Created a new table: virt_simnode_attributes and added a new column

simhost_violation to the reserved table. Details in the migrate file.
Note that virt_simnode_attributes is part of the virtual state and is
being taken care of in libdb.

db/libdb.pm.in

@@ -2642,6 +2642,7 @@ sub TBGetSiteVar($)
 		   "virt_vtypes",
 		   "virt_programs",
 		   "virt_node_desires",
+		   "virt_simnode_attributes",
 		   "nseconfigs",
 		   "eventlist",
 		   "ipsubnets",

sql/database-create.sql

@@ -1131,6 +1131,7 @@ CREATE TABLE reserved (
   rsrv_time timestamp(14) NOT NULL,
   vname varchar(32) default NULL,
   erole enum('node','virthost','delaynode','simhost') NOT NULL default 'node',
+  simhost_violation tinyint(3) unsigned NOT NULL default '0',
   PRIMARY KEY  (node_id),
   UNIQUE KEY vname (pid,eid,vname)
 ) TYPE=MyISAM;
@@ -1613,6 +1614,19 @@ CREATE TABLE virt_routes (
   KEY pid (pid,eid,vname)
 ) TYPE=MyISAM;
 
+--
+-- Table structure for table `virt_simnode_attributes`
+--
+
+CREATE TABLE virt_simnode_attributes (
+  pid varchar(12) NOT NULL default '',
+  eid varchar(32) NOT NULL default '',
+  vname varchar(32) NOT NULL default '',
+  nodeweight smallint(5) unsigned NOT NULL default '1',
+  eventrate int(11) unsigned NOT NULL default '0',
+  KEY pid (pid,eid,vname)
+) TYPE=MyISAM;
+
 --
 -- Table structure for table `virt_trafgens`
 --

sql/database-migrate.txt

@@ -1173,3 +1173,25 @@ last_net_act,last_cpu_act,last_ext_act);
 
        alter table interfaces add vnode_id varchar(32) default NULL;
 
+1.211: Add a new table virt_simnode_attributes that contains the number
+       of slots that a virt_node will occupy on a pnode. This is useful
+       during mapping. The default value is 1. The column eventrate will
+       also be used during mapping. The initial value is 0 since it is not
+       determined during the first swapin. Updates to these columns during
+       an experimental run will persist till the next swapin. Currently,
+       the updates will be done when a simulator (nse) running on a pnode
+       cannot keep up with real-time. In future, it could be done
+       periodically. The reserved table has a new column simhost_violation
+       whose value can be '0' or '1' to indicate that a pnode running nse 
+       cannot keep up with real-time.
+
+       create table virt_simnode_attributes ( \
+       pid varchar(12) NOT NULL default '', \
+       eid varchar(32) NOT NULL default '', \
+       vname varchar(32) NOT NULL default '', \
+       nodeweight smallint(5) unsigned not null default '1', \
+       eventrate int(11) unsigned not null default '0', \
+       KEY pid (pid,eid,vname));
+
+       alter table reserved add simhost_violation tinyint(3) \
+               unsigned not null default '0';