Re: Mainframe REXX (Re: Badmouthing Rexx and ooRexx - again (Re: zOSMF and zOWE for non-mainframers

I think it is horses for courses. Someone once said to me something along the lines of .. If you run it once a day write it in rexx (or Python) If you run it once an hour - write it in Java If you run it once a second write it in C If you run it 1000 times a second - write it in Assembler. It

Z15 EOM

Hi all Anyone know when ibm will issue the withdrawal letter for z15. Anyone planning to upgrade z17? It seems a bit late due to COVID-19? -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to

Re: Full TRAP feature support [was: RE: Re: z/OS 3.1 Announcement US Letter]

On 3/1/2023 4:01 PM, Bernd Oppolzer wrote: Am 01.03.2023 um 19:51 schrieb Martin Trübner: I know of one big z/OS installation that has a debugger in use that uses TRAP (and the author is on IBM-main as well) That's me ... but as I said in the other mail, I am not the author of the

Re: Mainframe REXX (Re: Badmouthing Rexx and ooRexx - again (Re: zOSMF and zOWE for non-mainframers

After struggling with NetRexx, I've found that it could benefit from being as user-friendly as Kotlin or Groovy if the maintainers want to attract more users. On my machine, NetRexx is slower than Python but still respectable. However, both Python and NetRexx are outperformed by highly

Re: Hardware instrumentation presentation

Even better, try John Burg of the 'Washington Systems Center '. He used to have presentations on the TechDoc website and also presented at SHARE. Sent from Outlook for Android From: IBM Mainframe Discussion List on behalf of Lennie

Re: DATASET encryption POC

Lennie Dymoke-Bradshaw kindly wrote: >I think you have switched forums Phil. >This stream started on RACF-L Right you are! Sorry about that. Thanks. -- For IBM-MAIN subscribe / signoff / archive access instructions, send

Re: DATASET encryption POC

I think you have switched forums Phil. This stream started on RACF-L Lennie -Original Message- From: IBM Mainframe Discussion List On Behalf Of Phil Smith III Sent: 01 March 2023 21:48 To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: DATASET encryption POC Eric D Rossman wrote, in part: >Not

Re: Full TRAP feature support [was: RE: Re: z/OS 3.1 Announcement US Letter]

Am 01.03.2023 um 19:51 schrieb Martin Trübner: I know of one big z/OS installation that has a debugger in use that uses TRAP (and the author is on IBM-main as well) That's me ... but as I said in the other mail, I am not the author of the debugger; I am only the maintainer today, and I

Re: Full TRAP feature support [was: RE: Re: z/OS 3.1 Announcement US Letter]

FWIW, some years ago (maybe 2010), I replaced the breakpoint mechanism in a home grown debug tool written by my customer; the breakpoints were implemented by capturing the S0C1 interrupts of hex zero insertions into the load module instead of real opcodes. I now insert TRAP2 instead of hex

Hardware Collection

I'm looking for ancient documentation, like IBM Hardware Collection (Bookreader) I also look for IOCP User Guide for z900. (note: z900, not z/Whatever). Obviously I'm aware of bitsavers, so I'm looking for other material. Any clue? It has very little to do with my job. It is just a hobby. I

Re: z/OS 3.1 Announcement US Letter

Seriously IBM was delivering AC922 or IC922 POWER servers. POWER machines with NVIDIA GPUs for AI. However they stopped. Why? Because they started delivering its own "AI chip", in z CP or POWER CP. Is Intel cheaper? NO. There are plenty of analyses where POWER is economically more effective

Re: DATASET encryption POC

Eric D Rossman wrote, in part: >Not really. Can you give me a reasonable use case where having the >encrypted data would be of ANY use to you? There is nothing to >compare/correlate. Since the data is (maybe compressed) and encrypted, >there is nothing to look at other than the length of a given

Re: CS/CDS instruction

In addition to the obvious instructions Phil mentioned, there is also PLO. I don't have any relevant performance data. -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 From: IBM Mainframe Discussion List [IBM-MAIN@LISTSERV.UA.EDU] on behalf of

Re: CS/CDS instruction

Ituriel do Neto asked: >Is there a similar instruction to CS or CDS, but using 64 bits register ? CSG/CDSG. Look at Principles of Operation. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to

Re: CS/CDS instruction

CSG and CDSG in Pop. Sent from my iPhone > On Mar 1, 2023, at 3:53 PM, Ituriel do Neto > <03427ec2837d-dmarc-requ...@listserv.ua.edu> wrote: > > Hi all, > > Is there a similar instruction to CS or CDS, but using 64 bits register ? > > I have a double word that contains a counter and

CS/CDS instruction

Hi all, Is there a similar instruction to CS or CDS, but using 64 bits register ? I have a double word that contains a counter and using 64 bits instructions would be faster to increment this value than manipulate it with other storage areas and an even-odd pair of 32 bits registers. Thanks in

Re: Hardware instrumentation presentation

I recommend you speak to Martin Packer at IBM. Lennie -Original Message- From: IBM Mainframe Discussion List On Behalf Of Colin Paice Sent: 01 March 2023 18:00 To: IBM-MAIN@LISTSERV.UA.EDU Subject: Hardware instrumentation presentation I've been asked to give a talk on performance to a

Re: Full TRAP feature support [was: RE: Re: z/OS 3.1 Announcement US Letter]

Traditionally, the business case would have been that a debugging facility like this led to increased ability to exploit the platform, thus leading to more usage and more sales. Whether that still applies-whether IBM is interested in that for IBM zSystems-is unclear. With cloud, cloud, and more

Re: SMP/E RECEIVE ORDER server IP address changes

On Wed, 1 Mar 2023 13:09:58 -0600, Paul Gilmartin wrote: >On Wed, 1 Mar 2023 18:24:54 +, Kurt J. Quackenbush wrote: > >>SMP/E RECEIVE ORDER users, take note of the planned IBM order server IP >>address changes on March 23. >>https://www.ibm.com/support/pages/node/6856445 >> >Why should

Re: SMP/E RECEIVE ORDER server IP address changes

Sometimes there are hiccups in the transition due to DNS caching. On Wed, Mar 1, 2023 at 1:10 PM Paul Gilmartin <042bfe9c879d-dmarc-requ...@listserv.ua.edu> wrote: > > On Wed, 1 Mar 2023 18:24:54 +, Kurt J. Quackenbush wrote: > > >SMP/E RECEIVE ORDER users, take note of the planned IBM

Re: SMP/E RECEIVE ORDER server IP address changes

On Wed, 1 Mar 2023 18:24:54 +, Kurt J. Quackenbush wrote: >SMP/E RECEIVE ORDER users, take note of the planned IBM order server IP >address changes on March 23. >https://www.ibm.com/support/pages/node/6856445 > Why should users be concerned with the IP address rather than relying on the

Re: Full TRAP feature support [was: RE: Re: z/OS 3.1 Announcement US Letter]

I did develop a fully featured debugger solely on TRAP for VSE. I did that in 2000 as proof of concept or better to show that TRAP is not there for "year 200o fix up" as pops did say at that time. Originally it was object code only in CICS (just to see that it works)- meanwhile I support

SMP/E RECEIVE ORDER server IP address changes

SMP/E RECEIVE ORDER users, take note of the planned IBM order server IP address changes on March 23. https://www.ibm.com/support/pages/node/6856445 Kurt Quackenbush IBM | z/OS SMP/E and z/OSMF Software Management | ku...@us.ibm.com Chuck Norris never uses CHECK

Re: z/OS 3.1 Announcement US Letter

So a $xxx,xxx mainframe can double the output of a $1500 card? "Make it up in volume"??? Seriously, this is the question I keep coming up against wrt z16 and AI: Why would anyone use expensive Z MIPs to do AI stuff instead of cheap Intel MIPS? On Tue, Feb 28, 2023 at 5:52 PM David Crayford

zFS Setup for zOSMF

I would like to socialize the following structure for use in zOSMF /PPRODSYSHFS.OMVS.DEV1.PRODUCTS -- CYL(5) /PPROD/IBM SYSHFS.OMVS.DEV1.IBM -- CYL(10) /PPROD/BMC SYSHFS.OMVS.DEV1.BMC

Hardware instrumentation presentation

I've been asked to give a talk on performance to a University Computing department. I know the z hardware has in builtin instrumentation which allows you to see where the delays were for a particular instruction. For example this load instruction got data from the L3 cache and it took x nano

Re: Full TRAP feature support [was: RE: Re: z/OS 3.1 Announcement US Letter]

One potential business justification for IBM would be "to sell the hardware that contains this spiffy feature." Isn't that essentially the business justification for *all* new z/OS features? Charles -Original Message- From: IBM Mainframe Discussion List

Re: Mainframe REXX (Re: Badmouthing Rexx and ooRexx - again (Re: zOSMF and zOWE for non-mainframers

On 2/3/23 00:54, René Jansen wrote: maybe I was not clear. it *is* an executable jar with the manifest built into it. Then somebody needs to fix the scripts so it's usable by just setting PATH and using the current working directory. On 1 Mar 2023, at 17:52, David Crayford wrote: On

Re: Mainframe REXX (Re: Badmouthing Rexx and ooRexx - again (Re: zOSMF and zOWE for non-mainframers

so this should work for you: ➜ test git:(master) ✗ cat hello.nrx import java.lang.String say 'hello java' System.getProperty("java.version") loop i=long 0 to 10 hello(i) end loop i=long 0 to 10 hello(java.lang.String(i)) end method hello(j) say "hello" j method

Re: Mainframe REXX (Re: Badmouthing Rexx and ooRexx - again (Re: zOSMF and zOWE for non-mainframers

maybe I was not clear. it *is* an executable jar with the manifest built into it. > On 1 Mar 2023, at 17:52, David Crayford wrote: > > On 2/3/23 00:34, René Jansen wrote: >> Yes, I know. But linking to other code in .class files does. You can run >> NetRexx from the .jar file. This finds all

Re: Mainframe REXX (Re: Badmouthing Rexx and ooRexx - again (Re: zOSMF and zOWE for non-mainframers

On 2/3/23 00:34, René Jansen wrote: Yes, I know. But linking to other code in .class files does. You can run NetRexx from the .jar file. This finds all NetRexx classes. But let’s say you want to use a Java TreeMap, or some crypto algorithm like FPE in your program - it will look on CLASSPATH

Re: Mainframe REXX (Re: Badmouthing Rexx and ooRexx - again (Re: zOSMF and zOWE for non-mainframers

Yes, I know. But linking to other code in .class files does. You can run NetRexx from the .jar file. This finds all NetRexx classes. But let’s say you want to use a Java TreeMap, or some crypto algorithm like FPE in your program - it will look on CLASSPATH for those. > On 1 Mar 2023, at

Re: Full TRAP feature support [was: RE: Re: z/OS 3.1 Announcement US Letter]

<*Sigh*> Yes, I do understand the "business justification/resource allocation" argument/excuse. I deal with similar issues all the time in my employer's business. I hate it, but it is real. IMHO the IBM z/OS development team should never have *needed* a "formal request/requirement" to

Re: Bob Richards

Very sad news.  Some of the best minds who have contributed to this board have left us.  Their loss is always felt. Willie. On Tuesday, February 28, 2023 at 10:15:10 p.m. EST, Rick Troth wrote: friends -- Our colleague Bob Richards passed away early this month (Feb). He has lots of

Re: Mainframe REXX (Re: Badmouthing Rexx and ooRexx - again (Re: zOSMF and zOWE for non-mainframers

On 2/3/23 00:20, René Jansen wrote: Well, it *is* an executable jar. Up to you. Executable Jars don't require setting a CLASSPATH Rene On 1 Mar 2023, at 17:17, David Crayford wrote: Why doesn't it just use an executable jar and use "-jar"?

Re: Mainframe REXX (Re: Badmouthing Rexx and ooRexx - again (Re: zOSMF and zOWE for non-mainframers

Well, it *is* an executable jar. Up to you. > On 1 Mar 2023, at 17:17, David Crayford wrote: > > Why doesn't it just use an executable jar and use "-jar"? -- For IBM-MAIN subscribe / signoff / archive access instructions,

Re: Mainframe REXX (Re: Badmouthing Rexx and ooRexx - again (Re: zOSMF and zOWE for non-mainframers

On 1/3/23 23:54, René Jansen wrote: yes. https://github.com/RexxLA/NetRexx The problem there is, you have lots of other things on CLASSPATH if you do any real development. Also, someone might not use the nrc script at all - I don’t, because I just have an alias nrc=“java

Saw this today

https://www.businesswire.com/news/home/20230301005316/en/Rocket-Software-Acquires-Key-Resources-Inc.-Expanding-Mainframe-Security-Capabilities Rob Schramm -- For IBM-MAIN subscribe / signoff / archive access instructions, send

Takeaway from the mentioned book referring BLAS in context of Python, Java, C ... Re: Mainframe REXX (Re: Badmouthing Rexx and ooRexx - again (Re: zOSMF and zOWE for non-mainframers

On 01.03.2023 15:15, René Jansen wrote: Well yes - that is really apples and oranges, and thanks for proving my point. Numpy leverages hand tuned assembly (BLAS) with hinting for different chip levels and architectures, and the difference with plain python is shown

Re: Mainframe REXX (Re: Badmouthing Rexx and ooRexx - again (Re: zOSMF and zOWE for non-mainframers

yes. https://github.com/RexxLA/NetRexx The problem there is, you have lots of other things on CLASSPATH if you do any real development. Also, someone might not use the nrc script at all - I don’t, because I just have an alias nrc=“java org.netrexx.process.NetRexxC”. Also, when used in

Re: Mainframe REXX (Re: Badmouthing Rexx and ooRexx - again (Re: zOSMF and zOWE for non-mainframers

On 1/3/23 23:39, René Jansen wrote: No, and I use it mostly on macOS and Linux.it is just what Java requires: the NetRexxC.jar file must be on CLASSPATH. It (CLASSPATH) takes files, not directories, you might be successful with a /* but I never do that. I can fix the "nrc" script to set the

Re: Mainframe REXX (Re: Badmouthing Rexx and ooRexx - again (Re: zOSMF and zOWE for non-mainframers

On 1/3/23 23:13, David Crayford wrote: I'm happy to verify on my PC but I found NetRexx to be hopeless on Linux. I've added the /bin to my PATH but it's failing because it can't load the NetRexxC classes even though I have set the /lib directory on my CLASSPATH. Must be optimized for Windows

Re: Mainframe REXX (Re: Badmouthing Rexx and ooRexx - again (Re: zOSMF and zOWE for non-mainframers

No, and I use it mostly on macOS and Linux.it is just what Java requires: the NetRexxC.jar file must be on CLASSPATH. It (CLASSPATH) takes files, not directories, you might be successful with a /* but I never do that. > On 1 Mar 2023, at 16:13, David Crayford wrote: > > I'm happy to verify

Re: Mainframe REXX (Re: Badmouthing Rexx and ooRexx - again (Re: zOSMF and zOWE for non-mainframers

I'm happy to verify on my PC but I found NetRexx to be hopeless on Linux. I've added the /bin to my PATH but it's failing because it can't load the NetRexxC classes even though I have set the /lib directory on my CLASSPATH. Must be optimized for Windows weenies. On 1/3/23 22:35, René Jansen

Re: z/OS 3.1 Announcement US Letter

Peter F wrote: What I would like to know is when z/OS development will finally manage to find the round tuits to actually implement a supported API to actually be able to USE the TRAP (and compare-and-trap) instructions introduced to the architecture so long ago I have forgotten which zArch

Re: Mainframe REXX (Re: Badmouthing Rexx and ooRexx - again (Re: zOSMF and zOWE for non-mainframers

by the way, thanks for that url. It seems my NetRexx smokes your Python with numpy - had not expected that. Note that NetRexx runs on z/OS and is well-maintained. ➜ solution_2 git:(drag-race) ✗ PrimeNetRexx.class joss_NetRexx;8766;5.000282;1;algorithm=base,bits=8,faithful=yes > On 1 Mar 2023,

Re: z/VM DASD Performance Reports

You may want to ask in the VM List:  VM-List   This will probably reject giving you info on how to subscribe. I've forgotten how that works. Meanwhile, what monitoring tools do you have for VM other than the VM DASD reporting? Steve Thompson On 3/1/2023 8:40 AM, Jasi Grewal wrote: Hi, I

Re: Mainframe REXX (Re: Badmouthing Rexx and ooRexx - again (Re: zOSMF and zOWE for non-mainframers

Well yes - that is really apples and oranges, and thanks for proving my point. Numpy leverages hand tuned assembly (BLAS) with hinting for different chip levels and architectures, and the difference with plain python is shown here: https://en.algorithmica.org/hpc/complexity/languages/ You can

z/VM DASD Performance Reports

Hi, I am interested in looking for z/VM DASD Performance reports and wondering if there is anything better than the one which are generated by Perfsvm (FCXnnn) reports. Our zVSE machines are experiencing performance issues and would like to understand DASD peak i/o rates. It is unfortunate we

Re: Mainframe REXX (Re: Badmouthing Rexx and ooRexx - again (Re: zOSMF and zOWE for non-mainframers

Have you heard of Dave Plummer's Primes benchmark project, which is widely regarded as a reliable way to test the speed of programming languages? In this test, ooRexx only managed to complete 13 passes in 5 seconds, while Python with numpy completed 6969 passes, thanks to its ability to

Re: Mainframe REXX (Re: Badmouthing Rexx and ooRexx - again (Re: zOSMF and zOWE for non-mainframers

On 3/1/23 06:15, Rony G. Flatscher wrote: As ooRexx is CMake based this should be quite feasible for such a huge computer company (having so many excellently skilled employees) like IBM. CMake seems to work well for ooRexx. But I counter the idea that it really facilitates building of ooRexx

Re: BookManager

s/was/is  From: IBM Mainframe Discussion List on behalf of Roger Bolan Date: Wednesday, 1 March 2023 at 01:07 To: IBM-MAIN@LISTSERV.UA.EDU Subject: [EXTERNAL] Re: BookManager The B2H tool was BookMaster source to HTML, not BookManager On Tue, Feb 28, 2023, 11:19 AM Colin Paice wrote: >

Re: BookManager

B2H does BookMASTER to HTML, not BookManager to PDF. (And, yes, HTML to PDF is probably trivial for most people.) I use B2H on TSO in Batch almost daily, FWIW. Cheers, Martin From: IBM Mainframe Discussion List on behalf of Colin Paice Date: Tuesday, 28 February 2023 at 18:19 To:

Re: Mainframe REXX (Re: Badmouthing Rexx and ooRexx - again (Re: zOSMF and zOWE for non-mainframers

I agree with Rony. I think your ‘benchmarks’ are a bit synthetic but I understand your goal. I think calling ISPF ‘a relic’ and constantly badgering Rexx does not serve any purpose in front of this audience, most of which see ISPF as something shiny and worthwhile (e.g. to have on OS VS2 r3.8

Re: [EXTERNAL] Re: Silly JES2 question

On Wed, 1 Mar 2023 00:04:16 +0100, Radoslaw Skorupka wrote: >W dniu 28.02.2023 o 15:18, Dave Jousma pisze: >> >> There is no native z/OS support to limit who can use what job classes. We >> had to RYO inserting SAF calls in IEFUJI, IKJEFF10, and ISFUSR.IEFUJI is >> the real gate keeper,

Re: Mainframe REXX (Re: Badmouthing Rexx and ooRexx - again (Re: zOSMF and zOWE for non-mainframers

Is there an active SHARE requirement for ANSI Rexx, ooRexx or both? -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 From: IBM Mainframe Discussion List [IBM-MAIN@LISTSERV.UA.EDU] on behalf of Rony G. Flatscher [rony.flatsc...@wu.ac.at] Sent:

Mainframe REXX (Re: Badmouthing Rexx and ooRexx - again (Re: zOSMF and zOWE for non-mainframers

On 28.02.2023 20:55, David Crayford wrote: I respectfully express my opinion without intending to badmouth anyone. I believe that benchmarking the performance of reading a large file is not an artificial test but rather a real-world use case that we encounter regularly. It is no secret that

Re: Load module/program object

Well, if he's sure that SSI is all he wants, then, yes, IEHLIST is more appropriate, but off the top of my head I don't see a use case, whereas IDR records have a more obvious utility. -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 From: IBM

Re: IBM's Fall From World Dominance

Did I mention that I hate URL rewriters? -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 From: IBM Mainframe Discussion List [IBM-MAIN@LISTSERV.UA.EDU] on behalf of Bob Bridges [robhbrid...@gmail.com] Sent: Wednesday, March 1, 2023 5:43 AM To:

Re: IBM's Fall From World Dominance

THAT's how that URL came across?! Maybe it'll survive better if I leave off the "https": search.yahoo.com/?fr=altavista --- Bob Bridges, robhbrid...@gmail.com, cell 336 382-7313 /* I'm not a fatalist. But even if I were, what could I do about it? -Emo Philips */ -Original Message-

Load module/program object

Why? That will only list the directory information, while [A|I]MBLIST LISTIDR will give the IDR data as well. -- Shmuel (Seymour J.) Metz Because the Original Post (see below) asked for the SSI's of load modules. There was no mention of IDR data. Furthermore, LISTPDS,FORMAT will

Re: Bob Richards

There was an announcement. If you knew him well, could you write a tribute for cbttape.org? Thanks. -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 From: IBM Mainframe Discussion List [IBM-MAIN@LISTSERV.UA.EDU] on behalf of Rick Troth

Re: IBM's Fall From World Dominance

Alta Vista? That's a blast from the past. I miss the old Deja Vu, before google bought it and destroyed the user interface. -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 From: IBM Mainframe Discussion List [IBM-MAIN@LISTSERV.UA.EDU] on