2. COMPUTER SYSTEM 2.1 Introduction The computer system at
... Cluster 1 has 6.08 teraflops (TF) of total peak performance and 3.1 TiB of total memory. Cluster 2 or 3 has 10.8 TF of total peak performance and 5.0 TiB of total memory. Each cluster has 6.9 TB magnetic disks connected via storage area network (SAN). As a faster media for data transfer between succ ...
... Cluster 1 has 6.08 teraflops (TF) of total peak performance and 3.1 TiB of total memory. Cluster 2 or 3 has 10.8 TF of total peak performance and 5.0 TiB of total memory. Each cluster has 6.9 TB magnetic disks connected via storage area network (SAN). As a faster media for data transfer between succ ...
PPT - UNL CSE
... Tom is deploying a new server program for his client. During the field test, he notices that its performance is below his expectation. How would he identify the main causes? A company is planning to upgrade the server systems. You are asked to analyze which systems and which configurations will ...
... Tom is deploying a new server program for his client. During the field test, he notices that its performance is below his expectation. How would he identify the main causes? A company is planning to upgrade the server systems. You are asked to analyze which systems and which configurations will ...
powerpoint slides for the guest lecture give by Shahrear Iqbal
... Mechanisms and policy to keep programs and users from accessing or changing stuff they should not do ...
... Mechanisms and policy to keep programs and users from accessing or changing stuff they should not do ...
AI Approaches to Network Fault Management
... • Restoration: Continue service in presence of fault – Switch over to spares – Reroute around trouble spot – Restore software or data from backup ...
... • Restoration: Continue service in presence of fault – Switch over to spares – Reroute around trouble spot – Restore software or data from backup ...
process
... • Inter-Process Communication or IPC – would like two processes to share information between them • shared file • split a single application into multiple processes to speed up execution by allowing overlapped I/O • split an application into multiple processes for modularity of coding ...
... • Inter-Process Communication or IPC – would like two processes to share information between them • shared file • split a single application into multiple processes to speed up execution by allowing overlapped I/O • split an application into multiple processes for modularity of coding ...
Windows XP Boot Process
... Detect and Configure Hardware Phase • After processing the Boot.ini file, Ntldr starts Ntdetect.com. Ntdetect.com collects information about installed hardware by using calls to system firmware routines. Ntdetect.com then passes this information back to Ntldr. Ntldr gathers the data received from Nt ...
... Detect and Configure Hardware Phase • After processing the Boot.ini file, Ntldr starts Ntdetect.com. Ntdetect.com collects information about installed hardware by using calls to system firmware routines. Ntdetect.com then passes this information back to Ntldr. Ntldr gathers the data received from Nt ...
Module 4: Processes
... The context (or image) of a process can be described by – contents of main memory – contents of CPU registers – other info (open files, I/O in progress, etc.) Main memory -- three logically distinct regions of memory: – code region: contains executable code (typically read-only) – data region: stora ...
... The context (or image) of a process can be described by – contents of main memory – contents of CPU registers – other info (open files, I/O in progress, etc.) Main memory -- three logically distinct regions of memory: – code region: contains executable code (typically read-only) – data region: stora ...
Module 3: Operating
... Higher level functional support: clustering, parallel processing, … A distributed system is a collection heterogeneous processors that do not share memory or a clock. Each processor has its own local memory. Connected by a network. The processors in the system are connected through a communication n ...
... Higher level functional support: clustering, parallel processing, … A distributed system is a collection heterogeneous processors that do not share memory or a clock. Each processor has its own local memory. Connected by a network. The processors in the system are connected through a communication n ...
Computer Network and Infrastructure
... (creator-created) relationship with another process. The process control block may contain pointers to other processes to support these structures. ...
... (creator-created) relationship with another process. The process control block may contain pointers to other processes to support these structures. ...
competitive equilibrium approach for load balancing a
... Computational grids interconnect hundreds of heterogeneous computing resources from geographically remote sites, designed to meet the large demands of many users from scientific and business domains. A job initiated at one site can be executed by any of the computing resources. Therefore, response t ...
... Computational grids interconnect hundreds of heterogeneous computing resources from geographically remote sites, designed to meet the large demands of many users from scientific and business domains. A job initiated at one site can be executed by any of the computing resources. Therefore, response t ...
LESSON PLAN PCCS4304 OPERATING SYSTEM (3-0-0)
... Real time system is one that must react to I/p & responds to them quickly. A real time system should not be late in response to one event. A real time should have well defined time constraints. Real time systems are of two types a. Hard Real Time Systems b. Soft Real Time Systems A hard re ...
... Real time system is one that must react to I/p & responds to them quickly. A real time system should not be late in response to one event. A real time should have well defined time constraints. Real time systems are of two types a. Hard Real Time Systems b. Soft Real Time Systems A hard re ...
Service-Oriented Software Architecture for Sensor
... – Assignment of data to location of data mining – Location awareness necessary – ID based addressing unfavorable • Random node distribution • Routes become obsolete quickly due to mobility ...
... – Assignment of data to location of data mining – Location awareness necessary – ID based addressing unfavorable • Random node distribution • Routes become obsolete quickly due to mobility ...
Service-Oriented Software Architecture for Sensor
... • Create hardware-independent software components (middleware, services) • Combining of predefined components ...
... • Create hardware-independent software components (middleware, services) • Combining of predefined components ...
Chapter 8 Operating Systems and Utility Programs Chapter 8
... contains active application - the one you currently are using Background contains inactive programs that are running but are not in use ...
... contains active application - the one you currently are using Background contains inactive programs that are running but are not in use ...
11. Kernel Design
... Wait for pre-existing RCU readers to complete (for deletion) Maintain multiple versions of recently updated objects (for readers) ...
... Wait for pre-existing RCU readers to complete (for deletion) Maintain multiple versions of recently updated objects (for readers) ...
Software Platform based Embedded Multiprocessor SoC Prototyping
... within the CPU that interfaces into the memory coherency policy of the system. While semantically correct, these existing mechanisms introduce significant complexity in the system design that is not easily portable for all CPU family, when creating heterogeneous multiprocessor SoC [8]. 3.4.2 Hardwar ...
... within the CPU that interfaces into the memory coherency policy of the system. While semantically correct, these existing mechanisms introduce significant complexity in the system design that is not easily portable for all CPU family, when creating heterogeneous multiprocessor SoC [8]. 3.4.2 Hardwar ...
ppt
... Capability-based inter-process communication facility System support facilities (e.g., a kernel debugger) ...
... Capability-based inter-process communication facility System support facilities (e.g., a kernel debugger) ...
slides 1
... • Each end-to-end data stream divided into packets – User’s packets share network resources • Compared to dedicated allocation ...
... • Each end-to-end data stream divided into packets – User’s packets share network resources • Compared to dedicated allocation ...
IV. Parallel Operating Systems
... architectures. The physical architecture of a computer system is therefore an important starting point for understanding the operating system that controls it. There are two famous classi cations of parallel computer architectures: Flynn's [Fly72] and Johnson's [Joh88]. 2.1.1 Flynn's classi cation o ...
... architectures. The physical architecture of a computer system is therefore an important starting point for understanding the operating system that controls it. There are two famous classi cations of parallel computer architectures: Flynn's [Fly72] and Johnson's [Joh88]. 2.1.1 Flynn's classi cation o ...
Lecture OS - University of Wisconsin
... the execution of another process Cooperating process can affect or be affected by the execution of another process Advantages of process cooperation Computation speed-up • Improve performance by overlapping activities or performing work in parallel ...
... the execution of another process Cooperating process can affect or be affected by the execution of another process Advantages of process cooperation Computation speed-up • Improve performance by overlapping activities or performing work in parallel ...
幻灯片 1 - Universidad Abierta Interamericana
... provide cluster management • Reduce the management work especially in the system deployments • Increase the availability against the storage ...
... provide cluster management • Reduce the management work especially in the system deployments • Increase the availability against the storage ...
Limited Direct Execution
... procedure call is the famous trap instruction. More specifically, when you call open() (for example), you are executing a procedure call into the C library. Therein, whether for open() or any of the other system calls provided, the library uses an agreed-upon calling convention with the kernel to pu ...
... procedure call is the famous trap instruction. More specifically, when you call open() (for example), you are executing a procedure call into the C library. Therein, whether for open() or any of the other system calls provided, the library uses an agreed-upon calling convention with the kernel to pu ...
Cooperative Computing for Distributed Embedded Systems
... Data Bricks: mobile data carried by SM during migration ...
... Data Bricks: mobile data carried by SM during migration ...
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.