git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@10846 f3b2605a-c512-4ea7-a41b-209d697bcdaa

doc/fix_efield.txt

@@ -17,7 +17,9 @@ efield = style name of this fix command :l
 ex,ey,ez = E-field component values (electric field units) :l
 any of ex,ey,ez can be a variable (see below) :l
 zero or more keyword/value pairs may be appended to args :l
-keyword = {energy} :l
+keyword = {region} or {energy} :l
+  {region} value = region-ID
+    region-ID = ID of region atoms must be in to have added force
   {energy} value = v_name
     v_name = variable with name that calculates the potential energy of each atom in the added E-field :pre
 :ule
@@ -57,6 +59,10 @@ variables but can also include per-atom values, such as atom
 coordinates.  Thus it is easy to specify a spatially-dependent E-field
 with optional time-dependence as well.
 
+If the {region} keyword is used, the atom must also be in the
+specified geometric "region"_region.html in order to have force added
+to it.
+
 :line 
 
 Adding a force or torque to atoms implies a change in their potential
@@ -102,6 +108,8 @@ due to the electric field were a spring-like F = kx, then the energy
 formula should be E = -0.5kx^2.  If you don't do this correctly, the
 minimization will not converge properly.
 
+:line 
+
 [Restart, fix_modify, output, run start/stop, minimize info:]
 
 No information about this fix is written to "binary restart

examples/USER/sph/water_collapse/water_collapse.lmp

@@ -1,4 +1,4 @@
-processors         4 1 1 # manually assign processors to spatial regions
+processors         * 1 1 # manually assign processors to spatial regions
 atom_style         meso
 dimension          2
 newton             on
@@ -39,7 +39,7 @@ fix                integrate_bc_fix bc meso/stationary
 dump               dump_id all custom 100 dump.lammpstrj id type xs ys zs c_rho_peratom c_e_peratom fx fy
 dump_modify        dump_id first yes
 thermo             10
-thermo_style       custom step ke c_esph v_etot f_gfix press f_dtfix[1] f_dtfix
+thermo_style       custom step ke c_esph v_etot f_gfix press time f_dtfix
 thermo_modify      norm no
 
 neigh_modify       every 5 delay 0 check no