Abstract: A method, data processing system and program product utilize dynamic logical storage volume sizing for burst buffers or other local storage for computing nodes to optimize job stage in, execution and/or stage out.

Abstract: A method, data processing system and program product utilize dynamic logical storage volume sizing for burst buffers or other local storage for computing nodes to optimize job stage in, execution and/or stage out.

Abstract: A distributed network switch includes multiple switch modules connected by one or more physical cables. One switch module may determine which connector port of a remote switch module is connected by physical cable based on information received from the remote switch module, including link identifiers, and further based on a physical topology predetermined about the type of remote switch module.

Abstract: A distributed network switch includes multiple switch modules connected by one or more physical cables. One switch module may determine which connector port of a remote switch module is connected by physical cable based on information received from the remote switch module, including link identifiers, and further based on a physical topology predetermined about the type of remote switch module.

Abstract: The different switch modules making up a distributed virtual switch may route configuration commands for hardware resources to different modules within the distributed switch using a distribution and routing layer. At least one of the switch modules maintains a routing table that defines which switch modules are responsible for which hardware resources. The switch module uses the routing tables to forward the commands on the distribution and routing layer to the responsible switch module which then ensures that the relevant hardware resources are configured.

Abstract: The different switch modules making up a distributed virtual switch may route configuration commands for hardware resources to different modules within the distributed switch using a distribution and routing layer. At least one of the switch modules maintains a routing table that defines which switch modules are responsible for which hardware resources. The switch module uses the routing tables to forward the commands on the distribution and routing layer to the responsible switch module which then ensures that the relevant hardware resources are configured.

Abstract: A distributed network switch includes multiple switch modules connected by one or more physical cables. One switch module may determine which connector port of a remote switch module is connected by physical cable based on information received from the remote switch module, including link identifiers, and further based on a physical topology predetermined about the type of remote switch module.

Abstract: A distributed network switch includes multiple switch modules connected by one or more physical cables. One switch module may determine which connector port of a remote switch module is connected by physical cable based on information received from the remote switch module, including link identifiers, and further based on a physical topology predetermined about the type of remote switch module.

Abstract: Debugging of code of a computer program is facilitated by having a plurality of internal breakpoints associated with lines of code previously set by a processor, during a debugging session, while implementing one or more step-type operations. During execution of another operation, internal breakpoints are disabled as encountered and deemed unnecessary to completion of the another operation. A count of a number of interrupts of one or more interrupt-types experienced during execution of the another operation is maintained, and responsive to the count exceeding a threshold, the disabling is varied to remove at least N internal breakpoints responsive to encountering an internal breakpoint during execution of the another operation deemed unnecessary to completion of the another operation, where N?2.

Abstract: Debugging of code of a computer program is facilitated by implementing a step-type operation using internal breakpoints to ensure debugger control of the code. During a debugging session, a step-type operation is implemented by setting active internal breakpoints on every line of code of every routine currently on the call stack referenced by the processor and on entry points of the code being debugged, and subsequently leaving in place, upon completion of the step-type operation, active internal breakpoints. Subsequent to implementing the step-type operation any active internal breakpoints encountered during execution of one or more other operations of the code and deemed unnecessary to completion of the other operation(s) are disabled, and the location of any internal breakpoints disabled during execution of the one or more other operations are tracked in a data structure(s) for subsequent use in reestablishing needed internal breakpoints for implementation of another step-type operation.

Abstract: Debugging of code of a computer program is facilitated by implementing, during a debugging session, a step-type operation by machine instruction stepping through the code, and concurrent therewith, setting up breakpoints to perform the step-type operation. Responsive to the machine instruction stepping reaching a next debuggable line of code prior to completion of setup of breakpoints to perform the step-type operation, the machine instruction stepping is discontinued, and the setting up of breakpoints to perform the step-type operation is discontinued. Alternatively, responsive to completing setup of the breakpoints to perform the step-type operation prior to machine instruction stepping reaching the next debuggable line of code, the machine instruction stepping is discontinued, and the code is executed to perform the step-type operation using the set breakpoints.

Abstract: The different switch modules making up a distributed virtual switch may route configuration commands for hardware resources to different modules within the distributed switch using a distribution and routing layer. At least one of the switch modules maintains a routing table that defines which switch modules are responsible for which hardware resources. The switch module uses the routing tables to forward the commands on the distribution and routing layer to the responsible switch module which then ensures that the relevant hardware resources are configured.

Abstract: Debugging of code of a computer program is facilitated by implementing, during a debugging session, a step-type operation by machine instruction stepping through the code, and concurrent therewith, setting up breakpoints to perform the step-type operation. Responsive to the machine instruction stepping reaching a next debuggable line of code prior to completion of setup of breakpoints to perform the step-type operation, the machine instruction stepping is discontinued, and the setting up of breakpoints to perform the step-type operation is discontinued. Alternatively, responsive to completing setup of the breakpoints to perform the step-type operation prior to machine instruction stepping reaching the next debuggable line of code, the machine instruction stepping is discontinued, and the code is executed to perform the step-type operation using the set breakpoints.

Abstract: Debugging of code of a computer program is facilitated by implementing a step-type operation using internal breakpoints to ensure debugger control of the code. During a debugging session, a step-type operation is implemented by setting active internal breakpoints on every line of code of every routine currently on the call stack referenced by the processor and on entry points of the code being debugged, and subsequently leaving in place, upon completion of the step-type operation, active internal breakpoints. Subsequent to implementing the step-type operation any active internal breakpoints encountered during execution of one or more other operations of the code and deemed unnecessary to completion of the other operation(s) are disabled, and the location of any internal breakpoints disabled during execution of the one or more other operations are tracked in a data structure(s) for subsequent use in reestablishing needed internal breakpoints for implementation of another step-type operation.

Abstract: Debugging of code of a computer program is facilitated by having a plurality of internal breakpoints associated with lines of code previously set by a processor, during a debugging session, while implementing one or more step-type operations. During execution of another operation, internal breakpoints are disabled as encountered and deemed unnecessary to completion of the another operation. A count of a number of interrupts of one or more interrupt-types experienced during execution of the another operation is maintained, and responsive to the count exceeding a threshold, the disabling is varied to remove at least N internal breakpoints responsive to encountering an internal breakpoint during execution of the another operation deemed unnecessary to completion of the another operation, where N?2.

Abstract: In an embodiment, a plurality of halted addresses of halted instructions are determined, at which execution of a plurality of threads of a program are halted. A respective next sequential instruction is computed, which is in the plurality of threads following the plurality of halted instructions. A respective next sequential breakpoint at the respective next sequential instruction in the plurality of threads is set. Execution of the plurality of threads is started after the setting the respective next sequential breakpoint. In response to the execution of each of the plurality of threads encountering the respective next sequential breakpoint and all of the plurality of threads halting, trace data is saved that describes the execution of each of the plurality of threads.

Abstract: System control over the logging of objects in order to meet the user specified recovery requirements. Under the fixed recovery time environment, the user chooses a length of time to be spent on object recovery, and the system dynamically manages the logging of objects to meet this time. The shorter the time the user chooses, the more objects the system will log, and the more performance degradation there will be as a result of the logging at run-time. The user may partition storage into Auxiliary Storage Pools (ASPs), which are groups of non-volatile storage, and then specify the recovery time on a per ASP basis. Under the minimal impact environment, the system dynamically manages the objects to be logged such that the object logging has a minimal impact on run-time performance.

Abstract: System control over the logging of objects in order to meet the user specified recovery requirements. Under the fixed recovery time environment, the user chooses a length of time to be spent on object recovery, and the system dynamically manages the logging of objects to meet this time. The shorter the time the user chooses, the more objects the system will log, and the more performance degradation there will be as a result of the logging at run-time. The user may partition storage into Auxiliary Storage Pools (ASPs), which are groups of non-volatile storage, and then specify the recovery time on a per ASP basis. Under the minimal impact environment, the system dynamically manages the objects to be logged such that the object logging has a minimal impact on run-time performance.