TotalView Users Guide - CI Wiki

PARCEL: The number of bytes required to hold the shortest instruction for
the target architecture.
PARENT PROCESS: A process that calls the fork() function to spawn other
processes (usually called child processes).
PARMACS LIBRARY: A message-passing library for creating distributed programs
that was developed by the German National Research Centre for
Computer Science.
PARTIALLY QUALIFIED (SYMBOL): A symbol name that includes only some of
the levels of source code organization (for example, file name and procedure,
but not executable). This is permitted as long as the resulting name
can be associated unambiguously with a single entity.
PATCHING: Inserting code in a breakpoint that is executed immediately preceding
the breakpoint's line. The patch can contain a GOTO command to
branch around incorrect code.
PC: An abbreviation for Program Counter.
PID: Depending on the context, this is either the process ID or the program
ID. In most cases, this is the process ID.
POI: The process of interest. This is the process that TotalView uses when it
is trying to determine what to step, stop, and so on.
/PROC: An interface that allows debuggers and other programs to control or
obtain information from running processes. ptrace also does this, but /proc
is more general.
PROCESS: An executable that is loaded into memory and is running (or
capable of running).
PROCESS GROUP: A group of processes associated with a multi-process program.
A process group includes program control groups and share groups.
PROCESS/THREAD IDENTIFIER: A unique integer ID associated with a particular
process and thread.
PROCESS OF INTEREST: The primary process that TotalView uses when it is
trying to determine what to step, stop, and so on.
PROGRAM CONTROL GROUP: A group of processes that includes the parent
process and all related processes. A program control group includes children
that were forked (processes that share the same source code as the
parent), and children that were forked with a subsequent call to the
execve() function (processes that don’t share the same source code as the
parent). Contrast this with share group on page 407.
PROGRAM EVENT: A program occurrence that is being monitored by
TotalView or the CLI, such as a breakpoint.
PROGRAM STATE: A higher-level view of the machine state, where
addresses, instructions, registers, and such are interpreted in terms of
source program variables and statements.
P/T (PROCESS/THREAD) SET: The set of threads drawn from all threads in all
processes of the target program.
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