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This tutorial presents the details of the interconnection network utilized in many high performance computing (HPC) systems today. “InfiniBand” is the hardware interconnect utilized by over 35% of the top 500 supercomputers in the world as of June, 2017. “Verbs” is the term used for both the semantic description of the interface in the InfiniBand architecture specifications, and the name used for...
The InfiniBand Congestion Control mechanism (IB CC) is able to reduce the negative consequences of congestion in many situations. However, its effectiveness depends on a set of parameters that must be set by administrators. If the parameters are not appropriately configured, IB CC could negatively impact network performance. Additionally, no one has been able to find a universal parameter setting...
The InfiniBand Congestion Control (IB CC) mechanism is able to reduce the negative congestion consequences in many situations. However, its effectiveness depends on a set of configurable parameters that must be adjusted by users to tackle congestion. If the parameters are not appropriately configured, IB CC could negatively impact the network performance and production jobs. Additionally, the IB CC...
The InfiniBand Congestion Control (IB CC) mechanism is able to reduce the negative congestion consequences in many situations. However, its effectiveness depends on a set of configurable parameters that must be adjusted by users to tackle congestion. If the parameters are not appropriately configured, IB CC could negatively impact the network performance and production jobs. Additionally, the IB CC...
The InfiniBand Congestion Control (CC) mechanism is able to reduce congestion and improve performance in many situations. In this paper we study the characteristics of congestion in InfiniBand by monitoring and analyzing the CC mechanism with a hardware analyzer. To the best of our knowledge, this is the first paper that presents experience with, and analysis of, the InfiniBand CC with such a tool...
This deep space sensor network based on DTN is an important research in modern deep space communications technologies. Bundle layer plays a key role in the network. How Bundle layer can provide services for network more rationally and efficiently is an important influencing factor to improve and enhance the network performance. This paper proposes special network architecture for this DTN-based network...
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