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>
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