What's New in NEMO

The latest official export version is nemo_3.2.4.tar.gz (Sat Aug 5 21:31:12 EDT 2006) , though you can also try the probably more recent nemo_cvs.tar.gz , which is a CVS enabled directory tree for anonymous CVS. The file VERSION_cvs contains a timestamp of that creation.

If you upgrade from a release 3.1.x you will need to read these upgrade details.

3.2.5: in CVS

note: falcON is now in active CVS, as opposed to an semi-regular batch of updates.

(24-sep) added mkgalaxy, a frontend for mkWD99disc and mkhalo to build a halo-buge-disk galaxy model (Dehnen)
(25-may) patches to allow objects > 2GB. (allocate.c, stdinc.h, filesecret.c)
(8-nov) added nemo2gadget and snapgridsmooth (JCL)
(7-nov) added gadget2nemo and a toy program mkcosmo for some cosmology trials.
(26-sep) glnemo now also can display velocity vectors in 3D
(31-aug) fixed various installation problems, added optional png support for pgplot, fixed some SINGLEPREC issues
(15-aug) resurrected hackcode3 and quadcode (and various other prototype fixes)
(10-aug) slightly overhauled directory structure for the public version of falcON [use: cvs update -dP to update ]. We are still shaking down some installation issues with this.
(6-aug) Various small updates cleaned up from the GH-2006 summerschool - they will trickle in over the coming week.

3.2.4: 5 August 2006 (a.k.a. the Puebla release)

This was the release the day after the GH-2006 summerschool ended.

(5-aug) general cleanup for the Puebla release
(1-aug) (upd) gyrfalcON cleaned up during GH2006 school.
(12-jul) (upd) new release of falcON: new bodyfunc (an improved version of NEMO's bodytrans) + improved manipulator support [gcc 4.1.1 initially failed, now ok]
(6-jul) (upd) fixed gadget interfaces
(22-may) (new) CGS integrator released (Trenti)
(26-apr) (upd) glnemo (V0.90) - animations, octree engine (Lambert)
(15-apr) various fixes for installing under macosx 10.4 (the story hasn't ended yet)
(31-mar) gyrfalcON updated to 3.0.5. utils/ split from falcON/. Now also works with gcc 4.1.0 (Dehnen)
(8-mar) (upd) configure now derived from an .ac file, not .in, adding UNFIO_HDR_SIZE into config.h
(28-feb) (new/upd) runbody4 interface to runing Nbody4 (or Brut4), and adapted unfio to deal with the new gfortran unformatted I/O format.
(19-feb) (upd) mdarray data are now in sequential memory. Several programs (mkconfig,mktt72,mkpolytrope) were updated so they can use dynamic memory.
(7-feb) (upd) snapgrid (V5.1) new option integrate=t to deal with particles that represent a density.
(9-dec) (upd) stropen() will now read files that look like URL's
(5-dec) (upd) pgplot install able to select compiler dialects and detect x86_64
(21-nov) (upd) tablsqfit and tabnllsqfit added fit=gauss1d and gauss2d
(16-nov) (upd) various small bugfixes submitted for the falcON tools (Dehnen)
(15-nov) (upd) snapshell (V2.1) rewritten and different more clear user interface.
(7-nov) glnemo now has sample manipulator included to watch a gyrfalcON "live". You will need to use cvs update -d for this update.
(2-nov) new programs: ccdmerge and snapplot3
(27-oct) gyrfalcON has been updated to 3.0.4, the manual page has also been updated. Major new feature is the use of accname= instead of potname=, an enhanced version of potential. Run-time manipulator files (manipname=) are also introduced in this version.
(17-sep) The layout library can now use GNU readline to read commands. Testing in tabplot using the readline=t keyword. Also added support in configure to force readline off.
(20-aug) [new] gadget.install: script to aid and simplify in installing various versions of Gadget2. In addition, gadget I/O will get optional support for hdf5 format.

3.2.3: 1 August 2005 (a.k.a. Amsterdam release)

This was the (modest 5c) nbody-school release.

(1-aug) Resurrected dtos. and stod to keep the conversion of data between nemo and starlab going.
(11-jul) some more patches for Fedora Core 4
(11-dec) glnemo, fairly major update, also works with gcc4.
(4-jul) (new) ccdmos simple mosaicer
(2-jun) new routines put_data_blocked and get_data_blocked allowing blocked (sequential) I/O. These routines work much like their random counterparts, put_data_ran and get_data_ran except I/O must occur sequentially. No doubt some bugshaking will be needed.
(13-may) (new) tabextinct and tabint.
(13-may) various cleanups for 64 bit based machines, made GSL a little easier to be enabled.
(12-may) (new) tabfilter and tabtrend
(9-may) (new/upd) tabdate date/time conversions in tables.
(18-apr) (new) mkgalorbit computes galactic orbits from observational quantities
(11-apr) added nmodel= to mkplummer (mostly for benchmarking)
(28-mar) some additional fixes for cygwin, but still too far from an automated install. See benchmarks for some standard NEMO benchmarks. Basic conclusion: don't use cygwin for any serious work,particularly the I/O is nearly a factor of 10 worse, and C++ code runs about 2-4 slower. C and Fortran much closer.
(25-mar) (new) snappot computes potentials/forces from analytical potentials
(16-mar) yapp's pl_matrix() now has a blankvalue argument, for better ccdplot results
(15-mar) cleaned up a number of files so NEMO compiles with g++
(14-mar) many revisions to io_nemo (JCL)
(7-feb) (new) potrot computes an (angular averaged) rotation curve from a potential.
(2-feb) moment's have been updated to handle moving moments
(5-jan-2005) (new) ccdgen to create simple 2D objects in an image
(26-dec) added simplified HDF install at boostrap

3.2.2: 25 December 2004 (a.k.a. the Christmas release)

(24-dec) fixed a few Mac-specific problem (out3 vs. OUT3.. grrrr) and added valgrind support to the testsuite
(17-dec) (new) hdfwedge cloned off hdfgrid to create more flexible pictures of wedges.
(15-dec) hdfgrid can now grid in a pic=t (Particle in Cell) mode
(10-dec) Fixed a number of HDF access problems in tsd, sdsfits and hdfgrid when dealing with rank=3 files.
(3-dec) (new) glnemo, a Qt based interactive visualization program (Lambert). here is an example of a movie created with this program. In addition, mknemo now supports non-standard installations via scripts in src/scripts/mknemo.d
(23-nov) fitsccd now has axistype= keyword to force new-style images
(15-nov) fixed weighting error in nllsqfit if errors not the same
(13-nov) added a set of example scripts to the web page
(18-oct) implemented the "cvsid" string in programs. help=I will print the CVS ID, whereas help=V the human created version
(19-sep) all C potential's now support potential_float and potential_double
(6-sep) LocalMakedefs file in any directory will be optionally used by NEMO's Makefiles
(25-aug) acceleration: improvements (Dehnen)
(19-aug) maxsizes.h : provide a default in $NEMO/inc/max. For those using CVS updates, you have to manuallly copy it:
```
	cp $NEMO/inc/max/maxsizes.h $NEMOLIB 
```
else the installation will automagically take care of this.
(19-aug) perorb : fixed allocation and added new last= keyword
(29-jul) cfitsio.install and test_a_new_nemo_cvs now simplify using CFITSIO
(15-jul) acceleration: a new more general version of potential (Walter Dehnen)
(14-jul) some important fixes for -DSINGLE_PREC users [you should recompile the library and relink all/most executables]
(1-jul) fits8to16 (new): convert 8bit to 16bit image.
(24-jun) the MacOSX notes have been updated with some more unsderstanding of the pitfalls.
(13-jun) rotcurshape: can now optionally return the full fit in the residual map instead.
(26-may) various improvements in rotcurshape (and rotcur) underway.
(21-may) gyrfalcON: new update with new internal manual pages. The version number hasn't changed, still reported to be 2.1
(13-may) the user interface (getparam.c) now supports help=c, which will report CPU usage for each NEMO program on debug level 0.
(12-may) gyrfalcON has been updated to 2.1, which came with a few new programs, e.g. lagrange_radii, density_centre, mkdehnen, mkking, mkplum.
(8-may) infrastructure changes to images, to deal with an astronomical WCS. in particular, snapgrid can now grid most common astronomical coordinate systems, see also wcs for more background info.
(25-apr) added NEMO I/O to treecode1, this plot summarizes the performance and force accuracy for a N=4000 plummer sphere.
(24-apr) few minor fixes for gnu compiler 3.4.0
(23-apr) new timers functions available for intel/amd
(22-apr) tkrun more flexible in reading "#>" directives
(15-apr) gyrfalcON has been updated to 2.0.1, the manual page has also been updated.
(12-apr) User and Programmers guide: slowly etching away more old lies
(12-apr) activated a new toplevel 'make bins', which should make as many programs as are possible (depending on correct settings of your makedefs file). Good excersize of your CPU and HD. Instead of the usual 100 or so binaries with the testsuite method, this one gives you nearly 200! The manual page tree contains 270 entries, so still some more additions to do.

3.2.1: 11 April 2004 (a.k.a. the Easter release)

(11-apr) User and Programmers guide: first 4 chapters now updated.
(11-apr) removed YAPPLIB from the environment into makedefs
(11-apr) yanc, the predecessor of falcON, has been removed from the tree and CVS.
(11-apr) A small patch is still needed for MacOSX 10.3 users, read item 3 at the bottom of this link (almost perfect)
(11-apr) CVS (or any other) updates should read upgrade details
(11-apr) merged from the branch NemoHost3 the following changes are made in the build system, as well as a few fixes.
- A change in the directory structure in the sense that $NEMOHOST subdirectories in $NEMO/{bin,lib,obj} are now no longer supported; instead files are directly placed in the {bin,lib,obj} directories. The environment variables $NEMOBIN, $NEMOLIB, $NEMOOBJ are accordingly modified, otherwise it has very little impact on a running system. The $NEMO/host tree has disappeared, and is replaced with the $NEMO/opt tree.
- added more programs to the testsuite
- fixed two bugs in bodytrans: when more than one new bodytrans function was given in the same program, and fixed bodytrans usage in pipes again. (bodytrans is now also removing the /tmp/bt* files)
- fixed PGPLOT interface for multi-panel programs (this may not work well if PGPLOT_FOREGROUND/BACKGROUND are used)
- MacOSX (10.3) support (as much as the filesystem with its filecasing problem supports)

3.2.0: --never released as such --

This releas was just a placeholder while the NemoHost3 branch was being tested.

(11-apr) merge with 3.2.1 occured, this version thus never released
(24-mar) magalie updated to 1.2
(23-mar) snapaddbh (new)
few other small things, lost from the records due to an editor glitch

3.1.2: 23 March 2004 (a.k.a. the Strasbourg release)

This version was released on CD for the participants of the N-body school in Strasbourg.

(23-mar) magalie (NEW: wrapper program) (Christian Boily)
(18-mar) nemo_io updated to handle eps (particle softening)
(15-mar) added GalactICS from Kuijken-Dubinski
(15-mar) orbint: variable timesteps
(13-mar) various improvements to nbody0, mostly due to the problems around the figure8 orbit
(5-mar) mkkd95 (NEW: wrapper program to the Kuijken-Dubinski disk generation tools)
(24-feb) fixed nbody00 for integrations of orbits like figure8
(20-feb) newton0 (NEW ; an old program from 1987 finally cleaned up and added to NEMO)
(19-feb) dtos: added an option to select what to output (experimental)
(18-feb) command(3EMO): now reads command files
(17-feb) directcode (NEW): classic direct N-body code
(15-feb) better support for compilers like intel80 for fortran-c interfaces (still some problems left)
(14-feb) configure/makedefs: pretty important subtle bug forgetting -fpic compiling for shared objects
(13-feb) tab2xml: new program (actually writes VOTables, not arbitrary xml files)
(11-feb) fixed bootstrap pgplot install problem, as well as in AAA_SOURCE_ME
(10-feb) some more SPH support in snapshots
(7-feb) flowcode V0.6: implemented diffusion for orbits
(1-jan) get_line would terminate on blank line: many programs changed for new get_line interface
(29-dec) snaptrim: allow extraction of something nearest to requested time
(28-dec) intel compiler 8.0 causes link problems with Fortran/C/Nemo
(27-dec) mknemo updated to 2.0, it now detects that there is a new version, useful if you like to use the new -l and -u flags , run mknemo -u; cp $NEMO/src/scripts/mknemo $NEMOBIN and never need to update this command again.

3.1.1: 27 December 2003

(27-dec) allow 64 open files (NEMO_MAXFD)
(24-dec) command (NEW), optionally using readline, to embed simple interactive commands
(16-dec) ccdppm (NEW), scripted up to create all color lookup tables (lut)
(20-nov) mkflowdisk (NEW), flowcode, vrtm51 (NEW): various M51 project related improvements
(25-oct) plplot support revived in prepartion for their 5.2.2 release (--without-double needed for configure)
(16-oct) splitstream.cc (new, via falcON environment; WD)
(15-oct) dtos, stod: made it work for starlab4 again
(9-oct) snapplot(v) : support for the new style (pos/vel) snapshots
(21-sep) nemo_file_lines: changed meaning of deflen, which means most programs that used nmax= should get a negative count argument.
(19-sep) a number of new programs in src/tutor that can be more easily used as template/teaching tool
(10-aug) kstwo: indexing bug, tabcmp also needs recompilation
(30-jul) snapfit: various fixes and improvements going on...
(29-jul) changed SIGN -> SNG since num.rec. uses it (NEMO's compilation thus failed)
(28-jul) gyrfalcON: important version 1.6.1 for gcc 3.3 (Walter Dehnen)
(15-jul) snapfit: new program (imported from 1992 code base!)
(14-jul) minor updates on io_nemo (JCL)

3.1.0: 12 July 2003

(12-jul) various minor changes to aid a full install on Mac OS X10.2 (to be checked for 10.1) (for loadobj the dlcompat library needs to be installed first)
(12-jul) getparam: added "--" processing
(7-may) tabhist: handle multiple columns (using mdarray)
(6-may) mdarray: a useful set of multi-dimensional array alloc/free routines
(23-apr) ellipse: new program to toy with ellipses and orbits
(4-apr) tabnllsqfit: fixed bug in using dycol=, added dypow=
(5-mar) potcode is being hacked on, it can now analytically integrate epicycle orbits
(2-mar) wcs tools added in src/image/wcs
(1-mar) ccdmath: allow fiddle with WCS; new online manual pages using rman
(1-mar) orbits now have a slot to store errors in the I.O.M.
(17-feb) snapgalview: new program, and added some pre-defined bodytrans for glat/glon/mul/mub
(15-feb) Testfile supports nemo.coverage analysis, if enabled
(13-feb) nlllsqfit: added an 'arm3' (simultaneaous m=1,3 fitting) (Shetty)
(12-feb) rotcur/rotcurshape: fixed serious bug in residual map computation
(6-feb) ccdvel: modulated orbits allowed (mexp=, phexp=)
(4-feb) patch for io_nemo to make it compile on some newer versions of linux with gcc3 (JCL)
(10-jan) renamed some little used macros (SGN,RNG,RND) to longer names
(7-jan) some work on making the important parts compilable under g++ (read: get GalPot to work for gcc3 for e.g. potlist)

3.0.16: 7 January 2003

(4-jan) falcON added (this deprecates YancNemo), with gyrfalcON as the integrator [Walter Dehnen] -- needs gcc3 !!
(2-jan) LFS (files > 2GB) is now enabled by default in configure
(2-jan-2003) many small fixes for gcc3 and -DSINGLEPREC (bodytrans prototypes)
(5-dec-2002) mktt72: create Toomre & Toomre 72 disks
(4-dec) getparam: better handling of long commandline arguments

3.0.15: 3 December 2002

(2-dec) NEMO tutorial (recepies) for mass99 users
(2-dec) added vogl ($NEMO/usr/vogl) to NEMO's CVS release
(26-nov) snapidl: new program to pipe data (binary) into IDL.
(23-nov) tabclip: new program to clip tabular data
(4-oct) tabtranspose.c: new program

3.0.14: 14 September 2002

(14-sep) snapsplit,snaptrim can output multiple files
(10-sep) many changes to rotcur/rotcurshape
(5-aug) $NEMOBIN/nemo.pl made by configure for perl users
(2-aug) tabplot: multi xcol= allowed for pairwise plotting
(21-jul) rotcurshape: new program to fit velocity fields using shaped rotation curves
(19-jul) JC-Lambert's new io_nemo added , adds a fortran I/O layer to the nbody I/O routines. If you incrementally upgrade to this version, you need to remove an old io_nemo module from the library:
```
	ar d $NEMOLIB/libnemo.a toolsnemo.o
```
(17-jul) nr_nllsqfit: NumRec interface to nllsqfit, and changed tabnllsqfit to make use of this and dynamic object modules for arbitrary function fitting
(17-jul) nemo-fied numrec1 now converted to nemofied numrec2
(12-jul) tabnllsqfit: new program, using nllsqfit, modeled after tablsqfit

3.0.13: 1 July 2002

(28-jun) rotcur: read tables in addition to images
(14-jun) tsf: now writing out integer in decimal (not octal) format
(13-jun) YancNemo: new version 1.2 (Walter Dehnen)
(12-jun) file permission patches for bodytans (Jean-Charles Lambert), HP-UX fix
(7-jun) GalPot.cc: new Galaxy Potential (Walter Dehnen)
(23-may) filesecret.c: support for >2GB files
(24-apr) getparam.c: adding in support for new system keyword outkeys=
(13-feb) stropen.c: fixed mktemp -> mkstemp for security
(20-jan) getparam.c: allow putparam to create new indexed files
(19-jan) getparam.c: fix reading indexed keywords from keyword file

3.0.12: 17 Jan 2002

(17-jan) get_snap reads ZENO (Position/Velocity) snapshots
(16-jan) fixed various indexing problems in getparam.c
(29-dec) rotcur0.c added as potential descriptor
(19-dec) C++ style exception handling for C (exception.c, in development)
(19-dec) example cfitsio interfaces, fitsio.h is now fitsio_nemo.h and fitsio.c will optionally contain the CFITSIO wrapper interface
(dec) getparam.c improved the indexed keyword interfaces

3.0.11: 26 Nov 2001

(w.i.p) example cfitsio interfaces
(13-oct) fix failing bitpix 64 configure check support on solaris
(9-oct) add tidaldisk and vertdisk potentials (Walter Dehnen)
(10-oct) add dens and eps support as bodytrans variables (left out in 3.0.10)
(15-nov) new program snapshell to analyze bodyvariables on shells
(16-nov) new yanc (1.0.15)
(25-nov) improved access for indexed parameters (getparam)
(25-nov) added AAA_SOURCE_ME for manybody.org

3.0.10: 8 October 2001 (linux only quicky release)

(9-oct) support for Density and Eps in snapshot I/O (the quicky... see also 3.0.11 for better support)
(7-oct) flushing filestruct I/O when writing at the top level
(29-sep) some support for experimental FITS BITPIX=64 integers for images and tables (this stuff breaks on solaris, unless you run autoconf again)
basic stuff - no dynamic object loaded yet - works under darwin (mac OS X), except needed to manually change
```
	#FLIBS =  -lcrt1.o -lg2c -lcc_dynamic -lSystem
	FLIBS =   -lg2c -lcc_dynamic -lSystem
```
in the $NEMOLIB/makedefs file.

3.0.9: 23 September 2001

indexed keywords for getparam (wo/ minmatch)
potlist can auto-detect _double and _float potentials
new yanc (1.0.12) with support for external (nemo) potentials

3.0.8: 13 September 2001

adding for site related MAX* sizes (upgraders need to re-run "make dirs" and "config.status")
adding support for GSL (GNU Scientific Library): xrandom, tabspline, tabpoly
creating shadow/symlink directories under $NEMO/host to allow hosting alien autoconf package with
```
	configure --prefix=$NEMO/host/$NEMOHOST
```
probably need a new name for this, or else we could abandon the current scheme and put bin,lib,obj,inc->include, sort of how AIPS++ does it. That's for release 3.1 perhaps. What about other common names, like man and share?
cfitsio configurations fixed
file_size -> nemo_file_size (for cfitsio)
new yanc (1.0.8) with mkking; also fixed up redundant inc/tree and src/tree directories
better prototypes for potential proc's to help C++ users (and new _float/_double routines in potential(3NEMO))

3.0.7: 4 September 2001

tablsqfit: added errors to ellips axis ratio
fitsio.c: fixed serious error in reading fits headers that have N*36+1 cards, affects fitsccd. Very old bug.
yanc/YancNemo: version 1.0.7 merged. ok.
yanc/YancNemo: version 1.0.8 merged, ok now.
various

3.0.6: 18 July 2001

many syntax fixes for gcc3.0 to make it compile for g++. Speedup is a mere 5% for hackcode1's (nbody=1024/tstop=10)
simplified running the testsuite with a new -b flag
SGI installation was broken
various added macros and functions to aid integrating some types of ZENO code
added Barnes improved treecode (V1.4) and integrated it in NEMO, albeit still with his original I/O (atos/stoa can convert the data)
added YANC (version 1.0.5) into NEMO/usr/dehnen/yanc as follows:
```
	cvs import -d -m "YANC 1.0.5" nemo/usr/dehnen/yanc vendor start
```
documentation on YancNemo is already present in YancNemo(1)
JC-Lambert's io_nemo added , only C version for now, fortran in next release.
configure now handles single/double/mixed precision modes, and a few other bugs removed from the configure setup

3.0.5: 7 June 2001

proper support for integrating alien C++ code (e.g. YANC -> YancNemo)
uNEMO finalized: only provides an I/O library, no user interface
Added 'demo1' from the Mexico GH2001 workshop ($NEMO/demo/demo1)
Fixed nemo_start if run from a non-writeable directory
configure improvements for YAPP

3.0.3: 28 May 2001

Identified the smallest subset of routines needed to get acccess to basic NEMO I/O without user interface needs - also cleaned getparam.c to give running code with the user defined main() instead of nemo_main(). See $NEMO/src/uNEMO
some support for Dehnen's YANC
various small fixes made in Mexico

3.0.2: 16 May 2001

A rushy release, since i'm travelling for two weeks, and also working on NEMO.

fix some minor configure problems
fixed short string space for long filenames (bodytrans.c)
finally testsuite is passing the -DSINGLEPREC test
added Kawaii's nbody and ftc code
added flowcode to solve dr/dt=v type problems, potcode now also compiles

3.0.1: (5 April 2001)

This release is claimed to configure and compile clean on linux (at least redhat 6.2). It also works on most Solaris and SGI, but may need some tweaking of the $NEMOLIB/makedefs and $NEMO/NEMORC.local files.

3.0.0: (1 April 2001)

The new release series for NEMO V3 is imminent. Although the code is compatible, some details in shared object loaded have now been changed, and are not backwards compatible. You should probably not overlay the new NEMO on top of an old directory structure (although nothing has changed to that). CVS is now also offered to those who like to participate in the development.

source code control now under CVS
installation now via autoconf's configure script
dynamic object loading (loadobj) is now using .so files, and not compatible with the .o files (although files could simply be renamed) [we're not using libtool (yet)].
numerous documentation changes
numerous code cleanup and enhancements
a number of new N-body codes have been added

2.5.6: --never released as such--

this is a active list of things we know are broken and/or being worked on that may make it into the next release, as well as some proposed things that may make it into some next version:

conversion to CVS, all of NEMO is now until CVS control
solaris configure broken again
snapgrid: can produce infinity with using small VZ smoothing ?
(fixed) hdfgrid: parsing error
(upd) tabcmp: added KS2 test to table comparison
(upd) xyzview: new option to view an orbit at the same time
(fixed) configure does not seem to handle MESA correctly
(proposed new) add indexed keywords to getparam.c
(proposed new) shared library support using libtool
(proposed new) a new system keyword to export named parameters (export=)

2.5.5: 23 August 2000

this is a list of things we know are broken and/or being worked on that may make it into the next release:

(fix) tipsy conversion routines for byte-swapping
(fix) fitsccd,fitsio bug fixed for raw cubes (planes were ok)
(fix) stropen: scratch files now should not exist yet when opened
(fix) solaris configure is a bit broken for fortran
(fix) testsuite fails for nbody1, funcc due to directory changes
(fix) copy issues for scfm at install time
(fix) -DSINGLEPREC is probably broken at the makefile level, it should now be easier to add to $NEMOBIN/cc or the $NEMOLIB/makedefs
(fix) tabplot documentation/workover
(upd) snapplot, tabfits

2.5.4: 28 January 2000

new programs: tabcols
many small fixes to: tabdms,tabhist, tabplot, tabview
fixed small-deltat bug in nbody0
more autoconf/configure features (e.g. HDF)
more generic Fortran-to-C interface using F77_FUNC macros (using autoconf)
small user interface (getparam) extensions, added cntparam()
yapp_pgplot now has pl_cursor

2.5.3: 6 January 2000

bug fix getparam.c, added NEMO/src/image/hdf/cmhog (mainly hdfgrid)
better integrated autoconf/configure support
documentation (although the manual is still not updated)
A linux binary release is now available through astromake, but this version may be somewhat older than the latest source code.

2.5.1: 18 December 1999

(18-dec) fixed up some installation issues for Solaris

2.5.0: 16 December 1999

(16-dec) Major new release with many many small changes. The most important change is probably usage of standard configure script as the first stage during installation. Also, we are now (kind of) using CVS for source code management. During the next few weeks I expect to have a few more small updates that irons out installations on a variety of machines.
(16-dec) merged all the never-released 2.4.5 updates, and went straight to an official 2.5.0 release.
(12-jan) random snap I/O implemented with promising performance benchmarks.
(21-feb) all makefile's now use -O compile flags, as opposed to a debugged -g. On some archictures significant improvements can be achieved with tailored FLAGS, e.g. -fast on some Sparc's.
(11-feb) nbody0 had an emberassing array index bug, and although in a higher order term correction, will cause substantial errors on long integrations. Various minor improvements to installation, including automated pgplot installation.

2.4.4: 28 January 1998

(28-jan) Long awaiting. Added tkrun, Aarseth's triple star integrator and finalized this release. Fixed some export files for scfm. gamma functions for tablsqfit, version ID checking (nemo.version)
(25-jul) fits.c now checks for new ("Year-2000") style DATExxxx header items.
(7-jul) added scfm, the self consistent field method N-body integrator. Thanks to Lars Hernquist.
(1-jul) the next release (sometime later this month) will be 2.5.0, not 2.4.5 because of a change in directory structure on the "aarseth/nbody*" series. You can safely overlay the old tree, but be sure to delete aarseth/nbody2 before you do this.
(27-jun) new manpages (authors.5, ommod.5), working on king(1NEMO) and runbody2(1NEMO)

2.4.3: 26 June 1997

(26-jun) 2.4.3 Released: also contains nbody2, which may get a few small modifications. New: catpgps (to catenate PGPLOT ps files), runbody2 (a frontend for nbody2), added Dehnen's potential, snapmass with IMF.
accidentally a core dump and two executables were added to yapp's source code directory.
(6-jun) Added Sellwood's 3D cartesian Nbody code. (src/nbody/sellwood/code1)
(1-jun) Fixed another typo in the initial conditions of the IAU 25 body problem. The energy is now -0.2 within the expected margin of error. This should really be the last fix to this benchmark dataset.

2.4.2: 27 May 1997

(27-may) Version 2.4.2 released, fixed some 64bit processor portability problems. remaining (tabmath) problem on SGI's fixed, rvsnap and snaprv completed. Number of man pages updated and upgraded.
Version 2.4.1 installed on a DecAlpha 500, running Digital UNIX V4.0B (Rev. 564), the fastest machine we have NEMO currently running on. The standard hackcode1 bench runs in 0.0048 sec, twice the speed on the Onyx-2. Since we didn't have a fortran compiler, yapp_gl with VOGL (GL emulator) was used (fixed few minor bugs)

2.4.1: 13 April 1997

Version 2.4.1 released. Continuing upgrades and bug fixes in the 2.4 release:
- shared library support now for both linux and solaris ("sun5")
- nemo-starlab I/O support (src/nbody/io/starlab)

2.4.0: 1 April 1997

Version 2.4.0 released, which is the one that comes after 2.3.8. It will contain two major changes, and a number of small changes and additions:
- code should now run in -DSINGLEPREC mode. Some problem areas remain, which are planned to be solved in upcoming patches:
  - use of vectmath in potential's is not good, since potentials are hardcoded in double precision, and vectmath uses 'real' and the precision flag.
  - function pointers cannot always be generic proc's, they need to be typedef'd by function if the arguments are float's (some compilers may pass unspecified arguments as double)
- various directories now have a Testfile, which are gnu compatible makefile's used to run a testsuite of programs through nemo. You can look at our most recent testsuite.log and compare with your version (if we have it online).
- fortran (src/kernel/fortran) support now compiled in the library by default. Portability not really looked into.
- xyz programs (snapxyz, xyzview) for 3D viewing and movies formally added. You either need to compile the vogl library, or on an SGI you can use the native GL library (much nicer and faster).

16 February 1997

SGI IRIX 6.2 has some problems with loadobj, some routines don't compile, and it cannot handle more than 5 expressions in e.g. snapprint. For one, I probably have to break down and make libnemo a shared library. this has been solved in 2.4.0
Linux slackware3.1 (and possibly some other distributions too) may need /lib/gnumalloc.so to be linked in. There is a problem with the malloc/free in the standard libc (e.g. 5.3.12 is broken). You can look at my $NEMOBIN/cc for linux (ELF) how i've solved this.
(TBA) Sellwood's 3D cartesian grid code is going to be incoorporated in NEMO. Thanks Jerry!

22 October 1996

(23-oct) Some linux (slackware 3.1) releases may need a patch/fix due to a libdl bug
(22-oct) Release 2.3.7 with a fix to make linux (default is now ELF based, linux-aout present but not officially supported) work out of the box. sun5 (solaris) and sgi (irix 5.x) are also supported out of the box; all remaining OS may need some patch work.
(22-oct) Old tar and patch files have been deleted. Only the current version (2.3.7) is present.
(13-sep) User interface bug fixed for telnet sessions under solaris 2.5 [blank environment variable was present] (getparam.c)

30 August 1996

(30-aug) Release 2.3.6 after this summers work in Amsterdam with full support to import and export starlab datafiles. (loadobj.c)

13 July 1996

(12-jul) linux ELF scripts (cc, ldso) were broken
(29-jun) fix ldso script for SGI
(28-jun) Release 2.3.5 formally released,
The hosttype command is now fully based on the uname command the host is supposed to have.
Linux default is now ELF based, although some support for a.out based systems remains.
Various minor bugfixes and updates to the manual, man pages and a variety of programs.

4 April 1996

Support for the new ULTRA-Sparcs underway. So far only a fix to the hosttype script was needed (Solaris 2.5)
Linux ELF support, solved by patching scripts ldso, cc. PGPLOT 5.0.3 from sunsite works fine. Needs dummy nemomain.o(MAIN__) to fool f2c.

28 January 1996

I'm playing with a new design NEMO homepage; be careful, it is using some HTML3 features that may only be accessible through e.g. Netscape2
The Linux for Astronomy CD-ROM is out, and contains a copy of NEMO.

15 December 1995

For release 2.3.4:

made the dynamic object loader work for OSF1 V3.2 (dec alpha) (should also work for SGI and LINUX, but the next release will make this formal)
new command 'ldso' that aids dynamic object loading more portably accross architectures.
various minor bug fixed and features added, e.g.
- mkop73: fixed bug on solaris
- snaprotate: allowed more than 3 rotations
- snapscale: reporting
- ccdmom: new program to take moments on a cube (simple version)
- fitstiff
- ccdfits, fitsccd: resolved some WCS issued around the CTYPE's

5 October 1995

The so-called portable random number generator from the Numerical Recepies library that NEMO uses is perhaps portable, but goes out of bounds a bit too often. Fixed by letting xrandom() spin until it's in range. This is part of release 2.3.3
loadobjDL.c will be patched to work with SGI IRIX 5.x (IRIX 4.x is hopeless, I've given up on that now). IRIX 6.x to be confirmed. Not in release 2.3.3 yet.

22 July 1995

I've added a known bugs list, of which eventually most will go into this whatsnew list.
NEMO Release 2.3 is out!
- Undoubtedly there will be small patch (incremental tar) files coming out. Such new versions will be versioned with patchlevels, e.g. nemo_2.3.11.tar.gz will be patchlevel 11, and would require you to load 11 upgrades, or get the new tarfile.
  - 5-jul-95 (2.3.1) bootstrap file upgraded, small manual and man pages were changed, versioning through the user interface, nemoinp, tablsqfit
  - 22-jul-95 (2.3.2) bug fix in snapslit, and Makefile support for automated updating the anon.ftp area.
  - 5-oct-95 (2.3.3) xrandom/ran3 bug fixed, added snapplotv and ccdsharp
- If your site uses Solaris *with* a LD_LIBRARY_PATH environment variable, check with your system mananger, or contact me if you have trouble.
- I'm still working on the manual.

19 April 1995

Release 2.3 is about to come out! From now on a release will have a version consisting of major (2) and minor (3) version id, with patchlevels.
26-may-95: too much time spent in HDF and FITSIO routines for some of my own work. In addition something with -xcg92 compilation broke on our solaris installation, and that needs to be tracked down too. And some other fires.. Soooo, Release 2.3 won't be out until mid june.

10 January 1995

LINUX version is running, including loadobj . Since PGPLOT has been ported to LINUX, there is nothing holding official LINUX support back now. I expect this new release (version 2.3) to be in mid february.
Although we have always had support for a single precision NEMO, ANSI compiling with more strict rules has set me back considerably. Until *everything* relevant has been properly prototyped, compiling with -DSINGLEPREC is not recommended. I hope to fix this soon, but not in release V2.3
Added some hdf utilities: tsd , fitssds , sdsfits , and snaphdf .

16 November 1994

We are now running NCSA's new httpd (V1.3) server. This has a new powerful server include mechanism, and lots of other goodies. There may be some problems with the current info you are reading, since some files had to be converted. We are running this server with the option that (server include) parsing is only done when the execute bit of a file is turned on. It seems that that the new netscape WWW browser has some problems with this, but NCSA Mosaic doesn't.

8 October 1994

An Nbody Data Interchange Format discussion group has been set up. This includes an email exploder ( nbody@astro.umd.edu ) and various archives of data in different formats and accompanying software.
An X-windows YAPP (NEMO's graphics interface) has been installed. This software was written by Patrick Frisch, who has written a number of programs within the NEMO environment. ( pfrisch@walhall.uni-sw.gwdg.de ) You can pick up the patch file (a compressed tarfile) from our anonymous ftp, and overload it on your current NEMO. Be aware, it also contains a NEW NEMORC startup file.
The ``public domain'' PLPLOT package (obtainable from dino.ph.utexas.edu ) can now be used with a new YAPP device driver yapp_plplot.c.

7 August 1994

An experimental reference listing on N-body and-related methodologies .
The manual pages have now been converted using a patched up roff2html converter, and has links into the SunOS manual pages, where appropriate. You can start at the seconds half of the man1 index page.
The gaussfit program, for arbitrary least squares fitting and robust estimation, has been added with a NEMO interface.
snaprect has been extended with more options to determine the shape of a potential, in addition it can determine the axial ratio profile.

12 June 1994

A bootstrap loader is supplied that takes away virtually all the work in installing NEMO.
A QUESTIONNAIRE is available which will be used to design and prototype an interchange and archive format for particle simulation data. Please look at it, load it to your local disk ( Options/Load To Local Disk in Xmosaic), fill in the blanks, and send me your copy by e-mail.
Added Quinn/Balcells conversion of their xvp format in the form of a sample xvpsnap program. A few small mostly cosmetic (less verbosities, smaller nmax) were needed to relevant I/O subroutines.

10 May 1994

Couchman' cosmological N-body simulator is available in $NEMO/usr/couchman. NEMO wrappers for his programs prun and pstart have been written. In addition, this resulted in an experimential I/O library with access to fortran unformatted binary files from C routines. See the manual pages for unfio(3) and memio(3) .

25 February 1994

The TIPSY package has been installed; the source code is intended to reside in $NEMO/usr/tipsy. Documentation is still limited, but being worked on.
A new version of Starlab has been installed. We upgraded from 1.0 to 1.1.1. We now follow the convention of directory names, so $NEMO/usr/starlab/1.1.1 will be the value of $STARLABPATH.

24 January 1994

With Solaris 2.3 (SUN OS 5.3) now running on a local UMD test machine, most of NEMO is now running. This includes a smooth running loadobj package, as well as a yapp in X (this one thanks to Patrick Frisch ). NOTE: the export tar files have not been updated yet, as much more proper testing is needed.

Back to: NEMO Home page , the What's Up , or the What's Down page.

By: teuben@astro.umd.edu