Add SelectType description, expand bluegene.conf descriptions.

etc/bluegene.conf.example

@@ -35,7 +35,6 @@ BridgeAPIVerbose=0
 #
 # Nodes: The base partitions (midplanes) in the bglblock using XYZ coordinates
 # Type:  Connection type "mesh" or "torus", default is "torus"
-# Use:   Node use "virtual" or "coprocessor", by default both are created
 # 
 # NOTE: A bglblock is implicitly created containing all resources on the system
 # NOTE: All Nodes defined here must also be defined in the slurm.conf file
@@ -72,4 +71,4 @@ Nodes=bgl[222x333]
 Nodes=bgl[400x733]
 
 # volume = 8x4x4 = 128
-# Nodes=bgl[000x733]   Implicitly created 
+# Nodes=bgl[000x733]   Full-system bglblock, implicitly created 

etc/slurm.conf.example

@@ -145,7 +145,7 @@
 #
 # o Define a scheduler.
 #
-# "SchedulerType"	 : the type of scheduler.
+# "SchedulerType"	 : the type of scheduler. Orders pending jobs.
 #	"sched/builtin"	 : the default, SLURM's built-in FIFO scheduler.
 #	"sched/backfill" : FIFO scheduling with backfill.
 #	"sched/hold"     : hold all new jobs if "/etc/slurm.hold" exists, 
@@ -175,11 +175,23 @@
 
 
 #
-# o Define the job completion logging mechanism to be used
+# "SelectType"			: node selection logic for scheduling.
+#	"select/bluegene"	: the default on BlueGene systems, aware of
+#				  system topology, manages bglblocks, etc.
+#	"select/linear"		: the default on non-BlueGene systems,
+#				  no topology awareness, oriented toward
+#				  allocating nodes to jobs rather than
+#				  resources within a node (e.g. CPUs)
 #
-# "jobcomp/none"    : no job logging, the default
-# "jobcomp/filetxt" : log job record to a text file
-# "jobcomp/script"  : execute an arbitrary script
+# SelectType=select/linear
+
+
+#
+# "JobCompType"			:  Define the job completion logging
+#				   mechanism to be used
+#	"jobcomp/none"		: no job logging, the default
+#	"jobcomp/filetxt"	: log job record to a text file
+#	"jobcomp/script"	: execute an arbitrary script
 #
 # JobCompType=jobcomp/filetxt