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mtest.c
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mtest.c
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/*
* Copyright 1997, Regents of the University of Minnesota
*
* mtest.c
*
* This file is a comprehensive tester for all the graph partitioning/ordering
* routines of METIS
*
* Started 9/18/98
* George
*
* $Id: mtest.c,v 1.1 2002/08/10 04:34:53 karypis Exp $
*
*/
#include <metislib.h>
#include "../libmetis/proto.h"
#include "proto.h"
/*************************************************************************
* Let the game begin
**************************************************************************/
int main(int argc, char *argv[])
{
graph_t *graph;
if (argc != 2) {
printf("Usage: %s <GraphFile>\n",argv[0]);
exit(0);
}
graph = ReadGraph(argv[1], &wgtflag);
printf("**********************************************************************\n");
printf("%s", METISTITLE);
printf("Graph Information ---------------------------------------------------\n");
printf(" Name: %s, #Vertices: %"PRIDX", #Edges: %"PRIDX"\n", argv[1], graph.nvtxs, graph.nedges/2);
Test_PartGraph(graph.nvtxs, graph.xadj, graph.adjncy);
Test_PartGraphV(graph.nvtxs, graph.xadj, graph.adjncy);
Test_PartGraphmC(graph.nvtxs, graph.xadj, graph.adjncy);
Test_ND(graph.nvtxs, graph.xadj, graph.adjncy);
printf("\n---------------------------------------------------------------------\n");
printf(" Testing completed.\n");
printf("**********************************************************************\n");
gk_free((void **)&graph.xadj, &graph.adjncy, &graph.vwgt, &graph.adjwgt, LTERM);
}
/*************************************************************************
* This function tests the regular graph partitioning routines
**************************************************************************/
void Test_PartGraph(idx_t nvtxs, idx_t *xadj, idx_t *adjncy)
{
idx_t i, j, jj, k, tstnum, rcode;
idx_t nparts, numflag, wgtflag, edgecut, options[METIS_NOPTIONS];
idx_t *part, *vwgt, *adjwgt;
real_t tpwgts[256];
vwgt = imalloc(nvtxs, "vwgt");
for (i=0; i<nvtxs; i++)
vwgt[i] = RandomInRange(10);
adjwgt = imalloc(xadj[nvtxs], "adjwgt");
for (i=0; i<nvtxs; i++) {
for (j=xadj[i]; j<xadj[i+1]; j++) {
k = adjncy[j];
if (i < k) {
adjwgt[j] = 1+RandomInRange(5);
for (jj=xadj[k]; jj<xadj[k+1]; jj++) {
if (adjncy[jj] == i) {
adjwgt[jj] = adjwgt[j];
break;
}
}
}
}
}
part = imalloc(nvtxs, "part");
tpwgts[0] = .1;
tpwgts[1] = .2;
tpwgts[2] = .3;
tpwgts[3] = .1;
tpwgts[4] = .05;
tpwgts[5] = .25;
/*===========================================================================*/
printf("\nTesting METIS_PartGraphRecursive ------------------------------------\n ");
tstnum = 1;
/**/
numflag = 0; wgtflag = 0; nparts = 20;
options[0] = 0;
METIS_PartGraphRecursive(&nvtxs, xadj, adjncy, NULL, NULL, &wgtflag, &numflag,
&nparts, options, &edgecut, part);
if ((rcode = VerifyPart(nvtxs, xadj, adjncy, NULL, NULL, nparts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 1; nparts = 20;
options[0] = 0;
METIS_PartGraphRecursive(&nvtxs, xadj, adjncy, NULL, adjwgt, &wgtflag, &numflag,
&nparts, options, &edgecut, part);
if ((rcode = VerifyPart(nvtxs, xadj, adjncy, NULL, adjwgt, nparts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 2; nparts = 20;
options[0] = 0;
METIS_PartGraphRecursive(&nvtxs, xadj, adjncy, vwgt, NULL, &wgtflag, &numflag,
&nparts, options, &edgecut, part);
if ((rcode = VerifyPart(nvtxs, xadj, adjncy, vwgt, NULL, nparts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 3; nparts = 20;
options[0] = 0;
METIS_PartGraphRecursive(&nvtxs, xadj, adjncy, vwgt, adjwgt, &wgtflag, &numflag,
&nparts, options, &edgecut, part);
if ((rcode = VerifyPart(nvtxs, xadj, adjncy, vwgt, adjwgt, nparts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 3; nparts = 20;
options[0] = 1; options[1] = 1; options[2] = 1; options[3] = 1; options[4] = 0;
METIS_PartGraphRecursive(&nvtxs, xadj, adjncy, vwgt, adjwgt, &wgtflag, &numflag,
&nparts, options, &edgecut, part);
if ((rcode = VerifyPart(nvtxs, xadj, adjncy, vwgt, adjwgt, nparts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 3; nparts = 20;
options[0] = 1; options[1] = 2; options[2] = 1; options[3] = 1; options[4] = 0;
METIS_PartGraphRecursive(&nvtxs, xadj, adjncy, vwgt, adjwgt, &wgtflag, &numflag,
&nparts, options, &edgecut, part);
if ((rcode = VerifyPart(nvtxs, xadj, adjncy, vwgt, adjwgt, nparts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
printf("\n");
/*===========================================================================*/
printf("\nTesting METIS_WPartGraphRecursive -----------------------------------\n ");
tstnum = 1;
/**/
numflag = 0; wgtflag = 0; nparts = 6;
options[0] = 0;
METIS_WPartGraphRecursive(&nvtxs, xadj, adjncy, NULL, NULL, &wgtflag, &numflag,
&nparts, tpwgts, options, &edgecut, part);
if ((rcode = VerifyWPart(nvtxs, xadj, adjncy, NULL, NULL, nparts, tpwgts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 1; nparts = 6;
options[0] = 0;
METIS_WPartGraphRecursive(&nvtxs, xadj, adjncy, NULL, adjwgt, &wgtflag, &numflag,
&nparts, tpwgts, options, &edgecut, part);
if ((rcode = VerifyWPart(nvtxs, xadj, adjncy, NULL, adjwgt, nparts, tpwgts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 2; nparts = 6;
options[0] = 0;
METIS_WPartGraphRecursive(&nvtxs, xadj, adjncy, vwgt, NULL, &wgtflag, &numflag,
&nparts, tpwgts, options, &edgecut, part);
if ((rcode = VerifyWPart(nvtxs, xadj, adjncy, vwgt, NULL, nparts, tpwgts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 3; nparts = 6;
options[0] = 0;
METIS_WPartGraphRecursive(&nvtxs, xadj, adjncy, vwgt, adjwgt, &wgtflag, &numflag,
&nparts, tpwgts, options, &edgecut, part);
if ((rcode = VerifyWPart(nvtxs, xadj, adjncy, vwgt, adjwgt, nparts, tpwgts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 3; nparts = 6;
options[0] = 1; options[1] = 1; options[2] = 1; options[3] = 1; options[4] = 0;
METIS_WPartGraphRecursive(&nvtxs, xadj, adjncy, vwgt, adjwgt, &wgtflag, &numflag,
&nparts, tpwgts, options, &edgecut, part);
if ((rcode = VerifyWPart(nvtxs, xadj, adjncy, vwgt, adjwgt, nparts, tpwgts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 3; nparts = 6;
options[0] = 1; options[1] = 2; options[2] = 1; options[3] = 1; options[4] = 0;
METIS_WPartGraphRecursive(&nvtxs, xadj, adjncy, vwgt, adjwgt, &wgtflag, &numflag,
&nparts, tpwgts, options, &edgecut, part);
if ((rcode = VerifyWPart(nvtxs, xadj, adjncy, vwgt, adjwgt, nparts, tpwgts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
printf("\n");
/*===========================================================================*/
printf("\nTesting METIS_PartGraphKway -----------------------------------------\n ");
tstnum = 1;
/**/
numflag = 0; wgtflag = 0; nparts = 20;
options[0] = 0;
METIS_PartGraphKway(&nvtxs, xadj, adjncy, NULL, NULL, &wgtflag, &numflag,
&nparts, options, &edgecut, part);
if ((rcode = VerifyPart(nvtxs, xadj, adjncy, NULL, NULL, nparts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 1; nparts = 20;
options[0] = 0;
METIS_PartGraphKway(&nvtxs, xadj, adjncy, NULL, adjwgt, &wgtflag, &numflag,
&nparts, options, &edgecut, part);
if ((rcode = VerifyPart(nvtxs, xadj, adjncy, NULL, adjwgt, nparts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 2; nparts = 20;
options[0] = 0;
METIS_PartGraphKway(&nvtxs, xadj, adjncy, vwgt, NULL, &wgtflag, &numflag,
&nparts, options, &edgecut, part);
if ((rcode = VerifyPart(nvtxs, xadj, adjncy, vwgt, NULL, nparts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 3; nparts = 20;
options[0] = 0;
METIS_PartGraphKway(&nvtxs, xadj, adjncy, vwgt, adjwgt, &wgtflag, &numflag,
&nparts, options, &edgecut, part);
if ((rcode = VerifyPart(nvtxs, xadj, adjncy, vwgt, adjwgt, nparts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 3; nparts = 20;
options[0] = 1; options[1] = 1; options[2] = 1; options[3] = 1; options[4] = 0;
METIS_PartGraphKway(&nvtxs, xadj, adjncy, vwgt, adjwgt, &wgtflag, &numflag,
&nparts, options, &edgecut, part);
if ((rcode = VerifyPart(nvtxs, xadj, adjncy, vwgt, adjwgt, nparts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 3; nparts = 20;
options[0] = 1; options[1] = 2; options[2] = 1; options[3] = 1; options[4] = 0;
METIS_PartGraphKway(&nvtxs, xadj, adjncy, vwgt, adjwgt, &wgtflag, &numflag,
&nparts, options, &edgecut, part);
if ((rcode = VerifyPart(nvtxs, xadj, adjncy, vwgt, adjwgt, nparts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 3; nparts = 20;
options[0] = 1; options[1] = 2; options[2] = 1; options[3] = 2; options[4] = 0;
METIS_PartGraphKway(&nvtxs, xadj, adjncy, vwgt, adjwgt, &wgtflag, &numflag,
&nparts, options, &edgecut, part);
if ((rcode = VerifyPart(nvtxs, xadj, adjncy, vwgt, adjwgt, nparts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 3; nparts = 20;
options[0] = 1; options[1] = 2; options[2] = 1; options[3] = 3; options[4] = 0;
METIS_PartGraphKway(&nvtxs, xadj, adjncy, vwgt, adjwgt, &wgtflag, &numflag,
&nparts, options, &edgecut, part);
if ((rcode = VerifyPart(nvtxs, xadj, adjncy, vwgt, adjwgt, nparts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
printf("\n");
/*===========================================================================*/
printf("\nTesting METIS_WPartGraphKway ----------------------------------------\n ");
tstnum = 1;
/**/
numflag = 0; wgtflag = 0; nparts = 6;
options[0] = 0;
METIS_WPartGraphKway(&nvtxs, xadj, adjncy, NULL, NULL, &wgtflag, &numflag,
&nparts, tpwgts, options, &edgecut, part);
if ((rcode = VerifyWPart(nvtxs, xadj, adjncy, NULL, NULL, nparts, tpwgts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 1; nparts = 6;
options[0] = 0;
METIS_WPartGraphKway(&nvtxs, xadj, adjncy, NULL, adjwgt, &wgtflag, &numflag,
&nparts, tpwgts, options, &edgecut, part);
if ((rcode = VerifyWPart(nvtxs, xadj, adjncy, NULL, adjwgt, nparts, tpwgts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 2; nparts = 6;
options[0] = 0;
METIS_WPartGraphKway(&nvtxs, xadj, adjncy, vwgt, NULL, &wgtflag, &numflag,
&nparts, tpwgts, options, &edgecut, part);
if ((rcode = VerifyWPart(nvtxs, xadj, adjncy, vwgt, NULL, nparts, tpwgts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 3; nparts = 6;
options[0] = 0;
METIS_WPartGraphKway(&nvtxs, xadj, adjncy, vwgt, adjwgt, &wgtflag, &numflag,
&nparts, tpwgts, options, &edgecut, part);
if ((rcode = VerifyWPart(nvtxs, xadj, adjncy, vwgt, adjwgt, nparts, tpwgts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 3; nparts = 6;
options[0] = 1; options[1] = 1; options[2] = 1; options[3] = 1; options[4] = 0;
METIS_WPartGraphKway(&nvtxs, xadj, adjncy, vwgt, adjwgt, &wgtflag, &numflag,
&nparts, tpwgts, options, &edgecut, part);
if ((rcode = VerifyWPart(nvtxs, xadj, adjncy, vwgt, adjwgt, nparts, tpwgts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 3; nparts = 6;
options[0] = 1; options[1] = 2; options[2] = 1; options[3] = 1; options[4] = 0;
METIS_WPartGraphKway(&nvtxs, xadj, adjncy, vwgt, adjwgt, &wgtflag, &numflag,
&nparts, tpwgts, options, &edgecut, part);
if ((rcode = VerifyWPart(nvtxs, xadj, adjncy, vwgt, adjwgt, nparts, tpwgts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 3; nparts = 6;
options[0] = 1; options[1] = 2; options[2] = 1; options[3] = 2; options[4] = 0;
METIS_WPartGraphKway(&nvtxs, xadj, adjncy, vwgt, adjwgt, &wgtflag, &numflag,
&nparts, tpwgts, options, &edgecut, part);
if ((rcode = VerifyWPart(nvtxs, xadj, adjncy, vwgt, adjwgt, nparts, tpwgts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 3; nparts = 6;
options[0] = 1; options[1] = 2; options[2] = 1; options[3] = 3; options[4] = 0;
METIS_WPartGraphKway(&nvtxs, xadj, adjncy, vwgt, adjwgt, &wgtflag, &numflag,
&nparts, tpwgts, options, &edgecut, part);
if ((rcode = VerifyWPart(nvtxs, xadj, adjncy, vwgt, adjwgt, nparts, tpwgts, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
printf("\n");
gk_free((void **)&vwgt, &adjwgt, &part, LTERM);
}
/*************************************************************************
* This function verifies that the partitioning was computed correctly
**************************************************************************/
int VerifyPart(idx_t nvtxs, idx_t *xadj, idx_t *adjncy, idx_t *vwgt,
idx_t *adjwgt, idx_t nparts, idx_t edgecut, idx_t *part)
{
idx_t i, j, k, cut, vfree=0, efree=0, rcode=0;
idx_t *pwgts;
if (part[iargmax(nvtxs, part)] != nparts-1)
return 1; /* the total number of partitions is different than nparts */
/* compute the cut and the pwgts */
if (vwgt == NULL) {
vfree = 1;
vwgt = ismalloc(nvtxs, 1, "vwgt");
}
if (adjwgt == NULL) {
efree = 1;
adjwgt = ismalloc(xadj[nvtxs], 1, "adjwgt");
}
pwgts = ismalloc(nparts, 0, "pwgts");
for (cut=0, i=0; i<nvtxs; i++) {
pwgts[part[i]] += vwgt[i];
for (j=xadj[i]; j<xadj[i+1]; j++)
cut += (part[i] != part[adjncy[j]] ? adjwgt[j] : 0);
}
if (cut != 2*edgecut)
rcode = 2;
if (nparts*pwgts[iargmax(nparts, pwgts)] > 1.10*isum(nparts, pwgts, 1))
rcode = 3;
if (vfree)
gk_free((void **)&vwgt, LTERM);
if (efree)
gk_free((void **)&adjwgt, LTERM);
gk_free((void **)&pwgts, LTERM);
MALLOC_CHECK(NULL);
return rcode;
}
/*************************************************************************
* This function verifies that the partitioning was computed correctly
**************************************************************************/
int VerifyWPart(idx_t nvtxs, idx_t *xadj, idx_t *adjncy, idx_t *vwgt,
idx_t *adjwgt, idx_t nparts, real_t *tpwgts, idx_t edgecut, idx_t *part)
{
idx_t i, j, k, tvwgt, cut, vfree=0, efree=0, rcode=0;
idx_t *pwgts;
if (part[iargmax(nvtxs, part)] != nparts-1)
return 1; /* the total number of partitions is different than nparts */
/* compute the cut and the pwgts */
if (vwgt == NULL) {
vfree = 1;
vwgt = ismalloc(nvtxs, 1, "vwgt");
}
if (adjwgt == NULL) {
efree = 1;
adjwgt = ismalloc(xadj[nvtxs], 1, "adjwgt");
}
pwgts = ismalloc(nparts, 0, "pwgts");
for (cut=0, i=0; i<nvtxs; i++) {
pwgts[part[i]] += vwgt[i];
for (j=xadj[i]; j<xadj[i+1]; j++)
cut += (part[i] != part[adjncy[j]] ? adjwgt[j] : 0);
}
if (cut != 2*edgecut)
rcode = 2;
tvwgt = isum(nparts, pwgts, 1);
for (i=0; i<nparts; i++) {
if (pwgts[i] > 1.10*tpwgts[i]*tvwgt) {
rcode = 3;
break;
}
}
if (vfree)
gk_free((void **)&vwgt, LTERM);
if (efree)
gk_free((void **)&adjwgt, LTERM);
gk_free((void **)&pwgts, LTERM);
MALLOC_CHECK(NULL);
return rcode;
}
/*************************************************************************
* This function tests the regular graph partitioning routines
**************************************************************************/
void Test_PartGraphV(idx_t nvtxs, idx_t *xadj, idx_t *adjncy)
{
idx_t i, j, jj, k, tstnum, rcode;
idx_t nparts, numflag, wgtflag, totalv, options[10];
idx_t *part, *vwgt, *vsize;
real_t tpwgts[256];
vwgt = imalloc(nvtxs, "vwgt");
for (i=0; i<nvtxs; i++)
vwgt[i] = RandomInRange(10);
vsize = imalloc(nvtxs, "vsize");
for (i=0; i<nvtxs; i++)
vsize[i] = RandomInRange(10);
part = imalloc(nvtxs, "part");
tpwgts[0] = .1;
tpwgts[1] = .2;
tpwgts[2] = .3;
tpwgts[3] = .1;
tpwgts[4] = .05;
tpwgts[5] = .25;
/*===========================================================================*/
printf("\nTesting METIS_PartGraphVKway ----------------------------------------\n ");
tstnum = 1;
/**/
numflag = 0; wgtflag = 0; nparts = 20;
options[0] = 0;
METIS_PartGraphVKway(&nvtxs, xadj, adjncy, NULL, NULL, &wgtflag, &numflag,
&nparts, options, &totalv, part);
if ((rcode = VerifyPartV(nvtxs, xadj, adjncy, NULL, NULL, nparts, totalv, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 1; nparts = 20;
options[0] = 0;
METIS_PartGraphVKway(&nvtxs, xadj, adjncy, NULL, vsize, &wgtflag, &numflag,
&nparts, options, &totalv, part);
if ((rcode = VerifyPartV(nvtxs, xadj, adjncy, NULL, vsize, nparts, totalv, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 2; nparts = 20;
options[0] = 0;
METIS_PartGraphVKway(&nvtxs, xadj, adjncy, vwgt, NULL, &wgtflag, &numflag,
&nparts, options, &totalv, part);
if ((rcode = VerifyPartV(nvtxs, xadj, adjncy, vwgt, NULL, nparts, totalv, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 3; nparts = 20;
options[0] = 0;
METIS_PartGraphVKway(&nvtxs, xadj, adjncy, vwgt, vsize, &wgtflag, &numflag,
&nparts, options, &totalv, part);
if ((rcode = VerifyPartV(nvtxs, xadj, adjncy, vwgt, vsize, nparts, totalv, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 3; nparts = 20;
options[0] = 1; options[1] = 1; options[2] = 1; options[3] = 1; options[4] = 0;
METIS_PartGraphVKway(&nvtxs, xadj, adjncy, vwgt, vsize, &wgtflag, &numflag,
&nparts, options, &totalv, part);
if ((rcode = VerifyPartV(nvtxs, xadj, adjncy, vwgt, vsize, nparts, totalv, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 3; nparts = 20;
options[0] = 1; options[1] = 2; options[2] = 1; options[3] = 1; options[4] = 0;
METIS_PartGraphVKway(&nvtxs, xadj, adjncy, vwgt, vsize, &wgtflag, &numflag,
&nparts, options, &totalv, part);
if ((rcode = VerifyPartV(nvtxs, xadj, adjncy, vwgt, vsize, nparts, totalv, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 3; nparts = 20;
options[0] = 1; options[1] = 3; options[2] = 1; options[3] = 3; options[4] = 0;
METIS_PartGraphVKway(&nvtxs, xadj, adjncy, vwgt, vsize, &wgtflag, &numflag,
&nparts, options, &totalv, part);
if ((rcode = VerifyPartV(nvtxs, xadj, adjncy, vwgt, vsize, nparts, totalv, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
printf("\n");
/*===========================================================================*/
printf("\nTesting METIS_WPartGraphVKway ---------------------------------------\n ");
tstnum = 1;
/**/
numflag = 0; wgtflag = 0; nparts = 6;
options[0] = 0;
METIS_WPartGraphVKway(&nvtxs, xadj, adjncy, NULL, NULL, &wgtflag, &numflag,
&nparts, tpwgts, options, &totalv, part);
if ((rcode = VerifyWPartV(nvtxs, xadj, adjncy, NULL, NULL, nparts, tpwgts, totalv, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 1; nparts = 6;
options[0] = 0;
METIS_WPartGraphVKway(&nvtxs, xadj, adjncy, NULL, vsize, &wgtflag, &numflag,
&nparts, tpwgts, options, &totalv, part);
if ((rcode = VerifyWPartV(nvtxs, xadj, adjncy, NULL, vsize, nparts, tpwgts, totalv, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 2; nparts = 6;
options[0] = 0;
METIS_WPartGraphVKway(&nvtxs, xadj, adjncy, vwgt, NULL, &wgtflag, &numflag,
&nparts, tpwgts, options, &totalv, part);
if ((rcode = VerifyWPartV(nvtxs, xadj, adjncy, vwgt, NULL, nparts, tpwgts, totalv, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 3; nparts = 6;
options[0] = 0;
METIS_WPartGraphVKway(&nvtxs, xadj, adjncy, vwgt, vsize, &wgtflag, &numflag,
&nparts, tpwgts, options, &totalv, part);
if ((rcode = VerifyWPartV(nvtxs, xadj, adjncy, vwgt, vsize, nparts, tpwgts, totalv, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 3; nparts = 6;
options[0] = 1; options[1] = 1; options[2] = 1; options[3] = 1; options[4] = 0;
METIS_WPartGraphVKway(&nvtxs, xadj, adjncy, vwgt, vsize, &wgtflag, &numflag,
&nparts, tpwgts, options, &totalv, part);
if ((rcode = VerifyWPartV(nvtxs, xadj, adjncy, vwgt, vsize, nparts, tpwgts, totalv, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 3; nparts = 6;
options[0] = 1; options[1] = 2; options[2] = 1; options[3] = 1; options[4] = 0;
METIS_WPartGraphVKway(&nvtxs, xadj, adjncy, vwgt, vsize, &wgtflag, &numflag,
&nparts, tpwgts, options, &totalv, part);
if ((rcode = VerifyWPartV(nvtxs, xadj, adjncy, vwgt, vsize, nparts, tpwgts, totalv, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/
numflag = 0; wgtflag = 3; nparts = 6;
options[0] = 1; options[1] = 2; options[2] = 1; options[3] = 3; options[4] = 0;
METIS_WPartGraphVKway(&nvtxs, xadj, adjncy, vwgt, vsize, &wgtflag, &numflag,
&nparts, tpwgts, options, &totalv, part);
if ((rcode = VerifyWPartV(nvtxs, xadj, adjncy, vwgt, vsize, nparts, tpwgts, totalv, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
printf("\n");
gk_free((void **)&vwgt, &vsize, &part, LTERM);
}
/*************************************************************************
* This function verifies that the partitioning was computed correctly
**************************************************************************/
int VerifyPartV(idx_t nvtxs, idx_t *xadj, idx_t *adjncy, idx_t *vwgt,
idx_t *vsize, idx_t nparts, idx_t totalv, idx_t *part)
{
idx_t i, j, k, ttlv, vfree=0, efree=0, rcode=0;
idx_t *pwgts, *marker;
if (part[iargmax(nvtxs, part)] != nparts-1)
return 1; /* the total number of partitions is different than nparts */
/* compute the cut and the pwgts */
if (vwgt == NULL) {
vfree = 1;
vwgt = ismalloc(nvtxs, 1, "vwgt");
}
if (vsize == NULL) {
efree = 1;
vsize = ismalloc(nvtxs, 1, "vsize");
}
pwgts = ismalloc(nparts, 0, "pwgts");
marker = ismalloc(nparts, -1, "htable");
for (ttlv=0, i=0; i<nvtxs; i++) {
pwgts[part[i]] += vwgt[i];
marker[part[i]] = i;
for (j=xadj[i]; j<xadj[i+1]; j++) {
if (marker[part[adjncy[j]]] != i) {
ttlv += vsize[i];
marker[part[adjncy[j]]] = i;
}
}
}
if (ttlv != totalv)
rcode = 2;
if (nparts*pwgts[iargmax(nparts, pwgts)] > 1.05*isum(nparts, pwgts, 1))
rcode = 3;
if (vfree)
gk_free((void **)&vwgt, LTERM);
if (efree)
gk_free((void **)&vsize, LTERM);
gk_free((void **)&pwgts, &marker, LTERM);
MALLOC_CHECK(NULL);
return rcode;
}
/*************************************************************************
* This function verifies that the partitioning was computed correctly
**************************************************************************/
int VerifyWPartV(idx_t nvtxs, idx_t *xadj, idx_t *adjncy, idx_t *vwgt,
idx_t *vsize, idx_t nparts, real_t *tpwgts, idx_t totalv,
idx_t *part)
{
idx_t i, j, k, tvwgt, ttlv, vfree=0, efree=0, rcode=0;
idx_t *pwgts, *marker;
if (part[iargmax(nvtxs, part)] != nparts-1)
return 1; /* the total number of partitions is different than nparts */
/* compute the cut and the pwgts */
if (vwgt == NULL) {
vfree = 1;
vwgt = ismalloc(nvtxs, 1, "vwgt");
}
if (vsize == NULL) {
efree = 1;
vsize = ismalloc(nvtxs, 1, "vsize");
}
pwgts = ismalloc(nparts, 0, "pwgts");
marker = ismalloc(nparts, -1, "htable");
for (ttlv=0, i=0; i<nvtxs; i++) {
pwgts[part[i]] += vwgt[i];
marker[part[i]] = i;
for (j=xadj[i]; j<xadj[i+1]; j++) {
if (marker[part[adjncy[j]]] != i) {
ttlv += vsize[i];
marker[part[adjncy[j]]] = i;
}
}
}
if (ttlv != totalv)
rcode = 2;
tvwgt = isum(nparts, pwgts, 1);
for (i=0; i<nparts; i++) {
if (pwgts[i] > 1.05*tpwgts[i]*tvwgt) {
rcode = 3;
break;
}
}
if (vfree)
gk_free((void **)&vwgt, LTERM);
if (efree)
gk_free((void **)&vsize, LTERM);
gk_free((void **)&pwgts, &marker, LTERM);
MALLOC_CHECK(NULL);
return rcode;
}
/*************************************************************************
* This function tests the regular graph partitioning routines
**************************************************************************/
void Test_PartGraphmC(idx_t nvtxs, idx_t *xadj, idx_t *adjncy)
{
idx_t i, j, jj, k, tstnum, rcode;
idx_t nparts, ncon, numflag, wgtflag, edgecut, options[10];
idx_t *part, *vwgt, *adjwgt;
real_t ubvec[MAXNCON];
ncon = 3;
vwgt = imalloc(nvtxs*ncon, "vwgt");
for (i=0; i<ncon*nvtxs; i++)
vwgt[i] = RandomInRange(10);
adjwgt = imalloc(xadj[nvtxs], "adjwgt");
for (i=0; i<nvtxs; i++) {
for (j=xadj[i]; j<xadj[i+1]; j++) {
k = adjncy[j];
if (i < k) {
adjwgt[j] = 1+RandomInRange(5);
for (jj=xadj[k]; jj<xadj[k+1]; jj++) {
if (adjncy[jj] == i) {
adjwgt[jj] = adjwgt[j];
break;
}
}
}
}
}
part = imalloc(nvtxs, "part");
/*===========================================================================*/
printf("\nTesting METIS_mCPartGraphRecursive ----------------------------------\n ");
tstnum = 1;
/**/
numflag = 0; wgtflag = 0; nparts = 10;
ubvec[0] = 1.05; ubvec[1] = 1.05; ubvec[2] = 1.05;
options[0] = 0;
METIS_mCPartGraphRecursive(&nvtxs, &ncon, xadj, adjncy, vwgt, NULL, &wgtflag, &numflag,
&nparts, options, &edgecut, part);
if ((rcode = VerifyPartmC(nvtxs, ncon, xadj, adjncy, vwgt, NULL, nparts, ubvec, edgecut, part)) == 0)
printf("[%"PRIDX":ok]", tstnum++);
else
printf("[%"PRIDX":err-%"PRIDX"]", tstnum++, rcode);
fflush(stdout);
/**/