Abstract: A system includes processing circuits configured to run workloads, a clock generation circuit configured to generate a reference clock signal for processing circuits, and a control processing circuit configured to manage interrupts, such as interrupts relating to the reference clock signal. The processing circuits are configured to generate interrupts in response to detecting a reference clock signal error.

Abstract: A system includes processing circuits configured to run workloads, a clock generation circuit configured to generate a reference clock signal for processing circuits, and a control processing circuit configured to manage interrupts, such as interrupts relating to the reference clock signal. The processing circuits are configured to generate interrupts in response to detecting a reference clock signal error.

Abstract: An approach is provided in which a system selects a first processor as a master Time of Day (TOD) processor in a first TOD topology in response to determining that the first processor is directed connected to an oscillator. The system then assigns a second processor as an alternate master TOD processor to a second TOD topology based upon determining that the second processor is on a different node than the first processor. The system configures to the first TOD topology and, when the system detects a TOD failure, the system re-configures to the second TOD topology.

Abstract: An approach is provided in which a system selects a first processor as a master Time of Day (TOD) processor in a first TOD topology in response to determining that the first processor is directed connected to an oscillator. The system then assigns a second processor as an alternate master TOD processor to a second TOD topology based upon determining that the second processor is on a different node than the first processor. The system configures to the first TOD topology and, when the system detects a TOD failure, the system re-configures to the second TOD topology.

Abstract: An approach is provided in which a system selects a first processor as a master Time of Day (TOD) processor in a first TOD topology. The system then assigns a second processor as an alternate master TOD processor to a second TOD topology based upon determining that the second processor is on a different node than the first processor. The system configures to the first TOD topology and, when the system detects a TOD failure requiring a topology switch, the system re-configures to the second TOD topology.

Abstract: An approach is provided in which a system selects a first processor as a master Time of Day (TOD) processor in a first TOD topology. The system then assigns a second processor as an alternate master TOD processor to a second TOD topology based upon determining that the second processor is on a different node than the first processor. The system configures to the first TOD topology and, when the system detects a TOD failure requiring a topology switch, the system re-configures to the second TOD topology.

Abstract: In an approach to identifying a source of a time-of-day network error, one or more computers increment a first counter and a second counter on each of one or more computer processors simultaneously. The one or more computers determine whether an error is detected in the one or more computer processors. In response to determining the error is detected, the one or more computers freeze the second counter on the one or more computer processors associated with the detected error. The one or more computers determine on which of the one or more computer processors the second counter is frozen. The one or more computers report a time-of-day network error, where reporting a time-of-day network error includes assigning a priority to one or more sources of the time-of-day network error.

Abstract: In an approach to identifying a source of a time-of-day network error, one or more computers increment a first counter and a second counter on each of one or more computer processors simultaneously. The one or more computers determine whether an error is detected in the one or more computer processors. In response to determining the error is detected, the one or more computers freeze the second counter on the one or more computer processors associated with the detected error. The one or more computers determine on which of the one or more computer processors the second counter is frozen. The one or more computers report a time-of-day network error, where reporting a time-of-day network error includes assigning a priority to one or more sources of the time-of-day network error.

Abstract: An approach is provided in which a system selects a first processor as a master Time of Day (TOD) processor in a first TOD topology. The system then assigns a second processor as an alternate master TOD processor to a second TOD topology based upon determining that the second processor is on a different node than the first processor. The system configures to the first TOD topology and, when the system detects a TOD failure requiring a topology switch, the system re-configures to the second TOD topology.

Abstract: An approach is provided in which a system selects a first processor as a master Time of Day (TOD) processor in a first TOD topology. The system then assigns a second processor as an alternate master TOD processor to a second TOD topology based upon determining that the second processor is on a different node than the first processor. The system configures to the first TOD topology and, when the system detects a TOD failure requiring a topology switch, the system re-configures to the second TOD topology.

Abstract: In an approach to identifying a source of a time-of-day network error, one or more computers increment a first counter and a second counter on each of one or more computer processors simultaneously. The one or more computers determine whether an error is detected in the one or more computer processors. In response to determining the error is detected, the one or more computers freeze the second counter on the one or more computer processors associated with the detected error. The one or more computers determine on which of the one or more computer processors the second counter is frozen. The one or more computers report a time-of-day network error, where reporting a time-of-day network error includes assigning a priority to one or more sources of the time-of-day network error.

Abstract: In an approach to identifying a source of a time-of-day network error, one or more computers increment a first counter and a second counter on each of one or more computer processors simultaneously. The one or more computers determine whether an error is detected in the one or more computer processors. In response to determining the error is detected, the one or more computers freeze the second counter on the one or more computer processors associated with the detected error. The one or more computers determine on which of the one or more computer processors the second counter is frozen. The one or more computers report a time-of-day network error, where reporting a time-of-day network error includes assigning a priority to one or more sources of the time-of-day network error.