HDL Compiler for Verilog Reference Manual

Comments? E-mail your comments about Synopsys documentation to doc@synopsys.com HDL Compiler for Verilog Reference Manual Version 2000.05, May 2000

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Computer Architecture: Dataflow (Part I)

course.ece.cmu.edu

Computer Architecture,” ACM Computing Surveys 1982. ! Veen, “Dataflow Machine Architecture,” ACM Computing Surveys 1986. ! Gurd et al., “The Manchester prototype dataflow computer,” CACM 1985. ! Arvind and Nikhil, “Executing a Program on the MIT Tagged-Token Dataflow Architecture,” IEEE TC 1990. !

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Computer Architecture: Vector Processing: SIMD/Vector/GPU ...

course.ece.cmu.edu

Carnegie Mellon University Vector Processing: Exploiting Regular (Data) Parallelism Data Parallelism Concurrency arises from performing the same operations on different pieces of data Single instruction multiple data (SIMD) E.g., dot product of two vectors Contrast with data flow

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Computer Architecture: Branch Prediction

course.ece.cmu.edu

How to Handle Control Dependences Critical to keep the pipeline full with correct sequence of dynamic instructions. Potential solutions if the instruction is a control-flow instruction: Stall the pipeline until we know the next fetch address Guess the next fetch address (branch prediction) Employ delayed branching (branch delay slot) Do something else (fine-grained multithreading)

  Architecture, Prediction, Branch, Branch prediction

Computer Architecture: Main Memory (Part I)

course.ece.cmu.edu

Memory Bank Organization and Operation Read access sequence: 1. Decode row address & drive word-lines 2. Selected bits drive bit-lines • Entire row read 3. Amplify row data 4. Decode column address & select subset of row • Send to output 5. …

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CMOS Power Consumption - ECE:Course Page

course.ece.cmu.edu

Ways to reducing power consumption Load capacitance (C L) ⌧Roughly proportional to the chip area Switching activity (avg. number of transitions/cycle) ⌧Very data dependent ⌧A big portion due to glitches (real-delay) Clock frequency (f) ⌧Lowering only f decreases average power, but total energy is the same and throughput is worse 1.00 1 ...

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MOSFET transistor I-V characteristics

course.ece.cmu.edu

Depletion Mode NMOSFET • Depletion mode FETs have a channel implanted such that there is conduction with V GS=0 • The operation is the same as the enhancement mode FET, but the threshold voltage is shifted •Vt is negative for depletion NMOS, and positive for depletion PMOS VGS n+ n+ VS VDS n+ p

  Dome, Transistor, Characteristics, Enhancement, Channel, Mosfets, Enhancement mode, Mosfet transistor i v characteristics

Computer Architecture: Multithreading

course.ece.cmu.edu

Sun Niagara Multithreaded Pipeline 13 Tera MTA Fine-grained Multithreading 256 processors, each with a 21-cycle pipeline 128 active threads A thread can issue instructions every 21 cycles Then, why 128 threads? Memory latency: approximately 150 cycles No data cache Threads can be blocked waiting for memory More threads better ability to tolerate memory latency

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A Primer on Memory Consistency and Cache Coherence

course.ece.cmu.edu

Daniel J. Sorin, Duke University Mark D. Hill and David A. Wood, University of Wisconsin, Madison ... We thank Blake Hechtman for implementing and testing (and debugging!) all of the coherence protocols in this primer. As the reader will soon …

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circuit. Output: 12-16 amps; ~1.44 kW to ~1.92 kW 8-10 hours depending on model; used for home charging 2-5 miles of range per hour of charging Level 2 Uses a 208/240V AC electric circuit. Output: 15-80 amps5; ~3.1 kW to ~19.2 kW 4-8 hours; available at home and publicly 10-20 miles of range per hour of charging Level 3 DC Fast Chargers (DCFC)

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power for compliance with common energy codes while maintaining fixture appearance. SDL4’ LED Strip Diffused Lens The sleek architectural SDL is designed with tooless entry features saving time and money on installation. Optimizing industry leading LED technology, the SDL series delivers unparalleled performance and efficiency meeting stringent

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