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The advent of many core era breaks the performance wall but it causes severe energy consumption. NVRAM as a main memory can be a good solution to reduce energy consumption due to large size of DRAM. In this paper, we propose MN-MATE, a novel architecture and management techniques for resource allocation of a number of cores and large size of DRAM and NVRAM. In MN-MATE, a hyper visor partitions and...
In cluster computers, RAM memory is spread among the motherboards hosting the running applications. In these systems, it is common to constrain the memory address space of a given processor to the local motherboard. Constraining the system in this way is much cheaper than using a full-fledged shared memory implementation among motherboards. However, in this case, memory usage might widely differ among...
Process placement is a technique widely used on parallel machines with heterogeneous interconnects to reduce the overall communication time. For instance, two processes which communicate frequently are mapped close to each other. Finding the optimal mapping between threads and cores in a shared-memory environment (for example, OpenMP and Pthreads) is an even more complex task due to implicit communication...
To maintain very large amount of increasing dataset, it is critical to enforce the data migration policies across different levels of storage devices. The challenge is to achieve both low storage cost and response efficiency. In this paper, we will investigate the factors for this problem, then adapt dynamic programming technique, and design appropriate ECA trigger rules. From the conducted experiments,...
This paper focuses on large graph processing based on the remote memory system. Using our remote memory system enables applications to deal with large data sets, especially graph data, which do not fit into the machines main memory. Although recent dramatic increases in DRAM capacity now allow us to build inexpensive computers with very large amounts of main memory, the rise in brand-new Internet...
Replication is a widely used technique in unstructured overlays to improve the content availability or the system performance. Among the prior work on replication, a fundamental question is often addressed: how many replicas should be kept for each data item if given the fixed request rates and the limited storage capability? The Square-Root Replication, in which the replica number of an item is proportional...
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