Dynamic resource allocation, particularly in the form of processor partitioning and scheduling, is an important factor in achieving good utilization and high performance in multiprocessor systems. On existing systems, however, operating systems do not have good resource allocation and scheduling capabilities because of lack of finer control over executing applications. Absence of such system capabilities also makes it difficult for application to efficiently manage their resource requirements. To overcome these shortcomings, we are developing a Distributed Resource Management System (DRMS) for dynamic allocation of resources during the execution of applications. Under DRMS, applications and the system interact through well defined interfaces to exchange information and to execute system specified commands. These interactions provide a means for applications to manage their resource requirements and for the system to manipulate resources allocated to competing jobs in the system. To minimize the programming burden on application developers, DRMS takes care of any necessary run-time program migration and data redistributions. (ScalParSys)
By: Jose E. Moreira, Vijay K. Naik and Ravi B. Konuru
Published in: RC20257 in 1995
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