TotalView Users Guide - CI Wiki

Figure 29: Step 3: Creating a
Process using exec()
Creating Groups
Step 3 The first process uses the exec() function to create a second process. (See
Figure 29.)
� Control group: The group is unchanged.
� Share group: TotalView creates a second share group with the process
created by the exec() function as a member. TotalView removes this process
from the first share group.
� Workers group: Both threads are in the workers group.
� Lockstep group: There are no lockstep groups because the threads are
running.
Step 4 The first process hits a break point.
� Control group: The group is unchanged.
� Share group: The groups are unchanged.
� Workers group: The group is unchanged.
� Lockstep group: TotalView creates a lockstep group whose member is
the thread of the current process. (In this example, each thread is its
own lockstep group.)
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