Esempio n. 1
0
    x0 = matrix(-lmbda[0]+1.0, (n,1)) 
    s0 = +w
    s0[::n+1] += x0
    # Initial feasible z is identity.
    z0 = matrix(0.0, (n,n))
    z0[::n+1] = 1.0

    dims = {'l': 0, 'q': [], 's': [n]}
    sol = solvers.conelp(c, Fs, w[:], dims, kktsolver = Fkkt,
        primalstart = {'x': x0, 's': s0[:]}, dualstart = {'z': z0[:]})
    return sol['x'], matrix(sol['z'], (n,n))


n = 10
w = normal(n,n)
run_go = True
if len(sys.argv[1:]) > 0:
    if sys.argv[1] == "-sp":
        helpers.sp_reset("./sp.data")
        helpers.sp_activate()
        run_go = False

x, z = mcsdp(w)
if run_go:
    print "\n *** running GO test ***"
    helpers.run_go_test("../testmcsdp", {'x': x, 'z': z, 'data': w})
else:
    print "w ", helpers.strSpe(w, "%.17f")
    #print "x=\n", helpers.strSpe(x, "%.17f")
    #print "z=\n", helpers.strSpe(z, "%.17f")
Esempio n. 2
0
    b = matrix([ 1.5, .0, -1.2, -.7, .0])
    m, n = A.size

    I = matrix(0.0, (n,n))
    I[::n+1] = 1.0
    G = matrix([-I, matrix(0.0, (1,n)), I])
    h = matrix(n*[0.0] + [1.0] + n*[0.0])
    dims = {'l': n, 'q': [n+1], 's': []}
    P = A.T*A
    q = -A.T*b

    #localcones.options.update(opts)
    #sol = localcones.coneqp(P, q, G, h, dims, kktsolver='chol')
    solvers.options.update(opts)
    sol = solvers.coneqp(P, q, G, h, dims)
    if sol['status'] == 'optimal':
        print "x=\n", helpers.strSpe(sol['x'], "%.5f")
        print "s=\n", helpers.strSpe(sol['s'], "%.5f")
        print "z=\n", helpers.strSpe(sol['z'], "%.5f")
        print "\n *** running GO test ***"
        helpers.run_go_test("../testconeqp", {'x': sol['x'], 's': sol['s'], 'z': sol['z']})

if len(sys.argv[1:]) > 0:
    if sys.argv[1] == "-sp":
        helpers.sp_reset("./sp.data")
        helpers.sp_activate()

testqp({'maxiters': 20})