diff options
Diffstat (limited to 'benchmarks/CUDA/DG/3rdParty/ParMetis-3.1/METISLib/fm.c')
| -rw-r--r-- | benchmarks/CUDA/DG/3rdParty/ParMetis-3.1/METISLib/fm.c | 194 |
1 files changed, 0 insertions, 194 deletions
diff --git a/benchmarks/CUDA/DG/3rdParty/ParMetis-3.1/METISLib/fm.c b/benchmarks/CUDA/DG/3rdParty/ParMetis-3.1/METISLib/fm.c deleted file mode 100644 index 2fc08d2..0000000 --- a/benchmarks/CUDA/DG/3rdParty/ParMetis-3.1/METISLib/fm.c +++ /dev/null @@ -1,194 +0,0 @@ -/* - * Copyright 1997, Regents of the University of Minnesota - * - * fm.c - * - * This file contains code that implements the edge-based FM refinement - * - * Started 7/23/97 - * George - * - * $Id: fm.c,v 1.1 2003/07/16 15:55:02 karypis Exp $ - */ - -#include <metis.h> - - -/************************************************************************* -* This function performs an edge-based FM refinement -**************************************************************************/ -void FM_2WayEdgeRefine(CtrlType *ctrl, GraphType *graph, int *tpwgts, int npasses) -{ - int i, ii, j, k, kwgt, nvtxs, nbnd, nswaps, from, to, pass, me, limit, tmp; - idxtype *xadj, *vwgt, *adjncy, *adjwgt, *where, *id, *ed, *bndptr, *bndind, *pwgts; - idxtype *moved, *swaps, *perm; - PQueueType parts[2]; - int higain, oldgain, mincut, mindiff, origdiff, initcut, newcut, mincutorder, avgvwgt; - - nvtxs = graph->nvtxs; - xadj = graph->xadj; - vwgt = graph->vwgt; - adjncy = graph->adjncy; - adjwgt = graph->adjwgt; - where = graph->where; - id = graph->id; - ed = graph->ed; - pwgts = graph->pwgts; - bndptr = graph->bndptr; - bndind = graph->bndind; - - moved = idxwspacemalloc(ctrl, nvtxs); - swaps = idxwspacemalloc(ctrl, nvtxs); - perm = idxwspacemalloc(ctrl, nvtxs); - - limit = amin(amax(0.01*nvtxs, 15), 100); - avgvwgt = amin((pwgts[0]+pwgts[1])/20, 2*(pwgts[0]+pwgts[1])/nvtxs); - - tmp = graph->adjwgtsum[idxamax(nvtxs, graph->adjwgtsum)]; - PQueueInit(ctrl, &parts[0], nvtxs, tmp); - PQueueInit(ctrl, &parts[1], nvtxs, tmp); - - IFSET(ctrl->dbglvl, DBG_REFINE, - printf("Partitions: [%6d %6d] T[%6d %6d], Nv-Nb[%6d %6d]. ICut: %6d\n", - pwgts[0], pwgts[1], tpwgts[0], tpwgts[1], graph->nvtxs, graph->nbnd, graph->mincut)); - - origdiff = abs(tpwgts[0]-pwgts[0]); - idxset(nvtxs, -1, moved); - for (pass=0; pass<npasses; pass++) { /* Do a number of passes */ - PQueueReset(&parts[0]); - PQueueReset(&parts[1]); - - mincutorder = -1; - newcut = mincut = initcut = graph->mincut; - mindiff = abs(tpwgts[0]-pwgts[0]); - - ASSERT(ComputeCut(graph, where) == graph->mincut); - ASSERT(CheckBnd(graph)); - - /* Insert boundary nodes in the priority queues */ - nbnd = graph->nbnd; - RandomPermute(nbnd, perm, 1); - for (ii=0; ii<nbnd; ii++) { - i = perm[ii]; - ASSERT(ed[bndind[i]] > 0 || id[bndind[i]] == 0); - ASSERT(bndptr[bndind[i]] != -1); - PQueueInsert(&parts[where[bndind[i]]], bndind[i], ed[bndind[i]]-id[bndind[i]]); - } - - for (nswaps=0; nswaps<nvtxs; nswaps++) { - from = (tpwgts[0]-pwgts[0] < tpwgts[1]-pwgts[1] ? 0 : 1); - to = (from+1)%2; - - if ((higain = PQueueGetMax(&parts[from])) == -1) - break; - ASSERT(bndptr[higain] != -1); - - newcut -= (ed[higain]-id[higain]); - INC_DEC(pwgts[to], pwgts[from], vwgt[higain]); - - if ((newcut < mincut && abs(tpwgts[0]-pwgts[0]) <= origdiff+avgvwgt) || - (newcut == mincut && abs(tpwgts[0]-pwgts[0]) < mindiff)) { - mincut = newcut; - mindiff = abs(tpwgts[0]-pwgts[0]); - mincutorder = nswaps; - } - else if (nswaps-mincutorder > limit) { /* We hit the limit, undo last move */ - newcut += (ed[higain]-id[higain]); - INC_DEC(pwgts[from], pwgts[to], vwgt[higain]); - break; - } - - where[higain] = to; - moved[higain] = nswaps; - swaps[nswaps] = higain; - - IFSET(ctrl->dbglvl, DBG_MOVEINFO, - printf("Moved %6d from %d. [%3d %3d] %5d [%4d %4d]\n", higain, from, ed[higain]-id[higain], vwgt[higain], newcut, pwgts[0], pwgts[1])); - - /************************************************************** - * Update the id[i]/ed[i] values of the affected nodes - ***************************************************************/ - SWAP(id[higain], ed[higain], tmp); - if (ed[higain] == 0 && xadj[higain] < xadj[higain+1]) - BNDDelete(nbnd, bndind, bndptr, higain); - - for (j=xadj[higain]; j<xadj[higain+1]; j++) { - k = adjncy[j]; - oldgain = ed[k]-id[k]; - - kwgt = (to == where[k] ? adjwgt[j] : -adjwgt[j]); - INC_DEC(id[k], ed[k], kwgt); - - /* Update its boundary information and queue position */ - if (bndptr[k] != -1) { /* If k was a boundary vertex */ - if (ed[k] == 0) { /* Not a boundary vertex any more */ - BNDDelete(nbnd, bndind, bndptr, k); - if (moved[k] == -1) /* Remove it if in the queues */ - PQueueDelete(&parts[where[k]], k, oldgain); - } - else { /* If it has not been moved, update its position in the queue */ - if (moved[k] == -1) - PQueueUpdate(&parts[where[k]], k, oldgain, ed[k]-id[k]); - } - } - else { - if (ed[k] > 0) { /* It will now become a boundary vertex */ - BNDInsert(nbnd, bndind, bndptr, k); - if (moved[k] == -1) - PQueueInsert(&parts[where[k]], k, ed[k]-id[k]); - } - } - } - - } - - - /**************************************************************** - * Roll back computations - *****************************************************************/ - for (i=0; i<nswaps; i++) - moved[swaps[i]] = -1; /* reset moved array */ - for (nswaps--; nswaps>mincutorder; nswaps--) { - higain = swaps[nswaps]; - - to = where[higain] = (where[higain]+1)%2; - SWAP(id[higain], ed[higain], tmp); - if (ed[higain] == 0 && bndptr[higain] != -1 && xadj[higain] < xadj[higain+1]) - BNDDelete(nbnd, bndind, bndptr, higain); - else if (ed[higain] > 0 && bndptr[higain] == -1) - BNDInsert(nbnd, bndind, bndptr, higain); - - INC_DEC(pwgts[to], pwgts[(to+1)%2], vwgt[higain]); - for (j=xadj[higain]; j<xadj[higain+1]; j++) { - k = adjncy[j]; - - kwgt = (to == where[k] ? adjwgt[j] : -adjwgt[j]); - INC_DEC(id[k], ed[k], kwgt); - - if (bndptr[k] != -1 && ed[k] == 0) - BNDDelete(nbnd, bndind, bndptr, k); - if (bndptr[k] == -1 && ed[k] > 0) - BNDInsert(nbnd, bndind, bndptr, k); - } - } - - IFSET(ctrl->dbglvl, DBG_REFINE, - printf("\tMinimum cut: %6d at %5d, PWGTS: [%6d %6d], NBND: %6d\n", mincut, mincutorder, pwgts[0], pwgts[1], nbnd)); - - graph->mincut = mincut; - graph->nbnd = nbnd; - - if (mincutorder == -1 || mincut == initcut) - break; - } - - PQueueFree(ctrl, &parts[0]); - PQueueFree(ctrl, &parts[1]); - - idxwspacefree(ctrl, nvtxs); - idxwspacefree(ctrl, nvtxs); - idxwspacefree(ctrl, nvtxs); - -} - - |
