

FOLLOWUS
1.School of Computer Science and Engineering, Xi'an University of Technology, Xi'an 710048, China
2.State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710048, China
[ "Jing ZHANG, ZhangJing@xaut.edu.cn" ]
Xiao-jun CHEN, army.net@163.com
[ "Jun-huai LI, lijunhuai@xaut.edu.cn" ]
[ "Xiang LI, lixiang@163.com" ]
Received:27 July 2011,
Revised:2012-;2-;9,
Published:2012-03
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Jing ZHANG, Xiao-jun CHEN, Jun-huai LI, et al. Task mapper and application-aware virtual machine scheduler oriented for parallel computing[J]. Frontiers of Information Technology & Electronic Engineering, 2012, 13(3): 155-177.
Jing ZHANG, Xiao-jun CHEN, Jun-huai LI, et al. Task mapper and application-aware virtual machine scheduler oriented for parallel computing[J]. Frontiers of Information Technology & Electronic Engineering, 2012, 13(3): 155-177. DOI: 10.1631/jzus.C1100217.
We design a task mapper TPCM for assigning tasks to virtual machines
and an application-aware virtual machine scheduler TPCS oriented for parallel computing to achieve a high performance in virtual computing systems. To solve the problem of mapping tasks to virtual machines
a virtual machine mapping algorithm (VMMA) in TPCM is presented to achieve load balance in a cluster. Based on such mapping results
TPCS is constructed including three components: a middleware supporting an application-driven scheduling
a device driver in the guest OS kernel
and a virtual machine scheduling algorithm. These components are implemented in the user space
guest OS
and the CPU virtualization subsystem of the Xen hypervisor
respectively. In TPCS
the progress statuses of tasks are transmitted to the underlying kernel from the user space
thus enabling virtual machine scheduling policy to schedule based on the progress of tasks. This policy aims to exchange completion time of tasks for resource utilization. Experimental results show that TPCM can mine the parallelism among tasks to implement the mapping from tasks to virtual machines based on the relations among subtasks. The TPCS scheduler can complete the tasks in a shorter time than can Credit and other schedulers
because it uses task progress to ensure that the tasks in virtual machines complete simultaneously
thereby reducing the time spent in pending
synchronization
communication
and switching. Therefore
parallel tasks can collaborate with each other to achieve higher resource utilization and lower overheads. We conclude that the TPCS scheduler can overcome the shortcomings of present algorithms in perceiving the progress of tasks
making it better than schedulers currently used in parallel computing.
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