use modules with ONLY
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clauses where appropriate.
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2006/11/30: Fixed a bug in raw aggregation. Note: raw aggregation
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gives different results from smoothed with omega=0.0,
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because in the latter we have explicitly stored zero
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coefficients that would be absent in the first, thus
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generating different ILU factorizations.
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2006/11/28: Merged the mods for descriptors of large index spaces to
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avoid having the GLOB_TO_LOC array. Took the chance to
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reorganize the descriptor build routines and define some
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access functions for descriptor features and entries, so
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as not to use the descriptor components directly. Tested
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with AS, 2- and 3- level Post smoothers.
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2006/11/09: The allocatable version works, but under gcc42 there is a
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compiler bug when using -fbounds-check.
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2006/11/08: Merged the allocatable version; hope everything works!
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2006/11/08: Branched version psblas2-2-0-maint, and defined tag
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2.0.2.6
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2006/11/02: Done in the allocatable branch: repackaging of cdasb and
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friends, taking out AVL trees where they were not
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absolutely needed, and new dcsrmv routine.
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2006/11/01: Merged changes in the handling of data exchange.
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2006/10/03: Merged in the multilevel preconditioner stuff. This is
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still experimental, especially the interfaces are not
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stable yet.
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2006/10/03: Declared version 2.0.2.5 for reference purposes.
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2006/10/03: Fixed a bunch of minor bugs, incuding the sorting routines
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imsr and imsrx. Added a default call to blacs_exit inside
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psb_exit fixed a bad termination in test/pargen/ppde90.f90
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2006/09/02: Declared version 2.0.2, after having fixed a lot of
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details in the environment routines.
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2006/07/25: Defined a new psb_wtime function. Modified precset to
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have a non-optional INFO dummy argument.
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2006/07/06: Fixed bug in swaptran. Added psb_krylov generic interface.
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2006/07/04: Ooops, the GetRow mod in SMMP is a performance hit.
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Need to investigate further.
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2006/06/21: Bug fix in hb_read when dealing with symmetric matrices.
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2006/06/20: Rewritten symbmm and numbmm from SMMP to be intependent of
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CSR storage by using GetRow. Still need to test for
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performance.
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2006/06/16: Defined GetRow. This way we may close the mat objects.
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Next we will rewrite SMMP to only make use of GetRow,
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not to rely on CSR storage format.
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2006/05/29: Added BLACS-like routines for data communication,
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broadcasts, reductions, send/receive.
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2006/05/25: Added environment management routines.
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2006/05/03: Bug fixes, plus some change in the internals for SPINS,
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preparing hooks for insertion with local numbering.
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2006/04/24: Minor changes to the interface of dense tools routines,
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trying to achieve a uniform look & feel.
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Rewritten documentation; it is now reasonable, though not
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perfect, except for the preconditioner routines.
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We can now declare RC3.
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2006/04/21: A bunch of fixes related to various matrix initialization
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problems that were revealed while testing on SP5.
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2006/04/18: Changed interface to spasb and csdp: better handling of
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regeneration. To be tested further for sophisticated uses.
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2006/03/31: We declare RC2 now. Improved I/O routines in test/Fileread.
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2006/03/24: We have a complex version now, working (not necessarily bug free).
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2006/03/15: Started move to complex version.
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2006/03/01: Complete restructure of PREC section.
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2006/02/01: New naming scheme.
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2006/01/01: New multilevel preconditioning wih smoothed aggregation.
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2005/09 : Now enabled UMFPACK complete factorization as basis for AS.
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2005/05/04: Now enabled SuperLU complete factorization as basis for AS.
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2005/04/29: First version with decoupled 2-level.
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2005/04/06: Started work on decoupling the preconditioner aggregation
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for 2-level from the main factorization.
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2005/03/30: First version of new DSC/SP allocate/insert/assembly
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routines.
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2005/03/17: First version of RGMRES. To be refined.
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2005/03/08: dSwapTran aligned with dSwapData. Taken out SwapOverlap.
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also moved onto iSwapX.
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2005/03/07: dSwapData rewritten to achieve: 1. better performance;
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2. more flexible functionality. It is now possible to
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avoid SwapOvrlap entirely, relying on just SwapData.
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SwapTran is still alive, since it reads the descriptors in
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"transpose" mode. Also, added work areas to preconditioner
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routine, to avoid excessive allocation in the halo/overlap
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exchange.
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2005/03/04: Had to put in a workaround for a gfortran bug:
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tolower/toupper cannot be functions.
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2005/02/09: Explicit storage choice for the smoother. This seems
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to be changing a little bit the actual preconditioner.
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To be evaluated further.
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2005/02/08: Renamed F90_PSPREC to PSB_PRCAPLY and Preconditioner to
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PSB_PRCBLD. Changed the way PRCAPLY decides what to do.
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Still needs a PSB_PRCSET to be called before PRCBLD.
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2005/01/28: Started moving functionalities to a SERIAL F90 layer. Also
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defined a new COMM layer, to enable implementing SPMM
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directly in F90.
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2005/01/20: Finally taken out a direct call to the F77 DCSDP from
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SPASB.
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2005/01/18: After much work, we now have 2-level Additive Schwarz
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prototype implemented and working. We now start a major
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code cleanup that will take some time. Mainly we want to
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move a lot of the serial F77 functionality into a new F95
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serial layer, to simplify the parallel F95 code.
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2004/11/25: Following the introduction of Additive Shwarz and
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variants, we have now renamed DECOMP_ and friends as
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DESC_; this makes things more readable. Sooner or later
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we're going to merge this into mainline, but this version
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is still very much in a state of flux.
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2004/07/18: For use with gfortran we need to declare the pointer
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components with NULL() initialization. This rules out
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VAST and PGI.
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2004/07/15: First development version with gfortran from the current
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snapshot of gcc 3.5.0.
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It is now possible in PSI_dSwapData to opt for
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SEND|RECEIVE|SYNC data exchange; plan is to extend to all
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data exchange functions, plus making it available as an
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option from the F90 level.
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2004/07/06: Merged in a lot of stuff coming mainly from the ASM
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development; full merge will have to wait a little more.
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Among other things:
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use of psimod
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new choice parms for overlap
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new data exchange for swapdata, to be extended.
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multicolumn CSMM.
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use psrealloc
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new format for marking a matrix as suitable for update.
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2003/12/09: Changed DSALLOC and DSASB to make sure whenever a dense
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matrix is allocated it is also zeroed out.
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2003/10/13: Added call to BLACS_SET in the solvers to ensure global
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heterogeneous coherence in the combine operations.
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2003/09/30: Added LOC_TO_GLOB and GLOB_TO_LOC support routines.
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2003/09/30: Changed interface for smart update capabilities: choose
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with optional parameters in ASB routines.
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2003/09/16: IFC 7.0 had a strange behaviour in the test programs:
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sometimes the declaration of PARTS dummy argument with an
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INTERFACE would not work, requiring an EXTERNAL
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declaration. The proper INTERFACE works now with 7.1.
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2003/03/10: Halo data exchange in F90_PSHALO can now be applied to
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integer data; create appropriate support routines.
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2002/12/05: Initial version of Fileread sample programs.
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2002/11/19: Fixes for JAD preconditioner.
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2002/11/19: Methods for patterns: create a descriptor without a
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matrix.
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2001/11/16: Reviewed the interfaces: in the tools section we really
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need the POINTER attribute for dense vectors, but not in
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the computational routines; taking it out allows more
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flexibility.
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2001/09/16: Smart update capabilities.
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2001/03/16: Renumbering routines.
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2001/01/14: Added extensions to compute multiple DOTs and AMAXs at once;
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