System Generation Compiler › Execution Modes › Batch System Generation

Batch System Generation

Running the Compiler in Batch Mode

When executing in batch mode, the system generation compiler reads source statements from an input file and writes all output except punched definitions to the CA IDMS/DC SYSGEN Compiler Activity List. The compiler writes punched definitions either to the SYSPCH file or to a data dictionary module.

The batch compiler can run either under the central version or in local mode. To ensure data integrity when using local mode operations, you should either back up the data dictionary before executing the system generation compiler or perform journaling during compiler execution.

Running in Local Mode

When running in local mode, the compiler cannot ready in an update usage mode any areas already held by a DC/UCF system in an update usage mode. An update usage mode is required for:

• The DDLDML area when the source input includes an ADD, MODIFY, DELETE, VALIDATE, or GENERATE statement.
• The DDLDCLOD area when the source input includes a GENERATE statement for a system that includes an added or modified resource table (as a result of NODE and RESOURCE TABLE statements).

JCL used to execute the system generation compiler in batch mode is presented next for z/OS, z/VSE, and z/VM systems, followed by a sample CA IDMS/DC SYSGEN Compiler Activity List.