/* Configure walk sources. Note, GraphChi's internal ids are used. */
DrunkardJob drunkardJob = this.drunkardMobEngine.addJob("personalizedPageRank",
EdgeDirection.OUT_EDGES, this, companion);
drunkardJob.configureSourceRangeInternalIds(firstSource, numSources, numWalksPerSource);
drunkardMobEngine.run(numIters);
/* Ask companion to dump the results to file */
int nTop = 100;
companion.outputDistributions(baseFilename + "_ppr_" + firstSource + "_"