In general, you do not need to completely specify an arena. TotalView provides values for any missing elements. TotalView either uses built-in default values or obtains them from the current focus. The following explains how TotalView fills in missing pieces:
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If you set the focus to a list, there is no longer a default arena. This means that you must explicitly name a width and a PID. You can, however, omit the TID. (If you omit the TID, TotalView defaults to the less-than symbol <.)
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You can type a PID without typing a TID. If you omit the TID, TotalView uses the default <, where < indicates the lowest numbered worker thread in the process. If, however, the arena explicitly names a thread group, < means the lowest numbered member of the thread group.
TotalView does not use the TID from the current focus, since the TID is a process-relative value.
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A dot before or after the number specifies a process or a thread. For example, 1. is clearly a PID, while .7 is clearly a TID.
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If you type a number without typing a dot, the CLI most often interprets the number as being a PID.
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If you enter a width and don’t specify a PID or TID, TotalView uses the PID and TID from the current focus.
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If you use a letter as a group specifier, TotalView obtains the rest of the arena specifier from the default focus.
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You can use a group ID or tag followed by a /. TotalView obtains the rest of the arena from the default focus.
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