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File No. S360-33
Form C28-6543-3 OS

2.4 APR REC'O




Systems Reference Library



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,1
IBM System/360 Operating System
Sort/Merge


Program Number 360S-SM-023

This publication contains specifications
for the IBM System/360 Operating System
Sort/Merge program u including control
statement preparation, program operation,
I/O device assignment, and timing esti-
mates. The program has generalized sorting
and merging capabilities that can be tai-
lored to the needs of particular installa-
tions and applications.




J
PREFACE

.
This publication is a guide for users of The following publications, that are
the system/360 Operating Systero Sort/Merge referred to throughout this text, also
program. It contains a general description contain pertinent information:
of the program and specific information
about control statement formats, program
operation, user-written routines, and effi- IBM System/360 Operating System: Control
cient use of the program. A description of Program Services, Form C28-6541
program-generated messages and timing esti-
mates for over 5,000 sorting applications
are also included. IBM System/360 Operating System: Data
Management, Form C28-6537
The reader should have a thorough under-
standing of the material in the publica- IBM System/360 Operating System: Job
tions IBM System/360 Operating system: Control Language, Form C28-6539
Introduction, Form C28-6534, and IBM
System/360 Operating System: Concepts and IBM System/360 Operating System: Linkage
Facilities, Form C28-6535. Editor, Form C28-6538
A working knowledge of general sorting IBM System/360 Operating System: Storage
and merging techniques is also assumed. Estimates, Form C28-6551
General information about sorting and merg-
ing is contained in the IBM publication IBM System/360 Operating System: System
Sorting Techniques, Form C20-1639. Generation, Form C28-6554




This publication has been revised to support the Release #10 version of
the Sort/Merge program. Therefo~e, the information contained should not
be used until that version is available.
In addition, this publication includes preliminary timings to enable the
user to estimate Sort/Merge performance for applications using the IBM
2314 Direct-Access Storage Facility.




Fourth Edition (February 1967)
This publication is a major revision of Form C28-6543-2 and obsoletes it
and prior editions. In addition tp incorporating information released
in Technical Newsletter N28-2153, this revision includes a new appendix
containing job control language examples and sort/merge cataloged
procedures~ support for the IBM 2301 Drum Storage Drive is also
included, as well as information on designing user-written routines that
do not require link editing" a new formula for calculating direct-access
intermediate storage requirements, and timing information for the IBM
2301 Drum Storage Drive and the IBM 2314 Direct-Access Storage Facility.

Specifications contained herein are subject to change from time to time.
Any such change will be reported in subsequent revisions or Technical
Newsletters.

This publication was prepared for production using an IBM computer to
~pdate the text and to control the page and line format. Page
lmpressions for photo-offset printing were obtained from an IBM 1403
Printer using a special print chain.
Requests for copies of IBM publications should be made to your IBM
representative or to the IBM branch office serving your locality.
A form is provided at the back of this publication for reader's
comments. If the form has been removed, comments may be addressed to
IBM Corporation, Programming Systems Publications, Department 058,
PO Box 390, Poughkeepsie, N. Y. 12602