US 2010/0162252 A1Published application

System and method for shifting workloads across platform in a hybrid system

AssigneeInternational Business Machines Corporation

InventorUtz Bacher

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Abstract

A system and associated method for shifting workloads across platform in a hybrid system. A first kernel governing a first platform of the hybrid system starts a process that is executable in a second platform of the hybrid system. The first kernel requests a second kernel governing the second platform to create a duplicate process of the process such that the process is executed in the second platform. The process represents the duplicate process in the first platform without consuming clock cycles of the first platform. During an execution of the duplicate process in the second platform, the first kernel services an I/O request of the duplicate process that is transferred from the second kernel to the first kernel. When the duplicate process is terminated, the process in the first platform is removed first before the duplicate process releases resources.

Claims20

Dependent claims

A method for shifting workloads across platform in a hybrid system, the method comprising:

starting a process in a first platform of the hybrid system, wherein the process is executable in the second platform of the hybrid system, wherein a first kernel governs the first platform and a second kernel governs the second platform;
detecting that the process is not executable in the first platform;
requesting the second kernel to create, in the second platform, a duplicate process of the process in the first platform and receiving a notification that the duplicate process had been successfully created in the second platform from the second kernel;
stopping scheduling the process in the first platform responsive to receiving a signal from the second kernel indicating that the second platform schedules and executes the duplicate process in the second platform;
terminating the process in the first platform upon receiving an event trigger to terminate the process;
and
sending the second kernel a termination signal indicating that the process in the first platform has been removed,
wherein said starting, said detecting, said requesting, said stopping, said terminating and said sending are performed by the first kernel.

5 more elements

A computer program product, comprising a computer usable storage medium having a computer readable program code embodied therein, said computer readable program code containing instructions that when executed by a processor of a computer system implement a method for shifting workloads across platform in a hybrid system, the method comprising:

starting a process in a first platform of the hybrid system, wherein the process is executable in the second platform of the hybrid system, wherein a first kernel governs the first platform and a second kernel governs the second platform;
detecting that the process is not executable in the first platform;
requesting the second kernel to create, in the second platform, a duplicate process of the process in the first platform and receiving a notification that the duplicate process had been successfully created in the second platform from the second kernel;
stopping scheduling the process in the first platform responsive to receiving a signal from the second kernel indicating that the second platform schedules and executes the duplicate process in the second platform;
terminating the process in the first platform upon receiving an event trigger to terminate the process;
and
sending the second kernel a termination signal indicating that the process in the first platform has been removed,
wherein said starting, said detecting, said requesting, said stopping, said terminating and said sending are performed by the first kernel.

5 more elements

A computer system comprising a processor and a computer readable memory unit coupled to the processor, said memory unit containing instructions that when executed by the processor implement a method for shifting workloads across platform in a hybrid system, the method comprising:

starting a process in a first platform of the hybrid system, wherein the process is executable in the second platform of the hybrid system, wherein a first kernel governs the first platform and a second kernel governs the second platform;
detecting that the process is not executable in the first platform;
requesting the second kernel to create, in the second platform, a duplicate process of the process in the first platform and receiving a notification that the duplicate process had been successfully created in the second platform from the second kernel;
stopping scheduling the process in the first platform responsive to receiving a signal from the second kernel indicating that the second platform schedules and executes the duplicate process in the second platform;
terminating the process in the first platform upon receiving an event trigger to terminate the process;
and
sending the second kernel a termination signal indicating that the process in the first platform has been removed,
wherein said starting, said detecting, said requesting, said stopping, said terminating and said sending are performed by the first kernel.

5 more elements

Dependencies are inferred from the claim text.