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Overview

.. only:: latex

   :term:`FiPy` is an object oriented, partial differential equation (PDE)
   solver, written in :term:`Python`, based on a standard finite volume
   (FV) approach. The framework has been developed in the Materials Science
   and Engineering Division (MSED_) and Center for Theoretical and

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Test 2: Shuffled Sum

Ideally, the sequence

    1  	     1      1
10× /   + 9× / + 9× / + 9×1 + 9×10 + 9×100 + 9×1000 = 10000.
   1000     100     10

However, due to the same floating point representation problem, variations arise

Similarly, the sequence

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*.aux
*.log
*.nav
*.out
*.pdf
*.snm
*.toc

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#!/usr/bin/python
# -*- coding: utf-8 -*-

## Sympy code to generate expressions for PFHub Problem 7 (MMS)

from sympy import Symbol, symbols, simplify
from sympy import Eq, sin, cos, cosh, sinh, tanh, sqrt
from sympy.physics.vector import divergence, gradient, ReferenceFrame, time_derivative
from sympy.printing import ccode, pprint
from sympy.abc import kappa, S, t

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Compute Node Comparison

Trevor Keller, Ph.D. • NIST MML MSED • May 15, 2018

Description

This document summarizes the side-by-side comparison of dual-socket servers:

2× [AMD EPYC 7601][_epyc] vs. 2× [Intel Xeon E5-2697Av4][_xeon].

The AMD system is a testbed, access to which was provided by [KOI Computers][_koic].

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% Modifications for @b0rk's excellent Bite Size Networking
% to get a proper 2-sided booklet
\documentclass[12pt]{article}
\usepackage{graphicx,pdfpages}
\usepackage[paperheight=11in,paperwidth=8.5in,margin=0in]{geometry}
\pagestyle{empty}
\begin{document}
\begin{figure}\centering
  \vskip-1cm
  \includegraphics[page=24,width=8.25in,angle=180]{bite-size-networking.pdf} 

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Bottom line: use du --apparent-size to compare information content (independent of filesystems), rather than disk utilization (block-size dependent).

                *Distributed Disk Utilization*

BeeGFS	Items	Apparent Size	per Item	On Disk	per Item
hsf_0/	176893	162.0 MB	0.94 KB	100.2 MB	0.58 KB
hsf_1/	165189	152.5 MB	0.94 KB	93.9 MB	0.58 KB

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/* vector_addition.cu
 * Available as a Gist at https://tinyurl.com/y34nfxgc
 */

#include <stdio.h>
#include <cuda.h>

#define N 16

__global__ void vector_addition(int* d_u, int* d_v, int* d_w)