Common Blocks
For each common block defined in the scope of a subroutine or function, NextGen TotalView for HPC creates an entry in that function’s common block list. The names of common block members have function scope, not global scope. If you select the function in the Call Stack view, the common blocks and their variables appear in the VAR drawer. From there, of course, you can move those variables to the Data view to obtain more information.
Figure 59illustrates the handling of common blocks.