[37] | 1 | function output = calllmilab(interfacedata) |
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| 2 | |
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| 3 | % Author Johan Löfberg |
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| 4 | % $Id: calllmilab.m,v 1.4 2005/05/07 13:53:20 joloef Exp $ |
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| 5 | |
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| 6 | % Retrieve needed data |
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| 7 | options = interfacedata.options; |
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| 8 | F_struc = interfacedata.F_struc; |
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| 9 | c = interfacedata.c; |
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| 10 | K = interfacedata.K; |
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| 11 | x0 = interfacedata.x0; |
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| 12 | ub = interfacedata.ub; |
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| 13 | lb = interfacedata.lb; |
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| 14 | |
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| 15 | % Bounded variables converted to constraints |
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| 16 | if ~isempty(ub) |
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| 17 | [F_struc,K] = addbounds(F_struc,K,ub,lb); |
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| 18 | end |
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| 19 | |
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| 20 | % Define lmilab variables (is this the way to do it?) |
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| 21 | setlmis([]) |
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| 22 | for i = 1:length(c) |
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| 23 | [X,ndec,Xdec] = lmivar(2,[1 1]); |
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| 24 | end |
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| 25 | |
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| 26 | % Can't linear constraints be defined more easily? |
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| 27 | lmicount = 1; |
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| 28 | top = 1; |
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| 29 | if K.l>0 |
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| 30 | for i = 1:K.l |
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| 31 | lmiterm([-lmicount 1 1 0],F_struc(i,1)); |
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| 32 | for j = 1:length(c) |
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| 33 | lmiterm([-lmicount 1 1 j],F_struc(i,j+1),1); |
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| 34 | end |
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| 35 | lmicount = lmicount+1; |
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| 36 | end |
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| 37 | top = top + K.l; |
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| 38 | end |
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| 39 | |
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| 40 | % The LMIs |
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| 41 | if K.s(1)>0 |
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| 42 | for i = 1:length(K.s) |
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| 43 | n = K.s(i); |
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| 44 | lmiterm([-lmicount 1 1 0],full(reshape(F_struc(top:top+n^2-1,1),n,n))); |
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| 45 | for j = 1:length(c) |
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| 46 | lmiterm([-lmicount 1 1 j],full(reshape(F_struc(top:top+n^2-1,j+1),n,n)),1); |
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| 47 | end |
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| 48 | top = top+n^2; |
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| 49 | lmicount = lmicount+1; |
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| 50 | end |
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| 51 | end |
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| 52 | lmisys=getlmis; |
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| 53 | |
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| 54 | % Convert options |
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| 55 | ops = struct2cell(options.lmilab);ops = [ops{1:end}]; |
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| 56 | if options.verbose>0 |
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| 57 | ops = [ops 0]; |
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| 58 | else |
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| 59 | ops = [ops 1]; |
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| 60 | end |
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| 61 | |
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| 62 | if options.savedebug |
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| 63 | save lmilabdebug lmisys c ops |
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| 64 | end |
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| 65 | |
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| 66 | % Solve... |
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| 67 | if options.showprogress;showprogress(['Calling ' interfacedata.solver.tag],options.showprogress);end |
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| 68 | solvertime = clock; |
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| 69 | if nnz(c)==0 |
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| 70 | [copt,x]=feasp(lmisys,ops); |
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| 71 | else |
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| 72 | [copt,x]=mincx(lmisys,full(c),ops); |
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| 73 | end |
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| 74 | solvertime = etime(clock,solvertime); |
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| 75 | |
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| 76 | % No status |
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| 77 | if isempty(x) |
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| 78 | problem = 1; |
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| 79 | x = repmat(nan,length(c),1); |
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| 80 | else |
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| 81 | problem = 0; |
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| 82 | end |
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| 83 | infostr = yalmiperror(problem,interfacedata.solver.tag); |
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| 84 | |
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| 85 | % No duals... |
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| 86 | D_struc = []; |
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| 87 | |
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| 88 | if options.savesolveroutput |
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| 89 | solveroutput.copt = copt; |
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| 90 | solveroutput.x = x; |
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| 91 | else |
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| 92 | solveroutput = []; |
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| 93 | end |
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| 94 | |
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| 95 | if options.savesolverinput |
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| 96 | solverinput.lmisys = lmisys; |
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| 97 | solverinput.c = c; |
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| 98 | solverinput.ops = ops; |
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| 99 | else |
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| 100 | solverinput = []; |
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| 101 | end |
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| 102 | |
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| 103 | % Standard interface |
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| 104 | output.Primal = x; |
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| 105 | output.Dual = D_struc; |
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| 106 | output.Slack = []; |
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| 107 | output.problem = problem; |
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| 108 | output.infostr = infostr; |
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| 109 | output.solverinput = solverinput; |
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| 110 | output.solveroutput= solveroutput; |
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| 111 | output.solvertime = solvertime; |
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