Parallelism increases effective size of each level of hierarchy, without increasing access time. Parallelism and locality within memory systems too ...
Vaccum tube, transistor, IC, VLSI. Here focus only on VLSI generation ... Commodity (home/office) desktop: less than $10,000 ... games, video /signal processing, ...
Invalidation protocols much more popular (more later) Some systems provide both, or even hybrid ... MESI (4-state) Invalidation Protocol. Problem with MSI protocol ...
Several patterns of communication are prevalent. How to ... Extrems: binary cube or 2-D grid often represent optima, depending on specific constants (esp. ...
... tiled with variable-size-and-shape triangles. in 3D: may be ... Basic idea: Recursively divide sets into two. Keep shapes squarish as long as possible ...
on read, add yourself to head of ... can reserve bandwidth for things like video or real-time ... Home changes state to shared when it receives revision msg. 42 ...
MPI/Message passing, Shared Memory, Charm /shared objs. loop-parallel: openMP, ... User-level threads, each running full-fledged MPI. Built on top of Charm ...
All processors execute essentially the same program, and same steps, but not in lockstep. All communication is almost in lockstep. Collective calls: ...
Can we compare the models to decide which one is 'better' ... e.g. interior of rocket, bridge, airplane-wing with air flowing around, global weather, ...
This is not hard to do, if you have a serializing component such as a bus (or the memory itself) ... may be actually observed (by a read miss) only later ...
CS433/533 Programming Assignment 2 Overview ... they will have address 0 and 1 Node.java ... Implementing TCP socket manage use use use On Command transfer ...
Title: Application I Author: Yang Richard Yang Last modified by: Richard Yang Created Date: 10/8/1999 7:08:27 PM Document presentation format: On-screen Show (4:3)
... consistency. get(Read/Write, data), work on data, release(data) get makes a local copy. data-exchange protocols underneath provide the (simplified) consistency ...
The number of hosts attached to the Internet in July 2002 was about 162 millions ... Read the manual of ping and traceroute, and try them on unix.kmitl.ac.th machine ...
Title: Cache performance Subject: CS232 @ UIUC Author: Howard Huang Description 2001-2003 Howard Huang Last modified by: cse Created Date: 1/14/2003 1:32:12 AM
Cookies need to be accessed BEFORE you set your ... which domains/directory paths the cookie is sent to ... and this information is stored in a cookie ...
atomic op when arrive at lock, not when it's free (so less contention) ... log p rounds of synchronization. In round k, proc i synchronizes with proc (i 2k) mod p ...
V = ALU operation oVerflowed. Interrupt Disable bits. I = 1, disables the IRQ. ... oVerflow No meaning Result was greater than 31 bits (V= 1') Indicates a ...
... Architecture is the science and art of selecting and interconnecting hardware ... (1) instruction set architecture (ISA), (2) pipelining, (3) memory hierarchy, (4) ...