Merge pull request #473 from akohlmey/compress-for-reaxc-fixes

compressed output via gzip for some ReaxFF fixes

doc/src/fix_reax_bonds.txt

@@ -36,6 +36,10 @@ please see the "fix reaxc/c/species"_fix_reaxc_species.html command.
 
 The format of the output file should be self-explanatory.
 
+If the filename ends with ".gz", the output file is written in gzipped
+format.  A gzipped dump file will be about 3x smaller than the text
+version, but will also take longer to write.
+
 :line
 
 [Restart, fix_modify, output, run start/stop, minimize info:]
@@ -85,6 +89,9 @@ USER-REAXC package.  It is only enabled if LAMMPS was built with that
 package.  See the "Making LAMMPS"_Section_start.html#start_3 section
 for more info.
 
+To write gzipped bond files, you must compile LAMMPS with the
+-DLAMMPS_GZIP option.
+
 [Related commands:]
 
 "pair_style reax"_pair_reax.html, "pair_style

doc/src/fix_reaxc_species.txt

@@ -52,6 +52,10 @@ number of molecules of each species.  In this context, "species" means
 a unique molecule.  The chemical formula of each species is given in
 the first line.
 
+If the filename ends with ".gz", the output file is written in gzipped
+format.  A gzipped dump file will be about 3x smaller than the text version,
+but will also take longer to write.
+
 Optional keyword {cutoff} can be assigned to change the minimum
 bond-order values used in identifying chemical bonds between pairs of
 atoms.  Bond-order cutoffs should be carefully chosen, as bond-order
@@ -164,6 +168,9 @@ USER-REAXC package.  It is only enabled if LAMMPS was built with that
 package.  See the "Making LAMMPS"_Section_start.html#start_3 section
 for more info.
 
+To write gzipped species files, you must compile LAMMPS with the
+-DLAMMPS_GZIP option.
+
 It should be possible to extend it to other reactive pair_styles (such as
 "rebo"_pair_airebo.html, "airebo"_pair_airebo.html,
 "comb"_pair_comb.html, and "bop"_pair_bop.html), but this has not yet been done.