You may not need to know what *group* you are in per se, if you are willing to use the file stats record. You can determine from the last stats, how many records are in your file.
Then your master program just reads the keys until it gets to the 50,000th key (or whatever), and then spawns a phantom, telling it with which key to start, and how many keys to process before it ends. Or maybe you don't need the stat file if Unidata has the @SELECTED to tell you how many keys there are -----Original Message----- From: David Wolverton <dwolv...@flash.net> To: 'U2 Users List' <u2-users@listserver.u2ug.org> Sent: Tue, Oct 2, 2012 10:59 am Subject: Re: [U2] [u2] Parallel processing in Universe Which was my question -- was there a way to 'jump to' a group or 'BASIC SELECT' with a'starting/ending' group -- so that again, 10001 moduo, one phantom does 'groups' 1-2000, next phantom does 'groups' 2001-4000 etc... But can't see that it's really possible without jumping through hoops that make it unattractive at best! At least on UniData! DW -----Original Message----- From: u2-users-boun...@listserver.u2ug.org [mailto:u2-users-boun...@listserver.u2ug.org] On Behalf Of George Gallen Sent: Tuesday, October 02, 2012 12:55 PM To: U2 Users List Subject: Re: [U2] [u2] Parallel processing in Universe OK. I See what your saying...I'll buy that. -----Original Message----- From: u2-users-boun...@listserver.u2ug.org [mailto:u2-users-boun...@listserver.u2ug.org] On Behalf Of Wjhonson Sent: Tuesday, October 02, 2012 1:42 PM To: u2-users@listserver.u2ug.org Subject: Re: [U2] [u2] Parallel processing in Universe The point of the caching concern is related to the read ahead, and you will still get some benefit from this, if your five phantoms are reading their *portion* of the file in order, which they should. -----Original Message----- From: George Gallen <ggal...@wyanokegroup.com> To: U2 Users List <u2-users@listserver.u2ug.org> Sent: Tue, Oct 2, 2012 10:39 am Subject: Re: [U2] [u2] Parallel processing in Universe If 5 phantoms were running, and read in order but from 5 different starting points, the records would Essentially still be processed in a random order, if you were to layout the record ID's as they get Processed. George -----Original Message----- From: u2-users-boun...@listserver.u2ug.org [mailto:u2-users-boun...@listserver.u2ug.org] On Behalf Of Wjhonson Sent: Tuesday, October 02, 2012 1:35 PM To: u2-users@listserver.u2ug.org Subject: Re: [U2] [u2] Parallel processing in Universe The idea of the phantoms would be to read the file in order, not randomly, just inorder from five different starting points. So you should still get the benefit of some caching. _______________________________________________ U2-Users mailing list U2-Users@listserver.u2ug.org http://listserver.u2ug.org/mailman/listinfo/u2-users _______________________________________________ U2-Users mailing list U2-Users@listserver.u2ug.org http://listserver.u2ug.org/mailman/listinfo/u2-users _______________________________________________ U2-Users mailing list U2-Users@listserver.u2ug.org http://listserver.u2ug.org/mailman/listinfo/u2-users _______________________________________________ U2-Users mailing list U2-Users@listserver.u2ug.org http://listserver.u2ug.org/mailman/listinfo/u2-users _______________________________________________ U2-Users mailing list U2-Users@listserver.u2ug.org http://listserver.u2ug.org/mailman/listinfo/u2-users
