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Willy Jensen
Active Member
Joined: 01 Sep 2015
Posts: 772
Location: Denmark
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I am caling DFSORT zos 3.1 from an assembler program. I know that the number of records can easily be handled in storage, but SORT insists of dynamically allocating SORTWXxx datasets.
I am now trying DYNALLOC avoidance in a batch job, but without success.
I have tried all the OPTION combinations of DYNALLC=OFF with HIPRMAX, DSPSIZE and MAINSIZE I can think off with AVGRLEN=22 and SIZE=100.
What also confuses me is that the system option is DYNALOC=(SYSDA,004), but SORTWK01-05 are allocated.
Extract from latest run:
| Code: |
OPTION VLSHRT,VLSCMP,DYNALLOC=OFF,DSPSIZE=MAX,HIPRMAX=OPTIMAL,
MAINSIZE=MAX,AVGRLEN=22,SIZE=100,NOEQUALS,SMF=NO
SORT FIELDS=(5,14,CH,A)
ICE193I 0 ICEAM1 INVOCATION ENVIRONMENT IN EFFECT - ICEAM1 ENVIRONMENT SELECTED
ICE088I 0 SORTTEST.PARSE . , INPUT LRECL = 60, BLKSIZE = 27998, TYPE = VB
ICE093I 0 MAIN STORAGE = (MAX,6291456,6291456)
ICE156I 0 MAIN STORAGE ABOVE 16MB = (6234096,6234096)
ICE127I 0 OPTIONS: OVFLO=RC0 ,PAD=RC0 ,TRUNC=RC0 ,SPANINC=RC16,VLSCMP=Y,SZERO=Y,RESET=Y,VSAMEMT=Y,DYNSPC=256
ICE128I 0 OPTIONS: SIZE=6291456,MAXLIM=1048576,MINLIM=450560,EQUALS=N,LIST=Y,ERET=RC16 ,MSGDDN=SYSOUT
ICE129I 0 OPTIONS: VIO=N,RESDNT=ALL ,SMF=NO ,WRKSEC=Y,OUTSEC=Y,VERIFY=N,CHALT=N,DYNALOC=(SYSDA ,004),ABCODE=MSG
ICE054I 0 RECORDS - IN: 100, OUT: 100
ICE134I 0 NUMBER OF BYTES SORTED: 2192
ICE165I 0 TOTAL WORK DATA SET TRACKS ALLOCATED: 0 , TRACKS USED: 0
ICE199I 0 MEMORY OBJECT USED AS MAIN STORAGE = 0M BYTES
ICE299I 0 MEMORY OBJECT USED AS WORK STORAGE = 0M BYTES
ICE399I 0 MEMORY OBJECT USED IN ZSORT PATH = 0M BYTES
ICE180I 0 HIPERSPACE STORAGE USED = 0K BYTES
ICE188I 0 DATA SPACE STORAGE USED = 0K BYTES
ICE804I 1 SORTWK05 EXCP COUNT: 1
ICE804I 1 SORTWK04 EXCP COUNT: 1
ICE804I 1 SORTWK03 EXCP COUNT: 1
ICE804I 1 SORTWK02 EXCP COUNT: 1
ICE804I 1 SORTWK01 EXCP COUNT: 1 |
The manual states:
DYNALLOC=OFF Directs DFSORT not to allocate work space dynamically
Note: When Hipersorting or dataspace sorting is in effect, DFSORT uses dynamic allocation when necessary, even if DYNALLOC=OFF has been specified.
But to me it rather seems that SORT will always allocate those SORTWKxx, though not neccessarily use them.
Any ideas? |
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Joerg.Findeisen
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Joined: 15 Aug 2015
Posts: 1430
Location: Bamberg, Germany
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| You can try to specify the values through DD:DFSPARM (at least the DYNALLOC=OFF). Your seen DYNALLOC of 4 is probably complemented by DYNAPCT=10 or something similar. Should be visible in the log. |
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Willy Jensen
Active Member
Joined: 01 Sep 2015
Posts: 772
Location: Denmark
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| I had tried the DFSPARM route already (should have mentioned that), no luck. |
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Joerg.Findeisen
Senior Member
Joined: 15 Aug 2015
Posts: 1430
Location: Bamberg, Germany
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I have tried your options with a Job. That turned DYNALLOC OFF as intended. Also your settings seem more or less close to our shop's default.
Would you mind to also show the ICE130I, ICE131I, ICE132I, ICE133I, ICE235I
ICE236I msgs?
Have you, maybe by incident, static SORTWK allocated? |
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Willy Jensen
Active Member
Joined: 01 Sep 2015
Posts: 772
Location: Denmark
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Nope, this is JCL:
| Code: |
//PARSE EXEC PGM=SORT
//SYSOUT DD SYSOUT=*
//SORTSNAP DD DUMMY
//SORTDIAG DD DUMMY forces all msgs to sysout
//SORTIN DD DISP=SHR,DSN=WJ.TEST.SEQ.V60
//SORTOUT DD DISP=(,PASS),DSN=&&SORT,
// SPACE=(TRK,(1,1)),DCB=(WJ.TEST.SEQ.V60)
//* DSPSIZE=0,HIPRMAX=0,DYNALLOC=OFF
//* filsz=100,
//DFSPARM DD *
//SYSIN DD *
//G1 EXEC PGM=IEBGENER
. . . |
So I will have to figure out why the override isn't done.
Thank you for testing. |
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Joerg.Findeisen
Senior Member
Joined: 15 Aug 2015
Posts: 1430
Location: Bamberg, Germany
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I have tried as follows with 100 records:
| Code: |
OPTION VLSHRT,VLSCMP,DYNALLOC=OFF,DSPSIZE=MAX,HIPRMAX=OPTIMAL,
MAINSIZE=MAX,AVGRLEN=22,SIZE=100,NOEQUALS,SMF=NO
SORT FIELDS=(5,14,CH,A)
END |
<removed> |
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Willy Jensen
Active Member
Joined: 01 Sep 2015
Posts: 772
Location: Denmark
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| Thanks, I will go back to the manual and read more about override rules. I have done that already, but might have missed something. |
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