On Tue, Nov 12, 2019 at 1:21 PM Paul Gilmartin < 0000000433f07816-dmarc-requ...@listserv.ua.edu> wrote:
> On Tue, 12 Nov 2019 12:43:26 -0600, John McKown wrote: > >On Tue, Nov 12, 2019 at 12:18 PM Tom Marchant wrote: > > > >> We have a multitasking address space in which we would like to > >> call sort to sort somewhere around a half a million entries. > >> There is a possibility that more than one task might need to > >> call sort. Will this cause a problem if one task calls sort > >> while sort is active for another task? A customer could be > >> using any of the available sort products. > > > >IIRC, with DFSORT, you can do that. But each must: 1) use a separate set > of > >DDs for SORTWORK; > > > Won't DFSORT manage the SORTWORKs? > I don't really know. I've never done this. I vaguely remember from long ago that I was told to do it. > > >2) use different DDs for SORTIN, SORTOUT and perhaps > >DFSPARM (if used).; 3) If you use any exit(s) in differents, the exit code > >will need to be truly RE-ENTRANT; 4) The address space must have > >enough virtual storage. BTW - do you mean sort 1_000_000 entries, or > >1_000_000 invocations of DFSORT? I think the same restrictions will be in > >effect for SYNCSORT as well. > > > Is BPX1FRK or BPX1EXM to create additional address spaces a possible > alternative? > o It avoids the virtual storage constraint. > o It avoids DDNAME collision. > o But allocations must be performed anew for child processes. > I like that, but it's not what the OP asked and I am not "up to snuff" this week. Just the winter blues. It also depends on the UNIX setup. And on the z/OS resources. > > -- gil > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > -- People in sleeping bags are the soft tacos of the bear world. Maranatha! <>< John McKown ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
