Abstract: A host system compiles a set of local programs which are provided over a network to a plurality of subsystems. By defining the synchronisation activity on the host, and then providing that information to the subsystems, the host can service a large number of subsystems. The defined synchronisation activity includes defining the synchronisation groups between which synchronisation barriers occur and the points during program execution at which data exchange with the host occurs. Defining synchronisation activity between the subsystems allows a large number of subsystems to be connecting whilst minimising the required exchanges with the host.

Abstract: A system and method can support virtual machine live migration in a network. A virtual switch can be associated with a plurality of virtual functions (VFs), and wherein each said virtual function (VF) is associated with a separate virtual interface (VI) space. At least one virtual machine that is attached with a said virtual function (VF) can be associated with a virtual interface (VI), e.g. a queue pair (QP) in an Infiniband (IB) architecture. Furthermore, said at least one virtual machine operates to perform a live migration from a first host to a second host with said virtual function (VF) attached.

Abstract: A system and method can support virtual machine live migration in a network. A virtual switch can be associated with a plurality of virtual functions (VFs), and wherein each said virtual function (VF) is associated with a separate virtual interface (VI) space. At least one virtual machine that is attached with a said virtual function (VF) can be associated with a virtual interface (VI), e.g. a queue pair (QP) in an Infiniband (IB) architecture. Furthermore, said at least one virtual machine operates to perform a live migration from a first host to a second host with said virtual function (VF) attached.

Abstract: A system and method can support virtual machine live migration in a network. A virtual switch can be associated with a plurality of virtual functions (VFs), and wherein each said virtual function (VF) is associated with a separate virtual interface (VI) space. At least one virtual machine that is attached with a said virtual function (VF) can be associated with a virtual interface (VI), e.g. a queue pair (QP) in an Infiniband (IB) architecture. Furthermore, said at least one virtual machine operates to perform a live migration from a first host to a second host with said virtual function (VF) attached.

Abstract: A system and method can support virtual machine live migration in a network. A fabric adaptor can be associated with a plurality of virtual host channel adapters (vHCAs), and wherein each said virtual host channel adapter (vHCA) is associated with a separate queue pair (QP) space. At least one virtual machine operates to perform a live migration from a first host to a second host, wherein said at least one virtual machine is attached with a said virtual host channel adapter (vHCA) that is associated with a queue pair (QP) in a said queue pair (QP) space, and wherein said queue pair (QP) operates to signal a peer QP about the live migration and provide said peer QP with address information after migration.

Abstract: A system and method can support virtual machine live migration in a network. A plurality of hosts can be interconnected via the network. Each host contains one or more virtual machines. At least one virtual machine operates to perform a live migration from a first host to a second host. The virtual function, which is attached to a queue pair (QP), can be supported by a host channel adapter (HCA) on a host.

Abstract: A system and method can alleviate congestion in a middleware machine environment with a plurality of switches in a fat-tree topology. The middleware machine environment can support a plurality of end nodes and allows for generating a virtual lane assignment for every pair of source end node and destination end node. Then, the packet flows from a source end node to different destination end nodes sharing a physical link can be distributed across different virtual lanes in order to avoid the head-of-line (HOL) blocking.

Abstract: A system and method can support a signaling method in a virtualization environment. The management domain on one or more physical servers can be provided with a mapping table. The management domain operates to receive a message from the subnet administrator, wherein the message indicates a path record change event, such as a virtual machine (VM) migration event in the network. Then, the management domain can forward the received message to one or more virtual machine associated with the management domain based on the mapping table.

Abstract: A system and method can prevent traffic congestion in a middleware machine environment with a plurality of switches in a fat-tree topology. A subnet manager can sweep a subnet in the middleware machine environment to discover changes and maintain the subnet fully connected. A performance manager can retrieve performance and error-related information from one or more performance management agents that are associated with one or more components in the subnet. Then, a host can dynamically reconfigure one or more virtual lanes in order to improve network performances.

Abstract: A system and method can provide fault tolerance in a middleware machine environment. A subnet manager can determine whether there is a path record change when a fault occurs in the middleware machine environment. Furthermore, the subnet manager can signal a dynamic reconfiguration event to at least one host in the middleware machine environment. The at least one host can send a message to the subnet manager to query for a latest path record. Then, the subnet manager can provide a latest path record to the at least one host.

Abstract: A system and method can support virtual machine live migration in a network. A fabric adaptor can be associated with a plurality of virtual host channel adapters (vHCAs), and wherein each said virtual host channel adapter (vHCA) is associated with a separate queue pair (QP) space. At least one virtual machine operates to perform a live migration from a first host to a second host, wherein said at least one virtual machine is attached with a said virtual host channel adapter (vHCA) that is associated with a queue pair (QP) in a said queue pair (QP) space, and wherein said queue pair (QP) operates to signal a peer QP about the live migration and provide said peer QP with address information after migration.

Abstract: A system and method can support a signaling method in a virtualization environment. The management domain on one or more physical servers can be provided with a mapping table. The management domain operates to receive a message from the subnet administrator, wherein the message indicates a path record change event, such as a virtual machine (VM) migration event in the network. Then, the management domain can forward the received message to one or more virtual machine associated with the management domain based on the mapping table.

Abstract: A system and method can support virtual machine live migration in a network. A virtual switch can be associated with a plurality of virtual functions (VFs), and wherein each said virtual function (VF) is associated with a separate virtual interface (VI) space. At least one virtual machine that is attached with a said virtual function (VF) can be associated with a virtual interface (VI), e.g. a queue pair (QP) in an Infiniband (IB) architecture. Furthermore, said at least one virtual machine operates to perform a live migration from a first host to a second host with said virtual function (VF) attached.

Abstract: A system and method can support virtual machine live migration in a network. A plurality of hosts can be interconnected via the network. Each host contains one or more virtual machines. At least one virtual machine operates to perform a live migration from a first host to a second host. The virtual function, which is attached to a queue pair (QP), can be supported by a host channel adapter (HCA) on a host.