/usr/share/sdpa/libexample/example1.cpp is in libsdpa-dev 7.3.9+dfsg-1build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 | /* -------------------------------------------------------------
This file is a component of SDPA
Copyright (C) 2004-2013 SDPA Project
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
------------------------------------------------------------- */
// Here is the start of ``example1.cpp''
#include <cstdio>
#include <cstdlib>
#include <sdpa_call.h>
/*
example1.dat:
"Example 1: mDim = 3, nBLOCK = 1, {2}"
3 = mDIM
1 = nBLOCK
2 = bLOCKsTRUCT
{48, -8, 20}
{ {-11, 0}, { 0, 23} }
{ { 10, 4}, { 4, 0} }
{ { 0, 0}, { 0, -8} }
{ { 0, -8}, {-8, -2} }
*/
void printVector(double* ele, int dim, char* printFormat,
FILE* fpout);
void printMatrix(double* ele, int dim, char* printFormat,
FILE* fpout);
void printDimacsError(double dimacs_error[7],char* printFormat,
FILE* fpout);
int main ()
{
SDPA::printSDPAVersion(stdout);
SDPA Problem1;
Problem1.setDisplay(stdout);
// All parameteres are renewed
Problem1.setParameterType(SDPA::PARAMETER_DEFAULT);
// If necessary, each parameter can be set independently
// Problem1.setParameterMaxIteration(100);
// Problem1.setParameterEpsilonStar(1.0e-7);
// Problem1.setParameterLambdaStar(1.0e+2);
// Problem1.setParameterOmegaStar(2.0);
// Problem1.setParameterLowerBound(-1.0e+5);
// Problem1.setParameterUppwerBound(1.0e+5);
// Problem1.setParameterBetaStar(0.1);
// Problem1.setParameterBetaBar(0.2);
// Problem1.setParameterGammaStar(0.9);
// Problem1.setParameterEpsilonDash(1.0e-7);
// Problem1.setParameterPrintXVec((char*)"%+8.3e" );
// Problem1.setParameterPrintXMat((char*)"%+8.3e" );
// Problem1.setParameterPrintYMat((char*)"%+8.3e" );
// Problem1.setParameterPrintInformation((char*)"%+10.16e");
Problem1.printParameters(stdout);
int mDIM = 3;
int nBlock = 1;
Problem1.inputConstraintNumber(mDIM);
Problem1.inputBlockNumber(nBlock);
Problem1.inputBlockSize(1,2);
Problem1.inputBlockType(1,SDPA::SDP);
Problem1.initializeUpperTriangleSpace();
Problem1.inputCVec(1,48);
Problem1.inputCVec(2,-8);
Problem1.inputCVec(3,20);
Problem1.inputElement(0, 1, 1, 1, -11);
Problem1.inputElement(0, 1, 2, 2, 23);
Problem1.inputElement(1, 1, 1, 1, 10);
Problem1.inputElement(1, 1, 1, 2, 4);
Problem1.inputElement(2, 1, 2, 2, -8);
Problem1.inputElement(3, 1, 1, 2, -8);
Problem1.inputElement(3, 1, 2, 2, -2);
Problem1.initializeUpperTriangle();
Problem1.initializeSolve();
// if necessary, dump input data and initial point
// Problem1.writeInputSparse((char*)"tmp.dat-s",(char*)"%+8.3e");
// Problem1.writeInitSparse((char*)"tmp.ini-s",(char*)"%+8.3e");
Problem1.solve();
fprintf(stdout, "\nStop iteration = %d\n",
Problem1.getIteration());
char phase_string[30];
Problem1.getPhaseString(phase_string);
fprintf(stdout, "Phase = %s\n", phase_string);
fprintf(stdout, "objValPrimal = %+10.6e\n",
Problem1.getPrimalObj());
fprintf(stdout, "objValDual = %+10.6e\n",
Problem1.getDualObj());
fprintf(stdout, "p. feas. error = %+10.6e\n",
Problem1.getPrimalError());
fprintf(stdout, "d. feas. error = %+10.6e\n\n",
Problem1.getDualError());
fprintf(stdout, "xVec = \n");
// Problem1.printResultXVec();
printVector(Problem1.getResultXVec(),
Problem1.getConstraintNumber(), (char*)"%+8.3e",
stdout);
fprintf(stdout, "xMat = \n");
// Problem1.printResultXMat();
for (int l=0; l<Problem1.getBlockNumber(); ++l) {
if (Problem1.getBlockType(l+1) == SDPA::SDP) {
printMatrix(Problem1.getResultXMat(l+1),
Problem1.getBlockSize(l+1), (char*)"%+8.3e",
stdout);
}
else if (Problem1.getBlockType(l+1) == SDPA::SOCP) {
printf("current version does not support SOCP\n");
}
if (Problem1.getBlockType(l+1) == SDPA::LP) {
printVector(Problem1.getResultXMat(l+1),
Problem1.getBlockSize(l+1), (char*)"%+8.3e",
stdout);
}
}
fprintf(stdout, "yMat = \n");
// Problem1.printResultYMat();
for (int l=0; l<Problem1.getBlockNumber(); ++l) {
if (Problem1.getBlockType(l+1) == SDPA::SDP) {
printMatrix(Problem1.getResultYMat(l+1),
Problem1.getBlockSize(l+1), (char*)"%+8.3e",
stdout);
}
else if (Problem1.getBlockType(l+1) == SDPA::SOCP) {
printf("current version does not support SOCP\n");
}
if (Problem1.getBlockType(l+1) == SDPA::LP) {
printVector(Problem1.getResultYMat(l+1),
Problem1.getBlockSize(l+1), (char*)"%+8.3e",
stdout);
}
}
double dimacs_error[7];
Problem1.getDimacsError(dimacs_error);
printDimacsError(dimacs_error,(char*)"%+8.3e",stdout);
// Problem1.printComputationTime(stdout);
Problem1.terminate();
exit(0);
};
void printVector(double* ele, int dim, char* printFormat, FILE* fpout)
{
fprintf(fpout,"[ ");
for (int k=0; k<dim-1; ++k) {
fprintf(fpout,printFormat,ele[k]);
fprintf(fpout," ");
}
fprintf(fpout,printFormat,ele[dim-1]);
fprintf(fpout,"]; \n");
}
void printMatrix(double* ele, int dim, char* printFormat, FILE* fpout)
{
fprintf(fpout,"[\n");
for (int i=0; i<dim; ++i) {
fprintf(fpout,"[ ");
for (int j=0; j<dim-1; ++j) {
fprintf(fpout,printFormat,ele[i+dim*j]);
fprintf(fpout," ");
}
fprintf(fpout,printFormat,ele[i+dim*(dim-1)]);
fprintf(fpout,"]; \n");
}
fprintf(fpout,"]; \n");
}
void printDimacsError(double dimacs_error[7],char* printFormat,
FILE* fpout)
{
fprintf(fpout, "\n");
fprintf(fpout, "* DIMACS_ERRORS * \n");
fprintf(fpout, "err1 = ");
fprintf(fpout, printFormat, dimacs_error[1]);
fprintf(fpout, " [||Ax-b|| / (1+||b||_1)]\n");
fprintf(fpout, "err2 = ");
fprintf(fpout, printFormat, dimacs_error[2]);
fprintf(fpout, " [max(0, -lambda(x)/(1+||b||_1))]\n");
fprintf(fpout, "err3 = ");
fprintf(fpout, printFormat, dimacs_error[3]);
fprintf(fpout, " [||A^Ty + z - c || / (1+||c||_1)]\n");
fprintf(fpout, "err4 = ");
fprintf(fpout, printFormat, dimacs_error[4]);
fprintf(fpout, " [max(0, -lambda(z)/(1+||c||_1))]\n");
fprintf(fpout, "err5 = ");
fprintf(fpout, printFormat, dimacs_error[5]);
fprintf(fpout, " [(<c,x> - <b,y>) / (1 + |<c,x>| + |<b,y>|)]\n");
fprintf(fpout, "err6 = ");
fprintf(fpout, printFormat, dimacs_error[6]);
fprintf(fpout, " [<x,z> / (1 + |<c,x>| + |<b,y>|)]\n");
fprintf(fpout, "\n");
}
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