gem5/splash2/codes/apps/ocean/non_contiguous_partitions/slave1.C
Sanchayan Maity 0f4b39775c Fix splash2 benchmark
During the last commit of splash2 benchmark it seems before committing
when we ran "make clean", it effectively undid what the patch at below
link did
http://www.capsl.udel.edu/splash/Download.html

Fix this since without this it is not possible to build the arcane
splash2 benchmark.
2017-04-26 21:33:02 +05:30

627 lines
17 KiB
C

/*************************************************************************/
/* */
/* Copyright (c) 1994 Stanford University */
/* */
/* All rights reserved. */
/* */
/* Permission is given to use, copy, and modify this software for any */
/* non-commercial purpose as long as this copyright notice is not */
/* removed. All other uses, including redistribution in whole or in */
/* part, are forbidden without prior written permission. */
/* */
/* This software is provided with absolutely no warranty and no */
/* support. */
/* */
/*************************************************************************/
/* ****************
subroutine slave
**************** */
#include <stdio.h>
#include <math.h>
#include <time.h>
#include <stdlib.h>
#include "decs.h"
void slave()
{
long i;
long j;
long nstep;
long iindex;
long iday;
double ysca1;
double y;
double factor;
double sintemp;
double curlt;
double ressqr;
long istart;
long iend;
long jstart;
long jend;
long ist;
long ien;
long jst;
long jen;
double fac;
long dayflag=0;
long dhourflag=0;
long endflag=0;
double ttime;
double dhour;
double day;
long firstrow;
long lastrow;
long numrows;
long firstcol;
long lastcol;
long numcols;
long psiindex;
double psibipriv;
long psinum;
long procid;
unsigned long t1;
ressqr = lev_res[numlev-1] * lev_res[numlev-1];
LOCK(locks->idlock)
procid = global->id;
global->id = global->id+1;
UNLOCK(locks->idlock)
/* POSSIBLE ENHANCEMENT: Here is where one might pin processes to
processors to avoid migration. */
/* POSSIBLE ENHANCEMENT: Here is where one might distribute
data structures across physically distributed memories in
a round-robin fashion. */
firstcol = gp[procid].rel_start_x[numlev-1];
lastcol = firstcol + gp[procid].rel_num_x[numlev-1] - 1;
firstrow = gp[procid].rel_start_y[numlev-1];
lastrow = firstrow + gp[procid].rel_num_y[numlev-1] - 1;
numcols = gp[procid].rel_num_x[numlev-1];
numrows = gp[procid].rel_num_y[numlev-1];
if (procid > nprocs/2) {
psinum = 2;
} else {
psinum = 1;
}
/* every process gets its own copy of the timing variables to avoid
contention at shared memory locations. here, these variables
are initialized. */
ttime = 0.0;
dhour = 0.0;
nstep = 0 ;
day = 0.0;
ysca1 = 0.5*ysca;
if (procid == MASTER) {
for(iindex = 0;iindex<=jm-1;iindex++) {
y = ((double) iindex)*res;
wrk2->f[iindex] = f0+beta*(y-ysca1);
}
}
if (procid == MASTER) {
fields2->psium[0][0]=0.0;
}
if (procid == nprocs-xprocs) {
fields2->psium[im-1][0]=0.0;
}
if (procid == xprocs-1) {
fields2->psium[0][jm-1]=0.0;
}
if (procid == nprocs-1) {
fields2->psium[im-1][jm-1]=0.0;
}
if (firstrow == 1) {
for(j=firstcol;j<=lastcol;j++) {
fields2->psium[0][j] = 0.0;
}
}
if ((firstrow+numrows) == im-1) {
for(j=firstcol;j<=lastcol;j++) {
fields2->psium[im-1][j] = 0.0;
}
}
if (firstcol == 1) {
for(j=firstrow;j<=lastrow;j++) {
fields2->psium[j][0] = 0.0;
}
}
if ((firstcol+numcols) == jm-1) {
for(j=firstrow;j<=lastrow;j++) {
fields2->psium[j][jm-1] = 0.0;
}
}
for(i=firstrow;i<=lastrow;i++) {
for(iindex=firstcol;iindex<=lastcol;iindex++) {
fields2->psium[i][iindex] = 0.0;
}
}
if (procid == MASTER) {
fields2->psilm[0][0]=0.0;
}
if (procid == nprocs-xprocs) {
fields2->psilm[im-1][0]=0.0;
}
if (procid == xprocs-1) {
fields2->psilm[0][jm-1]=0.0;
}
if (procid == nprocs-1) {
fields2->psilm[im-1][jm-1]=0.0;
}
if (firstrow == 1) {
for(j=firstcol;j<=lastcol;j++) {
fields2->psilm[0][j] = 0.0;
}
}
if ((firstrow+numrows) == im-1) {
for(j=firstcol;j<=lastcol;j++) {
fields2->psilm[im-1][j] = 0.0;
}
}
if (firstcol == 1) {
for(j=firstrow;j<=lastrow;j++) {
fields2->psilm[j][0] = 0.0;
}
}
if ((firstcol+numcols) == jm-1) {
for(j=firstrow;j<=lastrow;j++) {
fields2->psilm[j][jm-1] = 0.0;
}
}
for(i=firstrow;i<=lastrow;i++) {
for(iindex=firstcol;iindex<=lastcol;iindex++) {
fields2->psilm[i][iindex] = 0.0;
}
}
if (procid == MASTER) {
wrk1->psib[0][0]=1.0;
}
if (procid == xprocs-1) {
wrk1->psib[0][jm-1]=1.0;
}
if (procid == nprocs-xprocs) {
wrk1->psib[im-1][0]=1.0;
}
if (procid == nprocs-1) {
wrk1->psib[im-1][jm-1]=1.0;
}
if (firstrow == 1) {
for(j=firstcol;j<=lastcol;j++) {
wrk1->psib[0][j] = 1.0;
}
}
if ((firstrow+numrows) == im-1) {
for(j=firstcol;j<=lastcol;j++) {
wrk1->psib[im-1][j] = 1.0;
}
}
if (firstcol == 1) {
for(j=firstrow;j<=lastrow;j++) {
wrk1->psib[j][0] = 1.0;
}
}
if ((firstcol+numcols) == jm-1) {
for(j=firstrow;j<=lastrow;j++) {
wrk1->psib[j][jm-1] = 1.0;
}
}
for(i=firstrow;i<=lastrow;i++) {
for(iindex=firstcol;iindex<=lastcol;iindex++) {
wrk1->psib[i][iindex] = 0.0;
}
}
/* wait until all processes have completed the above initialization */
#if defined(MULTIPLE_BARRIERS)
BARRIER(bars->sl_prini,nprocs)
#else
BARRIER(bars->barrier,nprocs)
#endif
istart = gp[procid].rel_start_y[numlev-1];
iend = istart + gp[procid].rel_num_y[numlev-1] - 1;
jstart = gp[procid].rel_start_x[numlev-1];
jend = jstart + gp[procid].rel_num_x[numlev-1] - 1;
ist = istart;
ien = iend;
jst = jstart;
jen = jend;
if (istart == 1) {
istart = 0;
}
if (jstart == 1) {
jstart = 0;
}
if (iend == im-2) {
iend = im-1;
}
if (jend == jm-2) {
jend = jm-1;
}
for(i=istart;i<=iend;i++) {
for(j=jstart;j<=jend;j++) {
multi->rhs_multi[numlev-1][i][j] = wrk1->psib[i][j] * ressqr;
}
}
if (istart == 0) {
for(j=jstart;j<=jend;j++) {
multi->q_multi[numlev-1][0][j] = wrk1->psib[0][j];
}
}
if (iend == im-1) {
for(j=jstart;j<=jend;j++) {
multi->q_multi[numlev-1][im-1][j] = wrk1->psib[im-1][j];
}
}
if (jstart == 0) {
for(i=istart;i<=iend;i++) {
multi->q_multi[numlev-1][i][0] = wrk1->psib[i][0];
}
}
if (jend == jm-1) {
for(i=istart;i<=iend;i++) {
multi->q_multi[numlev-1][i][jm-1] = wrk1->psib[i][jm-1];
}
}
fac = 1.0 / (4.0 - ressqr*eig2);
for(i=ist;i<=ien;i++) {
for(j=jst;j<=jen;j++) {
multi->q_multi[numlev-1][i][j] = fac * (wrk1->psib[i+1][j] +
wrk1->psib[i-1][j] + wrk1->psib[i][j+1] + wrk1->psib[i][j-1] -
ressqr*wrk1->psib[i][j]);
}
}
#if defined(MULTIPLE_BARRIERS)
BARRIER(bars->sl_prini,nprocs)
#else
BARRIER(bars->barrier,nprocs)
#endif
multig(procid);
for(i=istart;i<=iend;i++) {
for(j=jstart;j<=jend;j++) {
wrk1->psib[i][j] = multi->q_multi[numlev-1][i][j];
}
}
#if defined(MULTIPLE_BARRIERS)
BARRIER(bars->sl_psini,nprocs)
#else
BARRIER(bars->barrier,nprocs)
#endif
/* update the local running sum psibipriv by summing all the resulting
values in that process's share of the psib matrix */
psibipriv=0.0;
if (procid == MASTER) {
psibipriv = psibipriv + 0.25*(wrk1->psib[0][0]);
}
if (procid == xprocs-1){
psibipriv = psibipriv + 0.25*(wrk1->psib[0][jm-1]);
}
if (procid == nprocs - xprocs) {
psibipriv=psibipriv+0.25*(wrk1->psib[im-1][0]);
}
if (procid == nprocs-1) {
psibipriv=psibipriv+0.25*(wrk1->psib[im-1][jm-1]);
}
if (firstrow == 1) {
for(j=firstcol;j<=lastcol;j++) {
psibipriv = psibipriv + 0.5*wrk1->psib[0][j];
}
}
if ((firstrow+numrows) == im-1) {
for(j=firstcol;j<=lastcol;j++) {
psibipriv = psibipriv + 0.5*wrk1->psib[im-1][j];
}
}
if (firstcol == 1) {
for(j=firstrow;j<=lastrow;j++) {
psibipriv = psibipriv + 0.5*wrk1->psib[j][0];
}
}
if ((firstcol+numcols) == jm-1) {
for(j=firstrow;j<=lastrow;j++) {
psibipriv = psibipriv + 0.5*wrk1->psib[j][jm-1];
}
}
for(iindex=firstcol;iindex<=lastcol;iindex++) {
for(i=firstrow;i<=lastrow;i++) {
psibipriv = psibipriv + wrk1->psib[i][iindex];
}
}
/* update the shared variable psibi by summing all the psibiprivs
of the individual processes into it. note that this combined
private and shared sum method avoids accessing the shared
variable psibi once for every element of the matrix. */
LOCK(locks->psibilock)
global->psibi = global->psibi + psibipriv;
UNLOCK(locks->psibilock)
for(psiindex=0;psiindex<=1;psiindex++) {
if (procid == MASTER) {
fields->psim[psiindex][0][0] = 0.0;
}
if (procid == nprocs-xprocs) {
fields->psim[psiindex][im-1][0] = 0.0;
}
if (procid == xprocs-1) {
fields->psim[psiindex][0][jm-1] = 0.0;
}
if (procid == nprocs-1) {
fields->psim[psiindex][im-1][jm-1] = 0.0;
}
if (firstrow == 1) {
for(j=firstcol;j<=lastcol;j++) {
fields->psim[psiindex][0][j] = 0.0;
}
}
if ((firstrow+numrows) == im-1) {
for(j=firstcol;j<=lastcol;j++) {
fields->psim[psiindex][im-1][j] = 0.0;
}
}
if (firstcol == 1) {
for(j=firstrow;j<=lastrow;j++) {
fields->psim[psiindex][j][0] = 0.0;
}
}
if ((firstcol+numcols) == jm-1) {
for(j=firstrow;j<=lastrow;j++) {
fields->psim[psiindex][j][jm-1] = 0.0;
}
}
for(i=firstrow;i<=lastrow;i++) {
for(iindex=firstcol;iindex<=lastcol;iindex++) {
fields->psim[psiindex][i][iindex] = 0.0;
}
}
}
/* initialize psi matrices the same way */
for(psiindex=0;psiindex<=1;psiindex++) {
if (procid == MASTER) {
fields->psi[psiindex][0][0] = 0.0;
}
if (procid == xprocs-1) {
fields->psi[psiindex][0][jm-1] = 0.0;
}
if (procid == nprocs-xprocs) {
fields->psi[psiindex][im-1][0] = 0.0;
}
if (procid == nprocs-1) {
fields->psi[psiindex][im-1][jm-1] = 0.0;
}
if (firstrow == 1) {
for(j=firstcol;j<=lastcol;j++) {
fields->psi[psiindex][0][j] = 0.0;
}
}
if ((firstrow+numrows) == im-1) {
for(j=firstcol;j<=lastcol;j++) {
fields->psi[psiindex][im-1][j] = 0.0;
}
}
if (firstcol == 1) {
for(j=firstrow;j<=lastrow;j++) {
fields->psi[psiindex][j][0] = 0.0;
}
}
if ((firstcol+numcols) == jm-1) {
for(j=firstrow;j<=lastrow;j++) {
fields->psi[psiindex][j][jm-1] = 0.0;
}
}
for(i=firstrow;i<=lastrow;i++) {
for(iindex=firstcol;iindex<=lastcol;iindex++) {
fields->psi[psiindex][i][iindex] = 0.0;
}
}
}
/* compute input curl of wind stress */
ysca1 = .5*ysca;
factor= -t0*pi/ysca1;
if (procid == MASTER) {
frcng->tauz[0][0] = 0.0;
}
if (procid == nprocs-xprocs) {
frcng->tauz[im-1][0] = 0.0;
}
if (procid == xprocs-1) {
sintemp = pi*((double) jmm1)*res/ysca1;
sintemp = sin(sintemp);
frcng->tauz[0][jm-1] = factor*sintemp;
}
if (procid == nprocs-1) {
sintemp = pi*((double) jmm1)*res/ysca1;
sintemp = sin(sintemp);
frcng->tauz[im-1][jm-1] = frcng->tauz[0][jm-1];
}
if (firstrow == 1) {
for(j=firstcol;j<=lastcol;j++) {
sintemp = pi*((double) j)*res/ysca1;
sintemp = sin(sintemp);
curlt = factor*sintemp;
frcng->tauz[0][j] = curlt;
}
}
if ((firstrow+numrows) == im-1) {
for(j=firstcol;j<=lastcol;j++) {
sintemp = pi*((double) j)*res/ysca1;
sintemp = sin(sintemp);
curlt = factor*sintemp;
frcng->tauz[im-1][j] = curlt;
}
}
if (firstcol == 1) {
for(j=firstrow;j<=lastrow;j++) {
frcng->tauz[j][0] = 0.0;
}
}
if ((firstcol+numcols) == jm-1) {
sintemp = pi*((double) jmm1)*res/ysca1;
sintemp = sin(sintemp);
curlt = factor*sintemp;
for(j=firstrow;j<=lastrow;j++) {
frcng->tauz[j][jm-1] = curlt;
}
}
for(iindex=firstcol;iindex<=lastcol;iindex++) {
sintemp = pi*((double) iindex)*res/ysca1;
sintemp = sin(sintemp);
curlt = factor*sintemp;
for(i=firstrow;i<=lastrow;i++) {
frcng->tauz[i][iindex] = curlt;
}
}
#if defined(MULTIPLE_BARRIERS)
BARRIER(bars->sl_onetime,nprocs)
#else
BARRIER(bars->barrier,nprocs)
#endif
/***************************************************************
one-time stuff over at this point
***************************************************************/
while (!endflag) {
while ((!dayflag) || (!dhourflag)) {
dayflag = 0;
dhourflag = 0;
if (nstep == 1) {
if (procid == MASTER) {
CLOCK(global->trackstart)
}
if ((procid == MASTER) || (do_stats)) {
CLOCK(t1);
gp[procid].total_time = t1;
gp[procid].multi_time = 0;
}
/* POSSIBLE ENHANCEMENT: Here is where one might reset the
statistics that one is measuring about the parallel execution */
}
slave2(procid,firstrow,lastrow,numrows,firstcol,lastcol,numcols);
/* update time and step number
note that these time and step variables are private i.e. every
process has its own copy and keeps track of its own time */
ttime = ttime + dtau;
nstep = nstep + 1;
day = ttime/86400.0;
if (day > ((double) outday0)) {
dayflag = 1;
iday = (long) day;
dhour = dhour+dtau;
if (dhour >= 86400.0) {
dhourflag = 1;
}
}
}
dhour = 0.0;
/* update values of psium array to psium + psim{1} */
if (procid == MASTER) {
fields2->psium[0][0] = fields2->psium[0][0]+fields->psim[0][0][0];
}
if (procid == nprocs-xprocs) {
fields2->psium[im-1][0] = fields2->psium[im-1][0]+fields->psim[0][im-1][0];
}
if (procid == xprocs-1) {
fields2->psium[0][jm-1] = fields2->psium[0][jm-1]+fields->psim[0][0][jm-1];
}
if (procid == nprocs-1) {
fields2->psium[im-1][jm-1] = fields2->psium[im-1][jm-1]+fields->psim[0][im-1][jm-1];
}
if (firstrow == 1) {
for(j=firstcol;j<=lastcol;j++) {
fields2->psium[0][j] = fields2->psium[0][j]+fields->psim[0][0][j];
}
}
if ((firstrow+numrows) == im-1) {
for(j=firstcol;j<=lastcol;j++) {
fields2->psium[im-1][j] = fields2->psium[im-1][j]+fields->psim[0][im-1][j];
}
}
if (firstcol == 1) {
for(j=firstrow;j<=lastrow;j++) {
fields2->psium[j][0] = fields2->psium[j][0]+fields->psim[0][j][0];
}
}
if ((firstcol+numcols) == jm-1) {
for(j=firstrow;j<=lastrow;j++) {
fields2->psium[j][jm-1] = fields2->psium[j][jm-1]+fields->psim[0][j][jm-1];
}
}
for(i=firstrow;i<=lastrow;i++) {
for(iindex=firstcol;iindex<=lastcol;iindex++) {
fields2->psium[i][iindex] = fields2->psium[i][iindex]+fields->psim[0][i][iindex];
}
}
/* update values of psilm array to psilm + psim[2] */
if (procid == MASTER) {
fields2->psilm[0][0] = fields2->psilm[0][0]+fields->psim[1][0][0];
}
if (procid == nprocs-xprocs) {
fields2->psilm[im-1][0] = fields2->psilm[im-1][0]+fields->psim[1][im-1][0];
}
if (procid == xprocs-1) {
fields2->psilm[0][jm-1] = fields2->psilm[0][jm-1]+fields->psim[1][0][jm-1];
}
if (procid == nprocs-1) {
fields2->psilm[im-1][jm-1] = fields2->psilm[im-1][jm-1]+fields->psim[1][im-1][jm-1];
}
if (firstrow == 1) {
for(j=firstcol;j<=lastcol;j++) {
fields2->psilm[0][j] = fields2->psilm[0][j]+fields->psim[1][0][j];
}
}
if ((firstrow+numrows) == im-1) {
for(j=firstcol;j<=lastcol;j++) {
fields2->psilm[im-1][j] = fields2->psilm[im-1][j]+fields->psim[1][im-1][j];
}
}
if (firstcol == 1) {
for(j=firstrow;j<=lastrow;j++) {
fields2->psilm[j][0] = fields2->psilm[j][0]+fields->psim[1][j][0];
}
}
if ((firstcol+numcols) == jm-1) {
for(j=firstrow;j<=lastrow;j++) {
fields2->psilm[j][jm-1] = fields2->psilm[j][jm-1]+fields->psim[1][j][jm-1];
}
}
for(i=firstrow;i<=lastrow;i++) {
for(iindex=firstcol;iindex<=lastcol;iindex++) {
fields2->psilm[i][iindex] = fields2->psilm[i][iindex]+fields->psim[1][i][iindex];
}
}
if (iday >= (long) outday3) {
endflag = 1;
}
}
if ((procid == MASTER) || (do_stats)) {
CLOCK(t1);
gp[procid].total_time = t1-gp[procid].total_time;
}
}