Use the IGZWARRE sample job to change the behavior of COBOL's runtime environment. You must modify the IGZRREOP macro invocation, depending on the function that you want.

To run with VS COBOL II and OS/VS COBOL runtime compatibility mode (that is, the user has control of program checks that occur when the COBOL runtime environment is dormant, resulting in an additional performance cost), use IGZRREOP REUSENV=COMPAT

To run with optimum performance (for example Language Environment intercepts all program checks that occur when the COBOL runtime environment is dormant and converts them to a 4036 abend, resulting in improved performance), use IGZRREOP REUSENV=OPT

To disable nested enclave support in the reusable environment, use IGZRREOP NESTENC=NO

To enable nested enclave support in the reusable environment, use IGZRREOP NESTENC=YES

To change the amount of data dumped for BLL cells in a CEEDUMP, use IGZRREOP DUMPBLL=((suboption)). Specify either or both of the suboption values (ACTIVE,nnnn) and (INACTIVE,nnnn). The value must be between 0 and 4096 and a multiple of 32 to replace nnnn.