Fwd: Re: Dezimalarithmetik + NETREXX
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Fwd: Re: Dezimalarithmetik + NETREXX
 
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Hello there,
I did, at the IBM Vienna 2011 meeting, here in Austria, got into contacts to some IBM representatives who did react to my inquiry about the HARDWARE-implemented Feature of DECIMAL ARITHMETIC on the new IBM zOS System. As you see, it has been just confirmed by Silvia Melitta Mueller, that this new HARDWARE CHIP has been based on Mike's spec's. 1.) Congratulations, Mike! 2.) I personally do think, that, after getting the announced answers for Silvia, we should *together* proceed to support this HARDWARE interface, mutually exchangable by to current SOFTWARE implementation the current Rexx class does provide. I will kepp you (as always) informed about the progress! Sincerely, yours. Thomas Schneider. ============================================================ -------- Original-Nachricht --------
Hi Mr Schneider, yes, the Decimal Floating-Point unit in the SystemZ machines implements the Decimal arithmetic as specified by mike Cowlishaw. I will check with our Java compiler team how to best access our hardware, and will get back to you with the API shortly. Mit freundlichen Grüßen / Kind regards Dr. Silvia Melitta Mueller STSM, FPU Lead IBM Systems &Technology Group, Technology Development HD Technical Leadership
Hello Mrs. Mueller, as I'm copying here Mr. Rene Vincent Jansen, President REXXLA (The Rexx Language Association, see www.RexxLa.org), and also Project Leader for the IBM NetRexx goes OPEN Source project (see www.netrexx.org), and Mike F. Cowlishaw, IBM Fellow, IBM UK Hursley Laboratories, the original father of IBM Rexx as well as IBM NetRexx, I might write this e-mail in english please. There are efforts underway toenhance Netrexx to DIRECTLY use the DECIMAL Arithmetic HARDWARE Features of the IBM zOS for the mutual benefit of all IBM mainframe customers. I'm, however, still seeking for some needed technical advise HOW to access this DECIMAL HARDWARE CHIP properly from a Java Pogram. As you might know, Mike did a marvelous job defining this DECIMAL ARITHMETIC (with *any arbitrary precision* over years, and also did implement a software based solution both in classic Rexx, NetRexx, and later pure C and Java). What I'm particularly interested in is to directly be able to use the zOS Hardware Chip available. When you could send us any infos relating this issue you will be more than welcome. Sincereley, Thomas Schneider. ============================================================= Am 10.10.2011 12:13, schrieb Silvia Melitta Mueller1: Hallo Herr Schneider ich stehe Ihnen gerne mit meinen Erfahrungen bzgl Dezimalarithmetik zur Verfügung um eine effiziente Lösung für Ihre Anwendung zu finden. Mit freundlichen Grüßen / Kind regards Dr. Silvia Melitta Mueller STSM, FPU Lead IBM Systems &Technology Group, Technology Development HD Technical Leadership
Hallo Silvia, wie am Freitag besprochen hier die Kontaktdaten von Herrn Schneider. Ich habe Herrn Schneider letzten Donnerstag auf einer IBM Veranstaltung in Wien getroffen. er hat fragen zu dem Thema HW Unterstützung der Dezimalarithmetik uaf System z für die Programmiersprache Netrexx. @ Thomas Schneider: Bitte gehen Sie direkt mit Ihren Fragen auf Frau Mueller zu, sie kann Ihnen sicherliche weiter helfen. Mit freundlichen Grüßen / Kind regards Matthias R. Bangert Senior Consulting IT-Specialist / Technical Sales Manager zEnterprise IBM Systems and Technology Group - Northeast Europe Phone: +49-8106-306161 / Mobile: +49-170-4533091 IBM Deutschland GmbH Vorsitzender des Aufsichtsrats: Martin Jetter Geschäftsführung: Martina Koederitz(Vorsitzende), Reinhard Reschke, Gregor Pillen, Christian Noll, Joachim Heel, Dieter Scholz Sitz der Gesellschaft: Ehningen, Registergericht: Amtsgericht Stuttgart, HRB 14562 WEEE-Reg.-Nr. DE 99369940 -- Thomas Schneider (Founder of www.thsitc.com) Member of the Rexx Languge Asscociation (www.rexxla.org) Member of the NetRexx Developer's Team (www.netrexx.org) --
Thomas Schneider (Founder of www.thsitc.com) Member of the Rexx Languge Asscociation (www.rexxla.org) Member of the NetRexx Developer's Team (www.netrexx.org) _______________________________________________ Ibm-netrexx mailing list [hidden email] Online Archive : http://ibm-netrexx.215625.n3.nabble.com/
Thomas Schneider, Vienna, Austria (Europe) :-)
www.thsitc.com www.db-123.com |
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Re: Fwd: Re: Dezimalarithmetik + NETREXX
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Hello Silvia,
thank you so much in confirming what IBM did to implement DECIMAL Arithmetic, as specified by the new standard, by Hardware on the IBM zOS and also Power6 (and therefore Power7 system, I suppose). I personally do remember how hard Mike F. Cowlishaw did work for years to get this standard out.... I herewith ask all NetRexx parties interested to download and read the link in Silvia's mail below. Rene, I also do think we should put this paper on www.netrexx.org as well. My personal opinion, therefore, is to enhance the NetRexxC Compiler in one of the next releases (probably 4.00) to provide a new OPTION for the NetRexx Compiler, e.g.: BIGDECIMAL0 ::== current implementation as in current NetRexx Rexx class (the default) BIGDECIMAL1 :== Mike Cowlishaws (newer) BigDecimal class BIGDECIMAL2 ::== Java's (newer) BigDecimal class ... BIGDECIMAL9 ::== IBM's HARDWARE implementation. BIGDECIMAL0-8 should be preserved for SOFTWARE implementations, *and* BIGDECIMAL9 ... for HARDWARE implementations, IMHO. We should discuss this issue on the netrexx developers's group in KENAI in more detail, when you like. Silvia, I'll keep you informed for the progress on this issue, as far as NetRexx is involved. Surly, NetRexx is *the Language* to implement those interfaces very soon. Kind regards from Vienna, and thanks again for your instant advise and help. Thomas Schneider. PS: Silvia, please do forward this mail to the proper IBM parties who might be interested on this topic. ========================================================== Am 13.10.2011 13:38, schrieb Silvia Melitta Mueller1:
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Thomas Schneider (Founder of www.thsitc.com) Member of the Rexx Languge Asscociation (www.rexxla.org) Member of the NetRexx Developer's Team (www.netrexx.org) _______________________________________________ Ibm-netrexx mailing list [hidden email] Online Archive : http://ibm-netrexx.215625.n3.nabble.com/
Thomas Schneider, Vienna, Austria (Europe) :-)
www.thsitc.com www.db-123.com |
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