Tunghai University

Chao-Tung Yang

Hsiang-Yao Cheng

Kuan-Chieh Wang

Ming-Feng Yang

A method of dynamic resource allocation for a virtual machine cluster is to calculate the resource usage weight of the respective virtual machine, the resource usage weight of the respective physical machine, and the average resource usage weight of the physical machines, to pick the physical machine with the greatest resource usage weight as the migration source machine, to pick the physical machine with the least resource usage weight as the migration object machine, and to move the virtual machine in the migration source machine with the resource usage weight thereof being closest to the migration difference value to the migration object machine to achieve the effect of load balancing.

Method of dynamic resource allocation for a virtual machine cluster

A method for managing green power determines if how many physical machines should run or be shut off with the gross occupied resource weight ratio of the virtual machine cluster. The standby physical machine in the non-running physical machines is elected and woke up to join as one of the running physical machines; one of the running physical machines is elected as a migration physical machine with the virtual machines therein being moved to other running physical machines, and then shut off. The resource allocation process is conducted to distribute loads of the running physical machines such that the total numbers of the running physical machines are capable of being dispatched flexibly to achieve the object of green power management.

Method for managing green power of a virtual machine cluster

An anticipative recursively-adjusting co-allocation mechanism (ARAM) includes the steps of: measuring a transmission bandwidth of a candidate server by a bandwidth measurement module; referring to the transmission bandwidth to calculate a recursive parameter value, and calculating a desired allocating file size of present round according to the recursive parameter value and an unassigned file size; allocating the desired allocating file size to the candidate server according to the transmission bandwidth and a transmission completion percentage of the candidate server at a previous round; performing the transmission and calculating the transmission completion percentage of each candidate server; examining the transmission completion percentage of the candidate sever; and examining whether or not an allocation of files is completed if any candidate server has completed a transmission, and looping to the next round if the file allocation has not been completed so as to enhance the data transmission performance effectively.

Growing community of inventors

Taichung, Taiwan

Chao-Tung Yang