Watch "What are Mainframes?" on YouTube

[John McKown]

https://youtu.be/ximv-PwAKnc

This guy really did an excellent job of describing the IBMz. He mentioned
the z13 in particular. No mention of z/OS, but he did mention z/TPF.

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Re: What are mainframes

[Art Gutowski]

On Tue, 11 Apr 2017 09:22:06 -0400, Bill Ashton  wrote:

>Wow...23 quadrillion calculations every second! At that speed, it should be
>able to come up with an answer before the question is even asked!

42

(Sorry, I know it's not Friday, but it was sitting right there.)

Art Gutowski
General Motors, LLC

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Re: What are mainframes

[Anne & Lynn Wheeler]

dcrayf...@gmail.com (David Crayford) writes:
> On a z13 that's stretching plausibility to breaking point!

last several mainframe generations haven't even bothered to give rate,
just relative to previous generation:

z900, 16 processors, 2.5BIPS (156MIPS/proc), Dec2000
z990, 32 processors, 9BIPS, (281MIPS/proc), 2003
z9, 54 processors, 18BIPS (333MIPS/proc), July2005
z10, 64 processors, 30BIPS (469MIPS/proc), Feb2008
z196, 80 processors, 50BIPS (625MIPS/proc), Jul2010
EC12, 101 processors, 75BIPS (743MIPS/proc), Aug2012

z13 is 30% increase (system) throughput (over EC12) or about 100BIPS
with 40% increase in no. of processors or about 710MIPS/proc.

23,000 TIPS would be around 230,000 max. configured z13s

a cloud megadatacenter staple has been e5-2600 blade, current e5-2600v4
blade is somewhere around 1.5TIPS ... so that would be 15333 systems (a
cloud megadatacenter tends towards half million systems), in
high-density configurations might be around 300-400 racks. There have
been past articles about organizations spinning up supercomputer for a
couple hrs (that would rank in the top 50 in the world) from cloud
operator (automated, w/o manual intervention), using online credit card
transactions.

HPC configurations have been juiced with graphic co-processors ... lots
of discussion, depending on application can be 100-400 times speedup
https://en.wikipedia.org/wiki/General-purpose_computing_on_graphics_processing_units
some benchmarks
http://wccftech.com/ultimate-cpu-gpu-floating-point-performance-battle-amd-intel/
http://www.tomshardware.com/reviews/geforce-gtx-750-ti-review,3750-16.html

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Re: What are mainframes

[David Crayford]

Parwez mentioned HPC but it wasn't mentioned in the article which is a 
tad disingenuous. HPC is High Performance Computing which is basically a 
supercomputer.



On 11/04/2017 9:22 PM, Bill Ashton wrote:

Wow...23 quadrillion calculations every second! At that speed, it should be
able to come up with an answer before the question is even asked!

On Tue, Apr 11, 2017 at 8:42 AM, David Crayford  wrote:


On 11/04/2017 8:34 PM, Parwez Hamid wrote:


The Met Office a HPC and 2 x IBM LinuxOne Servers. The HPC does the lager
part of the number crunching.

http://www.itproportal.com/news/met-office-gets-new-mainfram
e-can-handle-23000-trillion-calculations-per-second/


"According to a press release, this solution will allow the Met Office to
perform more than 23,000 trillion calculations per second"

On a z13 that's stretching plausibility to breaking point!

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Re: What are mainframes

[Bill Ashton]

Wow...23 quadrillion calculations every second! At that speed, it should be
able to come up with an answer before the question is even asked!

On Tue, Apr 11, 2017 at 8:42 AM, David Crayford  wrote:

> On 11/04/2017 8:34 PM, Parwez Hamid wrote:
>
>> The Met Office a HPC and 2 x IBM LinuxOne Servers. The HPC does the lager
>> part of the number crunching.
>>
>> http://www.itproportal.com/news/met-office-gets-new-mainfram
>> e-can-handle-23000-trillion-calculations-per-second/
>>
> "According to a press release, this solution will allow the Met Office to
> perform more than 23,000 trillion calculations per second"
>
> On a z13 that's stretching plausibility to breaking point!
>
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Thank you and best regards,
*Billy Ashton*

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Re: What are mainframes

[David Crayford]

On 11/04/2017 8:34 PM, Parwez Hamid wrote:

The Met Office a HPC and 2 x IBM LinuxOne Servers. The HPC does the lager part 
of the number crunching.

http://www.itproportal.com/news/met-office-gets-new-mainframe-can-handle-23000-trillion-calculations-per-second/
"According to a press release, this solution will allow the Met Office 
to perform more than 23,000 trillion calculations per second"


On a z13 that's stretching plausibility to breaking point!

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Re: What are mainframes

[Parwez Hamid]

The Met Office a HPC and 2 x IBM LinuxOne Servers. The HPC does the lager part 
of the number crunching.

http://www.itproportal.com/news/met-office-gets-new-mainframe-can-handle-23000-trillion-calculations-per-second/

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Re: FW: What are mainframes

[Anne & Lynn Wheeler]

dbo...@sinenomine.net (David Boyes) writes:
> Which is still alive and well and in production use at dozens of
> sites. It’s now supported on System z hardware as well. AFS offers a
> lot of cool stuff that make continuous availability a reality on
> relatively cheap hardware. It implements a unified directory tree
> across organization, architecture specific substitution of binaries
> (allows you to provide different binaries for a range of CPU
> architectures using the same path to the binaries), replication of
> read-only data (read-write coming soon), relocation of data volumes
> transparently while in production, strong authentication, and a whole
> lot more.
> 
> AFAIK, AFS can claim to be the first commercial application
> available for Linux on System z.  It was needed for a POC at one of
> the Wall Street banks, and IBM and the bank shared the cost of a port
> to make it happen. Total changes: 11 lines of code to implement an
> atomic compare and swap in the kernel module (needed for any new
> architecture).
> 
> AFS was rare in that all the academic sites that used it heavily
> had a source license (from the CMU days). IBM and Transarc were forced
> to preserve that in the subsequent products, and IBM turned over the
> AFS source to the open source community early in the Linux
> effort. It’s continued to be actively developed ever since.

re:
http://www.garlic.com/~lynn/2017d.html#40 What are mainframes
http://www.garlic.com/~lynn/2017d.html#41 What are mainframes
http://www.garlic.com/~lynn/2017d.html#42 What are mainframes

part of the reason that IBM went with UCLA Locus for aix/370/386 ... say
instead of mach/afs ... is that Locus did things like transparent
process migration (even across differeent architectures under some
restrictions) as well as partial file replications.
https://en.wikipedia.org/wiki/Locus_Computing_Corporation
AIX of IBM PS/2 and System/370
https://en.wikipedia.org/wiki/Locus_Computing_Corporation#AIX_for_IBM_PS.2F2_and_System.2F370

For OSF/1 there were attempts to try and merge features of
CMU mach/afs and UCLA Locus
https://en.wikipedia.org/wiki/Open_Software_Foundation

computeworld 18May1992
https://books.google.com/books?id=PUMJFIR4RGcC=PA12=PA12=ibm+osf/1=bl=yVK5vEotYF=W10rQG0pUJTnotiGvXgdD6nQg7E=en=X=0ahUKEwj2vdqe7pPTAhVK4WMKHQiKAgYQ6AEIZDAQ#v=onepage=ibm%20osf%2F1=false

Although IBM had once planned to run OSF/1 on its Personal System/2
line, today only OSF/1 commands and libraries are integrated in the
AIX/ESA

... snip ...

trivia ... the following computerworld page above has article about
"meaner, leaner PC strategy" by head of Boca/PC ... formally POK
mainframe executive.

The Locus AIX/370/PS2 reference providing "single system image"
https://en.wikipedia.org/wiki/Single-system_image

upthread I mention "single system image" which been done in the 70s for
internal worldwide sales & marketing HONE system
http://www.garlic.com/~lynn/2017d.html#42 What are mainframes

and then above also references to "From Annals Of Release No Software
Before Its Time" ... sort of also referenced here (next to last entry)
https://en.wikipedia.org/wiki/Single-system_image#Some_example_SSI_clustering_systems

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FW: What are mainframes

[David Boyes]

On 4/7/17, 3:47 PM, "David Boyes"  wrote:

Anne & Lynn Wheeler l...@garlic.com commented:

> IBM also funded $50M Andrew project at CMU, Andrew File System

Which is still alive and well and in production use at dozens of sites. 
It’s now supported on System z hardware as well. AFS offers a lot of cool stuff 
that make continuous availability a reality on relatively cheap hardware. It 
implements a unified directory tree across organization, architecture specific 
substitution of binaries (allows you to provide different binaries for a range 
of CPU architectures using the same path to the binaries), replication of 
read-only data (read-write coming soon), relocation of data volumes 
transparently while in production, strong authentication, and a whole lot more.

AFAIK, AFS can claim to be the first commercial application available for 
Linux on System z.  It was needed for a POC at one of the Wall Street banks, 
and IBM and the bank shared the cost of a port to make it happen. Total 
changes: 11 lines of code to implement an atomic compare and swap in the kernel 
module (needed for any new architecture). 

AFS was rare in that all the academic sites that used it heavily had a 
source license (from the CMU days). IBM and Transarc were forced to preserve 
that in the subsequent products, and IBM turned over the AFS source to the open 
source community early in the Linux effort. It’s continued to be actively 
developed ever since. 




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Re: What are mainframes

[Anne & Lynn Wheeler]

rpin...@firsttennessee.com (PINION, RICHARD W.) writes:
> I hacked my phone, installed Hercules, installed MVS 3.8, and 
> now my phone is controlled by MVS.
>
> But, I'm sure the Wheeler's would suggest I use VM/370 instead.

re:
http://www.garlic.com/~lynn/2017d.html#40 What are mainframes
http://www.garlic.com/~lynn/2017d.html#41 What are mainframes

in the mid-90s (having left IBM), I was brought into the largest airline
res system to look at the ten impossible things they couldn't do. I go
away and come back with all ten impossible things implemented (demo on
rs/6000 530). A big part was their existing implementation was still
based on technology trade-offs made during the 1960s. I could make
totally different trade-offs ... including making it run 100 times
faster. The processing for all passengers for all airlines in the world
could be handled by ten RS/6000 990s (a decade later, a cellphone had
the processing power and storage to it).

then the hang-wringing started. it turns out the part of 60s trade-offs
involved several hundred people manually prep'ing the data ... the redo
could use the full OAG directly w/o needing several hundred people
prep'ing the data for use.

however, the last product we did at IBM was (RS/6000) HA/CMP.
http://www.garlic.com/~lynn/subtopic.html#hacmp

We were working with national labs on cluster scaleup for filesystems
and scientific/technical and also with the (non-IBM) RDBMS vendors for
commercial. Old reference to JAN1992 meeting in (Oracle CEO) Ellison
conference room on (commercial) cluster scaleup
http://www.garlic.com/~lynn/95.html#13

within a few weeks, cluster scaleup was transferred, announced as the
IBM supercomputer (for scientific/technical *ONLY*) and we we were told
we couldn't work on anything with more than four processors. Possibly
part of the problem was that the (mainframe) DB2 group had been
complaining that if I was allowed to go ahead, it would be at least five
years ahead of them. Within a few months, we have left IBM.

17Feb1992 press, announced for "scientific and technical" *ONLY*
http://www.garlic.com/~lynn/2001n.html#6000clusters1 11May1992 press,
IBM "caught by *SURPRISE*" by national labs interest in cluster
supercomputers
http://www.garlic.com/~lynn/2001n.html#6000clusters2

in prior life, my wife was con'ed into going to POK to be responsible
for loosely-coupled (mainframe for "cluster") ... where she developed
peer-coupled shared data architecture ... some past posts
http://www.garlic.com/~lynn/submain.html#shareddata

however she didn't remain long because 1) poor uptake (except for IMS
hotstandby) until sysplex and parallel sysplex and 2) constant battles
with the communication group trying to force her into using SNA/VTAM for
loosely coupled operation (there would be periodic temporary truce where
they said she could use anything within the walls of the datacenter, but
they had corporate strategic ownership of everything that crossed the
datacenter walls, but then communication group would break the truce and
start again).

as an aside, early 1979, I was con'ed into doing benchmarks on
engineering 4341 for LLNL that was looking at getting seventy for
compute farm ... leading edge of the coming cluster supercomputing
(cluster supercomputing interest by national labs from more than decade
earlier).

One of my hobbies (70s through mid-80s) was enhanced operating systems
(develop, ship, support) for internal datacenters ...  one of the long
time customers was world-wide online sales support HONE
system. In the mid-70s, the US HONE datacenters were consolidated in
Palo Alto (trivia: when facebook first moved into silicon valley, it was
into a new bldg built next door to the former HONE datacenter). In 1979,
HONE had largest single-system-image, loosely-coupled mainframe
operation in the world with load-balancing and fall-over. In the early
80s, it was replicated in Dallas and then in Boulder with fall-over
between datacenters.
http://www.garlic.com/~lynn/subtopic.html#hone

some airlines might have ACP 8-way loosely-coupled (3830 4channel switch
with 3330 string switch for up to 8 channels) but didn't get
tightly-coupled support until many years later.  US HONE had 8-way
loosely coupled and each processor complex had 2nd "attached-processor"
(for 16 processors total). Whole device reserve/release was performance
killer. ACP did have the ACP 3830 "lock" RPQ ... supporting fine-grain
logical locking ... but didn't work across 3830 controllers with 3330
string switch (limited to 4channel configurations). HONE instead used a
channel program sequence that was the logical equivalent to the
compare instruction. past posts mentioning SMP and/or compare
http://www.garlic.com/~lynn/subtopic.html#smp

"From Annals Of Release No Software Before Its time" 2009 post about IBM
press regarding RS/6000 RDBMS cluster scaleup (nearly 20yrs later) and
zVM loosely-coupled

Re: What are mainframes

[Anne & Lynn Wheeler]

mike.a.sch...@gmail.com (Mike Schwab) writes:
> Android Phones and Pads are derived from Linux, biggest seller in both
> categories. Apple iPhones and iPads are derived from Darwin (BSD), 2nd
> biggest seller in both categories.

re:
http://www.garlic.com/~lynn/2017d.html#40 What are mainframes

triva: Darwin derived originally from NextSTEP, original derived from
(CMU's) Mach
https://en.wikipedia.org/wiki/Darwin_(operating_system)

in the 80s, IBM's (new academic) ACIS was pouring money into
universities ... it funded a lot of corporate sponsored BITNET
(which was larger than arpanet/internet for a time)
http://www.garlic.com/~lynn/subnetwork.html#bitnet

based on IBM's internal network technology, vm370 vnet/rscs (which was
larger than arpanet/internet from just about the beginning until
sometime mid-80s)
http://www.garlic.com/~lynn/subnetwork.html#internalnet

it also jointly funded MIT's project Athena with DEC ($25M each, DEC and
IBM both had assistant directors at project Athena, the IBM assistant
director was a former co-worker from the IBM cambridge science center).

IBM also funded $50M Andrew project at CMU, Andrew File System, Mach
unix work-alike operating system, camelot (ibm then funded spin-off as
TRANSARC and then bought TRANSARC outright), IBM rep was former
co-worker at IBM San Jose Research.

Mach
https://en.wikipedia.org/wiki/Mach_(kernel)

Mach is a kernel developed at Carnegie Mellon University to support
operating system research, primarily distributed and parallel
computing. Mach is often mentioned as one of the earliest examples of a
microkernel. However, not all versions of Mach are microkernels. Mach's
derivatives are the basis of the modern operating system kernels in GNU
Hurd and Apple's operating systems macOS, iOS, tvOS and watchOS.

The project at Carnegie Mellon ran from 1985 to 1994, ending with Mach
3.0, which is a true microkernel. Mach was developed as a replacement
for the kernel in the BSD version of Unix, so no new operating system
would have to be designed around it. Experimental research on Mach
appears to have ended, although Mach and its derivatives exist within a
number of commercial operating systems. These include NeXTSTEP and
OpenStep, upon which macOS is based -- all using the XNU operating
system kernel which incorporates an earlier, non-microkernel, Mach as a
major component. The Mach virtual memory management system was also
adopted in 4.4BSD by the BSD developers at CSRG,[2] and appears in
modern BSD-derived Unix systems, such as FreeBSD.

... snip ... 

Transarc
https://en.wikipedia.org/wiki/Transarc
Andrew File System
https://en.wikipedia.org/wiki/Andrew_File_System

Not originally funded by IBM, but there was also UCLA's Locus unix
work-alike.  However IBM PASC then worked closely with UCLA and Locus
was used for IBM's AIX/370 and AIX/386
https://en.wikipedia.org/wiki/LOCUS_(operating_system)

even more trivia, Mach wiki references EROS
https://en.wikipedia.org/wiki/LOCUS_(operating_system)

The EROS project started in 1991 as a clean-room reconstruction of an
earlier system, KeyKOS. KeyKOS was an operating system developed by Key
Logic, Inc., and was a direct continuation of work on the earlier GNOSIS
(Great New Operating System In the Sky) system created by Tymshare,
Inc. The KeyKOS system offered a degree of security and reliability that
remains unduplicated today (2006).[citation needed] The circumstances
surrounding Key Logic's unfortunate demise in 1991 made licensing KeyKOS
impractical. Since KeyKOS did not run on popular commodity processors in
any case, the decision was made to reconstruct it from the publicly
available documentation.

... snip ...

capability-based operating systems derived from the IBM 370 GNOSIS
operating system developed by Tymshare. when M/D bought Tymshare, I was
brought in to evaluate GNOSIS as part of the spin-off as KeyKOS.

Key Logic did some optimization and partly because of the higher-level
abstraction, they were able to redevelop (IBM) ACP/TPF applications and
show them running faster on KeyKOS than on ACP/TPF (on the same
hardware).

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Re: What are mainframes

[PINION, RICHARD W.]

I hacked my phone, installed Hercules, installed MVS 3.8, and 
now my phone is controlled by MVS.

But, I'm sure the Wheeler's would suggest I use VM/370 instead.

-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf 
Of Mike Schwab
Sent: Thursday, April 06, 2017 12:41 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: What are mainframes

Android Phones and Pads are derived from Linux, biggest seller in both 
categories. Apple iPhones and iPads are derived from Darwin (BSD), 2nd biggest 
seller in both categories.

On Thu, Apr 6, 2017 at 11:24 AM, Anne & Lynn Wheeler <l...@garlic.com> wrote:
> patrick.mul...@gwl.ca (Mullen, Patrick) writes:
>> We had an IBMer give a presentation a couple weeks back, an update on 
>> all things z. He mentioned that one of the biggest users of zLinux on 
>> the planet was ADP, who of course use it for...payroll.
>
> from a recent IBM discussion on OS2 
>
> A non-enduser friendly operating system would have later been up 
> against Linux. One of the reason that prevailed against both m'soft 
> and OS2 in that market was full source being available. A big (early) 
> uptake for Linux was cluster supercomputer "GRID" market ... that also 
> evolves into cloud megadatacenters (claim is that over half of all 
> server chips now ship directly to cloud megadatacenters, likely 
> contributing to IBM selling off its server business; cloud 
> megadatacenter claim they assemble their own systems for 1/3rd the 
> price of brand name systems). Linux was both "free" ... but also there 
> was lots of need for full source to adapt the execution model to large 
> cluster scaleup (both GRID supercomputers and cloud megadatacenters).
>
> recent claim
>
> 70% of the total number of "real" computers run linux 10% run msoft 
> 10% run ios 5% run Darwin 5% run other stuff
>
> also embedded & process control industry, autos with ten or more linux 
> systems, settop boxes, TVs, alarm systems (homes may have 30 linux
> systems)
>
> --
> virtualization experience starting Jan1968, online at home since 
> Mar1970
>
> --
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Re: What are mainframes

[Mike Schwab]

Android Phones and Pads are derived from Linux, biggest seller in both
categories. Apple iPhones and iPads are derived from Darwin (BSD), 2nd
biggest seller in both categories.

On Thu, Apr 6, 2017 at 11:24 AM, Anne & Lynn Wheeler  wrote:
> patrick.mul...@gwl.ca (Mullen, Patrick) writes:
>> We had an IBMer give a presentation a couple weeks back, an update on
>> all things z. He mentioned that one of the biggest users of zLinux on
>> the planet was ADP, who of course use it for...payroll.
>
> from a recent IBM discussion on OS2 
>
> A non-enduser friendly operating system would have later been up against
> Linux. One of the reason that prevailed against both m'soft and OS2 in
> that market was full source being available. A big (early) uptake for
> Linux was cluster supercomputer "GRID" market ... that also evolves into
> cloud megadatacenters (claim is that over half of all server chips now
> ship directly to cloud megadatacenters, likely contributing to IBM
> selling off its server business; cloud megadatacenter claim they
> assemble their own systems for 1/3rd the price of brand name
> systems). Linux was both "free" ... but also there was lots of need for
> full source to adapt the execution model to large cluster scaleup (both
> GRID supercomputers and cloud megadatacenters).
>
> recent claim
>
> 70% of the total number of "real" computers run linux
> 10% run msoft
> 10% run ios
> 5% run Darwin
> 5% run other stuff
>
> also embedded & process control industry, autos with ten or more linux
> systems, settop boxes, TVs, alarm systems (homes may have 30 linux
> systems)
>
> --
> virtualization experience starting Jan1968, online at home since Mar1970
>
> --
> For IBM-MAIN subscribe / signoff / archive access instructions,
> send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN



-- 
Mike A Schwab, Springfield IL USA
Where do Forest Rangers go to get away from it all?

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Re: What are mainframes

[Anne & Lynn Wheeler]

patrick.mul...@gwl.ca (Mullen, Patrick) writes:
> We had an IBMer give a presentation a couple weeks back, an update on
> all things z. He mentioned that one of the biggest users of zLinux on
> the planet was ADP, who of course use it for...payroll.

from a recent IBM discussion on OS2 

A non-enduser friendly operating system would have later been up against
Linux. One of the reason that prevailed against both m'soft and OS2 in
that market was full source being available. A big (early) uptake for
Linux was cluster supercomputer "GRID" market ... that also evolves into
cloud megadatacenters (claim is that over half of all server chips now
ship directly to cloud megadatacenters, likely contributing to IBM
selling off its server business; cloud megadatacenter claim they
assemble their own systems for 1/3rd the price of brand name
systems). Linux was both "free" ... but also there was lots of need for
full source to adapt the execution model to large cluster scaleup (both
GRID supercomputers and cloud megadatacenters).

recent claim

70% of the total number of "real" computers run linux
10% run msoft
10% run ios
5% run Darwin
5% run other stuff

also embedded & process control industry, autos with ten or more linux
systems, settop boxes, TVs, alarm systems (homes may have 30 linux
systems)

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Re: What are mainframes

[Phil Smith]

Tangentially related...

Patrick Mullen wrote:
> We had an IBMer give a presentation a couple weeks back, an update on all 
> things z. He mentioned that one of the biggest users of zLinux on the planet 
> was ADP, who of course use it for...payroll.

Tangentially related: in 2000, I was at a user group meeting. A bunch of us 
were standing around chatting. I was at a startup, and so was a friend. I asked 
him how things were going, and he said "Well, we made payroll, so that's 
good..."

Another friend, who works for the U.S. government, chimed in, "That is good. 
When we did our payroll on the mainframe, it was reliable; since we moved it to 
distributed, it's usually late."

My startup friend and I looked at each other and agreed that we were talking 
about VERY different definitions of "making payroll". But the .gov guy's point 
was still a good one!

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Re: What are mainframes

[Mullen, Patrick]

We had an IBMer give a presentation a couple weeks back, an update on all 
things z. He mentioned that one of the biggest users of zLinux on the planet 
was ADP, who of course use it for...payroll. 



-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf 
Of Bill Woodger
Sent: Thursday, April 06, 2017 6:30 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: What are mainframes

On Thu, 6 Apr 2017 19:02:23 +0800, David Crayford <dcrayf...@gmail.com> wrote:

>On 6/04/2017 6:35 PM, Bill Woodger wrote:
>> Just to note, the UK Weather Centre (The Meteorological Office, or Met 
>> Office) uses a big-boy LinuxONE and they were an early user of that.
>
>Do you know what they use if for? Probably not for weather forecasting 
>algorithms.
>

There's other stuff out there as well, but here's a link: 
https://urldefense.proofpoint.com/v2/url?u=https-3A__www-2D01.ibm.com_software_uk_system-2Dz_case-2Dstudies.html=CwIFaQ=WOw_-MBzs743TEfXwfA7Tw=kle-_F3IWRF-Gw0F_l5HNge2Iw6bGlOQxJ_-Ik-ufXE=HQ1Jf61VqemDOq2SMaF2V4IF3LzWdgX69dekwt-YBYE=i1VBdsodATLiIh8lfjRh0-IQvB7XgFnWq-fSU-h3rTw=
 

Doesn't look like they use it for Payroll.

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Re: What are mainframes

[Vince Coen]

Taken from the Technical Manual for PRECIS :-

---
Timely access to detailed climate change scenarios is particularly vital 
in developing countries, where economic stresses are likely to increase 
vulnerability to potentially damaging impacts of climate change. In 
order to help address this need the Met Office Hadley Centre has 
developed PRECIS, a regional climate modelling system which can be run 
on a personal computer (PC). The aim of PRECIS (Providing Regional 
Climates for Impacts Studies) is to allow developing countries, or 
groups of developing countries, to generate their own national scenarios 
of climate change for use in impacts studies. This will allow transfers 
of technology and ownership resulting in much more timely and effective 
dissemination of expertise and awareness than if results are simply 
handed out from climate model experiments run in developed countries. In 
addition, countries using PRECIS are in a better position to validate 
the model using their ownhistorical meteorological observations



It then goes on to discus installation having pre-installed Linux and 
Fortran (Intel).


For more information see :-

http://www.metoffice.gov.uk/binaries/content/assets/mohippo/pdf/4/m/tech_man_v2.pdf

In another mention for Linux we have this take from "MOSAC and SRG 
Meetings 2015" :-


---
Introduction:

At the time of MOSAC/SRG last year, we had just secured funding for a 
major investment in HPC and signed a contract with Cray. We outlined the 
plans for a staged implementation of the new supercomputer, and the 
broad shape of how we planned to exploit it scientifically. Huge amounts 
of work this year have gone in to the technical implementation, 
culminating in the successful operational transition from the IBM to 
Phase 1a of the Cray in August. This excellent progress – and further 
refinement of our science plans – means that we believe that we are well 
placed to exploit the major enhancements in capability that will come 
over the next 18 months.


Implementation

Phase 1a of the Cray (1088 Cray XC40 nodes, with Intel Haswell 
processors) provides, as expected, broadly like-for-like performance 
relative to the IBM which it replaced. Operational transition on August 
25th was achieved comfortably ahead of the deadline of the end of the 
IBM contract. It is split across the two existing computer halls, and 
includes the collaborative MONSooN system (jointly funded by the Met 
Office and NERC) which has proved so valuable in enabling joint work 
with academia.


Timelines and expectations for Phases 1b and 1c remain as described last 
year. Phase 1b will expand the existing 1a systems (with Intel Broadwell 
processors) to give around a x6 uplift in compute capacity in March 
2016. Phase 1c will follow a year behind, and take the total increase 
relative to the IBM to around x15. It will be located on Exeter Science 
Park (just across the motorway), and works on the new IT hall and 
collaborative space have commenced.
In parallel we have been working on the required developments to the 
downstream systems, commensurate with the HPC enhancements. The mass 
archive is currently being upgraded, with a Phase 2 further upgrade 
planned for early 2017. By 2020 we envisage a more than 10-fold increase 
in the total size of the archive (currently 32 PB in each hall). In 
parallel, the Scientific Processing and Intensive Compute Environment 
(SPICE) project will deliver a replacement of the existing Enterprise 
Linux Server hardware and associated storage capabilities, and a radical 
change in middleware and toolsets that will enable science to perform 
more efficiently by making better use of available compute and storage 
resources. The intent is the provision of a highly capable and scalable 
compute installation which will enable a range of non-HPC scientific 
data processing, including capability for post processing of model 
outputs, research and development activities, collaborative work and 
routine administration including code building and the preparation of 
data for visualisation. Phases 1 and 2 are planned to be operational in 
March 2016 and March 2017 respectively, and their design has benefited 
significantly from close links to the NERC JASMIN facility.

---

All information taken from the Met Office website .


Vince



On 06/04/17 12:02, David Crayford wrote:

On 6/04/2017 6:35 PM, Bill Woodger wrote:
Just to note, the UK Weather Centre (The Meteorological Office, or 
Met Office) uses a big-boy LinuxONE and they were an early user of that.


Do you know what they use if for? Probably not for weather forecasting 
algorithms.


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Re: What are mainframes

[David Crayford]

On 6/04/2017 7:30 PM, Bill Woodger wrote:

On 6/04/2017 6:35 PM, Bill Woodger wrote:

Just to note, the UK Weather Centre (The Meteorological Office, or Met Office) 
uses a big-boy LinuxONE and they were an early user of that.

Do you know what they use if for? Probably not for weather forecasting
algorithms.


There's other stuff out there as well, but here's a 
link:https://www-01.ibm.com/software/uk/system-z/case-studies.html

Doesn't look like they use it for Payroll.


Good on the Met Office! That's a government organization that obviously 
values reliability above all else.


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Re: What are mainframes

[Bill Woodger]

On Thu, 6 Apr 2017 19:02:23 +0800, David Crayford  wrote:

>On 6/04/2017 6:35 PM, Bill Woodger wrote:
>> Just to note, the UK Weather Centre (The Meteorological Office, or Met 
>> Office) uses a big-boy LinuxONE and they were an early user of that.
>
>Do you know what they use if for? Probably not for weather forecasting
>algorithms.
>

There's other stuff out there as well, but here's a link: 
https://www-01.ibm.com/software/uk/system-z/case-studies.html

Doesn't look like they use it for Payroll.

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Re: What are mainframes

[David Crayford]

On 6/04/2017 6:35 PM, Bill Woodger wrote:

Just to note, the UK Weather Centre (The Meteorological Office, or Met Office) 
uses a big-boy LinuxONE and they were an early user of that.


Do you know what they use if for? Probably not for weather forecasting 
algorithms.


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Re: What are mainframes

[Bill Woodger]

Just to note, the UK Weather Centre (The Meteorological Office, or Met Office) 
uses a big-boy LinuxONE and they were an early user of that.

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Re: What are mainframes

[Richards, Robert B.]

Connor,

Thanks for taking the baton! It makes us old farts hopeful that our "legacy" 
will continue until a *true* better mousetrap comes alongnot just wannabes.

Bob

-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf 
Of Connor Krukosky
Sent: Wednesday, April 05, 2017 4:57 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: What are mainframes

On 4/5/2017 4:15 PM, Phil Smith wrote:
> Agreed, though he loses partial points for (a) being overwrought and (b) 
> getting SAP wrong. But the first is obviously subjective and the second is a 
> nit.
If you check the description of the video you'll see my name there :) I 
supplied them with about 1000x the amount of information they put into the 
video since its a 'tech quickie' and what I supplied would have made a solid 
hour long video or something.
I did mention SAPs but didn't go into detail about them. They may have done 
their own research and gotten that info.
I'd say for the average person who thought mainframes were dead or didn't know 
they existed, its more than a good enough explanation.

I helped with this video for the exact reason that I'd hope that this would 
reach out to a younger audience who don't know about mainframes or who might 
have thought they were old tech.

I may be doing a different video with them in the future on their main channel 
which will hopefully get about 10 times the views this one is getting. Again, 
all in hope that some of the younger generation, my generation, will learn that 
the mainframe is NOT dead.

-Connor Krukosky

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Re: What are mainframes

[PINION, RICHARD W.]

Three cheers for Connor!

-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf 
Of Connor Krukosky
Sent: Wednesday, April 05, 2017 4:57 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: What are mainframes

On 4/5/2017 4:15 PM, Phil Smith wrote:
> Agreed, though he loses partial points for (a) being overwrought and (b) 
> getting SAP wrong. But the first is obviously subjective and the second is a 
> nit.
If you check the description of the video you'll see my name there :) I 
supplied them with about 1000x the amount of information they put into the 
video since its a 'tech quickie' and what I supplied would have made a solid 
hour long video or something.
I did mention SAPs but didn't go into detail about them. They may have done 
their own research and gotten that info.
I'd say for the average person who thought mainframes were dead or didn't know 
they existed, its more than a good enough explanation.

I helped with this video for the exact reason that I'd hope that this would 
reach out to a younger audience who don't know about mainframes or who might 
have thought they were old tech.

I may be doing a different video with them in the future on their main channel 
which will hopefully get about 10 times the views this one is getting. Again, 
all in hope that some of the younger generation, my generation, will learn that 
the mainframe is NOT dead.

-Connor Krukosky

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Re: What are mainframes

[Mike Myers]

Hey Connor:

My name is Mike Myers and I am a long-time (51 years) mainframe systems 
programmer. I am presently involved in a Dept. of Labor project with NC 
A State University, IBM, SHARE and several others to bring 
under-served communities (women, minorities, veterans, etc.) into 
mainframe apprenticeship programs. One thing I am trying to do is 
understand the reasons that young people like yourself find Information 
Technology appealing, and particularly things that would attract that 
community to mainframes. If you have any specific ideas you would be 
willing to share, I would certainly appreciate it. The ideas will be 
incorporated into a presentation that will ultimately appear on the 
Destination Z website.


Old guys like myself, who have been in the mainframe community for 
decades, had our reasons to get involved years ago (most of which still 
apply), but those details are so mature now that it's more difficult to 
see what those the same age we were way back then see as being 
attractive today. Any thoughts you have would be helpful.


Mike Myers
Vice President
Senior Systems Programmer
Mentor Services Corporation
Goldsboro, NC
(919) 341-5210 - voice

On 04/05/2017 04:57 PM, Connor Krukosky wrote:

On 4/5/2017 4:15 PM, Phil Smith wrote:
Agreed, though he loses partial points for (a) being overwrought and 
(b) getting SAP wrong. But the first is obviously subjective and the 
second is a nit.

If you check the description of the video you'll see my name there :)
I supplied them with about 1000x the amount of information they put 
into the video since its a 'tech quickie' and what I supplied would 
have made a solid hour long video or something.
I did mention SAPs but didn't go into detail about them. They may have 
done their own research and gotten that info.
I'd say for the average person who thought mainframes were dead or 
didn't know they existed, its more than a good enough explanation.


I helped with this video for the exact reason that I'd hope that this 
would reach out to a younger audience who don't know about mainframes 
or who might have thought they were old tech.


I may be doing a different video with them in the future on their main 
channel which will hopefully get about 10 times the views this one is 
getting. Again, all in hope that some of the younger generation, my 
generation, will learn that the mainframe is NOT dead.


-Connor Krukosky

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Re: What are mainframes

[big.e.smalls]

Outstanding on all counts Connor. More more more.

 Original Message 
Subject: Re: What are mainframes
Local Time: April 5, 2017 3:57 PM
UTC Time: April 5, 2017 8:57 PM
From: conn...@connorsdomain.com
To: IBM-MAIN@LISTSERV.UA.EDU

On 4/5/2017 4:15 PM, Phil Smith wrote:
> Agreed, though he loses partial points for (a) being overwrought and (b) 
> getting SAP wrong. But the first is obviously subjective and the second is a 
> nit.
If you check the description of the video you'll see my name there :)
I supplied them with about 1000x the amount of information they put into
the video since its a 'tech quickie' and what I supplied would have made
a solid hour long video or something.
I did mention SAPs but didn't go into detail about them. They may have
done their own research and gotten that info.
I'd say for the average person who thought mainframes were dead or
didn't know they existed, its more than a good enough explanation.

I helped with this video for the exact reason that I'd hope that this
would reach out to a younger audience who don't know about mainframes or
who might have thought they were old tech.

I may be doing a different video with them in the future on their main
channel which will hopefully get about 10 times the views this one is
getting. Again, all in hope that some of the younger generation, my
generation, will learn that the mainframe is NOT dead.

-Connor Krukosky

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Re: What are mainframes

[Connor Krukosky]

On 4/5/2017 4:15 PM, Phil Smith wrote:

Agreed, though he loses partial points for (a) being overwrought and (b) 
getting SAP wrong. But the first is obviously subjective and the second is a 
nit.

If you check the description of the video you'll see my name there :)
I supplied them with about 1000x the amount of information they put into 
the video since its a 'tech quickie' and what I supplied would have made 
a solid hour long video or something.
I did mention SAPs but didn't go into detail about them. They may have 
done their own research and gotten that info.
I'd say for the average person who thought mainframes were dead or 
didn't know they existed, its more than a good enough explanation.


I helped with this video for the exact reason that I'd hope that this 
would reach out to a younger audience who don't know about mainframes or 
who might have thought they were old tech.


I may be doing a different video with them in the future on their main 
channel which will hopefully get about 10 times the views this one is 
getting. Again, all in hope that some of the younger generation, my 
generation, will learn that the mainframe is NOT dead.


-Connor Krukosky

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Re: What are mainframes

[Phil Smith]

Agreed, though he loses partial points for (a) being overwrought and (b) 
getting SAP wrong. But the first is obviously subjective and the second is a 
nit.


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Re: What are mainframes

[David Crayford]

On 5/04/2017 8:05 PM, big.e.smalls wrote:

I think he did a good job,
https://youtu.be/ximv-PwAKnc


I enjoyed it. It's a good take on how millennials should view the 
mainframe. It's not about massive computing power it's about reliability.




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AW: What are mainframes

[Peter Hunkeler]

>I think he did a good job,
>https://youtu.be/ximv-PwAKnc




Absolutely agree.


--
Peter Hunkeler



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What are mainframes

[big.e.smalls]

I think he did a good job,
https://youtu.be/ximv-PwAKnc

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