gtps1m42System Macros

PAUSC-Control System MP Environment

Use this system macro to enable:


Required Authorizations
Key0 Restricted System Common Storage

X X

Format




label
A symbolic name can be assigned to the macro statement.

FUNC
Specify one of the following:

BEGIN
Establish a UP environment.

END
Reestablish the MP environment.

SYNC
Invoke the TOD synchronization services. The TPF system must be in a UP environment at this time.

RQST
The RQST parameter is required when the FUNC=SYNC is specified.

VAL
Determine and save status of all TOD clocks in the CPC. Restart any stopped clocks.

SET
Synchronize the main I-stream TOD clock to a requested time. Synchronize all other I-stream TOD clocks to the main I-stream clock value.

Notes:

  1. If the TPF system is in a loosely coupled environment, the main I-stream is synchronized to the external source of clock pulses. This synchronization is via the TOD RPQ or the sysplex timer (STR). All other I-streams are synchronized to the main I-stream. If the TPF system is not in a loosely coupled environment, then the main I-stream is either synchronized to a sysplex timer or it remains in local mode. All other I-streams are synchronized to the main I-stream.

  2. The IBM 9037 Sysplex Timer is part of IBM Enterprise Systems Connection (ESCON).

SSYN
Disable sync checks on all I-streams and for the TOD RPQ sets the sync selection register on the main I-stream.

Note:
If the TPF system is in a loosely coupled environment with the High Performance Option (HPO) feature installed, all I-streams are synchronized to the external source of clock pulses (TOD RPQ or STR). If the TPF system is not in a loosely coupled environment with the HPO feature installed, then the main I-stream remains in local mode, providing clock synchronization pulses for the other I-streams.

Entry Requirements

Return Conditions

Programming Considerations

Examples

None.