PGI input slides explicitly mentions extensions related to network configuration, and suggests that other HPC-specific 
extensions may be needed. Each such extension should be appropriately documented.

PGI input slides explicitly mention extensions related to network configuration, and suggests that other HPC-specific 
extensions may be needed. Each such extension should be appropriately documented.

PGI input slides explicitly mention one extension, namely, Network Topology. Clarification is needed whether this is the
 only extension needed, or others also exist

PGI input slides explicitly mention one extension, namely, Network Topology. Clarification is needed whether this is the
 only extension needed, or others also exist. Each such extension should be appropriately documented.