Speaker
Martin purschke
Description
The PHENIX DAQ system is managed by a control system responsible for
the configuration and monitoring of the PHENIX detector hardware and
readout software. At its core, the control system, called Runcontrol,
is a process that manages the various components by way of a
distributed architecture using CORBA. The control system, called
Runcontrol, is a set of process that manages virtually all detector
components through a distributed architecture base on CORBA.
A key aspect of the distributed control system, the messaging
system, is the ability to access critical detector state
information, and deliver it to operators and applications of the
control system. The goal of the system is to concentrate all output
messages of the distributed processes, which would normally end up
in log files or on a terminal, in a central place. The messages may
originate from or be received by applications running on any of the
multiple platforms which are in use including Linux, Windows,
Solaris, and VxWorks. Listener applications allow the DAQ operators
to get a comprehensive overview of all messages they are interested
in, and also allows scripts or other programs to take automated
action in response to certain messages.
Messages are formatted to contain information about the source of the
message, the message type, and its severity. Applications written to
provide filtering of messages by the DAQ operators by type, severity
and source will be presented.
We will discuss the mechanism underlying this system, present
examples of the use, and discuss performance and reliability issues.
Primary author
E. desmond
(BROOKHAVEN NATIONAL LAB)
