[ofa-general] opensm config

[John Parhizgari]

I do not know if you have changed this since opensm 3.1.11, but the 
default behavior for "opensm -c" is to create the opensm.opts with 
program defaults, unfortunately if it runs in master mode it will also 
simultaneously change all the current SM settings to these program 
defaults at this time; this behavior is awkward since most will 
understand from the man page -c is ONLY supposed to create the config 
file -- not create and load in program defaults into the subnet.  At the 
least make it clear in the manual that the config file will be created 
using program defaults, not the current settings of the SM, and these 
settings will be loaded in at this time if you use -c (to make sure the 
user still has a copy of what their SM settings were)

It might be beneficial for it to be able to get the current SM settings 
and use those to create the .opts file (for those that aren't using 
OpenSM now).

I think the default behavior should really be that unless the user 
specifies to load in the configuration file opensm.opts file either in 
the opensm.conf or on the command line it shouldn't modify any of the SM 
settings, since they may inadvertently mess with the current SM settings 
if the cluster is up and running.