Thank you for the reply.
Code:
cvx_begin sdp
cvx_solver mosek
variable W(2*length(Nbus),2*length(Nbus))
variable obj_gen(1,length(Gloc))
minimize sum(obj_gen)
subject to
%% constraint related to upper and lower bound for generated active ad reactive power
for obj_gen_idx=1:length(Gloc)
obj_gen1=Gloc(obj_gen_idx);
obj_gen(obj_gen_idx)==100*trace(Y_k(obj_gen1)*W);
end
for g_idx = 1:length(Nbus)
100*trace(Y_k(g_idx)*W)<=(Pmax(g_idx)-PD(g_idx)) ;
100*trace(Y_k(g_idx)*W)>=(Pmin(g_idx)-PD(g_idx));
100*trace(Y_k_bar(g_idx)*W)<=Qmax(g_idx)-QD(g_idx);
100*trace(Y_k_bar(g_idx)*W)>=Qmin(g_idx)-QD(g_idx);
end
%% semidefinite Constraint
W>=0;
cvx_end
where length(Nbus)=118 and length(Gloc)=54.
Mosek log:
Calling Mosek 8.0.0.60: 28492 variables, 526 equality constraints
MOSEK Version 8.0.0.60 (Build date: 2017-3-1 13:09:33)
Copyright © MOSEK ApS, Denmark. WWW: mosek.com
Platform: Windows/64-X86
Problem
Name :
Objective sense : min
Type : CONIC (conic optimization problem)
Constraints : 526
Cones : 0
Scalar variables : 526
Matrix variables : 1
Integer variables : 0
Optimizer started.
Conic interior-point optimizer started.
Presolve started.
Linear dependency checker started.
Linear dependency checker terminated.
Eliminator - tries : 0 time : 0.00
Lin. dep. - tries : 1 time : 0.00
Lin. dep. - number : 0
Presolve terminated. Time: 0.02
Optimizer - threads : 4
Optimizer - solved problem : the primal
Optimizer - Constraints : 526
Optimizer - Cones : 1
Optimizer - Scalar variables : 527 conic : 55
Optimizer - Semi-definite variables: 1 scalarized : 27966
Factor - setup time : 0.03 dense det. time : 0.00
Factor - ML order time : 0.02 GP order time : 0.00
Factor - nonzeros before factor : 1.39e+005 after factor : 1.39e+005
Factor - dense dim. : 0 flops : 6.37e+007
ITE PFEAS DFEAS GFEAS PRSTATUS POBJ DOBJ MU TIME
0 2.0e+000 1.0e+000 1.0e+000 0.00e+000 0.000000000e+000 0.000000000e+000 1.0e+000 0.08
1 4.1e-001 2.1e-001 9.5e-002 -5.62e-001 -5.367173577e+001 -5.007263546e+001 2.1e-001 0.17
2 9.3e-002 4.7e-002 1.0e-002 -9.82e-001 -2.864147999e+002 -2.670895713e+002 4.7e-002 0.22
3 4.3e-002 2.2e-002 3.3e-003 -9.80e-001 -6.164326353e+002 -5.743814342e+002 2.2e-002 0.25
4 1.6e-002 7.8e-003 7.4e-004 -9.67e-001 -1.622493115e+003 -1.511709788e+003 7.8e-003 0.28
5 1.0e-002 5.3e-003 4.2e-004 -9.13e-001 -2.263922875e+003 -2.109595456e+003 5.3e-003 0.33
6 3.3e-003 1.7e-003 8.7e-005 -8.60e-001 -5.612962467e+003 -5.248070426e+003 1.7e-003 0.36
7 2.0e-003 1.0e-003 5.2e-005 -5.13e-001 -6.811677164e+003 -6.419791464e+003 1.0e-003 0.39
8 5.7e-004 2.9e-004 1.6e-005 -1.87e-001 -8.679107862e+003 -8.374770424e+003 2.9e-004 0.44
9 2.3e-004 1.1e-004 1.1e-005 6.50e-001 -6.050865842e+003 -5.938835721e+003 1.1e-004 0.47
10 5.4e-005 2.7e-005 6.1e-006 1.13e+000 -1.858101797e+003 -1.838579738e+003 2.7e-005 0.50
11 1.6e-005 8.2e-006 3.1e-006 9.83e-001 8.348984041e+001 9.055577170e+001 8.2e-006 0.53
12 6.5e-006 3.3e-006 2.0e-006 1.04e+000 9.140234458e+002 9.167672872e+002 3.3e-006 0.58
13 2.6e-006 1.3e-006 1.3e-006 1.09e+000 1.235220677e+003 1.236245382e+003 1.3e-006 0.61
14 9.3e-007 4.7e-007 7.6e-007 1.06e+000 1.367086387e+003 1.367462471e+003 4.7e-007 0.64
15 3.7e-007 1.9e-007 4.8e-007 1.03e+000 1.410511547e+003 1.410662579e+003 1.9e-007 0.69
16 1.5e-007 7.4e-008 3.0e-007 1.02e+000 1.428198945e+003 1.428259303e+003 7.4e-008 0.72
17 7.2e-008 3.6e-008 2.1e-007 1.01e+000 1.433941874e+003 1.433971258e+003 3.6e-008 0.75
18 2.5e-008 1.2e-008 1.2e-007 1.00e+000 1.437786263e+003 1.437796370e+003 1.2e-008 0.80
19 8.0e-009 4.0e-009 7.0e-008 1.00e+000 1.439040025e+003 1.439043332e+003 4.0e-009 0.83
20 1.7e-009 8.8e-010 3.2e-008 1.00e+000 1.439552273e+003 1.439552979e+003 8.6e-010 0.86
21 4.0e-010 7.3e-010 1.6e-008 1.00e+000 1.439654728e+003 1.439654891e+003 2.0e-010 0.91
22 8.8e-011 4.3e-010 7.3e-009 1.00e+000 1.439679208e+003 1.439679245e+003 4.4e-011 0.94
23 1.6e-011 8.2e-009 3.2e-009 1.00e+000 1.439684810e+003 1.439684817e+003 8.2e-012 0.98
Interior-point optimizer terminated. Time: 0.98.
Optimizer terminated. Time: 1.02
Interior-point solution summary
Problem status : PRIMAL_AND_DUAL_FEASIBLE
Solution status : OPTIMAL
Primal. obj: 1.4396848105e+003 nrm: 1e+003 Viol. con: 6e-004 var: 1e-004 barvar: 0e+000
Dual. obj: 1.4396848172e+003 nrm: 6e+003 Viol. con: 0e+000 var: 8e-009 barvar: 1e-011
Optimizer summary
Optimizer - time: 1.02
Interior-point - iterations : 23 time: 0.98
Basis identification - time: 0.00
Primal - iterations : 0 time: 0.00
Dual - iterations : 0 time: 0.00
Clean primal - iterations : 0 time: 0.00
Clean dual - iterations : 0 time: 0.00
Simplex - time: 0.00
Primal simplex - iterations : 0 time: 0.00
Dual simplex - iterations : 0 time: 0.00
Mixed integer - relaxations: 0 time: 0.00
Status: Solved
Optimal value (cvx_optval): +1439.68
computation time is around 117 seconds.
cvx .mtimes function take around 105 seconds. Here is the profile viewer information for this function:
AS you can see, around 99 seconds is about the self-time.