Last Modified 23/09/98  

E-830 Memorandum of Understanding and Work Plan for
University of Oxford and the 
Offline Computing Upgrade Project


I. Introduction and Purpose of this Document

This Memorandum of Understanding covers activities necessary to design, commission, and operate the Run II Offline Computing and Software. This document contains a description of contributions to the E-830 Offline Computing project to be provided by University of Oxford. This memorandum summarizes an arrangement for work allocations which is currently satisfactory to the parties signing this document. It is recognized and anticipated that changing circumstances of the evolving research program will necessitate revisions, and the parties agree to negotiate amendments to this Memorandum as the need arises. 

II. General Considerations

A. The Run II Offline System and Software for E-830 are collaboration-wide issues. The scope of the upgrade is described in the Run II Offline Project Plan and Memorandum of Understanding. Significant changes in the scope of the upgrade require the recommendation of the Offline Project Managers and must be ratified by the CDF Executive Board. Responsibility for execution of the upgrade resides with the CDF Offline Project Managers and the CDF Spokesmen.

B. Unless a specific arrangement has been otherwise negotiated, each institution will be responsible for maintaining the code and computing infrastructure supplied by them. Each institution will further insure that a manageable fallback position exists so that data-taking, data production, and analysis can continue in the event of component failure.

III. General Objectives

The complete list of objectives for the Offline project are detailed in the Run II Offline full MOU. The detailed objectives specific to the work of the University of Oxford are:

1. Reconstruction and simulation algorithms for the silicon vertex detector.

2. Fast, efficient Level 3 trigger algorithms, based on the standard offline code, but modified as necessary to optimize performance at L3.

3. Studies and validation of the performance of the L3 algorithms, and development of online monitors and other software required for efficient oversight of the code performance throughout the data taking period.

4. Evolution of the L3 trigger for maximum physics performance over the period of Run II.

IV. Management and Organization

The management of the L3 reconstruction algorithms is shared between the Online and Offline Groups. Objectives III.1 and III.2 are the responsibility of the Offline group, III.3 and III.4 are shared interest of the Online, the Offline, and the CDF Trigger and Data Set working group.

The Run II Offline, Online, L3, and TDSWG groups meet weekly at Fermilab, and the Oxford will be periodically requested to report on progress and status of this project at these meetings.

This document describes the responsibilities of Oxford University. The Oxford contact persons are Todd Huffman and Armin Reichold.

The Run II Offline Manager is Marjorie Shapiro. The Run II Online Project Leader is Jim Patrick, and the L3 leaders are Kevin McFarland and Gerry Bauer. These managers have authority over the work outlined below, and make the final sign-off that responsibilities have been faithfully discharged.

V. Responsibilities

The Oxford group will be responsible for the complete suite of issues associated with silicon reconstruction at Level 3, reporting to both the Offline and L3 management. Elements of this work include, but are not limited to:

* Benchmark and improve speed performance of the silicon tracking.

* Implement and manage regional reconstruction in the silicon tracking.

* Implement and manage programs to verify track quality for i.p. based triggers

* Incorporate into the L3 silicon reconstruction other specialized concepts related to the use and needs of the SVT trigger

* Implement and manage programs to verify in a global way other triggers based on silicon tracks at L3.

* Develop monitors and other software required for efficient oversight of the code performance throughout the data taking period.

* Interface to the Physics Groups as required by the above.

* Make apropriate modifications to the CDF simulation to support the above tasks.

* Supply a computer for L3 code validation and L3 code distribution.

VI. Deliverables, Timeline, and Long Term Maintenance

The responsibilities above will require the creation and delivery of code on an agreed upon timescale, including, but not limited to the following items:

12/98 -- Implementation of Profiling Tools in the standard Si code, \& and distribution & maintenance of tools through Run II
          -- Implementation of wedge/layer/barrel based regional clustering

1/99 -- Implementation of framework in the Run II Silicon Simulation for
        -- Track/Min Bias embedding
        -- Noise simulation with adjustable parameters

This work is the design of an open platform or framework which will allow users to design and include min bias and noise models as desired.
3/99 -- Implementation of wedge/layer/barrel-based regional reconstruction Si code

6/99 -- Implementation of code to manage regional reconstruction, including SVT interface and multi-pass regional reconstruction

12/99 -- Delivery of programs which will run online to verify efficiency of Si reconstruction/cuts in Level-3. These programs will be designed to "plug-in" to the generic online consumer framework to be delivered by the MIT, Rochester, and Online groups.

4/00 -- Full responsibility for the continued development of the L3 silicon reconstruction as the CDF trigger evolves over the course of Run II, to incorporate new triggers, to improve sensitivity and purity, and to accomodate increases in Tevatron luminosity.

4/00 -- Delivery of manpower during the data taking to monitor L3 silicon performance, address problems arising, and contribute to daily operations as appropriate.

All parties agree that the operation and maintenance of this code is an institutional responsibility of Oxford University as long as it is a member of the CDF Collaboration, independent of personnel changes at Oxford.

VII. Personnel

The University of Oxford plans to make available the following personnel to accomplish these tasks:   Personnel Table

VII. E-830 Memorandum of Understanding and Work Plan for University of Oxford and the Offline Computing Upgrade Project

The CDF Collaboration and the University of Oxford agree to the commitments and responsibilities as outlined above.

n.b. At time of this signing, we understand this agreement is contingent on Oxford's receipt of support from UK funding sources
 
 

___________________________________                 _____________________
Group Leader from University of Oxford                   date
 
 

___________________________________                 _____________________
Offline Project Leader                                                 date
 
 

___________________________________                 _____________________
L3 Project Leader(s)                                                    date
 
 

__________________________________                    ______________________
CDF Spokesman                                                            date
 
 

__________________________________                     ______________________
CDF Spokesman                                                             date