The runtime options in effect at the time the routine is run can affect routine behavior. Use RPTOPTS(ON) to generate an options report in the Language Environment message file when your routine terminates. The options report lists runtime options, and indicates where they were set. Figure 1 shows a sample options report.
Figure 1. Options
report example produced by runtime option RPTOPTS(ON)
Options Report for Enclave main 09/17/12 03:30:35 PM
Language Environment V02 R01.00
LAST WHERE SET OPTION
-------------------------------------------------------------------------------
IBM-supplied default ABPERC(NONE)
IBM-supplied default ABTERMENC(ABEND)
IBM-supplied default NOAIXBLD
IBM-supplied default ALL31(ON)
IBM-supplied default ANYHEAP(16384,8192,ANYWHERE,FREE)
IBM-supplied default NOAUTOTASK
IBM-supplied default BELOWHEAP(8192,4096,FREE)
IBM-supplied default CBLOPTS(ON)
IBM-supplied default CBLPSHPOP(ON)
IBM-supplied default CBLQDA(OFF)
IBM-supplied default CEEDUMP(60,SYSOUT=*,FREE=END,SPIN=UNALLOC)
IBM-supplied default CHECK(ON)
IBM-supplied default COUNTRY(US)
IBM-supplied default NODEBUG
IBM-supplied default DEPTHCONDLMT(10)
IBM-supplied default DYNDUMP(*USERID,NODYNAMIC,TDUMP)
IBM-supplied default ENVAR("")
IBM-supplied default ERRCOUNT(0)
IBM-supplied default ERRUNIT(6)
IBM-supplied default FILEHIST
IBM-supplied default FILETAG(NOAUTOCVT,NOAUTOTAG)
Default setting NOFLOW 
PARMLIB(CEEPRMML) HEAP(4194304,5242880,ANYWHERE,KEEP,8192,4096)
IBM-supplied default HEAPCHK(OFF,1,0,0,0,1024,0,1024,0)
IBM-supplied default HEAPPOOLS(OFF,8,10,32,10,128,10,256,10,1024,
10,2048,10,0,10,0,10,0,10,0,10,0,10,0,10)
IBM-supplied default HEAPZONES(0,ABEND,0,ABEND) IBM-supplied default INFOMSGFILTER(OFF,,,,)
IBM-supplied default INQPCOPN
IBM-supplied default INTERRUPT(OFF)
IBM-supplied default LIBSTACK(4096,4096,FREE)
IBM-supplied default MSGFILE(SYSOUT,FBA,121,0,NOENQ)
IBM-supplied default MSGQ(15)
IBM-supplied default NATLANG(ENU)
Ignored NONONIPTSTACK(See THREADSTACK)
IBM-supplied default OCSTATUS
IBM-supplied default PAGEFRAMESIZE(4K,4K,4K)
IBM-supplied default NOPC
IBM-supplied default PLITASKCOUNT(20)
IBM-supplied default POSIX(OFF)
IBM-supplied default PROFILE(OFF,"")
IBM-supplied default PRTUNIT(6)
IBM-supplied default PUNUNIT(7)
IBM-supplied default RDRUNIT(5)
IBM-supplied default RECPAD(OFF)
Invocation command RPTOPTS(ON)
SETCEE command RPTSTG(ON)
IBM-supplied default NORTEREUS
IBM-supplied default NOSIMVRD
IBM-supplied default STACK(131072,131072,ANYWHERE,KEEP,524288,131072)
IBM-supplied default STORAGE(NONE,NONE,NONE,0)
IBM-supplied default TERMTHDACT(TRACE,,96)
IBM-supplied default NOTEST(ALL,"*","PROMPT","INSPPREF")
IBM-supplied default THREADHEAP(4096,4096,ANYWHERE,KEEP)
IBM-supplied default THREADSTACK(OFF,4096,4096,ANYWHERE,KEEP,131072,
131072)
IBM-supplied default TRACE(OFF,4096,DUMP,LE=0)
IBM-supplied default TRAP(ON,SPIE)
IBM-supplied default UPSI(00000000)
IBM-supplied default NOUSRHDLR(,)
IBM-supplied default VCTRSAVE(OFF)
IBM-supplied default XPLINK(OFF)
IBM-supplied default XUFLOW(AUTO)