Interrupts and Interrupt Handlers
... Can run concurrently on any CPU (even two of same type) Highly threaded with per-cpu data, time-critical, high-frequency uses (Net) Registered statically at compile-time. ...
... Can run concurrently on any CPU (even two of same type) Highly threaded with per-cpu data, time-critical, high-frequency uses (Net) Registered statically at compile-time. ...
mca4_os_mk - Nano Infotech
... specific services provided will differ from one operating system to another, but there are some common classes that we can identify. These operating system services are provided for the convenience of the programmer, to make the programming task easier. Some of these services are listed below: 1.Pro ...
... specific services provided will differ from one operating system to another, but there are some common classes that we can identify. These operating system services are provided for the convenience of the programmer, to make the programming task easier. Some of these services are listed below: 1.Pro ...
Introduction - Bapatla Engineering College
... Different clients may mount the servers in different places. Kyung Hee University ...
... Different clients may mount the servers in different places. Kyung Hee University ...
A Comparison and Critique of Eucalyptus, OpenNebula and Nimbus
... there is a huge amount of customizability that is permitted in OpenNebula. Specifically, the idea of OpenNebula is a pure private cloud, in which users actually log into the head node to access cloud functions. This interface is a wrapper around an XML-RPC interface, which can also be used directly. ...
... there is a huge amount of customizability that is permitted in OpenNebula. Specifically, the idea of OpenNebula is a pure private cloud, in which users actually log into the head node to access cloud functions. This interface is a wrapper around an XML-RPC interface, which can also be used directly. ...
3-1-3_Scalable
... HSR - logical partitions and location management (cont’d) • Each subnetwork has at least one Home Agent to manage membership • Each member of the subnet registers its own hierarchical address with Home Agent – periodical/event driven registration; stale addresses are timed out by Home Agent • Home ...
... HSR - logical partitions and location management (cont’d) • Each subnetwork has at least one Home Agent to manage membership • Each member of the subnet registers its own hierarchical address with Home Agent – periodical/event driven registration; stale addresses are timed out by Home Agent • Home ...
QU-RPL: Queue Utilization based RPL for Load
... builds directed acyclic graphs (DAGs) based on routing metrics and constraints. In most deployment scenarios, RPL constructs tree-like routing topology called destination-oriented directed acyclic graph (DODAG) rooted at an LLN border router (LBR), and supports bi-directional IPv6 communication betw ...
... builds directed acyclic graphs (DAGs) based on routing metrics and constraints. In most deployment scenarios, RPL constructs tree-like routing topology called destination-oriented directed acyclic graph (DODAG) rooted at an LLN border router (LBR), and supports bi-directional IPv6 communication betw ...
CMPE655 - Shaaban
... Parallel Computer Architecture A parallel computer (or multiple processor system) is a collection of communicating processing elements (processors) that cooperate to solve large computational problems fast by dividing such problems into parallel tasks, exploiting Thread-Level Parallelism (TLP). i.e ...
... Parallel Computer Architecture A parallel computer (or multiple processor system) is a collection of communicating processing elements (processors) that cooperate to solve large computational problems fast by dividing such problems into parallel tasks, exploiting Thread-Level Parallelism (TLP). i.e ...
Information Retrieval in Peer to Peer Systems
... Each peer A forwards a search message to only a fraction of its peers The fraction of peers that are selected is a parameter to the mechanism Advantage: that it does not require any global knowledge. Every node is able to make local decisions in a fast manner Disadvantage: some large segments of the ...
... Each peer A forwards a search message to only a fraction of its peers The fraction of peers that are selected is a parameter to the mechanism Advantage: that it does not require any global knowledge. Every node is able to make local decisions in a fast manner Disadvantage: some large segments of the ...
LNET Fine Grained Routing - paper
... Fig. 3 is a simple depiction of another possible path that a compute node might use when communicating with an OSS. In this case, the router node’s IB connection is not on the same IB switch as the OSS and, therefore, has a much greater amount of latency and will be restricted to the available bandw ...
... Fig. 3 is a simple depiction of another possible path that a compute node might use when communicating with an OSS. In this case, the router node’s IB connection is not on the same IB switch as the OSS and, therefore, has a much greater amount of latency and will be restricted to the available bandw ...
Chapter 10: Mass-Storage Structure
... errors, just disk failures Solaris ZFS adds checksums of all data and metadata Checksums kept with pointer to object, to detect if object is the ...
... errors, just disk failures Solaris ZFS adds checksums of all data and metadata Checksums kept with pointer to object, to detect if object is the ...
A hardware operating system kernel for multi
... whose size is equal to the maximum thread count times the size of a processor context. Because of its large size, the context memory should be mapped to an external SDRAM. The context manager includes a context buffer which is an on-chip memory that holds the context of the scheduled thread or the su ...
... whose size is equal to the maximum thread count times the size of a processor context. Because of its large size, the context memory should be mapped to an external SDRAM. The context manager includes a context buffer which is an on-chip memory that holds the context of the scheduled thread or the su ...
Document
... Database at all routers within area should be synchronized. After changes in network it takes time to notify the change to all the routers within area. In between database is not synchronized and it may cause looping of packets. ...
... Database at all routers within area should be synchronized. After changes in network it takes time to notify the change to all the routers within area. In between database is not synchronized and it may cause looping of packets. ...
pdf
... network. The fanout for a given node changes from round to round, but remains constant within a round. In our ClusterBase dynamic fanout protocol, we adopt a cluster model where nodes are clustered according to a geographical proximity criterion. The pseudo-code for the information dissemination pro ...
... network. The fanout for a given node changes from round to round, but remains constant within a round. In our ClusterBase dynamic fanout protocol, we adopt a cluster model where nodes are clustered according to a geographical proximity criterion. The pseudo-code for the information dissemination pro ...
Intel Research Lablet Research Project Proposal Template
... Routing as Query Processing In database terms, the routing table is a view over changing network conditions and state Maintaining it is the domain of distributed continuous ...
... Routing as Query Processing In database terms, the routing table is a view over changing network conditions and state Maintaining it is the domain of distributed continuous ...
Symbiotic Relationships in Internet Routing Overlays Abstract University of Maryland
... In this paper, we present the design, implementation, and evaluation of PeerWise, a latency-reducing routing overlay based on mutual advantage. PeerWise scalably discovers detour routes: “indirect” one-hop paths that have lower round trip latency than the “direct” path. In a previous paper [17], we ...
... In this paper, we present the design, implementation, and evaluation of PeerWise, a latency-reducing routing overlay based on mutual advantage. PeerWise scalably discovers detour routes: “indirect” one-hop paths that have lower round trip latency than the “direct” path. In a previous paper [17], we ...
the linux operating system
... that runs as a single process with a single address space. All the functional components of the kernel have access to all of its internal data structures and routines. If changes are made to any portion of a typical monolithic OS, all the modules and routines must be relinked and reinstalled and the ...
... that runs as a single process with a single address space. All the functional components of the kernel have access to all of its internal data structures and routines. If changes are made to any portion of a typical monolithic OS, all the modules and routines must be relinked and reinstalled and the ...
A secure routing protocol for ad hoc networks
... An ad hoc network forms when a collection of mobile nodes join together and create a network by agreeing to route messages for each other. There is no shared infrastructure in an ad hoc network, such as centralized routers or defined administrative policy. All proposed protocols [9, 12, 13, 14, 15] ...
... An ad hoc network forms when a collection of mobile nodes join together and create a network by agreeing to route messages for each other. There is no shared infrastructure in an ad hoc network, such as centralized routers or defined administrative policy. All proposed protocols [9, 12, 13, 14, 15] ...
A Quantitative Analysis of OS Noise
... checkpoint-restart systems, tracers to collect performance and debugging information, and virtualization [19], are seeing wider use in HPC systems. All these technologies require richer support from the OS and the system software. Moreover, applications being run on supercomputers are no longer comi ...
... checkpoint-restart systems, tracers to collect performance and debugging information, and virtualization [19], are seeing wider use in HPC systems. All these technologies require richer support from the OS and the system software. Moreover, applications being run on supercomputers are no longer comi ...
Query-Flood DoS Attacks in Gnutella
... have enough processing capacity (or does not care to) to examine all these queries (in which case it simply accepts them on a first-come-first-serve basis), as well as the case in which it has enough processing capacity to at least examine all these queries and then choose some subset of them for pr ...
... have enough processing capacity (or does not care to) to examine all these queries (in which case it simply accepts them on a first-come-first-serve basis), as well as the case in which it has enough processing capacity to at least examine all these queries and then choose some subset of them for pr ...
Cloud Computing- A Review
... in the cloud allows enterprises to scale their IT resources up and down within very short amounts of time. Flexibility presents a large set of options for an enterprise to configure its IT resources, such as operating systems, software, memory, CPU, etc. Another challenge is that much part of IT res ...
... in the cloud allows enterprises to scale their IT resources up and down within very short amounts of time. Flexibility presents a large set of options for an enterprise to configure its IT resources, such as operating systems, software, memory, CPU, etc. Another challenge is that much part of IT res ...
Building Verifiable Trusted Path on Commodity x86 Computers
... in the form of secure attention sequences—key-combinations (e.g., Ctrl+Alt+Del) to initiate communication with the OS— the trusted computing base for the end-points of that trusted path is the entire OS, which is large and routinely compromised. Such trusted paths, though users may be forced to trus ...
... in the form of secure attention sequences—key-combinations (e.g., Ctrl+Alt+Del) to initiate communication with the OS— the trusted computing base for the end-points of that trusted path is the entire OS, which is large and routinely compromised. Such trusted paths, though users may be forced to trus ...
Distributed operating system
A distributed operating system is a software over a collection of independent, networked, communicating, and physically separate computational nodes. Each individual node holds a specific software subset of the global aggregate operating system. Each subset is a composite of two distinct service provisioners. The first is a ubiquitous minimal kernel, or microkernel, that directly controls that node’s hardware. Second is a higher-level collection of system management components that coordinate the node's individual and collaborative activities. These components abstract microkernel functions and support user applications.The microkernel and the management components collection work together. They support the system’s goal of integrating multiple resources and processing functionality into an efficient and stable system. This seamless integration of individual nodes into a global system is referred to as transparency, or single system image; describing the illusion provided to users of the global system’s appearance as a single computational entity.