File Release Notes and Changelog
Release Name: 2.2.8
Notes:
Changes: Notation: *+ fixed bug ++ important new feature o+ optimization + less important modifications FR xxxx and SR xxxx are IDs in the "Feature Request" and "Support Request" Trackers at SourceForge.net Mon Mar 12 05:06:31 CET 2007 -- v2.2.8 ++ receivers can be located at arbitrary positions, read from a file, not necesarily at computational nodes. See the REC_LINE block FR 1639079 ++ multiple sources, with location and delay-time read fromm a file. See SRC_DEF block FR 1675299 Thu Feb 8 16:52:09 CET 2007 -- v2.2.7 ++ materials can have heterogeneous distributions using DIST_XXXXX blocks (see EXAMPLE/InaBox) SR 1631862 ++ new DIST_HETE1 interpolates linearly from a regular grid (see EXAMPLE/InaBox) *+ fixed bug when writing "Stability_sem2d.tab" + added a FAQ to the user's guide SR 1653849 1648483 Thu Jan 18 16:21:36 CET 2007 -- v2.2.6 + Kelvin-Voigt viscosity: fixed wrong format in initialization outputs + PRE/ViewMeshQuality.m: modified, see user's guide section 2.4 + EXAMPLES/TestFlt1D/ : corrected Par.inp Wed Nov 1 22:45:39 CET 2006 -- v2.2.5 ++ symplectic time-stepping algorithms, PFR and PEFRL (4th order) o+ Reverse Cuthill-McKee element reordering + PostScript snapshots for each component in P-SV *+ abort if undefined boundary tag *+ first sample in seismograms is t=0 *+ added Kelvin-Voigt to Newmark solver Wed Jan 18 10:51:01 CET 2006 -- v2.2.4a *+ Kelvin-Voigt routines fixed for g95 compiler Mon Aug 22 22:55:56 CEST 2005 -- v2.2.4 ++ SH waves (anti-plane, scalar wave equation), see "ndof=1" in &GENERAL ++ leapfrog (staggered centered-difference) is now the default time scheme It is faster, uses less memory and allows accurate explicit treatment of dynamic fault boundaries (see "kind" in &TIME) ++ Kelvin-Voigt material, only with leapfrog (see &KELVIN_VOIGT) ++ bc_abso: new implementation, absorbing boundaries are now second order in dt *+ faults: mapping to the fault coordinate system was handled incorrectly (this bug might have corrupted curved faults in P-SV) *+ time scheme: consistent check for stability in dissipative schemes o+ faster initialization (changed the node numbering algorithm) o+ optimization: up to 50% performance gain by declaring NGLL as parameter in core subroutines (ELAST_KD). Before compiling, the user must edit elastic.f90 setting OPT_NGLL to a frequent value. o+ memory optimization: jacobian and local weights not stored + faults: input initial tractions renamed + new input initial stress + outputs: PostScript snapshots of color scalar fields (set "vector=F, color=T" in PLOT_POSTSCRIPT) + post: sem2d_view.m for Matlab + post: "Snapshot_*.ps" renamed to "x_*.ps" where x=d,v or a. Mon Feb 7 23:38:44 CET 2005 -- v2.2.3 + outputs: binary formats, see "bin" option in PLOTS field selector "fields" stress and strain outputs + pre- and post-process: tools for visualization under gnuplot and Matlab, for conversion of output to ascii (see PRE/ and POST/) + post: movie.csh runs now with animate (ImageMagick) instead of xanim and gifsicle instead of gifmerge + doc: more about the method, mesh verification, output formats *+ bc_swfflt: NSAMP in output header file was inaccurate *+ mesh_cartesian, mesh_emc2 and init: bugs higlighted by g95 compiler (G.Wimpey) lun Aug 9 20:15:09 EDT 2004 -- v2.2.2 *+ Intel fixed their bug in the "transfer" intrinsic, the code now works with Intel compiler ifort, version 8.0.046_pe047.1 *+ fixed bug in the numbering algorithm + fixed POST/movie.csh jeu nov 13 20:02:09 EST 2003 -- v2.2.1 *+ emc2, cracks and faults: bug fixed in the handling of crack tip nodes. As a new convention, crack tip nodes must be assigned a special tag: -1. mar oct 28 17:08:10 EST 2003 -- v2.2 ++ boundary conditions: new kind BC_SWFFLT, slip weakening fault *+ boundary conditions: bug fixed in the numbering subroutine + seismograms: fixed the scripts (don't need ShowSeis_sem2d.csh anymore) + time scheme: parameterized dissipation in explicit Newmark-alpha o+ solver: optimized for memory + distributions: new kind PWCONR jeu oct 23 15:13:48 EDT 2003 -- v2.1beta ++ new boundary condition: linear slip fault (BC_LISFLT input block) + "Periodic" flag in BC_ABSORB + doc: explanation of seismograms data format lun oct 13 19:58:59 EDT 2003 -- v2.0
