vovshowconnection

Show connection between two nodes in the trace.


vovshowconnection: Usage Message
  
  DESCRIPTION:
    Show connection between two nodes in the trace.
  
  USAGE:
    % vovshowconnection \[option\] -from NODESPEC -to NODESPEC
    
    where NODESPEC is either a VovId or the name of a file.
  
  OPTIONS:
    -l            -- longer format without label field size limit
    -ll           -- full   format without any field size limits
    -O  <format>  -- choose output format. For reference:
                     default = "@LEVEL:4@ @NODETYPE:6@ @ID@ @LABEL:70@"
                     long    = "@LEVEL:3@ @NODETYPE:6@ @ID@ @LABEL@"
                     longer  = "@LEVEL@ @NODETYPE@ @ID@ @LABEL@"
  
  EXAMPLES:
    % vovshowconnection -from 00123456 -to 00223344
    % vovshowconnection -ll -from aa -to zzz
    % vovshowconnection -O "@LEVEL@ @ID@ @NAME@" -from aa -to zzz

Comments

The command works by using the fast, powerful, set operations in FlowTracer to find the down-cone of the -from node, and the up-cone of the -to node, and then finding their intersection.

The command has two mandatory parameters, the 'from' nodespec and the 'to' nodespec.

-from  Specify the nodespec of the 'from' node
-to    Specify the nodespec of the 'to' node

A node specification, or 'nodespec' for short, is either the VovID of a place (file) or a transition (job), or the name of a file in the flow graph.

There are two options to control the output format, and one to get usage information.

-h   Show brief usage information
-l   longer format without label field size limit
-ll  full format without any field size limits