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pulp_vec.cpp
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#include <mpi.h>
#include <omp.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include "comms.h"
#include "pulp_data.h"
#include "pulp_util.h"
#include "pulp_vec.h"
#include "util.h"
#include "xtrapulp.h"
//#define X 1.0
//#define Y 0.25
#define CUT_CHANGE 0.95
#define BAL_CHANGE 0.95
#define BAL_CUTOFF 1.05
extern int procid, nprocs;
extern int seed;
extern bool verbose, debug, verify;
extern float X, Y;
int pulp_vec(dist_graph_t* g, mpi_data_t* comm, queue_data_t* q,
pulp_data_t* pulp, uint64_t outer_iter, uint64_t balance_iter,
uint64_t refine_iter, double vert_balance, double edge_balance) {
if (debug) {
printf("Task %d pulp_vec() start\n", procid);
}
double elt = 0.0;
if (verbose) {
MPI_Barrier(MPI_COMM_WORLD);
elt = omp_get_wtime();
}
q->queue_size = 0;
q->next_size = 0;
q->send_size = 0;
for (int32_t i = 0; i < nprocs; ++i) comm->sendcounts_temp[i] = 0;
pulp->avg_cut_size = (double)pulp->cut_size / (double)pulp->num_parts;
pulp->max_v = 0.0;
pulp->max_e = 0.0;
pulp->max_c = 0.0;
pulp->max_cut = 0;
for (int p = 0; p < pulp->num_parts; ++p) {
if ((double)pulp->part_sizes[p] / pulp->avg_size > pulp->max_v)
pulp->max_v = (double)pulp->part_sizes[p] / pulp->avg_size;
if ((double)pulp->part_edge_sizes[p] / pulp->avg_edge_size > pulp->max_e)
pulp->max_e = (double)pulp->part_edge_sizes[p] / pulp->avg_edge_size;
if ((double)pulp->part_cut_sizes[p] / pulp->avg_cut_size > pulp->max_c)
pulp->max_c = (double)pulp->part_cut_sizes[p] / pulp->avg_cut_size;
if (pulp->part_cut_sizes[p] > pulp->max_cut)
pulp->max_cut = pulp->part_cut_sizes[p];
}
if (pulp->max_e < edge_balance) {
pulp->max_e = edge_balance;
pulp->weight_exponent_e = 1.0;
pulp->weight_exponent_c *= pulp->max_c;
} else {
pulp->weight_exponent_e *= pulp->max_e / edge_balance;
pulp->weight_exponent_c = 1.0;
}
double tot_iter = (double)(outer_iter * (refine_iter + balance_iter));
double cur_iter = 0.0;
double multiplier = (double)nprocs * ((X - Y) * (cur_iter / tot_iter) + Y);
// double running_bal = pulp->max_e;
// double running_cut = (double)pulp->cut_size;
// uint64_t num_tries = 3;
uint64_t num_swapped_1 = 0;
uint64_t num_swapped_2 = 0;
comm->global_queue_size = 1;
#pragma omp parallel default(shared)
{
thread_queue_t tq;
thread_comm_t tc;
thread_pulp_t tp;
init_thread_queue(&tq);
init_thread_comm(&tc);
init_thread_pulp(&tp, pulp);
xs1024star_t xs;
xs1024star_seed((uint64_t)(seed + omp_get_thread_num()), &xs);
for (uint64_t cur_outer_iter = 0; cur_outer_iter < outer_iter;
++cur_outer_iter) {
#pragma omp single
{
// if (procid == 0) printf("EVAL ec VEC EB
// ------------------------------\n"); part_eval(g, pulp);
update_pulp_data(g, pulp);
num_swapped_1 = 0;
}
for (uint64_t cur_bal_iter = 0; cur_bal_iter < balance_iter;
++cur_bal_iter) {
for (int32_t p = 0; p < pulp->num_parts; ++p) {
tp.part_weights[p] =
vert_balance * pulp->avg_size / (double)pulp->part_sizes[p] - 1.0;
tp.part_edge_weights[p] = pulp->max_e * pulp->avg_edge_size /
(double)pulp->part_edge_sizes[p] -
1.0;
tp.part_cut_weights[p] = pulp->max_c * pulp->avg_cut_size /
(double)pulp->part_cut_sizes[p] -
1.0;
if (tp.part_weights[p] < 0.0) tp.part_weights[p] = 0.0;
if (tp.part_edge_weights[p] < 0.0) tp.part_edge_weights[p] = 0.0;
if (tp.part_cut_weights[p] < 0.0) tp.part_cut_weights[p] = 0.0;
}
#pragma omp for schedule(guided) reduction(+ : num_swapped_1) nowait
for (uint64_t vert_index = 0; vert_index < g->n_local; ++vert_index) {
int32_t part = pulp->local_parts[vert_index];
for (int32_t p = 0; p < pulp->num_parts; ++p) tp.part_counts[p] = 0.0;
uint64_t out_degree = out_degree(g, vert_index);
uint64_t* outs = out_vertices(g, vert_index);
for (uint64_t j = 0; j < out_degree; ++j) {
uint64_t out_index = outs[j];
int32_t part_out = pulp->local_parts[out_index];
tp.part_counts[part_out] += 1.0;
}
int32_t max_part = part;
double max_val = 0.0;
uint64_t num_max = 0;
int64_t max_count = 0;
int64_t part_count = (int64_t)tp.part_counts[part];
for (int32_t p = 0; p < pulp->num_parts; ++p) {
int64_t count_init = (int64_t)tp.part_counts[p];
if (tp.part_weights[p] > 0.0 && tp.part_edge_weights[p] > 0.0 &&
tp.part_cut_weights[p] > 0.0)
tp.part_counts[p] *=
(tp.part_edge_weights[p] * pulp->weight_exponent_e *
tp.part_cut_weights[p] * pulp->weight_exponent_c);
else
tp.part_counts[p] = 0.0;
if (tp.part_counts[p] == max_val) {
tp.part_counts[num_max++] = (double)p;
} else if (tp.part_counts[p] > max_val) {
max_val = tp.part_counts[p];
max_part = p;
max_count = count_init;
num_max = 0;
tp.part_counts[num_max++] = (double)p;
}
}
if (num_max > 1)
max_part =
(int32_t)tp.part_counts[(xs1024star_next(&xs) % num_max)];
if (max_part != part) {
++num_swapped_1;
int64_t diff_part = 2 * part_count - (int64_t)out_degree;
int64_t diff_max_part = (int64_t)(out_degree)-2 * max_count;
int64_t diff_cut = part_count - max_count;
#pragma omp atomic
pulp->cut_size_change += diff_cut;
#pragma omp atomic
pulp->part_cut_size_changes[part] += diff_part;
#pragma omp atomic
pulp->part_cut_size_changes[max_part] += diff_max_part;
#pragma omp atomic
--pulp->part_size_changes[part];
#pragma omp atomic
++pulp->part_size_changes[max_part];
#pragma omp atomic
pulp->part_edge_size_changes[part] -= (int64_t)out_degree;
#pragma omp atomic
pulp->part_edge_size_changes[max_part] += (int64_t)out_degree;
tp.part_weights[part] =
vert_balance * pulp->avg_size /
((double)pulp->part_sizes[part] +
multiplier * (double)pulp->part_size_changes[part]) -
1.0;
tp.part_weights[max_part] =
vert_balance * pulp->avg_size /
((double)pulp->part_sizes[max_part] +
multiplier * (double)pulp->part_size_changes[max_part]) -
1.0;
tp.part_edge_weights[part] =
pulp->max_e * pulp->avg_edge_size /
((double)pulp->part_edge_sizes[part] +
multiplier * (double)pulp->part_edge_size_changes[part]) -
1.0;
tp.part_edge_weights[max_part] =
pulp->max_e * pulp->avg_edge_size /
((double)pulp->part_edge_sizes[max_part] +
multiplier *
(double)pulp->part_edge_size_changes[max_part]) -
1.0;
double avg_cut_size =
(double)pulp->cut_size / (double)pulp->num_parts;
tp.part_cut_weights[part] =
pulp->max_c * avg_cut_size /
((double)pulp->part_cut_sizes[part] +
multiplier * (double)pulp->part_cut_size_changes[part]) -
1.0;
tp.part_cut_weights[max_part] =
pulp->max_c * avg_cut_size /
((double)pulp->part_cut_sizes[max_part] +
multiplier *
(double)pulp->part_cut_size_changes[max_part]) -
1.0;
if (tp.part_weights[part] < 0.0) tp.part_weights[part] = 0.0;
if (tp.part_weights[max_part] < 0.0)
tp.part_weights[max_part] = 0.0;
if (tp.part_edge_weights[part] < 0.0)
tp.part_edge_weights[part] = 0.0;
if (tp.part_edge_weights[max_part] < 0.0)
tp.part_edge_weights[max_part] = 0.0;
if (tp.part_cut_weights[part] < 0.0)
tp.part_cut_weights[part] = 0.0;
if (tp.part_cut_weights[max_part] < 0.0)
tp.part_cut_weights[max_part] = 0.0;
pulp->local_parts[vert_index] = max_part;
add_vid_to_send(&tq, q, vert_index);
// add_vid_to_queue(&tq, q, vert_index);
}
}
empty_send(&tq, q);
// empty_queue(&tq, q);
#pragma omp barrier
for (int32_t i = 0; i < nprocs; ++i) tc.sendcounts_thread[i] = 0;
#pragma omp for schedule(guided) nowait
for (uint64_t i = 0; i < q->send_size; ++i) {
uint64_t vert_index = q->queue_send[i];
update_sendcounts_thread(g, &tc, vert_index);
}
for (int32_t i = 0; i < nprocs; ++i) {
#pragma omp atomic
comm->sendcounts_temp[i] += tc.sendcounts_thread[i];
tc.sendcounts_thread[i] = 0;
}
#pragma omp barrier
#pragma omp single
{ init_sendbuf_vid_data(comm); }
#pragma omp for schedule(guided) nowait
for (uint64_t i = 0; i < q->send_size; ++i) {
uint64_t vert_index = q->queue_send[i];
update_vid_data_queues(g, &tc, comm, vert_index,
pulp->local_parts[vert_index]);
}
empty_vid_data(&tc, comm);
#pragma omp barrier
#pragma omp single
{ exchange_vert_data(g, comm, q); } // end single
#pragma omp for
for (uint64_t i = 0; i < comm->total_recv; ++i) {
uint64_t index = get_value(g->map, comm->recvbuf_vert[i]);
pulp->local_parts[index] = comm->recvbuf_data[i];
}
#pragma omp single
{
clear_recvbuf_vid_data(comm);
MPI_Allreduce(MPI_IN_PLACE, pulp->part_size_changes, pulp->num_parts,
MPI_INT64_T, MPI_SUM, MPI_COMM_WORLD);
MPI_Allreduce(MPI_IN_PLACE, pulp->part_edge_size_changes,
pulp->num_parts, MPI_INT64_T, MPI_SUM, MPI_COMM_WORLD);
MPI_Allreduce(MPI_IN_PLACE, pulp->part_cut_size_changes,
pulp->num_parts, MPI_INT64_T, MPI_SUM, MPI_COMM_WORLD);
MPI_Allreduce(MPI_IN_PLACE, &pulp->cut_size_change, 1, MPI_INT64_T,
MPI_SUM, MPI_COMM_WORLD);
pulp->cut_size += pulp->cut_size_change;
pulp->cut_size_change = 0;
pulp->avg_cut_size = (double)pulp->cut_size / (double)pulp->num_parts;
pulp->max_v = 0.0;
pulp->max_e = 0.0;
pulp->max_c = 0.0;
pulp->max_cut = 0;
// if (procid == 0)
// for (int32_t i = 0; i < pulp->num_parts; ++i)
// printf("p: %d, v: %li, e: %li, cut: %li\n",
// i, pulp->part_sizes[i], pulp->part_edge_sizes[i],
// pulp->part_cut_sizes[i]);
// part_eval(g, pulp);
for (int32_t p = 0; p < pulp->num_parts; ++p) {
// if (procid == 0)
// printf("p: %d, vc: %li, ec: %li, cc: %li\n", p,
// pulp->part_size_changes[p], pulp->part_edge_size_changes[p],
// pulp->part_cut_size_changes[p]);
pulp->part_sizes[p] += pulp->part_size_changes[p];
pulp->part_edge_sizes[p] += pulp->part_edge_size_changes[p];
pulp->part_cut_sizes[p] += pulp->part_cut_size_changes[p];
pulp->part_size_changes[p] = 0;
pulp->part_edge_size_changes[p] = 0;
pulp->part_cut_size_changes[p] = 0;
if ((double)pulp->part_sizes[p] / pulp->avg_size > pulp->max_v)
pulp->max_v = (double)pulp->part_sizes[p] / pulp->avg_size;
if ((double)pulp->part_edge_sizes[p] / pulp->avg_edge_size >
pulp->max_e)
pulp->max_e =
(double)pulp->part_edge_sizes[p] / pulp->avg_edge_size;
if ((double)pulp->part_cut_sizes[p] / pulp->avg_cut_size >
pulp->max_c)
pulp->max_c =
(double)pulp->part_cut_sizes[p] / pulp->avg_cut_size;
if (pulp->part_cut_sizes[p] > pulp->max_cut)
pulp->max_cut = pulp->part_cut_sizes[p];
}
if (pulp->max_e < edge_balance) {
pulp->max_e = edge_balance;
pulp->weight_exponent_e = 1.0;
pulp->weight_exponent_c *= pulp->max_c;
} else {
pulp->weight_exponent_e *= pulp->max_e / edge_balance;
pulp->weight_exponent_c = 1.0;
}
cur_iter += 1.0;
// multiplier =
// (double)pulp->num_parts*(1.0-(double)cur_iter/(double)tot_iter)+1.0*pulp->num_parts*(double)cur_iter/((double)tot_iter*2.0);
multiplier = (double)nprocs * ((X - Y) * (cur_iter / tot_iter) + Y);
// int32_t* tmp = pulp->local_parts;
// pulp->local_parts = pulp->local_parts_next;
// pulp->local_parts_next = tmp;
if (debug)
printf("Task %d num_swapped_1 %lu\n", procid, num_swapped_1);
num_swapped_1 = 0;
// if (procid == 0)
// printf("&&& XtraPuLP, %2.3lf, %2.3lf, %2.3lf, %li, %li\n",
// pulp->max_v, pulp->max_e, pulp->max_c, pulp->cut_size,
// pulp->max_cut);
// part_eval(g, pulp);
// printf("\n\n\n\n");
}
} // end balance loop
#pragma omp single
{
// if (procid == 0) printf("EVAL ec VEC ER
// ------------------------------\n"); part_eval(g, pulp);
update_pulp_data(g, pulp);
num_swapped_2 = 0;
}
for (uint64_t cur_ref_iter = 0; cur_ref_iter < refine_iter;
++cur_ref_iter) {
#pragma omp for schedule(guided) reduction(+ : num_swapped_2) nowait
for (uint64_t vert_index = 0; vert_index < g->n_local; ++vert_index) {
int32_t part = pulp->local_parts[vert_index];
for (int32_t p = 0; p < pulp->num_parts; ++p) tp.part_counts[p] = 0.0;
uint64_t out_degree = out_degree(g, vert_index);
uint64_t* outs = out_vertices(g, vert_index);
for (uint64_t j = 0; j < out_degree; ++j) {
uint64_t out_index = outs[j];
int32_t part_out = pulp->local_parts[out_index];
tp.part_counts[part_out] += 1.0;
}
int32_t max_part = part;
double max_val = 0.0;
uint64_t num_max = 0;
int64_t max_count = 0;
int64_t part_count = (int64_t)tp.part_counts[part];
for (int32_t p = 0; p < pulp->num_parts; ++p) {
if (tp.part_counts[p] == max_val) {
tp.part_counts[num_max++] = (double)p;
} else if (tp.part_counts[p] > max_val) {
max_val = tp.part_counts[p];
max_part = p;
max_count = (int64_t)max_val;
num_max = 0;
tp.part_counts[num_max++] = (double)p;
}
}
if (num_max > 1)
max_part =
(int32_t)tp.part_counts[(xs1024star_next(&xs) % num_max)];
if (max_part != part) {
int64_t new_size = (int64_t)pulp->avg_size;
int64_t new_edge_size = (int64_t)pulp->avg_edge_size;
double avg_cut_size =
(double)pulp->cut_size / (double)pulp->num_parts;
int64_t new_cut_size = (int64_t)avg_cut_size;
int64_t new_max_cut_size = (int64_t)avg_cut_size;
pulp->part_size_changes[max_part] + 1 < 0
? new_size = pulp->part_sizes[max_part] +
pulp->part_size_changes[max_part] + 1
: new_size = (int64_t)(
(double)pulp->part_sizes[max_part] +
multiplier * (double)pulp->part_size_changes[max_part] +
1.0);
pulp->part_edge_size_changes[max_part] + out_degree < 0
? new_edge_size = pulp->part_edge_sizes[max_part] +
pulp->part_edge_size_changes[max_part] +
out_degree
: new_edge_size = (int64_t)(
(double)pulp->part_edge_sizes[max_part] +
multiplier *
(double)pulp->part_edge_size_changes[max_part] +
(double)(out_degree));
pulp->part_cut_size_changes[part] < 0
? new_cut_size = pulp->part_cut_sizes[part] +
pulp->part_cut_size_changes[part] +
2 * part_count - out_degree
: new_cut_size = (int64_t)(
(double)pulp->part_cut_sizes[part] +
multiplier * (double)pulp->part_cut_size_changes[part] +
2.0 * (double)part_count - (double)(out_degree));
pulp->part_cut_size_changes[max_part] < 0
? new_cut_size = pulp->part_cut_sizes[max_part] +
pulp->part_cut_size_changes[max_part] +
out_degree - 2 * max_count
: new_cut_size = (int64_t)(
(double)pulp->part_cut_sizes[max_part] +
multiplier *
(double)pulp->part_cut_size_changes[max_part] +
(double)(out_degree)-2.0 * (double)max_count);
if (new_size < (int64_t)(pulp->avg_size * vert_balance) &&
new_edge_size < (int64_t)(pulp->avg_edge_size * pulp->max_e) &&
new_cut_size < (int64_t)(avg_cut_size * pulp->max_c) &&
new_max_cut_size < (int64_t)(avg_cut_size * pulp->max_c)) {
++num_swapped_2;
int64_t diff_part = 2 * part_count - (int64_t)out_degree;
int64_t diff_max_part = (int64_t)out_degree + -2 * max_count;
int64_t diff_cut = part_count - max_count;
#pragma omp atomic
pulp->cut_size_change += diff_cut;
#pragma omp atomic
pulp->part_cut_size_changes[part] += diff_part;
#pragma omp atomic
pulp->part_cut_size_changes[max_part] += diff_max_part;
#pragma omp atomic
--pulp->part_size_changes[part];
#pragma omp atomic
++pulp->part_size_changes[max_part];
#pragma omp atomic
pulp->part_edge_size_changes[part] -= (int64_t)out_degree;
#pragma omp atomic
pulp->part_edge_size_changes[max_part] += (int64_t)out_degree;
pulp->local_parts[vert_index] = max_part;
add_vid_to_send(&tq, q, vert_index);
// add_vid_to_queue(&tq, q, vert_index);
}
}
}
empty_send(&tq, q);
// empty_queue(&tq, q);
#pragma omp barrier
for (int32_t i = 0; i < nprocs; ++i) tc.sendcounts_thread[i] = 0;
#pragma omp for schedule(guided) nowait
for (uint64_t i = 0; i < q->send_size; ++i) {
uint64_t vert_index = q->queue_send[i];
update_sendcounts_thread(g, &tc, vert_index);
}
for (int32_t i = 0; i < nprocs; ++i) {
#pragma omp atomic
comm->sendcounts_temp[i] += tc.sendcounts_thread[i];
tc.sendcounts_thread[i] = 0;
}
#pragma omp barrier
#pragma omp single
{ init_sendbuf_vid_data(comm); }
#pragma omp for schedule(guided) nowait
for (uint64_t i = 0; i < q->send_size; ++i) {
uint64_t vert_index = q->queue_send[i];
update_vid_data_queues(g, &tc, comm, vert_index,
pulp->local_parts[vert_index]);
}
empty_vid_data(&tc, comm);
#pragma omp barrier
#pragma omp single
{ exchange_vert_data(g, comm, q); } // end single
#pragma omp for
for (uint64_t i = 0; i < comm->total_recv; ++i) {
uint64_t index = get_value(g->map, comm->recvbuf_vert[i]);
pulp->local_parts[index] = comm->recvbuf_data[i];
// pulp->local_parts_next[index] = comm->recvbuf_data[i];
}
#pragma omp single
{
clear_recvbuf_vid_data(comm);
MPI_Allreduce(MPI_IN_PLACE, pulp->part_size_changes, pulp->num_parts,
MPI_INT64_T, MPI_SUM, MPI_COMM_WORLD);
MPI_Allreduce(MPI_IN_PLACE, pulp->part_edge_size_changes,
pulp->num_parts, MPI_INT64_T, MPI_SUM, MPI_COMM_WORLD);
MPI_Allreduce(MPI_IN_PLACE, pulp->part_cut_size_changes,
pulp->num_parts, MPI_INT64_T, MPI_SUM, MPI_COMM_WORLD);
MPI_Allreduce(MPI_IN_PLACE, &pulp->cut_size_change, 1, MPI_INT64_T,
MPI_SUM, MPI_COMM_WORLD);
pulp->cut_size += pulp->cut_size_change;
pulp->cut_size_change = 0;
pulp->avg_cut_size = (double)pulp->cut_size / (double)pulp->num_parts;
/*pulp->max_v = 0.0;
pulp->max_e = 0.0;
pulp->max_c = 0.0;*/
pulp->max_cut = 0;
for (int32_t p = 0; p < pulp->num_parts; ++p) {
pulp->part_sizes[p] += pulp->part_size_changes[p];
pulp->part_edge_sizes[p] += pulp->part_edge_size_changes[p];
pulp->part_cut_sizes[p] += pulp->part_cut_size_changes[p];
pulp->part_size_changes[p] = 0;
pulp->part_edge_size_changes[p] = 0;
pulp->part_cut_size_changes[p] = 0;
/*if ((double)pulp->part_sizes[p] / pulp->avg_size > pulp->max_v)
pulp->max_v = (double)pulp->part_sizes[p] / pulp->avg_size;
if ((double)pulp->part_edge_sizes[p] / pulp->avg_edge_size >
pulp->max_e) pulp->max_e = (double)pulp->part_edge_sizes[p] /
pulp->avg_edge_size; if ((double)pulp->part_cut_sizes[p] /
pulp->avg_cut_size > pulp->max_c) pulp->max_c =
(double)pulp->part_cut_sizes[p] / pulp->avg_cut_size;*/
if (pulp->part_cut_sizes[p] > pulp->max_cut)
pulp->max_cut = pulp->part_cut_sizes[p];
}
/*if (pulp->max_e < edge_balance)
{
pulp->max_e = edge_balance;
pulp->weight_exponent_e = 1.0;
pulp->weight_exponent_c *= pulp->max_c;
}
else
{
pulp->weight_exponent_e *= pulp->max_e / edge_balance;
pulp->weight_exponent_c = 1.0;
}*/
cur_iter += 1.0;
// multiplier =
// (double)pulp->num_parts*(1.0-(double)cur_iter/(double)tot_iter)+1.0*pulp->num_parts*(double)cur_iter/((double)tot_iter*2.0);
multiplier = (double)nprocs * ((X - Y) * (cur_iter / tot_iter) + Y);
// printf("mult %9.6lf\n", multiplier);
// int32_t* tmp = pulp->local_parts;
// pulp->local_parts = pulp->local_parts_next;
// pulp->local_parts_next = tmp;
if (debug)
printf("Task %d num_swapped_2 %lu \n", procid, num_swapped_2);
num_swapped_2 = 0;
// printf("%d &&& XtraPuLP, %2.3lf, %2.3lf, %2.3lf, %li, %li\n",
// procid,
// pulp->max_v, pulp->max_e, pulp->max_c, pulp->cut_size,
// pulp->max_cut);
// part_eval(g, pulp);
}
} // end refine iter
/*if (cur_outer_iter + 1 == outer_iter)
{
#pragma omp single
{
update_pulp_data(g, pulp);
if ( ( (pulp->max_e > edge_balance*BAL_CUTOFF &&
pulp->max_e*BAL_CHANGE < running_bal) ||
(double)pulp->cut_size < running_cut*CUT_CHANGE ) &&
num_tries < 3)
{
outer_iter += 1;
tot_iter += (double)(balance_iter + refine_iter);
++num_tries;
running_cut = (double)pulp->cut_size;
running_bal = pulp->max_e;
multiplier = (double)nprocs*( (X - Y)*(cur_iter/tot_iter) + Y );
}
}
}*/
} // end outer loop
clear_thread_queue(&tq);
clear_thread_comm(&tc);
clear_thread_pulp(&tp);
} // end parallel
// part_eval(g, pulp);
// update_pulp_data(g, pulp);
if (verbose) {
elt = omp_get_wtime() - elt;
printf("Task %d, pulp_vec() time %9.6f (s)\n", procid, elt);
}
if (debug) {
printf("Task %d pulp_vec() success\n", procid);
}
return 0;
}
int pulp_vec_weighted(dist_graph_t* g, mpi_data_t* comm, queue_data_t* q,
pulp_data_t* pulp, uint64_t outer_iter,
uint64_t balance_iter, uint64_t refine_iter,
double vert_balance, double edge_balance) {
if (debug) {
printf("Task %d pulp_vec_weighted() start\n", procid);
}
double elt = 0.0;
if (verbose) {
MPI_Barrier(MPI_COMM_WORLD);
elt = omp_get_wtime();
}
bool has_vwgts = (g->vertex_weights != NULL);
bool has_ewgts = (g->edge_weights != NULL);
q->queue_size = 0;
q->next_size = 0;
q->send_size = 0;
for (int32_t i = 0; i < nprocs; ++i) comm->sendcounts_temp[i] = 0;
pulp->avg_cut_size = (double)pulp->cut_size / (double)pulp->num_parts;
pulp->max_v = 0.0;
pulp->max_e = 0.0;
pulp->max_c = 0.0;
pulp->max_cut = 0;
for (int p = 0; p < pulp->num_parts; ++p) {
if ((double)pulp->part_sizes[p] / pulp->avg_size > pulp->max_v)
pulp->max_v = (double)pulp->part_sizes[p] / pulp->avg_size;
if ((double)pulp->part_edge_sizes[p] / pulp->avg_edge_size > pulp->max_e)
pulp->max_e = (double)pulp->part_edge_sizes[p] / pulp->avg_edge_size;
if ((double)pulp->part_cut_sizes[p] / pulp->avg_cut_size > pulp->max_c)
pulp->max_c = (double)pulp->part_cut_sizes[p] / pulp->avg_cut_size;
if (pulp->part_cut_sizes[p] > pulp->max_cut)
pulp->max_cut = pulp->part_cut_sizes[p];
}
if (pulp->max_e < edge_balance) {
pulp->max_e = edge_balance;
pulp->weight_exponent_e = 1.0;
pulp->weight_exponent_c *= pulp->max_c;
} else {
pulp->weight_exponent_e *= pulp->max_e / edge_balance;
pulp->weight_exponent_c = 1.0;
}
double tot_iter = (double)(outer_iter * (refine_iter + balance_iter));
double cur_iter = 0.0;
double multiplier = (double)nprocs * ((X - Y) * (cur_iter / tot_iter) + Y);
// double running_bal = pulp->max_e;
// double running_cut = (double)pulp->cut_size;
// uint64_t num_tries = 3;
uint64_t num_swapped_1 = 0;
uint64_t num_swapped_2 = 0;
comm->global_queue_size = 1;
#pragma omp parallel default(shared)
{
thread_queue_t tq;
thread_comm_t tc;
thread_pulp_t tp;
init_thread_queue(&tq);
init_thread_comm(&tc);
init_thread_pulp(&tp, pulp);
xs1024star_t xs;
xs1024star_seed((uint64_t)(seed + omp_get_thread_num()), &xs);
for (uint64_t cur_outer_iter = 0; cur_outer_iter < outer_iter;
++cur_outer_iter) {
#pragma omp single
{
// if (procid == 0) printf("EVAL ec VEC EB
// ------------------------------\n"); part_eval_weighted(g, pulp);
update_pulp_data_weighted(g, pulp);
num_swapped_1 = 0;
}
for (uint64_t cur_bal_iter = 0; cur_bal_iter < balance_iter;
++cur_bal_iter) {
for (int32_t p = 0; p < pulp->num_parts; ++p) {
tp.part_weights[p] =
vert_balance * pulp->avg_size / (double)pulp->part_sizes[p] - 1.0;
tp.part_edge_weights[p] = pulp->max_e * pulp->avg_edge_size /
(double)pulp->part_edge_sizes[p] -
1.0;
tp.part_cut_weights[p] = pulp->max_c * pulp->avg_cut_size /
(double)pulp->part_cut_sizes[p] -
1.0;
if (tp.part_weights[p] < 0.0) tp.part_weights[p] = 0.0;
if (tp.part_edge_weights[p] < 0.0) tp.part_edge_weights[p] = 0.0;
if (tp.part_cut_weights[p] < 0.0) tp.part_cut_weights[p] = 0.0;
}
#pragma omp for schedule(guided) reduction(+ : num_swapped_1) nowait
for (uint64_t vert_index = 0; vert_index < g->n_local; ++vert_index) {
int32_t part = pulp->local_parts[vert_index];
int32_t vert_weight = 1;
if (has_vwgts) vert_weight = g->vertex_weights[vert_index];
for (int32_t p = 0; p < pulp->num_parts; ++p) tp.part_counts[p] = 0.0;
uint64_t out_degree = out_degree(g, vert_index);
uint64_t* outs = out_vertices(g, vert_index);
int32_t* weights = out_weights(g, vert_index);
int64_t weights_sum = 0;
for (uint64_t j = 0; j < out_degree; ++j) {
uint64_t out_index = outs[j];
int32_t part_out = pulp->local_parts[out_index];
double weight_out = 1.0;
if (has_ewgts) weight_out = (double)weights[j];
tp.part_counts[part_out] += weight_out;
weights_sum += weight_out;
}
int32_t max_part = part;
double max_val = 0.0;
uint64_t num_max = 0;
int64_t max_count = 0;
int64_t part_count = (int64_t)tp.part_counts[part];
for (int32_t p = 0; p < pulp->num_parts; ++p) {
int64_t count_init = (int64_t)tp.part_counts[p];
if (tp.part_weights[p] > 0.0 && tp.part_edge_weights[p] > 0.0 &&
tp.part_cut_weights[p] > 0.0)
tp.part_counts[p] *=
(tp.part_edge_weights[p] * pulp->weight_exponent_e *
tp.part_cut_weights[p] * pulp->weight_exponent_c);
else
tp.part_counts[p] = 0.0;
if (tp.part_counts[p] == max_val) {
tp.part_counts[num_max++] = (double)p;
} else if (tp.part_counts[p] > max_val) {
max_val = tp.part_counts[p];
max_part = p;
max_count = count_init;
num_max = 0;
tp.part_counts[num_max++] = (double)p;
}
}
if (num_max > 1)
max_part =
(int32_t)tp.part_counts[(xs1024star_next(&xs) % num_max)];
if (max_part != part) {
++num_swapped_1;
int64_t diff_part = 2 * part_count - weights_sum;
int64_t diff_max_part = weights_sum - 2 * max_count;
int64_t diff_cut = part_count - max_count;
#pragma omp atomic
pulp->cut_size_change += diff_cut;
#pragma omp atomic
pulp->part_cut_size_changes[part] += diff_part;
#pragma omp atomic
pulp->part_cut_size_changes[max_part] += diff_max_part;
#pragma omp atomic
pulp->part_size_changes[part] -= vert_weight;
#pragma omp atomic
pulp->part_size_changes[max_part] += vert_weight;
#pragma omp atomic
pulp->part_edge_size_changes[part] -= (int64_t)out_degree;
#pragma omp atomic
pulp->part_edge_size_changes[max_part] += (int64_t)out_degree;
tp.part_weights[part] =
vert_balance * pulp->avg_size /
((double)pulp->part_sizes[part] +
multiplier * (double)pulp->part_size_changes[part]) -
1.0;
tp.part_weights[max_part] =
vert_balance * pulp->avg_size /
((double)pulp->part_sizes[max_part] +
multiplier * (double)pulp->part_size_changes[max_part]) -
1.0;
tp.part_edge_weights[part] =
pulp->max_e * pulp->avg_edge_size /
((double)pulp->part_edge_sizes[part] +
multiplier * (double)pulp->part_edge_size_changes[part]) -
1.0;
tp.part_edge_weights[max_part] =
pulp->max_e * pulp->avg_edge_size /
((double)pulp->part_edge_sizes[max_part] +
multiplier *
(double)pulp->part_edge_size_changes[max_part]) -
1.0;
double avg_cut_size =
(double)pulp->cut_size / (double)pulp->num_parts;
tp.part_cut_weights[part] =
pulp->max_c * avg_cut_size /
((double)pulp->part_cut_sizes[part] +
multiplier * (double)pulp->part_cut_size_changes[part]) -
1.0;
tp.part_cut_weights[max_part] =
pulp->max_c * avg_cut_size /
((double)pulp->part_cut_sizes[max_part] +
multiplier *
(double)pulp->part_cut_size_changes[max_part]) -
1.0;
if (tp.part_weights[part] < 0.0) tp.part_weights[part] = 0.0;
if (tp.part_weights[max_part] < 0.0)
tp.part_weights[max_part] = 0.0;
if (tp.part_edge_weights[part] < 0.0)
tp.part_edge_weights[part] = 0.0;
if (tp.part_edge_weights[max_part] < 0.0)
tp.part_edge_weights[max_part] = 0.0;
if (tp.part_cut_weights[part] < 0.0)
tp.part_cut_weights[part] = 0.0;
if (tp.part_cut_weights[max_part] < 0.0)
tp.part_cut_weights[max_part] = 0.0;
pulp->local_parts[vert_index] = max_part;
add_vid_to_send(&tq, q, vert_index);
// add_vid_to_queue(&tq, q, vert_index);
}
}
empty_send(&tq, q);
// empty_queue(&tq, q);
#pragma omp barrier
for (int32_t i = 0; i < nprocs; ++i) tc.sendcounts_thread[i] = 0;
#pragma omp for schedule(guided) nowait
for (uint64_t i = 0; i < q->send_size; ++i) {
uint64_t vert_index = q->queue_send[i];
update_sendcounts_thread(g, &tc, vert_index);
}
for (int32_t i = 0; i < nprocs; ++i) {
#pragma omp atomic
comm->sendcounts_temp[i] += tc.sendcounts_thread[i];
tc.sendcounts_thread[i] = 0;
}
#pragma omp barrier
#pragma omp single
{ init_sendbuf_vid_data(comm); }
#pragma omp for schedule(guided) nowait
for (uint64_t i = 0; i < q->send_size; ++i) {
uint64_t vert_index = q->queue_send[i];
update_vid_data_queues(g, &tc, comm, vert_index,
pulp->local_parts[vert_index]);
}
empty_vid_data(&tc, comm);
#pragma omp barrier
#pragma omp single
{ exchange_vert_data(g, comm, q); } // end single
#pragma omp for
for (uint64_t i = 0; i < comm->total_recv; ++i) {
uint64_t index = get_value(g->map, comm->recvbuf_vert[i]);
pulp->local_parts[index] = comm->recvbuf_data[i];
}
#pragma omp single
{
clear_recvbuf_vid_data(comm);
MPI_Allreduce(MPI_IN_PLACE, pulp->part_size_changes, pulp->num_parts,
MPI_INT64_T, MPI_SUM, MPI_COMM_WORLD);
MPI_Allreduce(MPI_IN_PLACE, pulp->part_edge_size_changes,
pulp->num_parts, MPI_INT64_T, MPI_SUM, MPI_COMM_WORLD);
MPI_Allreduce(MPI_IN_PLACE, pulp->part_cut_size_changes,
pulp->num_parts, MPI_INT64_T, MPI_SUM, MPI_COMM_WORLD);
MPI_Allreduce(MPI_IN_PLACE, &pulp->cut_size_change, 1, MPI_INT64_T,
MPI_SUM, MPI_COMM_WORLD);
pulp->cut_size += pulp->cut_size_change;
pulp->cut_size_change = 0;
pulp->avg_cut_size = (double)pulp->cut_size / (double)pulp->num_parts;
pulp->max_v = 0.0;
pulp->max_e = 0.0;
pulp->max_c = 0.0;
pulp->max_cut = 0;
// if (procid == 0)
// for (int32_t i = 0; i < pulp->num_parts; ++i)
// printf("p: %d, v: %li, e: %li, cut: %li\n",
// i, pulp->part_sizes[i], pulp->part_edge_sizes[i],
// pulp->part_cut_sizes[i]);
// part_eval(g, pulp);
for (int32_t p = 0; p < pulp->num_parts; ++p) {
// if (procid == 0)
// printf("p: %d, vc: %li, ec: %li, cc: %li\n", p,
// pulp->part_size_changes[p], pulp->part_edge_size_changes[p],
// pulp->part_cut_size_changes[p]);
pulp->part_sizes[p] += pulp->part_size_changes[p];
pulp->part_edge_sizes[p] += pulp->part_edge_size_changes[p];
pulp->part_cut_sizes[p] += pulp->part_cut_size_changes[p];
pulp->part_size_changes[p] = 0;
pulp->part_edge_size_changes[p] = 0;
pulp->part_cut_size_changes[p] = 0;
if ((double)pulp->part_sizes[p] / pulp->avg_size > pulp->max_v)
pulp->max_v = (double)pulp->part_sizes[p] / pulp->avg_size;
if ((double)pulp->part_edge_sizes[p] / pulp->avg_edge_size >
pulp->max_e)
pulp->max_e =
(double)pulp->part_edge_sizes[p] / pulp->avg_edge_size;
if ((double)pulp->part_cut_sizes[p] / pulp->avg_cut_size >
pulp->max_c)
pulp->max_c =
(double)pulp->part_cut_sizes[p] / pulp->avg_cut_size;
if (pulp->part_cut_sizes[p] > pulp->max_cut)
pulp->max_cut = pulp->part_cut_sizes[p];
}
if (pulp->max_e < edge_balance) {
pulp->max_e = edge_balance;
pulp->weight_exponent_e = 1.0;
pulp->weight_exponent_c *= pulp->max_c;
} else {
pulp->weight_exponent_e *= pulp->max_e / edge_balance;
pulp->weight_exponent_c = 1.0;
}
cur_iter += 1.0;
// multiplier =
// (double)pulp->num_parts*(1.0-(double)cur_iter/(double)tot_iter)+1.0*pulp->num_parts*(double)cur_iter/((double)tot_iter*2.0);
multiplier = (double)nprocs * ((X - Y) * (cur_iter / tot_iter) + Y);
// int32_t* tmp = pulp->local_parts;
// pulp->local_parts = pulp->local_parts_next;
// pulp->local_parts_next = tmp;
if (debug)
printf("Task %d num_swapped_1 %lu \n", procid, num_swapped_1);
num_swapped_1 = 0;
// if (procid == 0)
// printf("&&& XtraPuLP, %2.3lf, %2.3lf, %2.3lf, %li, %li\n",
// pulp->max_v, pulp->max_e, pulp->max_c, pulp->cut_size,
// pulp->max_cut);
// part_eval(g, pulp);
// printf("\n\n\n\n");
}
} // end balance loop
#pragma omp single
{
// if (procid == 0) printf("EVAL ec VEC ER
// ------------------------------\n"); part_eval_weighted(g, pulp);
update_pulp_data_weighted(g, pulp);
num_swapped_2 = 0;
}
for (uint64_t cur_ref_iter = 0; cur_ref_iter < refine_iter;
++cur_ref_iter) {
#pragma omp for schedule(guided) reduction(+ : num_swapped_2) nowait
for (uint64_t vert_index = 0; vert_index < g->n_local; ++vert_index) {
int32_t part = pulp->local_parts[vert_index];
int32_t vert_weight = 1;
if (has_vwgts) vert_weight = g->vertex_weights[vert_index];