Thank you for that presentation. Interesting indeed. If you think INSPECT has performance issues, did you ever look at the code generated by INITIALIZE? <*Shudder*>
Peter -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of David Crayford Sent: Thursday, July 23, 2015 12:18 AM To: [email protected] Subject: Re: to C programmers on a z13 On 22/07/2015 10:26 PM, Farley, Peter x23353 wrote: > Do you remember the presentation number, or which at which SHARE meeting it > was presented? > > I would be interested to read it myself. IIRC, it was this one about Java 8 https://share.confex.com/share/124/webprogram/Handout/Session16815/IBM%20Java%20News.pdf. Check out SIMD string operations. You'll notice a lot of string searching, translation methods. Now imagine what you could do if you exploited those same instructions in a language like COBOL. INSPECT statement on steroids! INSPECT has always been a performance issue. > Peter > > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] > On Behalf Of David Crayford > Sent: Wednesday, July 22, 2015 7:57 AM > To: [email protected] > Subject: Re: to C programmers on a z13 > > I've read a SHARE presentation that they are planning use the SIMD > instructions to move data. memcpy() on steroids! Java JVMs and > compiler optimizers can take advantage of these new instructions in > interesting ways. > > On 22/07/2015 7:49 PM, John McKown wrote: >> This might be of some interest: >> http://www.ibm.com/developerworks/library/ba-parallelism-z13-simd-trs >> / >> <abstract> >> The IBM z13 hardware provides a new SIMD unit. This article describes >> how to use the IBM z/OS XL C/C++ language to take advantage of the >> new processor and exploit the enhanced parallelism it offers. This >> article also provides an overview of the new data types, the >> operations that can be done on those data types, and the built-in >> functions to make vector programming easier. >> </abstract> >> -- This message and any attachments are intended only for the use of the addressee and may contain information that is privileged and confidential. If the reader of the message is not the intended recipient or an authorized representative of the intended recipient, you are hereby notified that any dissemination of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by e-mail and delete the message and any attachments from your system. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
