| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| |
| // Kronecker graph generator parameters: |
| a = 0.57; |
| b = 0.19; |
| c = 0.19; |
| d = 1-(a+b+c); |
| |
| function randomEdge ( imin: int, imax: int, jmin: int, jmax: int ): (int,int) { |
| if (imin = imax and jmin = jmax) |
| then (imin,jmin) |
| else let n = random(1000) |
| in if (n as float <= 1000*a) |
| then randomEdge(imin,(imin+imax)/2,jmin,(jmin+jmax)/2) |
| else if (n as float <= 1000*(a+b)) |
| then randomEdge((imin+imax)/2,imax,jmin,(jmin+jmax)/2) |
| else if (n as float <= 1000*(a+b+c)) |
| then randomEdge(imin,(imin+imax)/2,(jmin+jmax)/2,jmax) |
| else randomEdge((imin+imax)/2,imax,(jmin+jmax)/2,jmax) |
| }; |
| |
| store "graph.bin" |
| from select distinct randomEdge(0,toInt(args[0]),0,toInt(args[0])) |
| from i in 1...(toLong(args[1])); |