Sanchayan Maity
2fcc51c2c1
While at it also add the libpthread static library amd m5op_x86 for matrix multiplication test code as well. Note that the splash2 benchmark code does not comply with gem5 coding guidelines. Academic guys never seem to follow 80 columns and no whitespace guideline :(.
59 lines
2.3 KiB
C
59 lines
2.3 KiB
C
/*************************************************************************/
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/* */
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/* Copyright (c) 1994 Stanford University */
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/* */
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/* All rights reserved. */
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/* */
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/* Permission is given to use, copy, and modify this software for any */
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/* non-commercial purpose as long as this copyright notice is not */
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/* removed. All other uses, including redistribution in whole or in */
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/* part, are forbidden without prior written permission. */
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/* */
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/* This software is provided with absolutely no warranty and no */
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/* support. */
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/* */
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/*************************************************************************/
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EXTERN_ENV
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#include <cmath>
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#include "global.h"
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/* return the value of a with the same sign as b */
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#define sign(a,b) (b < 0 ) ? ( (a < 0) ? a : -a) : ( (a < 0) ? -a : a)
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/* compute some relevant distances between the two input molecules to
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this routine. if they are greater than the cutoff radius, compute
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these distances as if one of the particles were at its mirror image
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(periodic boundary conditions).
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used by the intermolecular interactions routines */
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void CSHIFT(double *XA, double *XB, double XMA, double XMB, double *XL, double BOXH, double BOXL)
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{
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long I;
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XL[0] = XMA-XMB;
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XL[1] = XMA-XB[0];
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XL[2] = XMA-XB[2];
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XL[3] = XA[0]-XMB;
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XL[4] = XA[2]-XMB;
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XL[5] = XA[0]-XB[0];
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XL[6] = XA[0]-XB[2];
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XL[7] = XA[2]-XB[0];
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XL[8] = XA[2]-XB[2];
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XL[9] = XA[1]-XB[1];
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XL[10] = XA[1]-XB[0];
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XL[11] = XA[1]-XB[2];
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XL[12] = XA[0]-XB[1];
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XL[13] = XA[2]-XB[1];
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/* go through all 14 distances computed */
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for (I = 0; I < 14; I++) {
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/* if the value is greater than the cutoff radius */
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if (fabs(XL[I]) > BOXH) {
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XL[I] = XL[I] -(sign(BOXL,XL[I]));
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}
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} /* for */
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} /* end of subroutine CSHIFT */
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