This document describes why HW/SW synergy is important to get the maximum benefit of the latest hardware and describes keeping current with the latest compiler version as the way of doing that. The document recommends tips and techniques of performing hotspot analysis and to make the migration effort containable, recommends upgrading the compiler levels for the few most performance critical sections of application code, instead of entire application.   Document Authors: Kathy Walsh and Priyal H Shah. COBOL Applications Techniques_v1.pdf... [More]

Message: IWZ037I The flow of control in program %1 proceeded beyond the last line of the program.  Control returned to the caller of program %1.  The message is issued by the compiler generated code when execution continues beyond the last COBOL source line.  The 'goback' and 'stop run' statements skip over this error message generation and go directly to the return-code setting and return logic.    This helps identify ill-formed batch programs that do not have proper 'goback' and... [More]

The  COBOL for AIX, V5.1.0.3 Fix Pack (October 2017)  is now available at the following links and on  Fix Central : CO B O L  f o r  A I X, V5.1 .0.3  F i x   P a c k  (October  2 017) CO B O L Runtime  f o r  A I X, V5.1 .0.3  F i x   P a c k  (October  2 017) F i x   l i s t   f o r   C O B O L   f o r   A I X Fixed APARs are listed on the 'Fix list' page, along with links to all COBOL for AIX Fix Packs.  Please note that the... [More]

Enterprise COBOL for z/OS, V6.1 and V5.2 documentation are refreshed today, to include the following enhancements and doc fixes:   Enhancements for V5.2 with PTFs installed: In V5.2 with the PTF for APAR PI85868 installed, a n ew VSAMOPENFS option is introduced, which affects the user file status reported from successful VSAM OPEN statements that require verified file integrity check. For details about VSAMOPENFS, see https://www.ibm.com/support/knowledgecenter/SS6SG3_5.2.0/com.ibm.cobol52.ent.doc/PGandLR/ui/upvsamopn.html . In V5.2 with... [More]

Tags:  kc kc_refresh

The IBM Automatic Binary Optimizer for z/OS V1.3 documentation is now available at IBM Knowledge Center: https://www.ibm.com/support/knowledgecenter/en/SSERQD_1.3.0/welcome.html   Highlights in V1.3 documentation updates: Adds ARCH(12) for generating COBOL code that exploits the new IBM z14 server. (See ARCH ) Adds a new tool IBM Run Time Instrumentation Profiler, which helps identify COBOL modules that are good candidates for optimization using the Automatic Binary Optimizer. (See Run Time Instrumentation Profiler )  ... [More]

Tags:  abo abo_doc

The Enterprise COBOL for z/OS, V6.2 documentation is now available at IBM knowledge center: https://www.ibm.com/support/knowledgecenter/en/SS6SG3_6.2.0/welcome.html .   In addition to the books delivered in earlier releases, there are two new books for V6.2: Performance Tuning Guide ( https://www.ibm.com/support/knowledgecenter/en/SS6SG3_6.2.0/kc_gen/master_map-gen5.html ), which identifies key performance benefits and tuning considerations when using COBOL V6.2. Formerly, this is delivered as a PDF-only whitepaper. Starting from V6.2, it... [More]

Tags:  kc cobol-for-zos

IBM Automatic Binary Optimizer for z/OS (ABO) V1.3 is now available. ABO V1.3 optimizes previously compiled COBOL program modules to increase application performance and reduce CPU usage without source recompilation. It performs high-fidelity optimizations and generates code that fully exploits z14, z13 and zEC12 architecture without changing program logic or behavior. Highlights in ABO V1.3 Automatic Binary Optimizer for z/OS V1.3 delivers the following enhancements: Improved performance of already compiled COBOL programs on the z14 server and... [More]

Tags:  abo_release abo

Would you like to receive IBM Z product updates and connect with IBM mainframe experts? Do you look up IBM Z error messages to resolve technical issues? Get the best of both worlds with our new Doc Buddy features. Aggregating content for IBM Z products IBM Doc Buddy V1 enables you to search both online and offline for messages and codes issued from IBM Z products. With over 4000 users, IBM Doc Buddy is one of the most frequently-used mobile apps to help IBM Z customers tackle the technical issues they encounter. We are pleased to announce a new... [More]

The  COBOL for AIX Fix Pack 15 (August 2017 PTF) for 4.1.1  is now available at the following links and on  Fix Central : CO B O L  f o r  A I X  F i x  P a ck   15  (Aug ust  2 017  PTF )  fo r  4. 1 . 1 Fi x   li s t  f o r  C O B OL   f or   A I X Fixed APARs are listed on the 'Fix list' page, along with links to all COBOL for AIX Fix Packs.  Please note that the term 'Fix Pack' is equivalent to 'PTF', and both terms... [More]

The Enterprise COBOL compiler V6.1  and V5/V6 August 2017 Runtime PTFs are now available for order. Here are the details:         COMPILER       UI49694 , UI49695 , UI49696      V5/V6 RUNTIME      COBOL V5/V6 RUNTIME PTFs:        ==> V2R1: UI49628, UI49745        ==> V2R2: UI49627, UI49744      L i s t   o f   A P A R s   f o r   E n t e r p r i s e   C O B... [More]

The Enterprise COBOL compiler Trial V6.1  and V5/V6 July 2017 Runtime PTFs are now available for order. Here are the details:         COMPILER TRIAL      UI48598 , UI48168 , UI48261, UI48169, UI48170 (JAP)      V5/V6 RUNTIME       UI48665(V2R1) also requires LE PTFs UI36963/ UI45481/ UI45482 (JAP)      UI48664(V2R2) also requires LE PTFs UI36961/ UI45479/ UI45480 (JAP)   L i s t   o f   A P A R s   f o r   E n t e r p r i... [More]

The Enterprise COBOL compiler V6.1  and V5/V6 June 2017 Runtime PTFs are now available for order. Here are the details:         COMPILER       UI48286 , UI48287 , UI48288      V5/V6 RUNTIME       UI48165(V2R1) also requires LE PTFs UI36963/ UI45481/ UI45482 (JAP)      UI48164(V2R2) also requires LE PTFs UI36961/ UI45479/ UI45480 (JAP)   L i s t   o f   A P A R s   f o r   E n t e r p r i s e   C O B O L   f... [More]

Enterprise COBOL for z/OS, V6.1 and V5.2 documentation are refreshed today, to include the following enhancements and doc fixes:   Enhancements for V6.1 with PTFs installed: In V6.1 with the PTF for APAR PI71621 installed, The JSON GENERATE statement is redesigned and improved. See https://www.ibm.com/support/knowledgecenter/SS6SG3_6.1.0/com.ibm.cobol61.ent.doc/PGandLR/ref/rlpsjsog.html . In V6.1 with the PTF for APAR PI81838 installed, change the behavior of the NOSTGOPT compiler option - the OPT level is no longer an issue for NOSTGOPT.... [More]

Tags:  kc knowledge_center cobol-for-zos kc_refresh

The Enterprise COBOL compiler V5.1 June 2017 PTFs are now available for order. Here are the details:         COMPILER       UI47785 (HADB510), UI47801 (JADB51H), UI47786 (JADB511), UI47787 (JADB512) L i s t   o f   A P A R s   f o r   E n t e r p r i s e   C O B O L   f o r   z / O S   V 5 .1 June 2 0 17 P T F