001/* 002 * $Id$ 003 */ 004 005package edu.jas.gb; 006 007 008import java.io.IOException; 009import java.io.Reader; 010import java.io.StringReader; 011import java.util.ArrayList; 012import java.util.List; 013 014import junit.framework.Test; 015import junit.framework.TestCase; 016import junit.framework.TestSuite; 017import mpi.Comm; 018 019import edu.jas.arith.BigRational; 020import edu.jas.kern.ComputerThreads; 021import edu.jas.kern.MPJEngine; 022import edu.jas.poly.GenPolynomial; 023import edu.jas.poly.GenPolynomialRing; 024import edu.jas.poly.GenPolynomialTokenizer; 025import edu.jas.poly.PolynomialList; 026 027 028/** 029 * Distributed GroebnerBase MPJ tests with JUnit. 030 * @author Heinz Kredel 031 */ 032 033public class GroebnerBaseDistMPJTest extends TestCase { 034 035 036 protected static Comm engine; 037 038 039 boolean mpjBug = true; // bug after cancel recv 040 041 042 /** 043 * main 044 */ 045 public static void main(String[] args) throws IOException { 046 engine = MPJEngine.getCommunicator(args); 047 junit.textui.TestRunner.run(suite()); 048 engine.Barrier(); 049 MPJEngine.terminate(); 050 //ComputerThreads.terminate(); 051 } 052 053 054 /** 055 * Constructs a <CODE>GroebnerBaseDistMPJTest</CODE> object. 056 * @param name String. 057 */ 058 public GroebnerBaseDistMPJTest(String name) { 059 super(name); 060 } 061 062 063 /** 064 * suite. 065 */ 066 public static Test suite() { 067 TestSuite suite = new TestSuite(GroebnerBaseDistMPJTest.class); 068 return suite; 069 } 070 071 072 int port = 4711; 073 074 075 String host = "localhost"; 076 077 078 GenPolynomialRing<BigRational> fac; 079 080 081 List<GenPolynomial<BigRational>> L; 082 083 084 PolynomialList<BigRational> F; 085 086 087 List<GenPolynomial<BigRational>> G; 088 089 090 GroebnerBase<BigRational> bbseq; 091 092 093 GroebnerBaseDistributedMPJ<BigRational> bbdist; 094 095 096 GroebnerBaseDistributedMPJ<BigRational> bbdists; 097 098 099 GenPolynomial<BigRational> a; 100 101 102 GenPolynomial<BigRational> b; 103 104 105 GenPolynomial<BigRational> c; 106 107 108 GenPolynomial<BigRational> d; 109 110 111 GenPolynomial<BigRational> e; 112 113 114 int rl = 3; //4; //3; 115 116 117 int kl = 4; 118 119 120 int ll = 7; 121 122 123 int el = 3; 124 125 126 float q = 0.2f; //0.4f 127 128 129 int threads; 130 131 132 @Override 133 protected void setUp() { 134 try { 135 threads = engine.Size(); 136 BigRational coeff = new BigRational(9); 137 fac = new GenPolynomialRing<BigRational>(coeff, rl); 138 a = b = c = d = e = null; 139 bbseq = new GroebnerBaseSeq<BigRational>(); 140 bbdists = new GroebnerBaseDistributedMPJ<BigRational>(threads); 141 bbdist = new GroebnerBaseDistributedMPJ<BigRational>(threads, 142 new OrderedSyzPairlist<BigRational>()); 143 } catch (IOException e) { 144 e.printStackTrace(); 145 } 146 } 147 148 149 @Override 150 protected void tearDown() { 151 a = b = c = d = e = null; 152 fac = null; 153 bbseq = null; 154 bbdist.terminate(); 155 bbdist = null; 156 bbdists.terminate(); 157 bbdists = null; 158 ComputerThreads.terminate(); 159 } 160 161 162 /** 163 * Test distributed GBase. 164 */ 165 public void testDistributedGBase() { 166 L = new ArrayList<GenPolynomial<BigRational>>(); 167 if (engine.Rank() == 0) { 168 a = fac.random(kl, ll, el, q); 169 b = fac.random(kl, ll, el, q); 170 c = fac.random(kl, ll, el, q); 171 d = fac.random(kl, ll, el, q); 172 e = d; //fac.random(kl, ll, el, q ); 173 } 174 if (engine.Rank() == 0) { 175 assertTrue("not isZERO( a )", !a.isZERO()); 176 L.add(a); 177 } 178 179 L = bbdist.GB(L); 180 if (engine.Rank() == 0) { 181 assertTrue("isGB( { a } )", bbseq.isGB(L)); 182 assertTrue("not isZERO( b )", !b.isZERO()); 183 L.add(b); 184 //System.out.println("L = " + L.size() ); 185 } 186 if (mpjBug) { 187 return; 188 } 189 190 L = bbdist.GB(L); 191 if (engine.Rank() == 0) { 192 assertTrue("isGB( { a, b } )", bbseq.isGB(L)); 193 assertTrue("not isZERO( c )", !c.isZERO()); 194 L.add(c); 195 } 196 197 L = bbdist.GB(L); 198 if (engine.Rank() == 0) { 199 assertTrue("isGB( { a, b, c } )", bbseq.isGB(L)); 200 assertTrue("not isZERO( d )", !d.isZERO()); 201 L.add(d); 202 } 203 L = bbdist.GB(L); 204 if (engine.Rank() == 0) { 205 assertTrue("isGB( { a, b, c, d } )", bbseq.isGB(L)); 206 assertTrue("not isZERO( e )", !e.isZERO()); 207 L.add(e); 208 } 209 L = bbdist.GB(L); 210 if (engine.Rank() == 0) { 211 assertTrue("isGB( { a, b, c, d, e } )", bbseq.isGB(L)); 212 } 213 } 214 215 216 /** 217 * Test Trinks7 GBase. 218 */ 219 @SuppressWarnings("unchecked") 220 public void testTrinks7GBase() { 221 List<GenPolynomial<BigRational>> Fl; 222 long t = 0; 223 if (engine.Rank() == 0) { 224 String exam = "(B,S,T,Z,P,W) L " + "( " + "( 45 P + 35 S - 165 B - 36 ), " 225 + "( 35 P + 40 Z + 25 T - 27 S ), " 226 + "( 15 W + 25 S P + 30 Z - 18 T - 165 B**2 ), " 227 + "( - 9 W + 15 T P + 20 S Z ), " + "( P W + 2 T Z - 11 B**3 ), " 228 + "( 99 W - 11 B S + 3 B**2 ), " + "( B**2 + 33/50 B + 2673/10000 ) " + ") "; 229 Reader source = new StringReader(exam); 230 GenPolynomialTokenizer parser = new GenPolynomialTokenizer(source); 231 try { 232 F = (PolynomialList<BigRational>) parser.nextPolynomialSet(); 233 } catch (IOException e) { 234 fail("" + e); 235 } 236 System.out.println("F = " + F); 237 Fl = F.list; 238 t = System.currentTimeMillis(); 239 } else { 240 Fl = null; 241 } 242 243 G = bbdists.GB(Fl); 244 245 if (engine.Rank() == 0) { 246 t = System.currentTimeMillis() - t; 247 assertTrue("isGB( GB(Trinks7) )", bbseq.isGB(G)); 248 assertEquals("#GB(Trinks7) == 6", 6, G.size()); 249 //PolynomialList<BigRational> trinks = new PolynomialList<BigRational>(F.ring, G); 250 System.out.println("G = " + G); 251 System.out.println("executed in " + t + " milliseconds"); 252 } 253 } 254 255}