OXFORD UNIVERSITY COMPUTING LABORATORY

ANNUAL REPORT 1963-4

*Computing Service*With the Mercury machine scheduled to close down (probable date 15 March 1965), it is pertinent to summarize here its contribution to university research during the period 16 March 1959 to 31 July 1964. The facts, measured in hours of computing, time, are given in the following table.

Mar 1959 to Jul 1960 Aug 1960 to Jul 1961 Aug 1961 to Jul 1962 Aug 1962 to Jul 1963 Aug 1963 to Jul 1964 Totals Clarendon

649

430

1,372

1,655

1,400

5,506

Chem. Cryst.

622

650

983

1,192

1,055

4,502

Other Depts

367

530

946

1,142

2,006

4,991

O.U.C.L.

896

710

1,000

602

852

4,060

Prog. Testing

353

460

583

578

511

2,485

Other Univs.

108

90

279

496

250

1,223

Firms

737

670

492

514

653

3,066

Miscellaneous

88

60

33

29

26

236

Maintenance

891

760

894

822

793

4,160

Faults

420

190

297

402

347

1,656

*Totals**5,131**4,550**6,879**7,432**7,893**31,885*During this period the machine earned about £250,000 from external users, enough to pay for all the maintenance, to repay £15,000 to the University Grants Committee, and to provide a balance of £75,000 at 31 July 1964. With the new £150,000 grant from the University Grants Committee this was exactly sufficient for the purchase of the new KDF9.

The new machine uses different programming languages, and the recent programming courses have changed from 'Autocode' to the international language 'ALGOL'. The laboratory staff has also started converting many of its library programmes into ALGOL and, as a temporary measure, the KDF9 version of Autocode.

*Staff, research fellows, and research students*Mr. J. D. P. Donnelly was appointed Senior Research Officer in January 1964. Mr. H. Wright held the I.C.T. Fellowship during the year, and worked on computer applications in forestry problems. Mr. D. B. Taylor took his D.Phil., with work on the numerical solution of hyperbolic equations, and is now working at the Argonne National Laboratory, U.S.A. Mr. C. T. H. Baker successfully submitted a D.Phil. thesis on integral equations, and is now working at the University of California, Berkeley.

Three more junior assistants were appointed for the operation of KDF9.

*Lectures and Summer School*The Director gave 28 lectures for Mathematical Moderations and 8 for Engineering Finals, Mr. D. F. Mayers 40 lectures for Mathematics Finals, Mr. J. S. Rollett 19 lectures for Engineering Finals, Mr. D. C. Handscomb 12 lectures on the theory and practice of approximation' in the Mathematics General list, Mr. H. Wright 4 lectures on 'programmes for forestry management', and Dr. C. E. Phelps organized and lectured for one Autocode and two ALGOL courses, with a total attendance at the latter of 140

The 1963 Summer School, on 'Advances in programming and non-numerical analysis', attracted an attendance of about sixty. So far the laboratory has done no work in this field and the lecturers were drawn from the Universities of Cambridge, Edinburgh, London, and Manchester, the Royal Radar Establishment at Malvern; and a consulting firm in London. The proceedings will be published under the editorship of the Director.

*Other activities*The Director lectured on numerical analysis at Argonne National Laboratory, at an international symposium on Arch Dams at Southampton University, at Leicester, Brunel, Sheffield, and the National Physical Laboratory on a variety of topics, and attended a Matrix Symposium at Gatlinburg, Tennessee. He was elected to the chairmanship of the ATLAS Users' Committee at the N.I.R.N.S., to a committee of the Meteorological Office, to the Mathematics Advisory Committee at Bristol College of Science and Technology, to Government Grant Board A (Mathematics) of the Royal Society, and to a Schedule A Professorship in Numerical Analysis at Oxford.

Mr. J. S. Rollett attended the Sixth international Congress of the Union of Crystallography in Rome and presented a paper on 'Least squares refinement with chemical and mechanical restraints'. He attended meetings of the X-ray analysis group, on 'Protein structure analysis' at the Royal Aeronautical Society and on 'Structural studies complementary to X-ray analysis' at the University of Keele, and of the British Computer Society at Edinburgh, and also lectured on various topics at Birmingham and Oxford.

Mr. D. F. Mayers visited the Aeronautical Research Laboratory, Ohio, in connexion with his work on atomic wave functions, acts as consultant to C.E.I.R. Ltd. of London. and lectured at the University of Newcastle.

Dr. C. E. Phelps represents the laboratory at the KDF9 Users' meetings, and has lectured and demonstrated the machine to various parties representing schools, the British Architects Association, RAF Officers, &c.

Dr. D. C. Handscomb attends the KDF9 Users' meetings on statistical topics, and lectured on Monte Carlo methods at the Royal College of Advanced Technology, Salford.

*Publications*C. T. H. BAKER, L. FOX, D. F. MAYERS, and K. WRIGHT. ‘Numerical solution of Fredholm integral equations.’

*Computer J*. 7, 141-8 (1964).D. W. J. CRUICKSHANK, B. C. WEBSTER. and D. F. MAYERS. ‘The d-orbits of sulphur.’

*J. Chem. Phys.*40, 3732 (1964).L. FOX.

*An Introduction to Numerical Linear Algebra*. Clarendon Press, Oxford (1964).D. C. HANDSCOMB. ‘A Monte Carlo method applied to the Heisenberg ferromagnet.’

*Proc. Camb. Phil. Soc.*60. 119-122 (1964).— ‘A rigorous lower bound for the efficiency of a Monte Carlo method.’

*Proc. Camb. Phil. Soc*. 60, 357-8 (1964).— and J. M. HAMMERSLEY.

*Monte Carlo Methods.*Methuen, London (1964).D. F. MAYERS. ‘The deferred approach to the limit in ordinary differential equations.’

*Computer J*. 7, 54 (1964).

*Committee*

Dr. D. ter Haar (Chairman). Dr. J. M. Linnett, Professor G. E. Blackman, Professor C. A. Coulson. Dr. N. T. J. Bailey, Mr. E. F. Jackson, L. Fox (Secretary).