1. xgooey etc. root_gui/root_framework/exweb/exam_reg xgooey, root_gui executable, ROOT File browser File mode –Local disk - ROOT File –Remote rootd server - Net File –Remote HTTP server - Web File DAQ mode –Creator - Start/Stop Examine, execute macros on remote Examine, Pause/Resume, Abort, Status (fwk “report package_name”) –Observer - “Read-Only” access to Examine –Thread for server commincations –Select Examine Browse File/Examine Root directory structure D0 Workshop 2002 Joel Snow Langston University

2. xgooey etc. root_gui/root_framework/exweb/exam_reg Select/Display 1/2/3-dim histograms and ntuples –Update, Cycle, Step1, Compare, Print, Save, Reset* Message Log Options Window - set histogram display options Preferences Window - set Examine, display, time out parameters –xgooeyrc initialization file http://www-d0.fnal.gov/d0dist/dist/root_gui/v02-03-01/doc/ for more info (README, release notes) Will Add local Root macro execution capabilities to xgooey in File mode. D0 Workshop 2002 Joel Snow Langston University

3. xgooey etc. root_gui/root_framework/exweb/exam_reg root_framework - Root histogram server built on D0 framework –Serves GUI client (xgooey) and CGI client (exweb) –Thread for client communications –Register histograms with server Remote mode - started by xgooey with server –Execute dynamically loaded Root macros sent from Creator xgooey Server mode - started from command line with server Local mode - started from command line without server http://www-d0.fnal.gov/d0dist/dist/root_framework/v02-03-00/doc/ for more info (README, HowTo’s, release notes, example Examine) D0 Workshop 2002 Joel Snow Langston University

4. xgooey etc. root_gui/root_framework/exweb/exam_reg exweb - CGI client of root_framework histogram server Provides web access to dynamically generated histograms served by root_framework Examine. Choose Examine to attach Lists available histograms, select for display in web browser Auto update capability Requires JavaScript enabled browser for some features and X virtual frame buffer driver running on web server http://www-d0.fnal.gov/d0dist/dist/exweb/v01-01-03/README.html for more info access at: http://www-d0online.fnal.gov/www/examine/examine.html http://www-d0ol.fnal.gov/www/examine/examine.html D0 Workshop 2002 Joel Snow Langston University

5. xgooey etc. root_gui/root_framework/exweb/exam_reg exam_reg executable exreg provides light-weight multi- threaded server functioning as an Examine registry Operates with xgooey, root_framework, and exweb Provides directory of running root_framework based Examines in server or remote modes to GUI and CGI clients. Clients choose which Examine to attach to (in Observer mode) from list provided by registry. Examines transparently “ping” registry with id info Registry maintains database of ping info to supply clients. Host: d0ol20, Port: 52340 http://www-d0.fnal.gov/d0dist/dist/exam_reg/v01-00-04/README.html for more info D0 Workshop 2002 Joel Snow Langston University