When you debug a PVM application, TotalView becomes a PVM tasker so it can establish a debugging context for your session. You can run a TotalView PVM debugging session for a user and for an architecture; that is, different users can’t interfere with each other on the same computer or same computer architecture.
One user can start TotalView to debug the same PVM application on different computer architectures. However, a single user can’t have multiple instances of TotalView debugging the same PVM session on a single computer architecture.