International Business Machines Corporation

Carlos P Sosa

Arthur J Meyer, Iii

Rashed Ferdous

Punit B Shah

Francis Michael Bartucca

Billy R Robinson

Embodiments of the invention relate to dynamically assessing and managing probing of a system for resource availability. A predicted resource usage pattern is acquired, and critical points in the pattern pertaining to predicted changes in resource consumption are identified. Probing the system for resource availability is limited to the identified critical points, or to real-time changes in the resource usage pattern.

Adaptation of probing frequency for resource consumption

Techniques used to enhance the execution of long-running or complex software application instances and jobs on computing systems. In one embodiment, inadequate system resources and failure of a job execution on the computing system may be predicted. A determination may be made as to whether inadequate resources exist prior to execution of the job, and resource requirements may be monitored to detect in real time if inadequate resources will be encountered during the job execution for cases where, for example, resource availability has unexpectedly decreased. If a resource deficiency is predicted on the executing computer system, the job may be paused and corrective action may be taken or a user may be alerted. The job may resume after the resource deficiency is met. Additional embodiments may integrate resource monitoring with the adaptive selection of a computer system or application execution environment based on resource capability predictions and benchmarks.

Monitoring real-time computing resources for predicted resource deficiency

Techniques used to enhance the execution of long-running or complex software application instances and jobs on computing systems are disclosed herein. In one embodiment, a real time, self-predicting job resource monitor is employed to predict inadequate system resources on the computing system and failure of a job execution on the computing system. This monitor may not only determine if inadequate resources exist prior to execution of the job, but may also detect in real time if inadequate resources will be encountered during the execution of the job for cases where resource availability has unexpectedly decreased. If a resource deficiency is predicted on the executing computer system, the system may pause the job and automatically take corrective action or alert a user. The job may resume after the resource deficiency is met. Additional embodiments also integrate this resource monitoring capability with the adaptive selection of a computer system or application execution environment based on resource capability predictions and benchmarks.

Real-time monitoring of job resource consumption and prediction of resource deficiency based on future availability

An automated resource allocation technique for scheduling a batch computer job in a multi-computer system environment. According to example embodiments, resource allocation processing may be performed when receiving a batch computer job that needs to be run by a software application executable on more than one computing system in the multi-computer system environment. The job may be submitted for pre-processing analysis by the software application. A pre-processing analysis result comprising job evaluation information may be received from the software application and the result may be evaluated to select a computing system in the multi-computer system environment that is capable of executing the application to run the job. The job may be submitted to the selected computing system to have the software application run the job to completion.

Resource allocator with knowledge-based optimization

A manage-analyze-plan-execute (MAPE) loop is performed on a system-wide basis in relation to subsystems of a computing system based on one or more parameters. Performing the MAPE loop results in a performance level at which each subsystem is to operate to conserve energy utilization on the system-wide basis such that the computing system still satisfies the parameters. The subsystem the performance level at which each subsystem is to operate is communicated to the subsystem. Each subsystem operates at the performance level communicated to the subsystem.

MAPE loop performance on system-wide basis

A compiler utility assigns memory locations to alias-free variables within a computer program. The compiler utility allocates memory keys for the alias-free variables, such that access to the memory locations of the alias-free variables is granted to blocks of code that have knowledge of the memory keys. In response to a command by the user, the compiler generates code to detect violations of alias assumptions during execution of the computer program. During the compiling process, the compiler adds the generated code for detecting violations of alias assumptions to the compiled computer program.

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Eagan, MN, United States of America

Carlos P Sosa