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polymer-wgh.h
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polymer-wgh.h
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/*
* This code is part of the project "NUMA-aware Graph-structured Analytics"
*
*
* Copyright (C) 2014 Institute of Parallel And Distributed Systems (IPADS), Shanghai Jiao Tong University
* All rights reserved
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* For more about this software, visit:
*
* http://ipads.se.sjtu.edu.cn/projects/polymer.html
*
*/
#include <iostream>
#include <fstream>
#include <stdlib.h>
#include <cstring>
#include <string>
#include <algorithm>
#include <sys/mman.h>
#include "custom-barrier.h"
#include "parallel.h"
#include "gettime.h"
#include "utils.h"
#include "graph.h"
#include "IO.h"
#include <numa.h>
#include <pthread.h>
using namespace std;
#define PAGESIZE (4096)
#define MIN(x, y) ((x > y) ? (y) : (x))
//*****START FRAMEWORK*****
/* This is no longer ligra,
the vertices set should be set by each node
*/
inline int SXCHG(char *ptr, char newv) {
char ret = newv;
__asm__ __volatile__ (
" xchgb %0,%1\n"
: "=r" (ret)
: "m" (*(volatile char *)ptr), "0" (newv)
: "memory");
return ret;
}
long long roundUp(double x) {
long long ones = x / 1;
double others = x - ones;
if (others > 0) {
ones++;
}
return ones;
}
struct Subworker_Partitioner {
int tid;
int subTid;
int numOfSub;
intT dense_start;
intT dense_end;
pthread_barrier_t *global_barr;
pthread_barrier_t *local_barr;
Custom_barrier local_custom;
Custom_barrier subMaster_custom;
Subworker_Partitioner(int nSub):numOfSub(nSub){}
inline bool isMaster() {return (tid + subTid == 0);}
inline bool isSubMaster() {return (subTid == 0);}
inline intT getStartPos(intT m) {return subTid * (m / numOfSub);}
inline intT getEndPos(intT m) {return (subTid == numOfSub - 1) ? m : ((subTid + 1) * (m / numOfSub));}
inline void localWait() {
local_custom.wait();
}
inline void globalWait() {
local_custom.wait();
if (isSubMaster()) {
subMaster_custom.wait();
}
local_custom.wait();
}
};
struct Default_Hash_F {
int shardNum;
intT vertPerShard;
intT n;
Default_Hash_F(intT _n, int _shardNum):n(_n), shardNum(_shardNum), vertPerShard(_n / _shardNum){}
inline intT hashFunc(intT index) {
if (index >= shardNum * vertPerShard) {
return index;
}
intT idxOfShard = index % shardNum;
intT idxInShard = index / shardNum;
return (idxOfShard * vertPerShard + idxInShard);
}
inline intT hashBackFunc(intT index) {
if (index >= shardNum * vertPerShard) {
return index;
}
intT idxOfShard = index / vertPerShard;
intT idxInShard = index % vertPerShard;
return (idxOfShard + idxInShard * shardNum);
}
};
template <class vertex>
void partitionByDegree(wghGraph<vertex> GA, int numOfShards, intT *sizeArr, int sizeOfOneEle, bool useOutDegree=false) {
const intT n = GA.n;
intT *degrees = newA(intT, n);
intT shardSize = n / numOfShards;
if (useOutDegree) {
{parallel_for(intT i = 0; i < n; i++) degrees[i] = GA.V[i].getOutDegree();}
} else {
{parallel_for(intT i = 0; i < n; i++) degrees[i] = GA.V[i].getInDegree();}
}
intT accum[numOfShards];
for (int i = 0; i < numOfShards; i++) {
accum[i] = 0;
sizeArr[i] = 0;
}
long long totalDegree = 0;
for (intT i = 0; i < n; i++) {
totalDegree += degrees[i];
}
intT averageDegree = totalDegree / numOfShards;
intT counter = 0;
intT tmpSizeCounter = 0;
for (intT i = 0; i < n; i+=PAGESIZE/sizeOfOneEle) {
for (intT j = 0; j < PAGESIZE / sizeOfOneEle; j++) {
if (i + j >= n)
break;
accum[counter] += degrees[i + j];
sizeArr[counter]++;
tmpSizeCounter++;
}
if (accum[counter] >= averageDegree && counter < numOfShards - 1) {
counter++;
//cout << tmpSizeCounter / (double)(PAGESIZE / sizeOfOneEle) << endl;
tmpSizeCounter = 0;
}
}
for (int i = 0; i < numOfShards; i++) {
printf("%d shard: %" PRIintT "\n", i, accum[i]);
}
free(degrees);
}
template <class vertex>
void subPartitionByDegree(wghGraph<vertex> GA, int numOfShards, intT *sizeArr, int sizeOfOneEle, bool useOutDegree=false, bool useFakeDegree=false) {
const intT n = GA.n;
intT *degrees = newA(intT, n);
intT shardSize = n / numOfShards;
if (useFakeDegree) {
{parallel_for(intT i = 0; i < n; i++) degrees[i] = GA.V[i].getFakeDegree();}
} else {
if (useOutDegree) {
{parallel_for(intT i = 0; i < n; i++) degrees[i] = GA.V[i].getOutDegree();}
} else {
{parallel_for(intT i = 0; i < n; i++) degrees[i] = GA.V[i].getInDegree();}
}
}
intT accum[numOfShards];
for (intT i = 0; i < numOfShards; i++) {
accum[i] = 0;
sizeArr[i] = 0;
}
long long totalDegree = 0;
for (intT i = 0; i < n; i++) {
totalDegree += degrees[i];
}
intT averageDegree = totalDegree / numOfShards;
intT counter = 0;
intT tmpSizeCounter = 0;
for (intT i = 0; i < n; i++) {
accum[counter] += degrees[i];
sizeArr[counter]++;
tmpSizeCounter++;
if (accum[counter] >= averageDegree && counter < numOfShards - 1) {
counter++;
//cout << tmpSizeCounter / (double)(PAGESIZE / sizeOfOneEle) << endl;
tmpSizeCounter = 0;
}
}
free(degrees);
}
template <class vertex>
void subPartitionByDegree(wghGraph<vertex> GA, int numOfShards, intT *sizeArr, int sizeOfOneEle, intT subStart, intT subEnd, bool useOutDegree=false, bool useFakeDegree=false) {
const intT n = subEnd - subStart;
intT *degrees = newA(intT, n);
intT shardSize = n / numOfShards;
if (useFakeDegree) {
{parallel_for(intT i = subStart; i < subEnd; i++) degrees[i-subStart] = GA.V[i].getFakeDegree();}
} else {
if (useOutDegree) {
{parallel_for(intT i = subStart; i < subEnd; i++) degrees[i-subStart] = GA.V[i].getOutDegree();}
} else {
{parallel_for(intT i = subStart; i < subEnd; i++) degrees[i-subStart] = GA.V[i].getInDegree();}
}
}
intT accum[numOfShards];
for (intT i = 0; i < numOfShards; i++) {
accum[i] = 0;
sizeArr[i] = 0;
}
long long totalDegree = 0;
for (intT i = 0; i < n; i++) {
totalDegree += degrees[i];
}
intT averageDegree = totalDegree / numOfShards;
intT counter = 0;
intT tmpSizeCounter = 0;
for (intT i = 0; i < n; i++) {
accum[counter] += degrees[i];
sizeArr[counter]++;
tmpSizeCounter++;
if (accum[counter] >= averageDegree && counter < numOfShards - 1) {
counter++;
//cout << tmpSizeCounter / (double)(PAGESIZE / sizeOfOneEle) << endl;
tmpSizeCounter = 0;
}
}
free(degrees);
}
template <class vertex, class Hash_F>
void graphHasher(wghGraph<vertex> &GA, Hash_F hash) {
vertex *V = GA.V;
vertex *newVertexSet = (vertex *)malloc(sizeof(vertex) * GA.n);
{parallel_for (intT i = 0; i < GA.n; i++) {
intT d = V[i].getOutDegree();
//V[i].setFakeDegree(d);
intE *outEdges = V[i].getOutNeighborPtr();
for (intT j = 0; j < d; j++) {
outEdges[2*j] = hash.hashFunc(outEdges[2*j]);
}
newVertexSet[hash.hashFunc(i)] = V[i];
}
}
GA.V = newVertexSet;
free(V);
}
template <class vertex, class Hash_F>
void graphInEdgeHasher(wghGraph<vertex> &GA, Hash_F hash) {
vertex *V = GA.V;
vertex *newVertexSet = (vertex *)malloc(sizeof(vertex) * GA.n);
{parallel_for (intT i = 0; i < GA.n; i++) {
intT d = V[i].getInDegree();
//V[i].setFakeDegree(d);
intE *inEdges = V[i].getInNeighborPtr();
for (intT j = 0; j < d; j++) {
inEdges[2*j] = hash.hashFunc(inEdges[j]);
}
newVertexSet[hash.hashFunc(i)] = V[i];
}
}
GA.V = newVertexSet;
free(V);
}
template <class vertex, class Hash_F>
void graphAllEdgeHasher(wghGraph<vertex> &GA, Hash_F hash) {
vertex *V = GA.V;
vertex *newVertexSet = (vertex *)malloc(sizeof(vertex) * GA.n);
{parallel_for (intT i = 0; i < GA.n; i++) {
intT d = V[i].getOutDegree();
intE *outEdges = V[i].getOutNeighborPtr();
for (intT j = 0; j < d; j++) {
outEdges[2*j] = hash.hashFunc(outEdges[2*j]);
}
d = V[i].getInDegree();
intE *inEdges = V[i].getInNeighborPtr();
for (intT j = 0; j < d; j++) {
inEdges[2*j] = hash.hashFunc(inEdges[j]);
}
newVertexSet[hash.hashFunc(i)] = V[i];
}
}
GA.V = newVertexSet;
free(V);
}
template <class vertex>
wghGraph<vertex> graphFilter(wghGraph<vertex> &GA, intT rangeLow, intT rangeHi, bool useOutEdge=true) {
vertex *V = GA.V;
vertex *newVertexSet = (vertex *)numa_alloc_local(sizeof(vertex) * GA.n);
intT *counters = (intT *)numa_alloc_local(sizeof(intT) * GA.n);
intT *offsets = (intT *)numa_alloc_local(sizeof(intT) * GA.n);
{parallel_for (intT i = 0; i < GA.n; i++) {
intT d = (useOutEdge) ? (V[i].getOutDegree()) : (V[i].getInDegree());
//V[i].setFakeDegree(d);
newVertexSet[i].setOutDegree(V[i].getOutDegree());
newVertexSet[i].setInDegree(V[i].getInDegree());
counters[i] = 0;
for (intT j = 0; j < d; j++) {
intT ngh = (useOutEdge) ? (V[i].getOutNeighbor(j)) : (V[i].getInNeighbor(j));
if (rangeLow <= ngh && ngh < rangeHi)
counters[i]++;
}
newVertexSet[i].setFakeDegree(counters[i]);
}
}
long long totalSize = 0;
for (intT i = 0; i < GA.n; i++) {
offsets[i] = totalSize;
totalSize += counters[i];
}
printf("totalSize of %" PRIintT ": %lld %lld\n", rangeLow, totalSize, totalSize * 2);
numa_free(counters, sizeof(intT) * GA.n);
//intE *edges = (intE *)numa_alloc_local(sizeof(intE) * totalSize * 2);
intE *edges = (intE *)malloc((long long)sizeof(intE) * totalSize * (long long)2);
{parallel_for (intT i = 0; i < GA.n; i++) {
intE *localEdges = &edges[offsets[i]*2];
intT counter = 0;
intT d = (useOutEdge) ? (V[i].getOutDegree()) : (V[i].getInDegree());
for (intT j = 0; j < d; j++) {
intT ngh = (useOutEdge) ? (V[i].getOutNeighbor(j)) : (V[i].getInNeighbor(j));
intT wgh = (useOutEdge) ? (V[i].getOutWeight(j)) : (V[i].getInWeight(j));
if (rangeLow <= ngh && ngh < rangeHi) {
localEdges[counter * 2] = ngh;
localEdges[counter * 2 + 1] = wgh;
counter++;
}
}
if (counter != newVertexSet[i].getFakeDegree()) {
printf("oops: %" PRIintT " %" PRIintT "\n", counter, newVertexSet[i].getFakeDegree());
}
if (i == 0) {
printf("fake deg: %" PRIintT "\n", newVertexSet[i].getFakeDegree());
}
if (useOutEdge)
newVertexSet[i].setOutNeighbors(localEdges);
else
newVertexSet[i].setInNeighbors(localEdges);
}
}
numa_free(offsets, sizeof(intT) * GA.n);
//printf("degree: %" PRIintT "\n", newVertexSet[0].getFakeDegree());
return wghGraph<vertex>(newVertexSet, GA.n, GA.m);
}
template <class vertex>
wghGraph<vertex> graphFilter2Direction(wghGraph<vertex> &GA, intT rangeLow, intT rangeHi, bool useOutEdge=true) {
vertex *V = GA.V;
vertex *newVertexSet = (vertex *)numa_alloc_local(sizeof(vertex) * GA.n);
intT *counters = (intT *)numa_alloc_local(sizeof(intT) * GA.n);
intT *offsets = (intT *)numa_alloc_local(sizeof(intT) * GA.n);
intT *inCounters = (intT *)numa_alloc_local(sizeof(intT) * GA.n);
intT *inOffsets = (intT *)numa_alloc_local(sizeof(intT) * GA.n);
{parallel_for (intT i = 0; i < GA.n; i++) {
intT d = (useOutEdge) ? (V[i].getOutDegree()) : (V[i].getInDegree());
//V[i].setFakeDegree(d);
newVertexSet[i].setOutDegree(V[i].getOutDegree());
newVertexSet[i].setInDegree(V[i].getInDegree());
counters[i] = 0;
for (intT j = 0; j < d; j++) {
intT ngh = V[i].getOutNeighbor(j);
if (rangeLow <= ngh && ngh < rangeHi)
counters[i]++;
}
d = V[i].getInDegree();
inCounters[i] = 0;
for (intT j = 0; j < d; j++) {
intT ngh = V[i].getInNeighbor(j);
if (rangeLow <= ngh && ngh < rangeHi)
inCounters[i]++;
}
newVertexSet[i].setFakeDegree(counters[i]);
newVertexSet[i].setFakeInDegree(inCounters[i]);
}
}
long long totalSize = 0;
long long totalInSize = 0;
for (intT i = 0; i < GA.n; i++) {
offsets[i] = totalSize;
totalSize += counters[i];
inOffsets[i] = totalInSize;
totalInSize += inCounters[i];
}
printf("totalSize of %" PRIintT ": %lld %lld\n", rangeLow, totalSize, totalSize * 2);
numa_free(counters, sizeof(intT) * GA.n);
numa_free(inCounters, sizeof(intT) * GA.n);
//intE *edges = (intE *)numa_alloc_local(sizeof(intE) * totalSize * 2);
intE *edges = (intE *)malloc((long long)sizeof(intE) * totalSize * (long long)2);
intE *inEdges = (intE *)malloc((long long)sizeof(intE) * totalInSize * (long long)2);
{parallel_for (intT i = 0; i < GA.n; i++) {
intE *localEdges = &edges[offsets[i]*2];
intT counter = 0;
intT d = V[i].getOutDegree();
for (intT j = 0; j < d; j++) {
intT ngh = V[i].getOutNeighbor(j);
intT wgh = V[i].getOutWeight(j);
if (rangeLow <= ngh && ngh < rangeHi) {
localEdges[counter * 2] = ngh;
localEdges[counter * 2 + 1] = wgh;
counter++;
}
}
if (counter != newVertexSet[i].getFakeDegree()) {
printf("oops: %" PRIintT " %" PRIintT "\n", counter, newVertexSet[i].getFakeDegree());
}
intE *localInEdges = &inEdges[inOffsets[i]*2];
counter = 0;
d = V[i].getInDegree();
for (intT j = 0; j < d; j++) {
intT ngh = V[i].getInNeighbor(j);
intT wgh = V[i].getInWeight(j);
if (rangeLow <= ngh && ngh < rangeHi) {
localInEdges[counter * 2] = ngh;
localInEdges[counter * 2 + 1] = wgh;
counter++;
}
}
if (counter != newVertexSet[i].getFakeInDegree()) {
printf("oops: %" PRIintT " %" PRIintT "\n", counter, newVertexSet[i].getFakeInDegree());
}
if (i == 0) {
printf("fake deg: %" PRIintT "\n", newVertexSet[i].getFakeDegree());
}
newVertexSet[i].setOutNeighbors(localEdges);
newVertexSet[i].setInNeighbors(localInEdges);
}
}
numa_free(offsets, sizeof(intT) * GA.n);
//printf("degree: %" PRIintT "\n", newVertexSet[0].getFakeDegree());
return wghGraph<vertex>(newVertexSet, GA.n, GA.m);
}
void *mapDataArray(int numOfShards, intT *sizeArr, int sizeOfOneEle) {
intT numOfPages = 0;
for (int i = 0; i < numOfShards; i++) {
numOfPages += sizeArr[i] / (double)(PAGESIZE / sizeOfOneEle);
}
numOfPages++;
void *toBeReturned = mmap(NULL, numOfPages * PAGESIZE, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
if (toBeReturned == NULL) {
cout << "OOps" << endl;
}
intT offset = 0;
for (int i = 0; i < numOfShards; i++) {
void *startPos = (void *)((char *)toBeReturned + offset * sizeOfOneEle);
//printf("start binding %d : %" PRIintT "\n", i, offset);
numa_tonode_memory(startPos, sizeArr[i], i);
offset = offset + sizeArr[i];
}
return toBeReturned;
}
struct AsyncChunk {
intT accessCounter;
intT m;
intT *s;
};
struct LocalFrontier {
intT n;
intT m;
intT head;
intT tail;
intT emptySignal;
intT outEdgesCount;
intT startID;
intT endID;
bool *b;
intT *s;
intT sparseCounter;
intT **sparseChunks;
intT *chunkSizes;
intT *tmp;
bool isDense;
LocalFrontier(bool *_b, intT start, intT end):b(_b), startID(start), endID(end), n(end - start), m(0), isDense(true), s(NULL), outEdgesCount(0), sparseChunks(NULL), chunkSizes(NULL){}
bool inRange(intT index) { return (startID <= index && index < endID);}
inline void setBit(intT index, bool val) { b[index-startID] = val;}
inline bool getBit(intT index) { return b[index-startID];}
void toSparse() {
if (isDense) {
if (s != NULL)
free(s);
_seq<intT> R = sequence::packIndex(b, n);
s = R.A;
m = R.n;
{parallel_for (intT i = 0; i < m; i++) s[i] = s[i] + startID;}
if (m == 0) {
printf("%p\n", s);
} else {
printf("M is %" PRIintT " and first ele is %" PRIintT "\n", m, s[0]);
}
}
isDense = false;
}
void toDense() {
if (!isDense) {
{parallel_for(intT i=0;i<n;i++) b[i] = false;}
{parallel_for(intT i=0;i<m;i++) b[s[i] - startID] = true;}
}
//printf("hehe\n");
isDense = true;
}
void setSparse(intT _m, intT *_s) {
if (s != NULL) {
free(s);
}
m = _m;
s = _s;
isDense = false;
}
bool *swapBitVector(bool *newB) {
bool *tmp = b;
b = newB;
return tmp;
}
void clearFrontier() {
if (s != NULL) {
free(s);
}
s = NULL;
m = 0;
outEdgesCount = 0;
}
};
//*****VERTEX OBJECT*****
struct vertices {
intT n, m;
int numOfNodes;
intT numOfVertices;
intT *numOfVertexOnNode;
intT *offsets;
intT *numOfNonZero;
bool** d;
LocalFrontier **frontiers;
LocalFrontier **nextFrontiers;
bool isDense;
AsyncChunk **asyncQueue;
intT asyncEndSignal;
intT readerTail;
intT insertTail;
vertices(int _numOfNodes) {
this->numOfNodes = _numOfNodes;
d = (bool **)malloc(numOfNodes * sizeof(bool*));
frontiers = (LocalFrontier **)malloc(numOfNodes * sizeof(LocalFrontier*));
nextFrontiers = (LocalFrontier **)malloc(numOfNodes * sizeof(LocalFrontier*));
numOfVertexOnNode = (intT *)malloc(numOfNodes * sizeof(intT));
offsets = (intT *)malloc((numOfNodes + 1) * sizeof(intT));
numOfNonZero = (intT *)malloc(numOfNodes * sizeof(intT));
numOfVertices = 0;
m = -1;
}
/*
void registerArr(int nodeNum, bool *arr, intT size) {
d[nodeNum] = arr;
numOfVertexOnNode[nodeNum] = size;
}
*/
void registerFrontier(int nodeNum, LocalFrontier *frontier) {
frontiers[nodeNum] = frontier;
numOfVertexOnNode[nodeNum] = frontier->n;
isDense = frontier->isDense;
}
void toDense() {
if (isDense)
return;
else
isDense = true;
for (int i = 0; i< numOfNodes; i++) {
//printf("todense %d start m = %" PRIintT " n = %" PRIintT "\n", i, frontiers[i]->s[frontiers[i]->m - 1], frontiers[i]->n);
frontiers[i]->toDense();
}
}
void toSparse() {
if (!isDense)
return;
else
isDense = false;
for (int i = 0; i< numOfNodes; i++) {
if (frontiers[i]->isDense) {
//printf("real convert\n");
}
frontiers[i]->toSparse();
}
}
intT getEdgeStat() {
intT sum = 0;
for (int i = 0; i < numOfNodes; i++) {
sum = sum + frontiers[i]->outEdgesCount;
}
return sum;
}
void calculateOffsets() {
for (int i = 0; i < numOfNodes; i++) {
numOfVertices += numOfVertexOnNode[i];
}
offsets[0] = 0;
for (int i = 1; i < numOfNodes; i++) {
offsets[i] = numOfVertexOnNode[i-1] + offsets[i-1];
//printf("offset of %d: %" PRIintT "\n", i, offsets[i]);
}
offsets[numOfNodes] = numOfVertices;
}
intT getSize(int nodeNum) {
return numOfVertexOnNode[nodeNum];
}
intT getSparseSize(int nodeNum) {
return numOfNonZero[nodeNum];
}
void calculateNumOfNonZero(int nodeNum) {
numOfNonZero[nodeNum] = 0;
if (false && frontiers[nodeNum]->isDense) {
numOfNonZero[nodeNum] = sequence::sum(frontiers[nodeNum]->b, numOfVertexOnNode[nodeNum]);
frontiers[nodeNum]->m = numOfNonZero[nodeNum];
} else {
numOfNonZero[nodeNum] = frontiers[nodeNum]->m;
}
//printf("non zero count of %d: %" PRIintT "\n", nodeNum, frontiers[nodeNum]->m);
}
intT numNonzeros() {
if (m < 0) {
intT sum = 0;
for (int i = 0; i < numOfNodes; i++) {
sum = sum + numOfNonZero[i];
}
//printf("num of non zero: %" PRIintT "\n", sum);
m = sum;
}
return m;
}
bool isEmpty() {
if (m < 0) {
intT sum = 0;
for (int i = 0; i < numOfNodes; i++) {
sum = sum + numOfNonZero[i];
}
m = sum;
}
return (m == 0);
}
int getNodeNumOfIndex(intT index) {
int result = 0;
while (result < numOfNodes && offsets[result] <= index) {
result++;
}
return result - 1;
}
int getNodeNumOfSparseIndex(intT index) {
int result = 0;
intT accum = 0;
while (result < numOfNodes && accum <= index) {
accum += numOfNonZero[result];
result++;
}
return result - 1;
}
intT getOffset(int nodeNum) {
return offsets[nodeNum];
}
void setBit(intT index, bool bit) {
intT accum = 0;
int i = 0;
while (index >= accum + numOfVertexOnNode[i]) {
accum += numOfVertexOnNode[i];
i++;
}
*(frontiers[i]->b + (index - accum)) = bit;
}
bool getBit(intT index) {
intT accum = 0;
int i = 0;
while (index >= accum + numOfVertexOnNode[i]) {
accum += numOfVertexOnNode[i];
i++;
}
return *(frontiers[i]->b + (index - accum));
}
bool *getArr(int nodeNum) {
return frontiers[nodeNum]->b;
}
bool *getNextArr(int nodeNum) {
if (nextFrontiers[nodeNum] == NULL) return NULL;
return nextFrontiers[nodeNum]->b;
}
intT *getSparseArr(int nodeNum) {
return frontiers[nodeNum]->s;
}
LocalFrontier *getFrontier(int nodeNum) {
return frontiers[nodeNum];
}
LocalFrontier *swapFrontier(int nodeNum, LocalFrontier *newOne) {
if (nodeNum == 0) {
isDense = newOne->isDense;
}
LocalFrontier *oldOne = frontiers[nodeNum];
frontiers[nodeNum] = newOne;
m = -1;
return oldOne;
}
bool eq (vertices& b) {
return false;
}
void print() {
}
void del() {
free(offsets);
free(numOfVertexOnNode);
free(d);
}
};
struct Default_worker_arg {
void *GA;
int maxIter;
int tid;
int numOfNode;
intT rangeLow;
intT rangeHi;
};
struct Default_subworker_arg {
void *GA;
int maxIter;
int tid;
int subTid;
intT startPos;
intT endPos;
intT rangeLow;
intT rangeHi;
pthread_barrier_t *global_barr;
pthread_barrier_t *node_barr;
pthread_barrier_t *master_barr;
LocalFrontier *localFrontier;
volatile int *local_custom_counter;
volatile int *local_custom_toggle;
};
struct nonNegF{bool operator() (intT a) {return (a>=0);}};
//options to edgeMap for different versions of dense edgeMap (default is DENSE)
enum options {
DENSE, DENSE_PARALLEL, DENSE_FORWARD
};
Subworker_Partitioner dummyPartitioner(1);
//*****EDGE FUNCTIONS*****
template <class F, class vertex>
bool* edgeMapDense(wghGraph<vertex> GA, vertices* frontier, F f, LocalFrontier *next, bool parallel = 0, Subworker_Partitioner &subworker = dummyPartitioner) {
intT numVertices = GA.n;
intT size = next->endID - next->startID;
vertex *G = GA.V;
if (subworker.isSubMaster()) {
frontier->nextFrontiers[subworker.tid] = next;
}
subworker.globalWait();
intT localOffset = next->startID;
bool *localBitVec = frontier->getArr(subworker.tid);
int currNodeNum = 0;
bool *currBitVector = frontier->getNextArr(currNodeNum);
intT nextSwitchPoint = frontier->getSize(0);
intT currOffset = 0;
intT counter = 0;
intT startPos = subworker.dense_start;
intT endPos = subworker.dense_end;
while (startPos >= nextSwitchPoint) {
currOffset += frontier->getSize(currNodeNum);
nextSwitchPoint += frontier->getSize(currNodeNum + 1);
currNodeNum++;
currBitVector = frontier->getArr(currNodeNum);
}
for (intT i = startPos; i < endPos; i++){
//next->setBit(i, false);
if (f.cond(i)) {
intT d = G[i].getFakeInDegree();
for(intT j=0; j<d; j++){
intT ngh = G[i].getInNeighbor(j);
if (localBitVec[ngh - localOffset] && f.updateAtomic(ngh,i,G[i].getInWeight(j))) {
currBitVector[i - currOffset] = true;
}
if(!f.cond(i)) break;
//__builtin_prefetch(f.nextPrefetchAddr(G[i].getInNeighbor(j+3)), 1, 3);
}
}
}
return NULL;
}
template <class F, class vertex>
bool* edgeMapDenseForward(wghGraph<vertex> GA, vertices *frontier, F f, LocalFrontier *next, bool part = false, intT start = 0, intT end = 0) {
intT numVertices = GA.n;
vertex *G = GA.V;
int currNodeNum = 0;
bool *currBitVector = frontier->getArr(currNodeNum);
intT nextSwitchPoint = frontier->getSize(0);
intT currOffset = 0;
intT counter = 0;
intT m = 0;
intT outEdgesCount = 0;
bool *nextB = next->b;
intT startPos = 0;
intT endPos = numVertices;
if (part) {
startPos = start;
endPos = end;
currNodeNum = frontier->getNodeNumOfIndex(startPos);
//printf("nodeNum: %d %" PRIintT "\n", currNodeNum, endPos);
currBitVector = frontier->getArr(currNodeNum);
nextSwitchPoint = frontier->getOffset(currNodeNum+1);
currOffset = frontier->getOffset(currNodeNum);
}
for (intT i=startPos; i<endPos; i++){
if (i == nextSwitchPoint) {
currOffset += frontier->getSize(currNodeNum);
nextSwitchPoint += frontier->getSize(currNodeNum + 1);
currNodeNum++;
currBitVector = frontier->getArr(currNodeNum);
//printf("OK\n");
}
//printf("edgemap: %p\n", currBitVector);
m += G[i].getFakeDegree();
if (currBitVector[i-currOffset]) {
intT d = G[i].getFakeDegree();
for(intT j=0; j<d; j++){
uintT ngh = G[i].getOutNeighbor(j);
if (/*next->inRange(ngh) &&*/ f.cond(ngh) && f.updateAtomic(i, ngh, G[i].getOutWeight(j))) {
/*
if (!next->getBit(ngh)) {
m++;
outEdgesCount += G[ngh].getOutDegree();
}
*/
//intT idx = ngh - next->startID;
//m += 1 - SXCHG((char *)&(nextB[idx]), 1);
next->setBit(ngh, true);
}
//__builtin_prefetch(f.nextPrefetchAddr(G[i].getOutNeighbor(j+1)), 1, 0);
}
}
//__builtin_prefetch(f.nextPrefetchAddr(i+1), 0, 3);
//__builtin_prefetch(G[i+3].getOutNeighborPtr(), 0, 3);
}
//writeAdd(&(next->m), m);
//writeAdd(&(next->outEdgesCount), outEdgesCount);
//printf("edgeMap: %" PRIintT " %" PRIintT "\n", m, outEdgesCount);
return NULL;
}
template <class F, class vertex>
bool* edgeMapDenseReduce(wghGraph<vertex> GA, vertices* frontier, F f, LocalFrontier *next, bool parallel = 0, Subworker_Partitioner &subworker = dummyPartitioner) {
intT numVertices = GA.n;
intT size = next->endID - next->startID;
vertex *G = GA.V;
if (subworker.isSubMaster()) {
frontier->nextFrontiers[subworker.tid] = next;
}
//subworker.globalWait();
pthread_barrier_wait(subworker.global_barr);
intT localOffset = next->startID;
bool *localBitVec = frontier->getArr(subworker.tid);
int currNodeNum = 0;
bool *currBitVector = frontier->getNextArr(currNodeNum);
intT nextSwitchPoint = frontier->getSize(0);
intT currOffset = 0;
intT counter = 0;
intT startPos = subworker.dense_start;
intT endPos = subworker.dense_end;
while (startPos >= nextSwitchPoint) {
currOffset += frontier->getSize(currNodeNum);
nextSwitchPoint += frontier->getSize(currNodeNum + 1);
currNodeNum++;
currBitVector = frontier->getNextArr(currNodeNum);
}
for (intT i = startPos; i < endPos; i++){
//next->setBit(i, false);
if (i >= nextSwitchPoint) {
currOffset += frontier->getSize(currNodeNum);
nextSwitchPoint += frontier->getSize(currNodeNum + 1);
currNodeNum++;
currBitVector = frontier->getNextArr(currNodeNum);
}
if (true || f.cond(i)) {
double data[2];
intT d = G[i].getFakeInDegree();
f.initFunc((void *)data);
bool shouldActive = false;
for(intT j=0; j<d; j++){
intT ngh = G[i].getInNeighbor(j);
if (/*localBitVec[ngh - localOffset] && */f.reduceFunc((void *)data, ngh, G[i].getInWeight(j))) {
currBitVector[i - currOffset] = true;
//shouldActive = true;
}