Parallel Page

The preferences on this page tell TotalView that it should dbfork. It also indicates what will happen when your program goes parallel.

Enable use of dbfork

When set, TotalView catches the fork(), vfork(), and exexcve() system calls if your executable is linked with the dbfork library. This is discussed in Chapter 8 of the TotalView Reference Guide.

When a job goes parallel or calls exec()

The buttons in this area have the following meaning:

Stop the group

Stop the control group immediately after the processes are created.

Run the group

Allows all newly created processes in the control group to run freely.

Ask what to do

If set, TotalView asks if it should start the created processes.

When a job goes parallel

The buttons in this area have the following meaning:

Attach to all

TotalView automatically attaches to all processes when they begin executing.

Attach to none

TotalView will not attach to any created process when it begins executing.

Ask what to do

If set, TotalView opens the same dialog box that it displays when you select Group > Attach Subsets command. Using this dialog box, you tell TotalView to which processes it should attach. Note that TotalView does not display this dialog box when you set the preference. Instead, this preference tells TotalView that it should display the dialog box when it is about to created processes.