void METIS_PARTGRAPHVKWAY(int *nvtxs, idxtype *xadj, idxtype *adjncy, idxtype *vwgt, idxtype *vsize, int *wgtflag, int *numflag, int *nparts, int *options, int *volume, idxtype *part)
{
METIS_PartGraphVKway(nvtxs, xadj, adjncy, vwgt, vsize, wgtflag, numflag, nparts, options, volume, part);
}
void metis_partgraphvkway__(int *nvtxs, idxtype *xadj, idxtype *adjncy, idxtype *vwgt, idxtype *vsize, int *wgtflag, int *numflag, int *nparts, int *options, int *volume, idxtype *part)
{
METIS_PartGraphVKway(nvtxs, xadj, adjncy, vwgt, vsize, wgtflag, numflag, nparts, options, volume, part);
}
/*************************************************************************
* Let the game begin
**************************************************************************/
int main(int argc, char *argv[])
{
idxtype i, j, istep, options[10], nn, ne, fstep, lstep, nparts, nboxes, u[3], dim, nchanges, ncomm;
char filename[256];
idxtype *mien, *mrng, *part, *oldpart, *sflag, *bestdims, *fepart;
double *mxyz, *bxyz;
idxtype *xadj, *adjncy, *cntptr, *cntind;
idxtype numflag = 0, wgtflag = 0, edgecut, etype=2;
void *cinfo;
FILE *fpin;
long long int *ltmp;
if (argc != 6) {
mfprintf(stderr, "Usage: %s <nn> <ne> <fstep> <lstep> <nparts>\n", argv[0]);
exit(0);
}
nn = atoi(argv[1]);
ne = atoi(argv[2]);
fstep = atoi(argv[3]);
lstep = atoi(argv[4]);
nparts = atoi(argv[5]);
mprintf("Reading %s, nn: %D, ne: %D, fstep: %D, lstep: %D, nparts: %D\n", filename, nn, ne, fstep, lstep, nparts);
mien = idxmalloc(4*ne, "main: mien");
mxyz = gk_dmalloc(3*nn, "main: mxyz");
mrng = idxmalloc(4*ne, "main: mrng");
bxyz = gk_dmalloc(6*ne*4, "main: bxyz");
fepart = idxmalloc(nn, "main: fepart");
part = idxmalloc(nn, "main: part");
oldpart = idxmalloc(nn, "main: oldpart");
sflag = idxmalloc(nn, "main: sflag");
bestdims = idxsmalloc(2*nparts, -1, "main: bestdims");
xadj = idxmalloc(nn+1, "main: xadj");
adjncy = idxmalloc(50*nn, "main: adjncy");
/*========================================================================
* Read the initial mesh and setup the graph and contact information
*========================================================================*/
msprintf(filename, "mien.%04D", fstep);
fpin = GKfopen(filename, "rb", "main: mien");
fread(mien, sizeof(int), 4*ne, fpin);
for (i=0; i<4*ne; i++)
mien[i] = Flip_int32(mien[i]);
GKfclose(fpin);
msprintf(filename, "mxyz.%04D", fstep);
fpin = GKfopen(filename, "rb", "main: mxyz");
fread(mxyz, sizeof(double), 3*nn, fpin);
for (i=0; i<3*nn; i++) {
ltmp = (long long int *)(mxyz+i);
*ltmp = Flip_int64(*ltmp);
}
GKfclose(fpin);
mprintf("%e %e %e\n", mxyz[3*0+0], mxyz[3*0+1], mxyz[3*0+2]);
msprintf(filename, "mrng.%04D", fstep);
fpin = GKfopen(filename, "rb", "main: mrng");
fread(mrng, sizeof(int), 4*ne, fpin);
for (i=0; i<4*ne; i++)
mrng[i] = Flip_int32(mrng[i]);
GKfclose(fpin);
/*========================================================================
* Determine which nodes are in the surface
*========================================================================*/
iset(nn, 0, sflag);
for (i=0; i<ne; i++) {
if (mrng[4*i+0] > 0) { /* 1, 2, 3 */
sflag[mien[4*i+0]-1] = 1;
sflag[mien[4*i+1]-1] = 1;
sflag[mien[4*i+2]-1] = 1;
}
if (mrng[4*i+1] > 0) { /* 1, 2, 4 */
sflag[mien[4*i+0]-1] = 1;
sflag[mien[4*i+1]-1] = 1;
sflag[mien[4*i+3]-1] = 1;
}
if (mrng[4*i+2] > 0) { /* 2, 3, 4 */
sflag[mien[4*i+1]-1] = 1;
sflag[mien[4*i+2]-1] = 1;
sflag[mien[4*i+3]-1] = 1;
}
if (mrng[4*i+3] > 0) { /* 1, 3, 4 */
sflag[mien[4*i+0]-1] = 1;
sflag[mien[4*i+2]-1] = 1;
sflag[mien[4*i+3]-1] = 1;
}
}
mprintf("Contact Nodes: %D of %D\n", isum(nn, sflag), nn);
/*========================================================================
* Compute the FE partition
*========================================================================*/
numflag = mien[idxargmin(4*ne, mien)];
METIS_MeshToNodal(&ne, &nn, mien, &etype, &numflag, xadj, adjncy);
options[0] = 0;
METIS_PartGraphVKway(&nn, xadj, adjncy, NULL, NULL, &wgtflag, &numflag, &nparts,
options, &edgecut, fepart);
mprintf("K-way partitioning Volume: %D\n", edgecut);
/*========================================================================
* Get into the loop in which you go over the different configurations
*========================================================================*/
for (istep=fstep; istep<=lstep; istep++) {
msprintf(filename, "mxyz.%04D", istep);
mprintf("Reading %s...............................................................\n", filename);
fpin = GKfopen(filename, "rb", "main: mxyz");
fread(mxyz, sizeof(double), 3*nn, fpin);
for (i=0; i<3*nn; i++) {
ltmp = (long long int *)(mxyz+i);
*ltmp = Flip_int64(*ltmp);
}
GKfclose(fpin);
msprintf(filename, "mrng.%04D", istep);
fpin = GKfopen(filename, "rb", "main: mrng");
fread(mrng, sizeof(int), 4*ne, fpin);
for (i=0; i<4*ne; i++)
mrng[i] = Flip_int32(mrng[i]);
GKfclose(fpin);
/* Determine which nodes are in the surface */
iset(nn, 0, sflag);
for (i=0; i<ne; i++) {
if (mrng[4*i+0] > 0) { /* 1, 2, 3 */
sflag[mien[4*i+0]-1] = 1;
sflag[mien[4*i+1]-1] = 1;
sflag[mien[4*i+2]-1] = 1;
}
if (mrng[4*i+1] > 0) { /* 1, 2, 4 */
sflag[mien[4*i+0]-1] = 1;
sflag[mien[4*i+1]-1] = 1;
sflag[mien[4*i+3]-1] = 1;
}
if (mrng[4*i+2] > 0) { /* 2, 3, 4 */
sflag[mien[4*i+1]-1] = 1;
sflag[mien[4*i+2]-1] = 1;
sflag[mien[4*i+3]-1] = 1;
}
if (mrng[4*i+3] > 0) { /* 1, 3, 4 */
sflag[mien[4*i+0]-1] = 1;
sflag[mien[4*i+2]-1] = 1;
sflag[mien[4*i+3]-1] = 1;
}
}
mprintf("Contact Nodes: %D of %D\n", isum(nn, sflag), nn);
/* Determine the bounding boxes of the surface elements */
for (nboxes=0, i=0; i<ne; i++) {
if (mrng[4*i+0] > 0) { /* 1, 2, 3 */
u[0] = mien[4*i+0]-1;
u[1] = mien[4*i+1]-1;
u[2] = mien[4*i+2]-1;
bxyz[6*nboxes+0] = bxyz[6*nboxes+3] = mxyz[3*u[0]+0];
bxyz[6*nboxes+1] = bxyz[6*nboxes+4] = mxyz[3*u[0]+1];
bxyz[6*nboxes+2] = bxyz[6*nboxes+5] = mxyz[3*u[0]+2];
for (j=1; j<3; j++) {
for (dim=0; dim<3; dim++) {
bxyz[6*nboxes+dim] = (bxyz[6*nboxes+dim] > mxyz[3*u[j]+dim] ? mxyz[3*u[j]+dim] : bxyz[6*nboxes+dim]);
bxyz[6*nboxes+3+dim] = (bxyz[6*nboxes+3+dim] < mxyz[3*u[j]+dim] ? mxyz[3*u[j]+dim] : bxyz[6*nboxes+3+dim]);
}
}
nboxes++;
}
if (mrng[4*i+1] > 0) { /* 1, 2, 4 */
u[0] = mien[4*i+0]-1;
u[1] = mien[4*i+1]-1;
u[2] = mien[4*i+3]-1;
bxyz[6*nboxes+0] = bxyz[6*nboxes+3] = mxyz[3*u[0]+0];
bxyz[6*nboxes+1] = bxyz[6*nboxes+4] = mxyz[3*u[0]+1];
bxyz[6*nboxes+2] = bxyz[6*nboxes+5] = mxyz[3*u[0]+2];
for (j=1; j<3; j++) {
for (dim=0; dim<3; dim++) {
bxyz[6*nboxes+dim] = (bxyz[6*nboxes+dim] > mxyz[3*u[j]+dim] ? mxyz[3*u[j]+dim] : bxyz[6*nboxes+dim]);
bxyz[6*nboxes+3+dim] = (bxyz[6*nboxes+3+dim] < mxyz[3*u[j]+dim] ? mxyz[3*u[j]+dim] : bxyz[6*nboxes+3+dim]);
}
}
nboxes++;
}
if (mrng[4*i+2] > 0) { /* 2, 3, 4 */
u[0] = mien[4*i+1]-1;
u[1] = mien[4*i+2]-1;
u[2] = mien[4*i+3]-1;
bxyz[6*nboxes+0] = bxyz[6*nboxes+3] = mxyz[3*u[0]+0];
bxyz[6*nboxes+1] = bxyz[6*nboxes+4] = mxyz[3*u[0]+1];
bxyz[6*nboxes+2] = bxyz[6*nboxes+5] = mxyz[3*u[0]+2];
for (j=1; j<3; j++) {
for (dim=0; dim<3; dim++) {
bxyz[6*nboxes+dim] = (bxyz[6*nboxes+dim] > mxyz[3*u[j]+dim] ? mxyz[3*u[j]+dim] : bxyz[6*nboxes+dim]);
bxyz[6*nboxes+3+dim] = (bxyz[6*nboxes+3+dim] < mxyz[3*u[j]+dim] ? mxyz[3*u[j]+dim] : bxyz[6*nboxes+3+dim]);
}
}
nboxes++;
}
if (mrng[4*i+3] > 0) { /* 1, 3, 4 */
u[0] = mien[4*i+0]-1;
u[1] = mien[4*i+2]-1;
u[2] = mien[4*i+3]-1;
bxyz[6*nboxes+0] = bxyz[6*nboxes+3] = mxyz[3*u[0]+0];
bxyz[6*nboxes+1] = bxyz[6*nboxes+4] = mxyz[3*u[0]+1];
bxyz[6*nboxes+2] = bxyz[6*nboxes+5] = mxyz[3*u[0]+2];
for (j=1; j<3; j++) {
for (dim=0; dim<3; dim++) {
bxyz[6*nboxes+dim] = (bxyz[6*nboxes+dim] > mxyz[3*u[j]+dim] ? mxyz[3*u[j]+dim] : bxyz[6*nboxes+dim]);
bxyz[6*nboxes+3+dim] = (bxyz[6*nboxes+3+dim] < mxyz[3*u[j]+dim] ? mxyz[3*u[j]+dim] : bxyz[6*nboxes+3+dim]);
}
}
nboxes++;
}
}
cinfo = METIS_PartSurfForContactRCB(&nn, mxyz, sflag, &nparts, part, bestdims);
METIS_FindContacts(cinfo, &nboxes, bxyz, &nparts, &cntptr, &cntind);
METIS_FreeContactInfo(cinfo);
nchanges = 0;
if (istep > fstep) {
for (i=0; i<nn; i++)
nchanges += (part[i] != oldpart[i] ? 1 : 0);
}
idxcopy(nn, part, oldpart);
ncomm = ComputeMapCost(nn, nparts, fepart, part);
mprintf("Contacting Elements: %D Indices: %D Nchanges: %D MapCost: %D\n", nboxes, cntptr[nboxes]-nboxes, nchanges, ncomm);
gk_free((void **)&cntptr, &cntind, LTERM);
}
}