Re: zEC12, and previous generations, why? type question - GPU computing.
With IBM's acquisition of SPSS several years ago the recent acquisition of Netezza (for use as an attached processor for computational workloads on zSeries), IBM's z/Series intentions seem to have changed. After the AS (Application System) disaster (early eighties, great demo, not scalable, ADRS based if I recall), I hope the performance concerns are addressed. Even the DB2 folk no longer accept a performance hit with a new release (more code features take more resources was a mantra at IDUG for years, finally falling flat with V8.) In particular, with the minimization of locking, data above the bar, increased use of zIIP general performance improvements, analytics with DB2 on zSeries might be cost effective for big data in a shared workload environment. See (unfortunately marketing oriented): http://www.clabbyanalytics.com/uploads/zBAfinalfinalfinal.pdf and http://berniespang.com/2012/06/08/clients-chose-ibm-system-z-for-analytics-over-teradata-and-oracle-exadata/ It would have been interesting if they had put something like this together for the 2010 census data in the way SAS did for the 1980 data, but there's plenty more data sources against which these marketing claims will soon be tested. --Original Message- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Mark Post Sent: Wednesday, September 05, 2012 1:07 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: zEC12, and previous generations, why? type question - GPU computing. On 9/5/2012 at 12:45 PM, McKown, John john.mck...@healthmarkets.com wrote: I guess that I should preface this with another question. Does anybody use a z for heavy numeric computation anymore? Or has that all gone to Intel and Power boxes? Why is that? If it is because the z architecture is not good at numeric computation, I have a question. As has been pointed out in another thread here, the dollar cost per instruction is much higher on System z than other architectures. So for purely computational workloads, although System z may have a faster CPU than the other architectures, it costs more for the same amount of computation. A lot of high performance computing is restartable in that if a computation node fails, starting that piece of work over from the beginning isn't hard. Most of the qualities that are built into System z aren't needed for that type of work, so no need to spend the big bucks for it. Mark Post -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: Auditors Don't Know Squat!
Hi Greg, Invite the auditor to approve a presentation at a professional conference to show the steps and consequences of such a policy. Should this be a problem, assign the auditors full responsibility for problems due to PE'd PTFs that would otherwise have been caught using your current maintenance scheme (the 30-day requirement problems verified/tracked by the PE date), then full speed ahead. SMP/E provides us a very good audit trail. There are also those poor folks who use the system. There will probably be substantially increased downtime, sysprog/dba/app/qa (perhaps even audit/security) time for all action+ items in a 30 day cycle versus your current scheme. The 2 metrics of increased downtime personnel costs could be evaluated Application level risk, simply due to change, is another (albeit intertwined) metric, but receives little coverage, save for the disastrous examples, such as the recent BoS fiasco). Good Luck, Peter P.S. Is this a rolling 30 days? If so, the real period for installing service is less. / Our auditors (Feds) say we need to apply all new PTF's within 30 days of availability. I'm speechless. Does anyone have the patience to form a cogent argument without laughing, crying, or tying one on? / -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: Shopz
I agree with your sentiments. Perhaps the five 9's availability is in a base other than 10? Happy Independence Day (England-Magna Carta/Runnymede June 15, Canada July 1, U.S. July 4, Venezuela July 5) to all! -Original Message- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Bobbie Justice Sent: Tuesday, July 03, 2012 9:58 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Shopz must be some more of that five 9's availability. SR is giving me An unexpected error has occurred when trying to update a pmr. I will however congratulate them on reducing their total number of pmrs, since no one wants to deal with this stupid SR system. Bobbie Jo Justice On Tue, 3 Jul 2012 08:44:46 -0400, Knutson, Sam sknut...@geico.com wrote: SR is throwing HTTP 500 Internal Server Error this morning trying to open new PMR's though. Gives you that talk to the hand feeling. It's not worth the time to deal with phone support for a SEV3 PMR better to wait and retry later it may work better. Best Regards, Sam Knutson, GEICO System z Team Leader mailto:sknut...@geico.com (office) 301.986.3574 (cell) 301.996.1318 -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
