Minor change to EAGLE_ICs/*/run.sh

This updates the run.sh with more useful information and the inclusion of the time-step limiter. I have also attempted to document the parameters, and include downloads for the cooling and yieldtables.

Hopefully this should help people stop seeing the run-time flags as 'magic' and instead actually make them consider what each one does...

examples/EAGLE_ICs/EAGLE_12/run.sh

 #!/bin/bash
 
- # Generate the initial conditions if they are not present.
+# Generate the initial conditions if they are not present.
 if [ ! -e EAGLE_L0012N0188_ICs.hdf5 ]
 then
     echo "Fetching initial conditions for the EAGLE 12Mpc example..."
     ./getIC.sh
 fi
 
-../../swift --cosmology --hydro --self-gravity --stars --black-holes --cooling --star-formation --feedback --fof --threads=16 eagle_12.yml 2>&1 | tee output.log
+# Grab the cooling and yield tables if they are not present.
+if [ ! -e yieldtables ]
+then
+    echo "Fetching EAGLE yield tables..."
+    ../getEagleYieldtable.sh
+fi
+
+if [ ! -e coolingtables ]
+then
+    echo "Fetching EAGLE cooling tables..."
+    ../getEagleCoolingTable.sh
+fi
+
+# The following run-time options are broken down by line as:
+# Basic run-time options
+# Create and run with stars
+# Radiative options - run with cooling and stellar feedback
+# Run with the time-step limiter required to capture feedback
+# Run with black holes - fof is needed for the seeding
+# Threading options - run with threads and pinning (latter not required but improves performance)
+# The corresponding parameter file for this run
+
+../../swift \
+    --cosmology --hydro --self-gravity \
+    --stars --star-formation \
+    --cooling --feedback \
+    --limiter \
+    --black-holes --fof \
+    --threads=16 --pin \
+    eagle_12.yml