?? aphidiee.ps
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%I312 206 324 230 Line%I 2EndBegin %I Line%I b 655351 0 0 [] 0 SetB%I cfg Black0 0 0 SetCFg%I cbg White1 1 1 SetCBgnone SetP %I p n%I t[ 0.5 0 0 0.5 234 263 ] concat%I288 398 348 230 Line%I 2EndBegin %I Line%I b 655351 0 0 [] 0 SetB%I cfg Black0 0 0 SetCFg%I cbg White1 1 1 SetCBgnone SetP %I p n%I t[ 0.5 0 0 0.5 234 263 ] concat%I324 230 348 230 Line%I 2EndBegin %I Text%I cfg Black0 0 0 SetCFg%I f -*-helvetica-medium-r-normal-*-12-*-*-*-*-*-*-*Helvetica 12 SetF%I t[ 1 0 0 1 354 341 ] concat%I[(Slave 2)] TextEndBegin %I Pict%I b u%I cfg u%I cbg u%I f u%I p u%I t[ 1 0 0 1 35.5 -97.5 ] concatBegin %I Elli%I b 655351 0 0 [] 0 SetB%I cfg Black0 0 0 SetCFg%I cbg White1 1 1 SetCBgnone SetP %I p n%I t[ 0.5 -0 -0 0.5 278 428 ] concat%I128 224 12 12 ElliEndBegin %I Text%I cfg Black0 0 0 SetCFg%I f -*-helvetica-medium-r-normal-*-12-*-*-*-*-*-*-*Helvetica 12 SetF%I t[ 1 0 0 1 339 543.5 ] concat%I[(2)] TextEndEnd %I eopEnd %I eopBegin %I Line%I b 655351 0 0 [] 0 SetB%I cfg Black0 0 0 SetCFg%I cbg White1 1 1 SetCBgnone SetP %I p n%I t[ 0.5 0 0 0.5 362 230 ] concat%I188 248 212 284 Line%I 2EndBegin %I Line%I b 655351 0 0 [] 0 SetB%I cfg Black0 0 0 SetCFg%I cbg White1 1 1 SetCBgnone SetP %I p n%I t[ 0.5 0 0 0.5 362 230 ] concat%I212 284 236 248 Line%I 2EndBegin %I Line%I b 655351 0 0 [] 0 SetB%I cfg Black0 0 0 SetCFg%I cbg White1 1 1 SetCBgnone SetP %I p n%I t[ 0.5 0 0 0.5 362 230 ] concat%I236 248 248 296 Line%I 2EndBegin %I Line%I b 655351 0 0 [] 0 SetB%I cfg Black0 0 0 SetCFg%I cbg White1 1 1 SetCBgnone SetP %I p n%I t[ 0.5 0 0 0.5 362 230 ] concat%I248 296 272 260 Line%I 2EndBegin %I Line%I b 655351 0 0 [] 0 SetB%I cfg Black0 0 0 SetCFg%I cbg White1 1 1 SetCBgnone SetP %I p n%I t[ 0.5 0 0 0.5 362 230 ] concat%I272 260 284 296 Line%I 2EndBegin %I Line%I b 655351 0 0 [] 0 SetB%I cfg Black0 0 0 SetCFg%I cbg White1 1 1 SetCBgnone SetP %I p n%I t[ 0.5 0 0 0.5 362 230 ] concat%I284 296 308 272 Line%I 2EndBegin %I Line%I b 655351 0 0 [] 0 SetB%I cfg Black0 0 0 SetCFg%I cbg White1 1 1 SetCBgnone SetP %I p n%I t[ 0.5 0 0 0.5 362 230 ] concat%I308 272 320 296 Line%I 2EndBegin %I Line%I b 655351 0 0 [] 0 SetB%I cfg Black0 0 0 SetCFg%I cbg White1 1 1 SetCBgnone SetP %I p n%I t[ 0.5 0 0 0.5 362 230 ] concat%I260 464 320 296 Line%I 2EndBegin %I Line%I b 655351 0 0 [] 0 SetB%I cfg Black0 0 0 SetCFg%I cbg White1 1 1 SetCBgnone SetP %I p n%I t[ 0.5 0 0 0.5 362 230 ] concat%I260 464 188 248 Line%I 2EndBegin %I Text%I cfg Black0 0 0 SetCFg%I f -*-helvetica-medium-r-normal-*-12-*-*-*-*-*-*-*Helvetica 12 SetF%I t[ 1 0 0 1 468 341 ] concat%I[(Slave 3)] TextEndBegin %I Pict%I b u%I cfg u%I cbg u%I f u%I p u%I t[ 1 0 0 1 78 -97 ] concatBegin %I Elli%I b 655351 0 0 [] 0 SetB%I cfg Black0 0 0 SetCFg%I cbg White1 1 1 SetCBgnone SetP %I p n%I t[ 0.5 -0 -0 0.5 278 428 ] concat%I272 224 12 12 ElliEndBegin %I Text%I cfg Black0 0 0 SetCFg%I f -*-helvetica-medium-r-normal-*-12-*-*-*-*-*-*-*Helvetica 12 SetF%I t[ 1 0 0 1 411 544 ] concat%I[(6)] TextEndEnd %I eopBegin %I Pict%I b u%I cfg u%I cbg u%I f u%I p u%I t[ 1 0 0 1 -24.5 -99 ] concatBegin %I Elli%I b 655351 0 0 [] 0 SetB%I cfg Black0 0 0 SetCFg%I cbg White1 1 1 SetCBgnone SetP %I p n%I t[ 0.5 -0 -0 0.5 278 428 ] concat%I32 224 12 12 ElliEndBegin %I Text%I cfg Black0 0 0 SetCFg%I f -*-helvetica-medium-r-normal-*-12-*-*-*-*-*-*-*Helvetica 12 SetF%I t[ 1 0 0 1 291 543.5 ] concat%I[(7)] TextEndEnd %I eopBegin %I Line%I b 655351 0 0 [] 0 SetB%I cfg Black0 0 0 SetCFg%I cbg White1 1 1 SetCBgnone SetP %I p n%I t[ 0.5 0 0 0.5 130 296 ] concat%I100 320 148 320 Line%I 2EndBegin %I Line%I b 655351 0 0 [] 0 SetB%I cfg Black0 0 0 SetCFg%I cbg White1 1 1 SetCBgnone SetP %I p n%I t[ 0.5 0 0 0.5 130 296 ] concat%I100 164 148 164 Line%I 2EndBegin %I Text%I cfg Black0 0 0 SetCFg%I f -*-helvetica-medium-r-normal-*-12-*-*-*-*-*-*-*Helvetica 12 SetF%I t[ 1 0 0 1 180.5 421.5 ] concat%I[(d-d')] TextEndBegin %I Line%I b 655351 0 1 [] 0 SetB%I cfg Black0 0 0 SetCFg%I cbg White1 1 1 SetCBgnone SetP %I p n%I t[ 0.5 0 0 0.5 130 296 ] concat%I124 224 124 176 Line%I 2EndBegin %I Line%I b 655351 0 1 [] 0 SetB%I cfg Black0 0 0 SetCFg%I cbg White1 1 1 SetCBgnone SetP %I p n%I t[ 0.5 0 0 0.5 130 296 ] concat%I124 260 124 308 Line%I 2EndBegin %I Text%I cfg Black0 0 0 SetCFg%I f -*-helvetica-medium-r-normal-*-12-*-*-*-*-*-*-*Helvetica 12 SetF%I t[ 1 0 0 1 378 497 ] concat%I[(+4/5)] TextEndBegin %I Pict%I b u%I cfg u%I cbg u%I f u%I p u%I t[ 1 0 0 1 -30 -36 ] concatBegin %I Elli%I b 655351 0 0 [] 0 SetB%I cfg Black0 0 0 SetCFg%I cbg White1 1 1 SetCBgnone SetP %I p n%I t[ 0.5 -0 -0 0.5 278 362 ] concat%I356 380 12 12 ElliEndBegin %I Text%I cfg Black0 0 0 SetCFg%I f -*-helvetica-medium-r-normal-*-12-*-*-*-*-*-*-*Helvetica 12 SetF%I t[ 1 0 0 1 453 555.5 ] concat%I[(8)] TextEndEnd %I eopBegin %I Text%I cfg Black0 0 0 SetCFg%I f -*-helvetica-medium-r-normal-*-12-*-*-*-*-*-*-*Helvetica 12 SetF%I t[ 1 0 0 1 414 497 ] concat%I[(-3/1)] TextEndBegin %I Text%I cfg Black0 0 0 SetCFg%I f -*-helvetica-medium-r-normal-*-12-*-*-*-*-*-*-*Helvetica 12 SetF%I t[ 1 0 0 1 462 497 ] concat%I[(<0/4)] TextEndBegin %I Rect%I b 655351 0 0 [] 0 SetB%I cfg Black0 0 0 SetCFg%I cbg White1 1 1 SetCBgnone SetP %I p n%I t[ 1 -0 -0 1 168 230 ] concat%I288 250 360 298 RectEndBegin %I Rect%I b 655351 0 0 [] 0 SetB%I cfg Black0 0 0 SetCFg%I cbg White1 1 1 SetCBgnone SetP %I p n%I t[ 1 -0 -0 1 174 230 ] concat%I162 250 270 298 RectEndEnd %I eopshowpageend%%EndDocument endTexFig -7 966 a Fg(Figure)13 b(1.)e(A)g(Snapshot)i(of)f(an)g(APHID)e(Sear)o(ch)-91 1095 y Fn(by)d(the)g(master)n(,)j(there)d(is)h(an)f(entry)g(in)g(the)g(APHID)h(table.)13 b(Informa-)-91 1140 y(tion)6b(maintained)i(on)f(the)h(leaves)g(includes)g(the)f(moves)i(required)e(to)-91 1186 y(generate)j(the)g(leaf)g(positions)e(from)h(the)h(root)fFf(R)p Fn(,)h(the)g(approximate)-91 1232 y(location)e(of)i(the)g(leaf)g(in)f(the)h(tree)g(\(which)f(is)h(used)g(by)f(the)h(slave)g(to)-911277 y(prioritize)h(work\),)j(whether)f(this)f(leaf)i(was)g(touched)f(on)f(the)i(last)-91 1323 y(pass)f(that)e(the)h(master)h(executed,)h(and)e(the)g(number)g(of)g(the)g(slave)-91 1369 y(that)d(the)i(leaf)f(was)h(allocated)f(to.)-41 1414 y(In)g(our)g(example,)j(we)e(can)h(see)g(that)e(there)h(are)g(approximately)-91 1460 y(the)k(same)j(number)d(of)h(leaves)g(which)g(have)g(been)g(allocated)g(to)-911506 y(each)e(slave.)24 b(Note)14 b(that)e(there)i(is)f(an)h(additional)d(leaf,)k(8,)g(that)d(is)-91 1551 y(not)e(represented)h(in)g(the)g(master)r(')n(s)g Fo(d)454 1536 y Fl(0)476 1551y Fn(ply)f(search)i(tree.)17 b(This)11 b(leaf)-91 1597y(node)d(has)i(been)f(visited)f(on)g(a)h(previous)f(pass)i(of)e(the)hFo(d)705 1582 y Fl(0)725 1597 y Fn(ply)f(search)-91 1643y(tree,)14 b(but)d(was)j(not)d(touched)i(on)f(the)g(latest)h(pass.)21b(However)n(,)14 b(the)-91 1688 y(information)7 b(that)i(the)g(slave)h(has)g(generated)f(may)h(be)g(needed)g(in)f(a)-91 1734y(later)h(pass)h(of)f(the)g(tree)g(and)h(is)f(not)f(deleted)i(by)e(the)i(master)n(.)-41 1779 y(Leaves)h(are)g(allocated)e(to)g(the)h(slaves)g(in)f(a)i(round-robin)c(man-)-91 1825 y(ner)n(.)30 b(Although)13b(there)j(may)g(be)g(better)f(methods)g(of)g(allocating)-911871 y(leaves,)c(it)e(has)i(been)f(found)f(that)h(this)f(is)h(a)g(reasonable)h(method)f(of)-91 1916 y(balancing)g(the)g(work)f(on)h(a)h(small)f(number)h(of)f(processors.)-41 1962 y(The)f(slave')n(s)g(part)f(of)g(the)g(table,)i(illustrated)c(by)i(the)h(area)h(below)-912008 y(the)e(dashed)g(line,)g(contains)f(information)f(on)i(the)g(result)f(of)g(search-)-91 2053 y(ing)j(the)h(position)e(to)i(various)f(depths)h(of)g(search.)18 b(The)12 b(\252best\272)g(in-)-912099 y(formation)i(and)i(the)f(ply)g(to)g(which)g(the)g(leaf)h(was)g(examined)g(is)-91 2145 y(given)10 b(underneath)h(each)i(leaf)e(node)h(in)e(the)h(tree.)18 b(For)11 b(leaf)h(1,)f(the)-91 2190y(score)i(returned)f(is)g(-1)g(with)f(a)i(search)h(depth)e(of)g(4.)20b(Leaf)14 b(3)e(illus-)-91 2236 y(trates)e(that)f(the)h(score)h(information)d(returned)h(by)h(the)g(slave
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