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- QsNet abstract "QsNet is a high speed interconnect designed by Quadrics used in HPC clusters, particularly Linux Beowulf Clusters. Although it can be used with TCP/IP; like SCI, Myrinet and Infiniband it is usually used with a communication API such as MPI or SHMEM called from a parallel program.The interconnect consists of a PCI card in each compute node and one or more dedicated switch chassis. These are connected with a copper cables. Within the switch chassis are a number of line cards that carry Elite switch ASICs. These are internally linked to form a fat tree topology. Like other interconnects such as Myrinet very large systems can be built by using multiple switch chassis arranged as spine (top-level) and leaf (node-level) switches. Such systems are usually called federated networks.As of 2003, there are two generations of QsNet. The older QsNetI was launched in 1998 and used PCI 66-64 cards that had 'elan3' Custom ASIC on them. These gave an MPI bandwidth of around 350 Mbyte/s unidirectional with 5us latency. QsNet II was launched in 2003. It used PCI-X 133 MHz cards that carry 'elan4' ASICs. These gave an MPI bandwidth of 912 Mbyte/s and MPI latency starting from 1.22 μs, performance depends on platform used.In 2004 Quadrics started releasing small to medium switch stand-alone switch configurations called QsNetII E-Series, these configurations range from the 8 to the 128-way systems.".
- QsNet wikiPageExternalLink 3A912204F260613680256DD9005122C7.
- QsNet wikiPageExternalLink 476637E138359A1C80256E6A0059B85B.
- QsNet wikiPageExternalLink www.quadrics.com.
- QsNet wikiPageID "471890".
- QsNet wikiPageRevisionID "558730556".
- QsNet hasPhotoCollection QsNet.
- QsNet subject Category:Computer_buses.
- QsNet type Abstraction100002137.
- QsNet type Arrangement105726596.
- QsNet type BusTopology105730591.
- QsNet type Cognition100023271.
- QsNet type ComputerBuses.
- QsNet type Configuration105731779.
- QsNet type Design105728678.
- QsNet type PsychologicalFeature100023100.
- QsNet type Structure105726345.
- QsNet type Topology105730365.
- QsNet comment "QsNet is a high speed interconnect designed by Quadrics used in HPC clusters, particularly Linux Beowulf Clusters. Although it can be used with TCP/IP; like SCI, Myrinet and Infiniband it is usually used with a communication API such as MPI or SHMEM called from a parallel program.The interconnect consists of a PCI card in each compute node and one or more dedicated switch chassis. These are connected with a copper cables.".
- QsNet label "QsNet".
- QsNet label "QsNet".
- QsNet sameAs m.02dl6z.
- QsNet sameAs Q4047740.
- QsNet sameAs Q4047740.
- QsNet sameAs QsNet.
- QsNet wasDerivedFrom QsNet?oldid=558730556.
- QsNet isPrimaryTopicOf QsNet.