# set various constants dimension = 2 max_it = 500 temp = 1 # get number of nodes and an edgelist nodes = len(g.vertices()) edgelist = np.array( [edge.tuple for edge in g.edges()], np.int32) start = time.clock() # place nodes initially uniformly at random in # [-sqrt(nodes)/2, +sqrt(nodes)/2]^2 pos = math.sqrt(nodes) * np.random.random_sample( (nodes, dimension) ) - math.sqrt(nodes)/2 pos = pos.astype( np.float32) ) # call fastlayout function fl.layout_fr_omp_simd( edgelist, pos, max_it, temp ) fastlayout = time.clock() fastlayout = fastlayout - start # draw the graph in graph_tool gt.graph_draw(g, pos=pos, output="output/price_network-fr-fastlayout.pdf") # call and plot the reference implementation of graph-tool start = time.clock() reference = gt.fruchterman_reingold_layout(g, n_iter=1000) reflayout = time.clock() reflayout = reflayout - start gt.graph_draw(g, pos=reference, output="output/price_network-fr-reference.pdf") print "Time for fastlayout is: ", fastlayout print "Time for reference implementaion in gt is: ", reflayout
print 'layout_fr_omp' start = time.clock() pos = fl.layout_fr_omp( nodes*dimension, edgelist, max_it, temp ) pos = np.reshape(pos, (nodes, dimension)) float2Layout = ig.Layout( tuple(map(tuple, pos)) ) elapsed = time.clock() elapsed = elapsed - start print "Time spent for fastlayout with OpenMP is: ", elapsed ig.plot(g, "output/plot_fr_omp.png", layout=float2Layout) print 'layout_fr_simd' start = time.clock() pos = fl.layout_fr_simd( nodes*dimension, edgelist, max_it, temp ) pos = np.reshape(pos, (nodes, dimension)) float3Layout = ig.Layout( tuple(map(tuple, pos)) ) elapsed = time.clock() elapsed = elapsed - start print "Time spent for fastlayout with vectorization is: ", elapsed ig.plot(g, "output/plot_fr_simd.png", layout=float3Layout) print 'layout_fr_omp_simd' start = time.clock() pos = fl.layout_fr_omp_simd( nodes*dimension, edgelist, max_it, temp ) pos = np.reshape( pos, (nodes, dimension) ) float6Layout = ig.Layout( tuple(map(tuple, pos)) ) elapsed = time.clock() elapsed = elapsed - start print "Time spent for fastlayout with OpenMP and vectorization is: ", elapsed ig.plot(g, "output/plot_fr_omp_simd.png", layout=float6Layout)
floatLayout = ig.Layout( tuple(map(tuple, floatPos )) ) ig.plot(g, "output/plot_float_baseline.png", layout=floatLayout) #print 'layout_fr_omp' #fl.layout_fr_omp( edges, float2Pos, max_it, temp ) #float2Layout = ig.Layout( tuple(map(tuple, float2Pos)) ) #ig.plot(g, "output/plot_fr_omp.png", layout=float2Layout) #print 'layout_fr_simd' #fl.layout_fr_simd( edges, float3Pos, max_it, temp ) #float3Layout = ig.Layout( tuple(map(tuple, float3Pos)) ) #ig.plot(g, "output/plot_fr_simd.png", layout=float3Layout) #print 'layout_fr_simd_1x4' #fl.layout_fr_simd_1x4( edges, float4Pos, max_it, temp ) #float4Layout = ig.Layout( tuple(map(tuple, float4Pos)) ) #ig.plot(g, "output/plot_fr_simd_1x4.png", layout=float4Layout) #print 'layout_fr_2x2' #fl.layout_fr_2x2( edges, float5Pos, max_it, temp ) #float5Layout = ig.Layout( tuple(map(tuple, float5Pos)) ) #ig.plot(g, "output/plot_fr_2x2.png", layout=float5Layout) print 'layout_fr_omp_simd' fl.layout_fr_omp_simd( edges, float6Pos, max_it, temp ) float6Layout = ig.Layout( tuple(map(tuple, float6Pos)) ) ig.plot(g, "output/plot_fr_omp_simd.png", layout=float6Layout) #print np.array_str( floatPos ) #print np.array_str( float2Pos )
