PDF-Desperately needed remedies for the undebuggability of large floating point computations

Author : marina-yarberry | Published Date : 2017-04-08

File Boulder Version dated April 24 2012 641 amPp 3 4 Abstract and Cau

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Desperately needed remedies for the undebuggability of large floating point computations: Transcript

File Boulder Version dated April 24 2012 641 amPp 3 4 Abstract and Cau. g 3x10 floating point data values brPage 3br The Good Ol Download data from experimentalists to UCSC Process data locally Load results into local MySQL tables Present data via CGI to the WWW Expensive staff time Slow turnaround brPage 4br Version 09 By David Bishop (dbishop@vhdl.org) Floating-point numbers are the favorites of software people, and the least favorite of hardware people. The reason for this is because floating point takes up almo - . Nalini. Kumar. . Gaurav. . Chitroda. . Komal. . Kasat. OUTLINE. Introduction. Prior Art. Hw/. Sw. Partitioning Of Floating Point Applications. Floating Point To Fixed Point Conversion. Fixed Point To Floating Point Conversion. HPEC Conference, Sept 12 2012. Michael Parker. Altera Corp. Dan Pritsker . Altera Corp. 2. 28-nm . DSP Architecture on Stratix V FPGAs. User-programmable variable-precision . signal processing. Optimized for single- and double-precision . Convert Unsigned Floating-Point Binary 10111101.101110112 to Decimal Solution: The integer portion is evaluated as an unsigned integer: 101111012 Original Integer decimal = 1*27 + 0*26 + 1*25 + & IEEE 754. Column Pattern. What goes to the right of 1’s column?. 2. 3. 8. 2. 2. 4. 2. 1. 2. 2. 0. 1. Column Pattern. Negative powers of two:. 2. -3. = . = . . = 0.125. . 2. 3. 8. 2. 2. 4. Review. Homework due on Friday. Questions. Binary. Addition. Subtraction. Encoding. Outline. Two’s complement. Excess notation. Floating point format. Two’s complement. Similar to one’s complement. Seeing the Holy Spirit… and. understanding our relationship with Him. . . HEALING DESPERATELY NEEDED. Seeing the Holy Spirit… and. understanding our relationship with Him. . -He ministers to us in our hurt.. Outline. Fixed-point Numbers. Floating Point Numbers. Superscalar Processors. Multithreading. Homogeneous Multiprocessing. Heterogeneous Multiprocessing. 1. 3.141592653589793238462643383…. Fixed-point Numbers. Rounding. Floating-Point Operations. Mathematical Properties. CS 105. “Tour of the Black Holes of Computing!”. Floating-Point Puzzles. For each of the following C expressions, either:. Argue that it is true for all argument values. Instructor:. . Mark Wyse. Teaching Assistants:. Kevin Bi Parker, . DeWilde. , Emily . Furst. ,. Sarah House, Waylon Huang, Vinny . Palaniappan. http://xkcd.com/571/. . Administrivia. Lab 1 due Friday (1/19). Rounding. Floating-Point Operations. Mathematical Properties. CS 105. “Tour of the Black Holes of Computing!”. Floating-Point Puzzles. For each of the following C expressions, either:. Argue that it is true for all argument values. 14-513 18-613 Floating Point 15-213/18-213/14-513/15-513/18-613: Introduction to Computer Systems 4 th Lecture, Sept. 5 , 2019 Today: Floating Point Background: Fractional binary numbers IEEE floating point standard: Definition IEEE 754 types of real number values. IEEE uses three different encodings to represent real values:. 1. . Denormalized values: . These are . extremely. small values, very close to 0, including 0. If such a value becomes too small, it can cause .

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